Dyc^® series products are the polyester polyols synthetized with aliphatic diprotic acids, possessing the performance of narrow distribution of molecular weight, low chrominance, low moisture content etc., which can be used for polyurethane materials, such as elastomers, coatings, adhesives, and microcellular elastomer etc.

Among all the products, Dyc^® PST series are the polyester polyols specially used for solvent-resistance polyurethane elastomers. Synthetized with the Dyc^® PST series polyester polyol, the solvent resistance of polyurethane is two times better than the common polyurethane.

New type polyether polyols with property of low unsaturation, narrow molecular weight distribution, and super high weight molecular, purity, colorless and transparent are produced by DMC catalyst in continuous process with independent intellectual property rights I he super high and low molecular weight polyether with the molecular ranging from 700 to 12000 can be produced. Besides, copolyether of PO and EO can be customerized for a variety of structures and ratios. Primary hydroxyI content in high activity product can reach to 90% possessing extremely high reactivity, and quality is as good as world famous brand.

By regulating the chain ratio of EO/THF, it can obtain both hydrophilic and water-resistant, and suitable for waterborne polyurethane coatings. The customer used to test the formula with 20kg PET of molecular weight 2000. The performance is as good as 4220. The produced PU possessed better mechanical properties, permeability, and good biological compatibility. Widely used in high resilience flexible foams, water born coatings, adhesives, elastomer, low temperature material and biological materials. Special molecular weight 500-10000 PET can be provided according to customers' requirement

TMXDI is uniquely suited for waterborne application

• Manufacturing advantages

- Processing ease due to low pre-polymer viscosity

- Solvent free, no acetone or NMP

- Higher through-puts

• Performance advantages

TMI is a special unsaturated aliphatic isocyanate with bi-functionality, and contains active NCO and isopropenyl. It can be mainly used for latex modification, special polymer synthesis, and applicable range is from surfactant to functional plastics and polyurethane foam. Low-viscosity prepolymer produced by the reaction between TMI and polyols or polyamide, which is easy to be filtered and possesses good fluidity. Compared with the existing system, it could shorten the reaction time, improve color scale, without effect on aging performance.

Trimethylsiloxyl isocyanate(TMSI) is a special mono-functional isocyanate, which contains not only reactive isocyanate functionality but also special functional silane group. After end capping and acidulating silane of low reactivity hydroxyl polyols by TMSI, high reactivity terminal hydroxyl polyols can be obtained.

Good compatibility of silane group in TMSI's molecular structure with low surface energy materials could modify materials' surface, and supply isocyanate group with high bonding performance, therefore significantly improve bonding performance for those hard bonding materials.