Polyurethane/polycarbonate compatibility

Details Polyurethane/polycarbonate compatibility Polyurethane/polycarbonate compatibility

1989-05-22

1990-12-25

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521118, 521129, 521155, 524700, 528 44, 528 49, 528 85, C08G 1814

Patent

active

049803859

ABSTRACT:
A molded flexible polyurethane composition having improved polycarbonate compatibility comprising an organic polyisocyanate, a polyol and reactive tertiary amine catalyst. This catalyst contains at least one active hydrogen and/or hydroxyl group in its structure. Another embodiment of this invention relates to a molded flexible polyurethane composition having improved polycarbonate compatibility comprising an organic polyisocyanate, a polyol, a non-reactive tertiary amine catalyst and, an amine scavenger composition which may or may not also contain reactive tertiary amine catalysts. Also disclosed are processes for making said molded flexible polyurethane compositions having improved polycarbonate compatibility.

REFERENCES:
patent: 2995530 (1961-08-01), Frisch et al.
patent: 4101462 (1978-07-01), Cuscurida et al.
patent: 4430455 (1984-02-01), Raden et al.
patent: 4510269 (1985-04-01), Kopp et al.
patent: 4701473 (1987-10-01), Masazumi et al.
patent: 4714719 (1987-12-01), Yamasaki et al.
patent: 4761307 (1988-08-01), Haas et al.

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