Process for the preparation of rigid polyurethane foam

Details Process for the preparation of rigid polyurethane foam Process for the preparation of rigid polyurethane foam

1996-05-07

1997-09-16

Gorr, Rachel

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521122, C08G 1830

Patent

active

056681879

ABSTRACT:
In a process for the preparation of rigid polyurethane foam from a polyol and a polyisocyanate, it is possible to prepare rigid polyurethane foam by using an aqueous polymer emulsion comprising a polymer of ethylenically unsaturated monomers whereby the amount of chlorofluorocarbon used can be decreased or eliminated.

REFERENCES:
patent: 3085983 (1963-04-01), Hardy
patent: 3755211 (1973-08-01), Fabris et al.
patent: 3948826 (1976-04-01), Smalheiser

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