Polyester backed acrylic composite molded structure and method o

Details Polyester backed acrylic composite molded structure and method o Polyester backed acrylic composite molded structure and method o

1995-06-07

1997-02-11

Seidleck, James J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156182, 156285, B29C 3902

Patent

active

056016808

ABSTRACT:
A polymeric composite structure having a polymeric shell layer with a finish-side and a non-finish side and a cross-linked thermosetting polymeric backing layer and method of manufacturing thereof is provided. The cross-linked thermosetting polymeric backing layer is simultaneously molded to conform to the shape of and bonded directly to essentially the entire non-finish side of the polymeric shell layer. The method includes forming the polymeric shell having a finish-side and non-finish side into a suitable shape, placing the shell into a mold, and introducing an uncured blended mixture of unsaturated thermosetting polymeric backing material and cross-linking promoter into the mold to force the backing material to directly coat the non-finish side of the shell. Curing the molded thermosetting polymeric backing material at a suitable temperature and sufficient time allows hardening and cross-linking of the thermosetting polymeric material and bonding directly to the non-finish side of the polymeric shell to permit demolding of the composite structure without damage.

REFERENCES:
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patent: 3582388 (1971-06-01), Stayner
patent: 3707434 (1972-12-01), Stayner
patent: 3720540 (1973-03-01), Wimmer
patent: 4126719 (1978-11-01), Koyanagi et al.
patent: 4290154 (1981-09-01), Benjamin
patent: 4844944 (1989-07-01), Graefe et al.

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