Diisocyanates and processes for their production and use

Details Diisocyanates and processes for their production and use Diisocyanates and processes for their production and use

C - Chemistry, Metallurgy

07

C

C07C 265/14 (2006.01) C07C 271/22 (2006.01) C07C 275/58 (2006.01) C07D 229/00 (2006.01) C07D 251/34 (2006.01) C08G 18/72 (2006.01) C08G 18/77 (2006.01)

Patent

CA 2149275

Diisocyanates containing carboxylic acid ester groups corre- sponding to the formula: (I) Image in which R and R1 represent specified groups are produced by phosgenation of the corresponding diamines, optionally present in the form of an ammonium salt. These diisocyanates are useful as starting materials in the production of plastics containing urethane and/or urea groups and as starting materials for the production of intermediate products used for the production of such plastics.

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