Manufacture of polymeric foams

Details Manufacture of polymeric foams Manufacture of polymeric foams

1993-07-08

1995-07-04

Bleutge, John C.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521160, 521917, C08G 1810

Patent

active

054300720

ABSTRACT:
A method for the preparation of flexible polymeric foam by reacting a polyisocyanate component with an isocyanate-reactive component comprising at least 50% by weight of water, the polyisocyanate component comprising at least two polyisocyanate compositions, one of them being a low NCO isocyanate terminated prepolymer and the second being a high NCO polyisocyanate.

REFERENCES:
patent: 4234693 (1980-11-01), Wooler
patent: 4261852 (1981-04-01), Carroll et al.
patent: 4297444 (1981-10-01), Gilbert et al.
patent: 4608397 (1986-08-01), Reischl
patent: 4668708 (1987-05-01), Mueller et al.
patent: 5070114 (1991-12-01), Watts et al.
J. Saunders & K. Frisch; "Polyurethanes;" 1962; pp. 30-31.

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