Beta-amino nitrile catalysts for polyurethane preparation

Details Beta-amino nitrile catalysts for polyurethane preparation Beta-amino nitrile catalysts for polyurethane preparation

C - Chemistry, Metallurgy

08

G

252/124, 403/31

C08G 18/40 (2006.01) C08G 18/18 (2006.01) C08G 18/20 (2006.01) C08G 18/63 (2006.01)

Patent

CA 1040788

BETA-AMINO NITRILE CATALYSTS FOR POLYURETHANE PREPARATION ABSTRACT OF THE DISCLOSURE Cellular urethane polymers essentially free of the strong, objectionable amine odor characteristic of N-ethylmorpholine, are provided by effecting the poly- urethane forming reaction in the presence of beta-tert- amino nitriles. In view of their low residual odor and effectiveness in the catalysis of the water-isocyanate reaction, the beta-amino nitriles either alone or in combination with other tertiary amines, are used with particular advantage as direct replacements for N-ethyl- morpholine in the manufacture of water-blown flexible polyurethanes, both molded and free-rise, including high- resilience foam as well as foams stabilized with either organosilicone or silicon-free organic surfactants. Especially effective for the formation of flexible poly- ester foam stabilized with either type of surfactant are blends of the beta-amino nitrile catalyst such as, in particular, 3-(N,N-dimethylamino)propionitrile, with dimethylethanolamine or a bis[2-(N,N-dimethylamino)alkyl]- ether. S P E C I F I C A T I O N

197574

Affiliated with

Also associated with

Rating

Beta-amino nitrile catalysts for polyurethane preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beta-amino nitrile catalysts for polyurethane preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beta-amino nitrile catalysts for polyurethane preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-354717