Thermoplastic vacuum molding method and article produced...

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

B - Operations, Transporting

29

C

154/135, 154/80,

B29C 51/10 (2006.01) B32B 1/00 (2006.01) B32B 31/14 (1990.01)

Patent

CA 1302856

THERMOPLASTIC VACUUM MOLDING METHOD AND ARTICLE PRODUCED THEREBY ABSTRACT OF THE DISCLOSURE 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.

542614

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