Reinforced fastening boss and method for making the same

Details Reinforced fastening boss and method for making the same Reinforced fastening boss and method for making the same

1992-07-20

1993-04-06

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

156 78, 156245, 264 451, 2642711, 428160, 4283179, 4283197, B32B 100, B32B 302, B32B 514

Patent

active

052002527

ABSTRACT:
A composite plastic article is provided which includes an improved boss for fastening the article to a supporting structure. The composite article includes a decorative outer skin co-molded to a reinforced foam layer. The foam layer is formed from a foaming resin such as polyurethane in an exothermic reaction. The boss is formed as a part of the foam layer and protrudes through the insert. A metallic fibrous material such as steel wool is molded into the boss to give the boss added structural integrity and to remove heat generated during formation of the boss and foam layer to thereby reduce cracking of the boss and localized blistering and delamination of the outer skin. A method for making such a boss is also provided.

REFERENCES:
patent: 4325178 (1982-04-01), Pruehs
patent: 4446185 (1984-05-01), Waragai et al.
patent: 4456644 (1984-06-01), Janz et al.
patent: 4477504 (1984-10-01), Bailey et al.
patent: 4663210 (1987-05-01), Schreiber et al.
patent: 4713202 (1987-12-01), Booth et al.
patent: 4743188 (1988-05-01), Gray et al.
patent: 4793784 (1988-12-01), Belleville et al.
patent: 4806094 (1989-02-01), Rhodes, Jr. et al.
patent: 4902362 (1990-02-01), Stewart et al.

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