Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Simultaneous severing and shaping – or severing while work...
Patent
1998-03-11
2000-08-01
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Simultaneous severing and shaping, or severing while work...
264257, 264266, 264267, 425112, 425292, 425296, B29C 4514, B29C 4516, B28B 714
Patent
active
060962518
ABSTRACT:
A process for manufacturing a multilayered object by molding having the steps of placing a lining sheet in a mould, injecting a thermoplastic resin material beneath the lining sheet, distributing the thermoplastic resin material beneath the lining sheet to form at least one thermoplastic resin based inner layer by creating a reserve of the thermoplastic resin material in a peripheral portion of the object, holding the extending portion of the sheet in place on the mold during the step of injecting and after the step of injecting so as to retain peripheral tightness of the thermoplastic resin material on a sliding holding point on the punch during movement of the die, pressing the extending portion of the lining sheet against the mold, and sandwiching the reserve in a liquid state between the lining sheet and a portion of the mold until the injected resin material sets to thereby form the multilayered object. The extending portion remains hanging in relation to the punch during the holding of the extending portion.
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Lee Dae Young
Plastic Omnium Auto Interieur
Silbaugh Jan H.
LandOfFree
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