Polyurethane foams incorporating alkoxylated aromatic diamine an

Details Polyurethane foams incorporating alkoxylated aromatic diamine an Polyurethane foams incorporating alkoxylated aromatic diamine an

1986-08-06

1988-05-10

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

25218218, 521167, 521174, 528 75, 528167, 424 49, C08G 1830

Patent

active

047436280

ABSTRACT:
This invention relates to crosslinker systems for polyurethane foams and a process for producing such foams. The polyurethanes are prepared by reacting an organic polyisocyanate with an organic compound having active Zerewitenoff hydrogen atoms, e.g., a polyol with an alkoxylated aromatic diamine crosslinker and an acetylenic glycol. Improved properties can be achieved, such as, higher load-bearing at equivalent foam density; higher tear; higher elongation and higher air flow.

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