Morpholine and piperazine derivatives in a catalyst system for p

Details Morpholine and piperazine derivatives in a catalyst system for p Morpholine and piperazine derivatives in a catalyst system for p

1981-04-22

1982-04-20

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

252426, 521129, 528 53, C08G 1814

Patent

active

043260420

ABSTRACT:
The use of N-methoxypropylmorpholine, N-butylmorpholine and N,N'-dimethylpiperazine together as a catalyst system in an activator solution to give finer, more uniform cells to polyester-based polyurethane foams is described. While each of the amine catalysts has disadvantages when used alone in an activator solution, it was surprisingly discovered that together as a catalyst system none of the disadvantages were observed in the resulting polyurethane foam.

REFERENCES:
patent: 3645925 (1972-02-01), Speranza et al.
patent: 3993652 (1976-11-01), Bechara et al.
patent: 4228248 (1980-10-01), Zimmerman

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