Thermoplastic vacuum molding method and article produced thereby

Details Thermoplastic vacuum molding method and article produced thereby Thermoplastic vacuum molding method and article produced thereby

1986-07-22

1988-04-26

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

156222, 156224, 156245, 1563096, 156285, 264321, 264511, 264553, 264DIG78, 4283099, 4283166, B29C 5110, B32B 100, B32B 3114

Patent

active

047404175

ABSTRACT:
A vacuum molding process for adhering a porous, foam-backed fabric 50 to a thermoplastic substrate 60 and for providing a nonplanar contour to the substrate 60 with fabric 50 adhered thereto. The porous, foam-backed fabric 50 is loosely positioned over a female mold 30. The substrate 60 is heated sufficiently for the substrate 60 to sag. The sagging substrate 60 is deposited over the female mold 30 in a manner whereby the substrate 60 contacts the fabric 50 around an effective mold perimeter 36. A vacuum applied through the female mold 30 is transmitted through the porous foam-backed fabric 50 and attracts the sagging substrate 60 into the mold 30. The attraction causes contact and adhesion of the heated substrate 60 and the foam-backed fabric 50.

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patent: 4350734 (1982-09-01), Hammond
patent: 4373057 (1983-02-01), Hammond
patent: 4395530 (1983-07-01), Hammond
patent: 4400422 (1983-08-01), Smith

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