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[Chemical Knowledge]：What are the upstream raw materials for IPDI and what are the downstream products?

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IPDI(Isopropylidene Diphenyl Isocyanate) is an important chemical raw material, widely used in polyurethane, polyurea, coatings, adhesives and other fields. In the chemical production chain, IPDI has many upstream and downstream related products, some of which are described in detail below.

upstream related products:

1. Aniline (Aniline): Aniline is an important raw material in the production process of IPDI, which forms isocyanate groups by reacting with phosgene.
2. Phosgene (Phosgene): Phosgene, as another raw material in the production of IPDI, reacts with aniline to form isocyanate.

downstream related products:

1. Polyurethane (Polyurethane):IPDI can be used as the main raw material for polyurethane production, reacting with polyols, chain extenders, etc. to generate polyurethane materials with excellent performance, which are widely used in furniture, construction, automobiles and other fields.
2. Polyurea (Polyurea):IPDI can react with amine compounds to generate polyurea material, which has excellent weather resistance, chemical corrosion resistance and other properties, and can be used in waterproof, anti-corrosion and other fields.
3. Coating (Coatings):IPDI can be used as the main film-forming material of coating, providing excellent weather resistance, chemical resistance, hardness and other properties, widely used in construction, automobile, ship and other fields.
4. Adhesive (Adhesives):IPDI can be used as the main component of adhesive, providing high strength, weather resistance, chemical resistance and other properties, and can be used in wood processing, construction, packaging and other fields.

In short, IPDI, as an important raw material for chemical production, has a wide range of upstream and downstream related products, involving many fields, and has an important impact on the development of the chemical industry.

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