Beta-amino nitrile catalysts for polyurethane preparation

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

1975-07-17

1977-07-26

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260 25AC, 260 75NC, 260 775AC, B01J 3102

Patent

active

040382109

ABSTRACT:
Cellular urethane polymers essentially free of the strong, objectionable amine odor characteristic of N-ethylmorpholine, are provided by effecting the polyurethane forming reaction in the presence of beta-tertamino 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-ethylmorpholine 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 polyester 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.

REFERENCES:
patent: 3821131 (1974-06-01), Priest et al.
patent: 3836488 (1974-09-01), Pruitt et al.

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: LFUS-PAI-O-725257