Use of aminoimides as polyurethane catalysts

Details Use of aminoimides as polyurethane catalysts Use of aminoimides as polyurethane catalysts

1978-08-16

1979-05-29

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 53, C08G 1820

Patent

active

041567609

ABSTRACT:
Covers a method of producing a polyurethane by utilizing aminoimide compounds as catalysts in reacting an organic polyisocyanate with an organic polyester polyol or polyether polyol in the presence of said catalyst. Said aminoimides have the formula: ##STR1## where R.sub.1 and R.sub.2 are independently alkyl, or when taken together are selected from the group consisting of morpholino and piperazino, R.sub.3 is selected from the group consisting of --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH.sub.2 CH.sub.2 -- and ##STR2## AND N IS A NUMBER OF 1-6.

REFERENCES:
patent: 4077919 (1978-03-01), Schulze
patent: 4094827 (1978-06-01), McEntire

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