Process for producing a molded skin product

Details Process for producing a molded skin product Process for producing a molded skin product

1983-05-12

1985-11-12

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264DIG51, 425183, 425447, 425DIG20, B29C 502

Patent

active

045527156

ABSTRACT:
A process and an apparatus for producing a molded skin product such as an interior decoration member like an instrument panel for an automobile or other vehicle. The process includes charging a desired amount of synthetic resin powder into a treating container disposed facing a predetermined shaped molding mold surface. The mold surface is heated to a temperature of at least the melting temperature of the synthetic resin. The powder is spattered onto the mold surface by violently agitating the same by an agitation means whereby a fused coating of the powder is formed on the mold surface. The spattering is discontinued when the coating reaches a predetermined thickness. The mold surface is cooled thereby solidifying the coating to form the molded skin material. The molded skin material is then removed from the mold surface. The powder can be fluidized during the spattering. The apparatus includes the treating chamber for receiving a charge of synthetic resin powder, a metallic mold forming with the treating chamber a closed chamber with the mold having a mold surface facing the treating chamber, equipment for selectively heating and cooling the mold surface, and an agitation mechanism in the treating chamber for violently agitating the synthetic resin powder to spatter the same upwardly against the mold surface. The mold can be moveable from a closed position forming the closed chamber to an open position with the mold surface facing upwardly. The agitation mechanism includes at least one shaft and agitation blades mounted thereon.

REFERENCES:
patent: 3002231 (1961-10-01), Walker et al.
patent: 3880968 (1975-04-01), Kaspar et al.
patent: 3927161 (1975-12-01), Powell
patent: 3947165 (1976-03-01), Szatkowski

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