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[Chemical Knowledge]：What are the upstream raw materials for isophorone diisocyanate? What are the downstream products?

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Isophorone diisocyanate (IPDI) is an important chemical raw material, widely used in polyurethane, polyurea, rubber, coatings and other fields. There are many upstream and downstream related products, some of which are described in detail below.

upstream related products:

1. Isophorone: Isophorone is the main raw material of IPDI. It is a compound prepared by the aldol condensation reaction of acetone and acrolein.

2. phosgene: phosgene is an important intermediate in the production of IPDI, prepared by the reaction of carbon monoxide and chlorine.

downstream associated products:

1. Polyurethane prepolymer: IPDI can react with polyol to produce polyurethane prepolymer, and further react with chain extender, crosslinking agent, etc. to obtain polyurethane elastomer, polyurethane foam and other materials.

2. Polyurethane coatings: IPDI can be used as raw materials in coatings and mixed with resins, pigments, solvents, etc. to produce polyurethane coatings with excellent weather resistance, chemical resistance and decoration.

3. Polyurea: IPDI can react with amine compounds to produce polyurea, which has excellent wear resistance, impact resistance and water resistance, and can be used in waterproof coatings, wear-resistant flooring and other fields.

4. Rubber: IPDI can be used as an additive in rubber to improve the wear resistance, crack resistance and oil resistance of rubber.

In short, as an important chemical raw material, IPDI has a wide range of upstream and downstream related products, involving many fields, which plays an important role in promoting the development of the chemical industry.

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