Process for producing polyurethane-foam product molded...

Details Process for producing polyurethane-foam product molded... Process for producing polyurethane-foam product molded...

2006-04-18

2006-04-18

Kuhns, Allan R. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

C264S276000

Reexamination Certificate

active

07029610

ABSTRACT:
In a process for producing a polyurethane-foam product molded integrally with an insert, wherein a molded body, including a substrate and a polyurethane-foam molded body being molded integrally with the substrate, is produced, the substrate being disposed in an expansion-molding mold as the insert, a fine groove-shaped polyurethane-foam relief groove and a polyurethane-foam adjuster are formed in an end of the substrate and/or a mold surface of the expansion-molding mold which contacts with the substrate. The relief groove communicates with a cavity of the mold. The adjuster communicates with the relief groove, and has a volume larger than that of the relief groove. The relief groove and the adjuster can control the pressure exerted within the cavity. Polyurethane foam, which is formed by the relief groove and the adjuster, adheres to molded product. Therefore, it is possible to obviate the deflashing operation. An expansion-molding mold therefor is also disclosed.

REFERENCES:
patent: 4959184 (1990-09-01), Akai et al.
patent: 5114639 (1992-05-01), Kurz et al.
patent: 5356580 (1994-10-01), Clark et al.
patent: 5660771 (1997-08-01), Dunfee et al.
patent: 6375878 (2002-04-01), Gray et al.
patent: 33 01 677 (1984-07-01), None
patent: 250 496 (1987-10-01), None
patent: 196 17 284 (1997-11-01), None
patent: 62-279154 (1987-12-01), None
patent: 6-339935 (1994-12-01), None
patent: 8-155986 (1996-06-01), None
patent: 8-187737 (1996-07-01), None
patent: 9-11248 (1997-01-01), None
patent: 9-134179 (1997-05-01), None
patent: 10-205352 (1998-08-01), None

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