Tertiary amine catalysts for polyurethanes

Details Tertiary amine catalysts for polyurethanes Tertiary amine catalysts for polyurethanes

C - Chemistry, Metallurgy

08

G

C08G 18/18 (2006.01) B01J 27/24 (2006.01) C07C 217/08 (2006.01) C07D 295/088 (2006.01) C08G 18/20 (2006.01)

Patent

CA 2041480

ABSTRACT The invention pertains to tertiary amines used as catalysts for the preparation of polyurethane foams prepared via the catalytic reaction of a polyisocyanate with a polyol in the presence of blowing agents, etc. The tertiary amine catalysts are prepared by reacting an olefinic nitrile with aliphatic polyol having at least secondary hydroxyl functionality in a ratio less than stoichiometric for providing cyanoalkylated polyol having residual hydroxyl functionality. The resulting cyanoalkylated polyol then is reacted with a secondary amine under conditions for effective reductive alkylation. The tertiary amine catalysts, because of residual secondary hydroxyl functionality, provide for uniform dispersion within a polyurethane formulation; they provide for additional or extended pot life in polyurethane formulations at temperatures below reaction condition, and they are bound by reaction on cure.

Affiliated with

Also associated with

Rating

Tertiary amine catalysts for polyurethanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tertiary amine catalysts for polyurethanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tertiary amine catalysts for polyurethanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1466244