Because of its good physical and chemical properties, green environmental protection, beautiful appearance and good touch, polyurethane synthetic leather products have gradually occupied a place in the leather product market and are widely praised. China has strived to develop in the production and research and development of polyurethane synthetic leather products, optimizing the production process, process specifications, facilities and equipment, and especially focusing on clean production and energy-saving work. The move from solventborne polyurethane to waterborne polyurethane resin materials is a major advance in cleaner production. Synthetic leather materials are innovating, and the production technology is constantly innovating. It can be said that the adjustment and replacement of raw materials fundamentally solves the problem of environmental protection, and can make the production process non-toxic and harmless, the output non-toxic and harmless, degradable, and environmentally friendly. The application of waterborne polyurethane resin materials and the application and recycling of dimethylformamide resins greatly reduce the pollution problems in the production of synthetic leather. Researchers in synthetic leather production should strengthen communication and cooperation with excellent polyurethane companies at home and abroad to jointly promote the research of waterborne polyurethane resins. Waterborne polyurethane resin materials put into production, it is necessary to carry out a comprehensive reform of production equipment process technology, etc., in theory, the energy consumption of waterborne polyurethane resin is lower than that of traditional solventborne polyurethane. Researchers continue to explore the principle of waterborne polyurethane, give full play to its advantageous role, and promote the development of synthetic leather production in a highly clean and green direction. Although the production of wat

With the improvement of environmental awareness, more and more enterprises have begun to pay attention to the environmental protection of packaging materials. In this context, polyurethane packaging foam came into being. Compared with traditional foam packaging materials, polyurethane packaging styrofoam has the following advantages: First, polyurethane packaging styrofoam meets Rohs reach environmental protection requirements and can be exported to Europe, America, Japan and South Korea, which is a relatively environmentally friendly material. Secondly, polyurethane packaging foam has high cushioning performance, which can effectively reduce the vibration and collision of goods during transportation, thereby reducing the damage rate of goods. Finally, polyurethane packaging styrofoam has good air permeability and moisture resistance, which can keep the goods dry and fresh. Therefore, polyurethane packaging styrofoam has become the choice of more and more enterprises, which can not only protect the environment, but also improve packaging efficiency and the safety of goods. Polyester polyols are typically liquid at room temperature and have a high molecular weight. They can be further reacted with isocyanates to form polyurethane materials, which have a wide range of applications in various industries, including automotive, construction, and furniture.

Polyurethane is a polymer resin condensed and polymerized by the basic chemicals isocyanate and polyol, which is an emerging organic polymer material and is known as the "fifth largest plastic". At present, polyurethane materials have been widely used in leather shoes, construction, furniture, home appliances and other fields, the specific application forms include wall insulation materials (hard foam), sofas and other fillers (soft foam), spandex (chemical fiber), plastic runway (elastomer), adhesives, coatings, etc., has become an indispensable and important material in life. After decades of development, polyurethane materials have covered all aspects of production and life, but there is still broad room for development in the future. 1. Rigid foam is the largest single application form of polyurethane materials. In the field of building insulation material exterior walls, China's polyurethane rigid foam accounts for 7%, while the United States is 65%, and there is still a lot of room for improvement. Secondly, the rapid development of China's cold chain logistics will bring greater demand for hard foam. 2. Due to its strong comfort, polyurethane soft foam is suitable for sports equipment such as yoga mats and sports equipment such as boxing gloves, which is in line with the consumption upgrading and comprehensive fitness development trend of China's clothing industry. 3. The use of composite high-density polyether polyurethane materials can be prepared into materials with memory function, which have viscoelastic characteristics, and can automatically change shape with the change of head and neck position, and maintain a tight fit with the neck at any time to prevent the head from slipping and causing "falling pillows". In addition, memory-type materials are used in human body mechanics, can absorb impact forces, and have functions such as memory deformation and automatic shaping. 4. P

Polyurethane adhesives are adhesives that contain urethane groups or isocyanate groups in the molecular chain. According to the classification of reaction composition, according to the reaction composition, it can be divided into polyisocyanate adhesive, polyurethane adhesive containing isocyanate group, hydroxyl polyurethane adhesive and polyurethane resin adhesive. According to the classification of use and characteristics, it can be divided into general adhesives, food packaging adhesives, shoe adhesives, paper-plastic composite adhesives, construction adhesives, structural adhesives, ultra-low temperature adhesives, foaming adhesives, anaerobic adhesives, conductive adhesives, hot melt adhesives, pressure-sensitive adhesives, sealing adhesives, water-based adhesives and sealants. However, no matter what kind of polyurethane adhesive, it is the isocyanate group in the system that reacts with the active hydrogen substances in or outside the system to generate polyurethane groups or polyureas, thereby greatly improving the strength of the system and achieving the purpose of bonding. So far, in addition to the original glue, solvent-free polyurethane structural glue, reactive polyurethane hot melt adhesive and other foreign glue are basically available in China. Although China's polyurethane industry has a considerable scale, there is still a big gap compared with developed countries, mainly because the output is not large, and the technical level is still low. Polyurethane adhesives are widely used in various fields with their excellent properties, and have increasingly become an important synthetic material in human life. Application of polyurethane adhesives 1. Polyurethane adhesive for automobile The introduction of large amounts of lightweight metals, composites and plastics into new automotive structures has led to a growing demand for automotive adhesives and sealants. The most widely used polyur

The use of thermal insulation materials is an important means to promote energy conservation and emission reduction of buildings, polyurethane foam materials have excellent physical and chemical properties, and are widely used in the field of building insulation. The proportion of polyurethane foam materials in the consumption of building insulation materials is more than 65% in Europe and the United States, and it is also increasing year by year in China. However, the limiting oxygen index (LOI) value of polyurethane foam material without flame retardant modification is only 19%, which is highly flammable, and the combustion speed is fast, and a large amount of heat and thick black smoke and toxic gases such as CO, NO, HCN and other toxic gases are released, which can easily cause suffocation, poisoning and death of personnel in the fire, causing serious loss of life and property. Therefore, it is of great significance to break through key technologies and develop environmentally friendly and efficient flame-retardant polyurethane foam materials. The application of flame retardants can significantly improve the flame retardant properties of polyurethane foams. In this paper, the application of inorganic flame retardants, organic flame retardants and organic-inorganic compound flame retardants to polyurethane foam materials by domestic and foreign researchers in the past three years will be classified and introduced. Organic-inorganic compound flame retardants have the dual advantages of organic and inorganic flame retardants, which are favored by researchers and are one of the important directions of flame retardant research of polyurethane foam materials in the future. At the same time, how to balance the flame retardant properties and mechanical properties of polyurethane foam materials still needs to be explored by researchers.

TPU, short for thermoplastic polyurethanes, also known as PU thermoplastics. It is a linear block copolymer composed of oligomer polyol soft segment and diisocyanate-chain extender hard segment, from its development point of view, in recent decades, TPU its composition by SGS ASTM F963 test results, does not contain cadmium, lead, mercury, arsenic, chromium and barium, in line with environmental protection standards, so it is also widely used, medical is no exception. TPU film is a new type of industrial material that can be continuously modified, which can further optimize performance and expand the application field through raw material modification, material formula adjustment, production process optimization, etc., which can give it strong and sustained vitality. In addition to the field of plastics, other fields are also widely used. 1. Mirui New Material Founded in 2009, Meirui New Materials Co., Ltd., a company listed on the Growth Enterprise Market of the Shenzhen Stock Exchange (stock code: 300848), located in Yantai Area, China (Shandong) Pilot Free Trade Zone, is a well-known domestic manufacturer of polyurethane materials (TPU, PUR, PUD, PU prepolymer, etc.) and fully biodegradable materials (PBS, etc.) and a national high-tech enterprise. 2. Lubrizol Lubrizol Life Sciences Healthcare accelerates the market for innovative medical devices by providing the healthcare industry with one-stop solutions from raw materials to contract manufacturing services. 3. BASF As an important foreign-invested enterprise in China's chemical industry, BASF has major production sites in Shanghai, Nanjing and Chongqing, while the Innovation Campus Shanghai is a global and Asia-Pacific R&D hub. 4. Covestro Covestro focuses on the automotive, construction, electronics and other industries, and develops reliable and environmentally frie

◆Exhibition background After more than half a century of development, the scale of polyurethane industry has expanded rapidly, the global polyurethane industry has maintained rapid development, and the growth rate of the industry far exceeds the global economic growth rate, among which polyurethane is widely used in real estate, refrigerators, freezers, chemicals, electronics, textiles, medical, building materials, automobiles, aerospace and other industries driven by the fastest development speed. With the rapid development of the construction field, automotive industry, electronic equipment, new energy and environmental protection industry, the demand for polyurethane products has been greatly stimulated. According to the China Polyurethane Industry Association, polyurethane is still growing at an annual rate of about 4.5% worldwide, of which the growth rate of refrigeration, footwear, textile, leisure and other fields is estimated to reach 5.7%, and the growth rate of furniture, bedding and industrial products is slightly lower, about 3.3% per year; Emerging countries in the Asia-Pacific region are supported by new downstream applications, with polyurethane growing at double-digit rates. Polyurethane products are used in a wide range of applications and are therefore developing rapidly worldwide. At present, the Asia-Pacific region, North America and Western Europe are the world's most important polyurethane production and sales regions, with a total consumption accounting for more than 85% of the global total, of which the Asia-Pacific region is already the world's largest polyurethane consumer market, accounting for about 45% of the global market share; This is followed by North America and Western Europe, which together account for about 40% of the global market. Therefore, the focus of polyurethane development in recent years and in the future will be concentrated in the Asia-Pacific region. In addition, in QT emerging coun

On February 15, 2023, Xuchuan Chemical's annual award ceremony was held at its headquarters in Suzhou to commend the company's advanced role model employees and teams with outstanding performance in 2022. 63 awardees from various centers and departments, heads of various departments, Chairman Jiang Ping, President Xia Feng, Vice President Li Peijian, and Production Director Zhang Weidong attended the commendation meeting. At the ceremony, Xia Feng, President of Xuchuan Chemical, affirmed the performance of various departments in the past year and pointed out the direction for the work in 2023. Awards are presented to the winners Excellent Department - International Business Division Chairman Jiang Ping delivered a speech Chairman Jiang Ping pointed out that in the changing external environment, the company has still achieved excellent results, which is the result of the joint efforts of all employees of the company. The future development of the company is inseparable from excellent talents, you must play an exemplary and leading role, do things steadfastly, be sincere, continue to carry forward the spirit of hard work and not afraid of difficulties, and strive together to achieve the business goals in 2023! shoe sole,footwear,polyurethane,cup,tpu,leather,ink,polyester polyol

The new year is unsealed and we go to a new journey together. On January 6th, Taicang Mayor Hu Weijiang and Vice Mayor Wang Liping led a team to visit and investigate Asahikawa Chemical (Suzhou) Co., Ltd.; Chairman Jiang Ping and President Xia Feng warmly welcomed the company's leadership team. During the visit, Mayor Hu Weijiang presented Asahikawa Chemical with the "2022 Taicang City Outstanding Contribution Enterprise" award, affirming Asahikawa Chemical's outstanding contributions to social economy and social responsibility in 2022, and extending New Year's greetings and blessings. Later, during the exhibition hall visit, Chairman Jiang Ping introduced the company's product research and development, production and operation to Mayor Hu and his entourage. At the beginning of the new year, the municipal party committee has brought confidence to the development of our enterprise in 2023; In the new year, we will continue to focus on the development of the polyurethane industry, promote the city's economic and social development, deepen vertically, widen horizontally, refine and strengthen, and achieve new breakthroughs. shoe sole,footwear,polyurethane,cup,tpu,leather,ink,polyester polyol

The new year is unsealed and we go to a new journey together. On January 6th, Taicang Mayor Hu Weijiang and Vice Mayor Wang Liping led a team to visit and investigate Asahikawa Chemical (Suzhou) Co., Ltd.; Chairman Jiang Ping and President Xia Feng warmly welcomed the company's leadership team. During the visit, Mayor Hu Weijiang presented Asahikawa Chemical with the "2022 Taicang City Outstanding Contribution Enterprise" award, affirming Asahikawa Chemical's outstanding contributions to social economy and social responsibility in 2022, and extending New Year's greetings and blessings. Later, during the exhibition hall visit, Chairman Jiang Ping introduced the company's product research and development, production and operation to Mayor Hu and his entourage. At the beginning of the new year, the municipal party committee has brought confidence to the development of our enterprise in 2023; In the new year, we will continue to focus on the development of the polyurethane industry, promote the city's economic and social development, deepen vertically, widen horizontally, refine and strengthen, and achieve new breakthroughs.

The 15th China (Shanghai) International Polyurethane Exhibition 2023 Date: September 19-23, 2023 Venue: National Exhibition and Convention Center (Shanghai) ● [Exhibition Overview] With the theme of "Innovative Technology Leading the Future", this exhibition has set the world's top benchmark for the development of polyurethane industry. The 15th China (Shanghai) International Polyurethane Exhibition will be held on September 19-23, 2023 at the National Exhibition and Convention Center (Shanghai). CIPE exhibition is committed to expanding international technology and industrial cooperation, enhancing the core competitiveness of innovative application of polyurethane industry, and building a platform for cooperation and exchange for ****, associations, enterprises, etc. CIPE2020 will once again conform to the national strategy of "Made in China 2025", focusing on displaying the new development achievements of polyurethane technology, interpreting the characteristics of polyurethane industry chain, wide radiation surface, high technology diffusion rate, strong joint effect, etc., leading 35,000 professionals to visit, negotiate and purchase. The exhibition with a huge scale, a new look, a new packaging image, a high starting point, deep service, highlighting the brand, interpreting the classics, gathering high-quality products, highlighting taste. The banner of the high industry brand highlights the high-end quality of the polyurethane industry, and presents it to the participants with the image of the most professional exhibition. Strive to create an annual event in the industry. It provides a good platform for accelerating the innovation and development of China's and even the global polyurethane industry. "Based in Shanghai, radiating the whole country", adhering to the purpose of serving the polyurethane industry and serving the market in all regions of the country, we strive to provide exhibi

In order to truly understand the needs of enterprises, solve the difficulties of enterprise recruitment, deepen school-enterprise cooperation, and promote the integration of production and education. On December 14, Hu Jianping, director of Jiangsu Provincial College Employment Guidance Service Center, leaders of Taicang City Human Resources and Social Security Bureau, Taicang Port District Human Resources and Social Security Bureau, Suzhou University of Science and Technology, Changshu Institute of Technology, and Taicang Jianxiong Vocational and Technical College Employment guidance teachers visited XUCHUAN Chemical for investigation . Li Peijian, Vice President of XUCHUAN Chemical, Zhang Dahua, R&D Director, and colleagues from relevant departments of the company warmly received. During the visit, Mr. Li led a group to visit the exhibition hall, and then held a symposium. At the meeting, the company's production scale, business overview and development vision were introduced in detail, and t

On October 30th, Liao Zengtai, chairman of Wanhua Chemical, and his party of 6 people visited the headquarters of Xuchuan Chemical, and Jiang Ping, chairman of Xuchuan Chemical, Xia Feng, president of Xuchuan Chemical, and other management of the company warmly received and expressed their sincere welcome to the visit of Chairman Liao of Wanhua Chemical! At the exchange meeting, Jiang Ping, chairman of Xuchuan Chemical, showed the achievements and future development strategies of Xuchuan Chemical in recent years from three aspects: Xuchuan Chemical's general situation, downstream development, and Xuchuan planning, and also expressed his heartfelt thanks to Wanhua for its support in the past. "As a strategic supplier of Xuchuan, Wanhua has maintained a close partnership for more than ten years, and the development of Xuchuan is inseparable from the support of Wanhua." Chairman Liao of Wanhua Chemical also affirmed and praised the rapid development and future planning of Xuchuan Chemical in recent years. At the same time, it also said that Wanhua Chemical is based on the new industrial development situation, insists on being a responsible supplier of chemical raw materials, provides customers with high-quality and stable products and services, provides guarantee for the steady development of the downstream industry, and will further support t

On October 30th, Liao Zengtai, Chairman of Wanhua Chemical, and his team of 6 people visited the headquarters of Asahikawa Chemical. Sincerely welcome! ● At the exchange meeting, Jiang Ping, chairman of Asahikawa Chemical, presented the achievements of Asahikawa Chemical in recent years and the future development strategy from three aspects: the general situation of Asahikawa, downstream development, and Asahikawa planning, and also expressed his heartfelt support for Wanhua in the past Thanks. "As a strategic supplier of Asahikawa, Wanhua has maintained a close partnership for more than ten years. The development of Asahikawa is inseparable from the support of Wanhua." ● Chairman Liao of Wanhua Chemical also affirmed and praised Asahikawa Chemical's rapid development and future planning in recent years. At the same time, it also stated that based on the new industrial development situation, Wanhua Chemical insists on being a responsible supplier of chemical raw materials, providing customers with high-quality and stable products and services, and providing guarantee for the steady development of downstream industries. Support the development of Asahikawa at various levels. ● During the meeting, the two parties further discussed the development of corporate talents and corporate culture. Wanhua Chemical has rapidly developed into a scale of 100 billion in just over ten years, and has become a world-class chemical company with technological innovation as its core competitiveness. Chairman Liao said that the talent strategy occupies an important position. Wanhua is passionate and thoughtful. , Mindfulness, Tenacity, Responsibility, and Achievement These "six haves" are the key words of talent portraits to recruit domestic and foreign talents, and the "six haves" are rooted in the hearts of every employee. Only by strengthening cultural construction can the enterprise Steady and far-reaching. Wanhua continues to actively promote t

Clothing leather, sofa leather, luggage leather, shoe soles, shoe uppers, car interior parts, plastic parts... the variety of new products in the sample showroom is dizzying. "The physical properties, material structure, breathability and moisture-proof properties of polyurethane produced with our products far exceed those of genuine leather." The person in charge of Asahikawa Chemical (Suzhou) Co., Ltd. said that Asahikawa Chemical has 5 modern production bases, including the Taicang factory in the port area. It is a high-tech enterprise with a polyurethane R&D center specializing in the R&D, production and sales of polyester polyols, polyurethane resins for shoe soles, polyurethane resins for artificial leather, polyurethane adhesives, etc. Its comprehensive strength has ranked among the "China Chemical Industry" for many years. the 500 strongest". the Leading the leather resin industry Next to the automated production line, a worker skillfully controls the equipment, and bags of products are produced from the production line. "This is a fully automatic production line that can complete feeding, control, packaging and other processes at one time. The amount of manual labor has dropped significantly. In the past, a production line required 20 people, but now it has dropped to 8 to 10 people." A person in charge of Asahikawa Chemical said Speaking of the polyurethane soles that just came off the production line, they said that they are soft, warm, oil-resistant, flex-resistant, and wear-resistant. They are more wear-resistant than rubber. Its density and hardness can be adjusted within a wide range according to the requirements of use, and it can be manufactured. Dual-color (double-density) double-layer soles, the lower sole is a micro-foamed high-wear-resistant surface, and the insole is an elastic foam that is comfortable to wear. It is much lighter than commonly used sole materials and is more suitable for thick soles tha

Clothing leather, sofa leather, luggage leather, soles, uppers, car interior parts, plastic parts... The variety of new products in the sample gallery is dizzying. "The polyurethanes produced with our products far exceed genuine leather in terms of physical properties, material structure, breathability and moisture resistance." The person in charge of Asahikawa Chemical (Suzhou) Co., Ltd. introduced that Asahikawa Chemical has 5 modern production bases, located in the port area of Taicang factory is a high-tech enterprise, built a polyurethane R & D center, specializing in polyester polyol, polyurethane resin for shoe sole, polyurethane resin for artificial leather, polyurethane adhesive and other research and development, production and sales, comprehensive strength for many consecutive years ranked "China's top 500 chemical industry". Leading the leather resin industry Next to the automated production line, a worker skillfully controls the equipment, and bags of products are generated from the production line. "This is a fully automatic production line, which can complete the feeding, control, packaging and other processes in one go. Labor usage has dropped dramatically, from 20 people on a production line to 8 to 10 people. A person in charge of Asahikawa Chemical took the polyurethane sole that had just come off the production line and said, it has the characteristics of lightness, warmth, oil resistance, flex resistance, wear resistance, etc., more wear-resistant than rubber, and can adjust its density and hardness in a wide range according to the requirements of use, can be made into a two-color (double density) double-layer sole, the lower sole is a slightly foamed high wear-resistant surface, the inner sole is comfortable to wear elastic foam, much lighter than the commonly used sole material, more suitable for impact resistance, anti-perforation platform shoes, the world's safety protective shoes (labor protection shoes

In order to promote the exchange of personnel within the organization, enhance the friendship of various departments, strengthen the unity within the enterprise, and stimulate the enthusiasm of employees in life. On July 25, the 2022 "Xuchuan Cup" basketball friendly tournament officially began. This basketball friendly game has more than 100 players from 10 teams participating. On the field, the players quickly entered the state, each majestic, have turned on the sports mode, you fight for me, you attack and defend. Clever passes, gorgeous turns, wonderful shots, and perfect cooperation won the applause of the audience. After fierce competition, the final champion and runner-up team also came into being. In this competition, in line with the principle of "friendship first, competition second", while promoting exchanges and cooperation between departments, we exercised our bodies, improved the cohesion and te

Technical field The present invention relates to a polyester polyol, particularly to polyester polyols for packaging adhesives. Background Packaging materials, especially composite packaging materials that are currently widely used, often use adhesives. Adhesive is a glue that can bond a single layer to form a multi-layer board, and is an important auxiliary material for the packaging industry There are many types of adhesives and packaging materials. Generally speaking, packaging materials are divided into paper-based materials, plastics, wood, aluminum foil, etc, the most commonly used plastic materials are also divided into PP, PE, PET, PVC, etc, those skilled in the art choose the appropriate adhesive through the different packaging materials selected. For example, when bonding paper-based materials, starch paste, dextrin and other adhesives are generally used; When bonding plastics, resin types of adhesives are generally used, such as thermoplastic resin polyurethane, polystyrene, polyacrylate, etc. When the adhesive is in a raw state, the viscosity is weak, and only after curing (that is, heating to a certain temperature) can it become a strong and strong substance with high bond strength. In general, after the raw state of the adhesive is mixed with the corresponding additive, the mixed slurry is transported by the pump to the corrugating machine, and then the corrugating machine is coated to the packaging film that needs to be bonded, and the two (or more layers) of the packaging film are superimposed and initially formed by extrusion of the high-temperature roller, and finally placed at a certain temperature to mature to stabilize the bonding

Recently, the project of "Development and Industrialization of a New Generation of Polyurethane Foam Stabilizer" hosted by Jiangsu MAYSTA Chemical Co., Ltd. passed the appraisal of scientific and technological achievements organized by the China Petroleum and Chemical Industry Federation. The appraisal committee believes that the overall technology of the project has reached the international advanced level and unanimously agreed to pass the appraisal. Sun Yu, chairman of MAYSTA Chemical, said that the project has developed a new generation of foam stabilizers suitable for a new generation of polyurethane blowing agents, including zero ozone depletion potential (ODP), low global warming potential (GWP) of polyurethane new foaming system rigid foam stabilizer, low odor, high flame retardant soft foam stabilizer series products, low volatility (VOC), low atomization (FOG) high resilience foam stabilizer series products, in the production process, Product technical indicators and material performance improvement and other aspects to achieve technological breakthroughs, improve the technical level of China's polyurethane industry chain and silicone industry chain, and promote the development of polyurethane foam industry to low-carbon, energy-saving, environmental protection and safety. "This project is the first time that China's polyurethane enterprises have successfully designed and developed a series of functional silicon-carbon foam stabilizers through structure-activity relationship research and molecular simulation technology, with application performance as the goal orientation, with completely independent intellectual

Technical field The present invention relates to a polyurethane resin, in particular a polyurethane resin used in the preparation process of microfiber fabrics. Background Microfiber is a typical representative of the new synthetic fiber that chemical fibers develop in the direction of high technology and high simulation, and can be made into simulated silk, imitation peach velvet, imitation suede, imitation wool and high-density products.Microfiber has opened up an unprecedented way out in the textile field, and its application range is very wide, from shoes, bags, sofas, leather goods to clothing, etc. all of which are sold as high-end products. The preparation process of microfiber fabric is: The use of ultra-fine island fiber non-woven fabric as the base fabric, the fiber using nylon or polyester and polystyrene mixed spinning, stretched with a solvent to extract polystyrene and prepared, the microfiber is cut short, comb cotton auxiliary mesh, needle into non-woven fabric, this non-woven fabric by polyvinyl alcohol treatment, drying with a grinder after grinding flat, with polyurethane slurry for impregnation, coating and water solidification, washing, toluene extraction method or alkali reduction method to extract polystyrene and other processes.Since polystyrene needs to be extracted with toluene or strong alkali in the preparation process of microfiber fabrics, the polyurethane resin slurry requires that it cannot be dissolved in toluene or strong alkali or cause performance degradation.The raw material formulation of polyure

Sun Yu, chairman of Mester, said that the project developed a new generation of foam stabilizers suitable for the new generation of polyurethane foaming agents, including zero ozone depletion potential (ODP), low global warming potential (GWP) Rigid foam stabilizers for new polyurethane foaming systems, low odor, high flame retardant flexible foam stabilizers, low volatility (VOC), low fogging (FOG) and high resilience foam stabilizers are in production Technological breakthroughs have been achieved in terms of technology, product technical indicators and material performance improvement, which has improved the technical level of China's polyurethane industry chain and organic silicon industry chain, and promoted the development of the polyurethane foam industry in the direction of low carbon, energy saving, environmental protection and safety. "This project is the first time that a polyurethane enterprise in my country has successfully passed the structure-activity relationship research and molecular simulation technology, and with application performance as the goal orientation, it has designed and developed a series of functional silicon-carbon-based foam stabilizers with completely independent intellectual property rights." Sun Yu Said that with this new technology, Mesid has completed the design, installation and commissioning of a 6,000-ton/year new generation of polyurethane foam stabilizer production line, and built a 22,000-ton/year green and automated production line for foam stabilizers. The project products have reached or surpassed similar foreign products in terms of key technical indicators, and have replaced the products of multinational companies to become the mainstream in the domestic market, and exported to European and American markets, achieving good economic, social and environmental benefits. The appraisal committee headed by Jiang Jianchun, an academician of the Chinese Academy of Engineering, believes that

In an effort to reduce greenhouse gas emissions from its polyol customers and downstream value chains, Perstorp AB (Malmö, Sweden) has announced that it is converting all of its base polyols – pentaerythritol (Penta), neopentyl glycol ( Neo) and Trimethylolpropane (TMP) - converted to Pro-Environment products. From 2023, all fossil fuel-based base polyols produced at the Perstorp plant will be replaced by Pro-Environment products (Voxtar, Evyrone and Neeture) with partially renewable or recycled origin, based on traceable quality balance concept. Pro-Environment products are ISCC PLUS certified and identical to fossil-based products, meaning they are drop-in replacements. These products benefit customers and the value chain by reducing greenhouse gas emissions and supporting the transition to renewable or recycled materials, in other words supporting the challenge of achieving climate neutrality. Jan Secher, CEO of Perstorp Group, said: [The phasing out of fossil-based polyols produced at the Perstorp plant is a bold move. But we believe it is the only way our industry can align with the Paris Agreement and significantly reduce greenhouse gas emissions. way out. As an upstream company in the chemical industry, we can and should positively impact multiple value chains by offering products with a reduced carbon footprint." Perstorp already launched the first environmentally friendly polyol in 2010. In 2017, Perstorp announced its long-term goal of becoming finite material neutral. Since the end of 2021, the company has set science-based emissions reduction targets in line with the Paris agreement. The transition to environmentally friendly polyols will significantly reduce Perstorp's use of limited materials and will also provide the market with products with a lower carbon footprint, thus contributing to

Technical field The present invention relates to a polyurethane resin, particularly to a polyurethane for high-resilience clothing leather. Background Polyurethane (PU) synthetic leather has the characteristics of soft luster, soft feel and excellent mechanical properties, making it the most ideal alternative to natural leather leather. Polyurethane synthetic leather has been developed for decades and has been widely used in many fields such as clothing, bags, shoe leather, furniture and automobiles. In recent years, synthetic leather technology has been rapidly developed, especially the development speed of synthetic leather for clothing leather is far ahead of other fields.The processing of polyurethane synthetic leather is a conventional wet process, that is, the polyurethane resin containing dimethylformamide (DMF) is coated on the jaw surface of the base cloth, and the polyurethane tree flies are condensed by the method of DMF exchange within the water and resin to form a polyurethane layer with a microporous structure. Usually the sex and feel of leather are determined by the resin it uses, and the change of resin type can obtain synthetic leather products of different species. The existing polyurethane for clothing leather is usually a mixture of polyester polyols and polyether polyols as polyol components, with ethylene adiyl or butanediol as a chain expander.For example, the Chinese invention patent ZL200810107274.5 disclosed polyurethane for clothing leather, the raw material formulation includes a molecular weight of 2000 polyethylene glycol butanediol adipic acid copolymer glycol glycol 8% ~ 10%, molecular weight of 2000 polyethylene glycol ether 8% ~ 10%, ethylene glyc

Chemicals company Huntsman has teamed up with Switzerland-based Brugg Pipes to develop a polyurethane (PU) foam with insulating properties that enables the production of highly flexible, pre-insulated pipes suitable for use in future Ground source heat pumps and heating installations are connected to residential and commercial buildings. Brugg Pipes has implemented Huntsman's Suprasec Daltofoam TE material portfolio in its Flexstar product, which will be launched in January 2022. According to Huntsman, the foam produced by the Suprasec Daltofoam TE material combination has better insulating properties (low lambda value) than polyethylene (PE), and its insulating layer is thinner than PE, but still has good overall insulating properties (low lambda value). U value). In addition, thinner, lighter pipes are more flexible, which means they can be shipped and installed faster and more easily. Demand for ground-source heat pumps is expanding in North America, Europe and North Asia because they have a lower carbon footprint compared to alternative technologies, according to Huntsman. Bora Yayla, Head of Marketing at Brugg Pipes, said: [We have wanted to enter the heat pump market for some time and needed a competitive insulation solution that would enable us to quickly gain a foothold in this market. The key to our success was in our Good bends in pre-insulated pipes to ensure easy handling without compromising insulation performance. More flexible pipes have a smaller winding radius which means they are easier to transport for engineers and installers faster flooring in tight spaces or where there are sharp turns and building entrances. Working with Huntsman, we achieved all expectations and the Flexstar product received orders from all over the world." According to Brugg Pipes, Flexstar pre-insulated pipes are specially designed for heat pump systems and are manufactured through a patented production process (