Use of ester group containing polyols in a rim process

Details Use of ester group containing polyols in a rim process Use of ester group containing polyols in a rim process

C - Chemistry, Metallurgy

08

G

402/135

C08G 18/32 (2006.01) C08G 18/38 (2006.01)

Patent

CA 1334606

The present invention is directed to a process for the production of polyurethane moldings by reacting a reaction mixture comprising a) a polyisocyanate, b) an isocyanate-reactive material having a molecular weight of from about 840 to about 5,000, and c) a chain extender, said reaction mixture being processed as a one-shot system by the RIM process at an isocyanate index of from about 70 to about 130, the improvement wherein component b) comprises a polyester polyol selected from the group consisting of i) a polyester polyol having the idealized structure: Image ii) a polyester polyol having the idealized structure: Image and iii) mixtures thereof, wherein R represents the residue of a polyepoxide after ring opening with a carboxylic acid group, R' represents the residue of a cyclic anhydride, X represents the organic residue of a polyol, R" represents the residue of an aromatic anhydride or aromatic dicarboxylic acid, m represents the number of epoxy groups of the polyepoxide ring opened with carboxylic acid groups, n is an integer of from one to seven, and x is a number of from 1 to 15.

569033

Affiliated with

Also associated with

Rating

Use of ester group containing polyols in a rim process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of ester group containing polyols in a rim process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of ester group containing polyols in a rim process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1231265