Process for molding an integral skin foam and a polyurethane mat

Details Process for molding an integral skin foam and a polyurethane mat Process for molding an integral skin foam and a polyurethane mat

1994-03-14

1997-05-27

Nutter, Nathan M.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521159, 521170, 521174, 521176, 528 48, 264 51, C08J 934

Patent

active

056332890

ABSTRACT:
A process and a polyurethane material for molding a semi-rigid integral skin foam which comprising an integral skin having a low degree of foaming and a core having a high degree of foaming. The process includes evacuating a mold cavity to reduce the pressure thereof below atmospheric pressure; injecting into the evacuated mold cavity a polyurethane material; and foaming the material to fill the cavity. The polyurethane material contains a polyol component and an isocyanate component with, at most, 5 parts by weight of a solvent for 100 parts by weight of the polyol component, in the absence of freon.

REFERENCES:
patent: 3824199 (1974-07-01), Nadeau et al.
patent: 3954537 (1976-05-01), Alfter et al.
patent: 3970732 (1976-07-01), Slaats et al.
patent: 4042540 (1977-08-01), Lammerting et al.
patent: 4206170 (1980-06-01), Sassaman et al.
patent: 4285893 (1981-08-01), Contastin
patent: 4347330 (1982-08-01), Demou et al.
patent: 4379105 (1983-04-01), Taylor et al.
patent: 4510106 (1985-04-01), Hirsch
patent: 4517313 (1985-05-01), Nakatani
patent: 4555087 (1985-11-01), Wallner et al.
patent: 4572865 (1986-02-01), Gluck et al.
patent: 4576970 (1986-03-01), Ganster et al.
patent: 4579700 (1986-04-01), Cavender
patent: 4909972 (1990-03-01), Britz
patent: 4916168 (1990-04-01), Pham et al.
patent: 4988271 (1991-01-01), Kumasaka et al.
patent: 5100926 (1992-03-01), Kondo et al.
patent: 5116183 (1992-05-01), Lee
patent: 5132329 (1992-07-01), Lynch et al.
patent: 5166183 (1992-11-01), Franyutti et al.
Patent Abstracts of Japan, vol. 5, No. 190 (M-100) (1981).
Patent Abstracts of Japan, vol. 8, No. 057 (M-283) (1984).
Patent Abstracts of Japan, vol. 4, No. 105 (M-023) (1980).
Patent Abstracts of Japan, vol. 88, No. 1007 (M-750) (1988).

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