Technology plays an important role in product design and development. It helps to improve product quality, enhance our brand and product popularity, and make our PA for resin, PMDA for polyimide film, UPR resin MA successfully enter the international market.Our main products are UPR resin MA, which are very popular all over the world and are exported to Europe, America and Africa. We are a company dedicated to innovation and technology. Our core spirit is to drive industry progress through continuous innovation and technological breakthroughs. We firmly believe that only through continuous learning and progress can we provide customers with the highest quality products and the most competitive solutions. We have a reputation for being a trustworthy and reliable partner in international trade. The business philosophy of "quality first, customer first, law first, mutual benefit and win-win" has been implemented, and the operational efficiency and quality of the company have been greatly improved. Relying on self-organized team, independent construction and independent innovation, our business efficiency is at the leading level in the industry, and we have formed a competitive advantage in the global field. Our commitment to continuous improvement ensures that we are always looking for ways to enhance our services. We'll continue to develop, to supply the high-quality goods and services, and promote lasting cooperation with our customers, common development and create a better future.
  • Maleic Anhydride
    Maleic anhydride (CAS 108-31-6), Purity 99.%min, we can supply Reach certificate.In stock.
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  • Pyromellitic Dianhydride
    Pyromellitic Dianhydride (CAS 89-32-7),We offer two grades of content: 98% and 99.5% .99.5% grade is the primary product for exporting. It is mainly used as a monomer for the synthesis of polyimide
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  • Cyanuric Acid
    Cyanuric acid (CAS 108-80-5), is also known as Isocyanuric acid and tricyanuric acid, it is white crystal that precipitates from water and contains two molecules of water of crystallization. It has a
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  • N,N-Methylenebisacrylamide
    N,N'-Methylenebisacrylamide (MBA) (CAS 110-26-9) ,is also known as methylene bis-acrylamide.It is white powder,odorless,minimal hygroscopicity.It is easy to self-crosslink in case of high
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  • Acrylamide Crystal 98%
    Acrylamide Crystal 98% (CAS 79-06-1 ), also known as AM, the molecule of it has two active centers,both weak acidic and weak alkaline, so it is easy to self-polymerize.It is soluble in
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  • Polyester Polyols For Polyurethanes
    Polyester polyols are an important material for the manufacture of polyurethane hard foam insulation, soft foam, adhesives, elastomers, paints, inks, sealants, leather resins, shoe resins, TPU, and
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  • 1,3-Bis(4-aMinophenoxy)benzene
    1, 3-bis (4-aMinophenoxy)benzene, TPE-R, CAS 2479-46-1, molecular formula C18H16N2O2, molecular weight 292.3318. It is a kind of chemical intermediate, containing two ether bonds and three benzene
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  • Diphenylmethane
    Diphenylmethane (CAS 101-81-5), with a purity of 99.0% minimum, has aromatic properties and serves as an important intermediate in organic synthesis. It and its derivatives are widely used in various
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  • Acetoxime
    Acetoxime (CAS 127-06-0), Purity 99.5% min, is a raw material used in the production of medicines, pesticides, dyes, and silicone coupling agents.
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  • Trimellitic Anhydride
    Trimellitic Anhydride (CAS 552-30-7), Purity 97% min, is a white, flaky solid and primarily used to produce the PVC plasticizer dioctyl trimeric acid (TOTM).
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  • Phthalic Anhydride
    Phthalic anhydride (CAS 85-44-9), purity 99.5%. We can provide both OX-BASE PA and NP-BASE PA. Our OX-BASE PA exceeds the national standard for superior grade.
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  • Pyromellitic Acid
    Pyromellitic acid (CAS 89-05-4), Purity 99.0% min. It is obtained by hydrolyzing the crude pyromellitic dianhydride and it is the main raw material used in the production of the curing agent B68 for
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There are many similar products and suppliers in the market, but only this company stands out because only they make us feel that our purpose is the same. Those who can serve our company attentively,
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The product has just been received, the logistics is very fast and arrived the next morning, I like it very much, very good.
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We are very lucky to have you as our supplier.
Stan Magee star star star star star
We have been working with this manufacturer for many years and their products are of good quality.
Marvin Enriquez star star star star star
The cooperation experience with this company is excellent! Their service attitude is very good, and the workmanship of products is very fine.
See Shropshire star star star star star
Considering the technical requirements of our products and projects, the excellent ability of the employees of this company is very trustworthy. Sure enough, the final products worked really well.
UPR - Shanghai Douwin Chemical Co.,Ltd....

UPR is made up of styrene, maleic anhydride, PA, DEG, propylene glycol, ethylene glycol, and others. Unsaturated polyester resins are widely used in a variety of industries, such as...

Exploring Unsaturated Polyester Resin: Properties, …...

Feb 22, 2024 · Discover the versatility of unsaturated polyester resin (UPR) in various industries. This article explores UPR’s composition, production process, and applications, from...

Unsaturated Polyester Resin – dynatecfibreresins...

Construction: UPR is used in composite panels, roofing, and cladding systems, providing structural strength and durability. Automotive: Essential for lightweight, high-strength...

What is UPR resin-Union Composites...

UPR resin, which stands for Unsaturated Polyester Resin, is a thermosetting resin that plays a crucial role in various industries due to its unique properties and wide range of applications....

Unsaturated Polyester Resin | Polynt...

Specifically, the unsaturated polyester resin, also known by the English acronym UPR, is an easily printable liquid polymer which, once cured (cross-linked with styrene, by the use of particular...

Unsaturated Polyester Resins: Road to Recovery...

Dec 8, 2021 · Both European and US unsaturated polyester resin (UPR) prices saw back-to-back monthly increases throughout the first half of 2021. The market continued to see unexpectedly high demand...

Our core values are: Integrity, Inclusion, Confidence, Execution, Innovation, Responsibility in Hexamethonium hydroxide solution, Tetra n Butylammonium bromide industry! As one of the leading UPR resin MA manufacturers and suppliers in China, we warmly welcome you to buy high purity UPR resin MA made in China here from our factory. All chemical products are with high quality and competitive price.
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