Process for the manufacture of polyurethane foam moldings

Details Process for the manufacture of polyurethane foam moldings Process for the manufacture of polyurethane foam moldings

1996-07-08

1998-11-10

Cooney, Jr., John M.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 41, 264 50, 264 51, 521 80, 521155, 521159, C08J 904

Patent

active

058345272

ABSTRACT:
A process for the manufacture of polyurethane foam moldings is described wherein carbon dioxide physically dissolved under pressure is used as the blowing agent and a pressure is maintained in the mold cavity during the introduction of the polyurethane reactive mixture so as to prevent the complete release of the dissolved carbon dioxide.

REFERENCES:
patent: 3184419 (1965-05-01), Merriman
patent: 3666848 (1972-05-01), Harper et al.
patent: 4337318 (1982-06-01), Doyle
patent: 4783292 (1988-11-01), Rogers
patent: 4851167 (1989-07-01), Marc
Modern Plastics International, Mar. 1994, pp. 52-54.

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