B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 69/02 (2006.01) B29C 43/18 (2006.01) B29C 45/14 (2006.01) B29C 51/10 (2006.01)
Patent
CA 2220797
A process for producing a product of predetermined shape having an outer skin with predetermined properties covering at least a portion of a molded body of material having predetermined properties different from said skin, the process comprising vacuum forming a thermoplastic skin selected for its properties against the surface of a vacuum ported wall portion of molding tooling configured to mold the product shape to conform the skin to the surface and seal off the vacuum ported wall portion, introducing a charge of molten or softened body material into the molding tooling and molding the molten or softened body material while forcing same under pressure against the vacuum formed skin, and after cooling opening the mold tooling and removing said product. The invention also relates to mold tooling for carrying out the process.
Cockle Dave
Hoedl Herbert K.
Maury Eufredo
Dennison Associates
Royal Ecoproducts Limited
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