Sealing material and method

Details Sealing material and method Sealing material and method

1994-05-03

1996-03-05

Seidleck, James J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521170, 521174, 521133, 528 48, 528 52, 528 76, 528 85, 528492, 528502R, 528503, 524589, 524590, 524609, 524924, 156145, C08G 1800

Patent

active

054968682

ABSTRACT:
A sealing material is prepared by furnishing a liquid composition comprising a polydiene or polyolefin polyol, a polyisocyanate compound, a foam stabilizer, and a blowing agent, uniformly dispersing an inert gas in the liquid composition by mechanical agitation to form a bubbled composition, shaping the bubbled composition into a sheet shape, and heat curing the bubbled shape at a temperature below the decomposition temperature of the blowing agent. The sealing material is lightweight and has a high blowing magnification. On use, the sealing material is disposed in a cavity of an automotive pillar or similar member and heated for foaming to fill the cavity with the foamed product.

REFERENCES:
patent: 3772224 (1973-11-01), Marlin et al.
patent: 4264743 (1981-04-01), Maruyama et al.
patent: 4275172 (1981-06-01), Barth et al.
patent: 4412013 (1983-10-01), Chang

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