Method of compressively molding articles from resin coated fille

Details Method of compressively molding articles from resin coated fille Method of compressively molding articles from resin coated fille

1985-12-30

1987-11-24

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

264110, 264125, 264126, B29C 4300, B29C 6716

Patent

active

047088397

ABSTRACT:
A powder for use in compressing molding is made by coating a high amount of filler by weight, for example calcium metasilicate with a thermoplastic resin, for example, nylon. The amount of filler to nylon is typically above 60% to 98% by weight of the powder. The resultant powder is employed in a compressive molding process in a metallurgy press to manufacture an article which is structurally stable, and which is later solidified and strength increased by crystallizing the nylon or resin in an oven raised to the crystallization temperature of the resin to result in a compressively molded article having high strength characteristics and requiring a small amount of resin as compared to conventional molding processes.

REFERENCES:
patent: 3799799 (1974-03-01), Woodhams et al.
patent: 4065519 (1977-12-01), Koch
patent: 4466853 (1984-08-01), Hartmann et al.
Modern Plastics Encyclopedia, 1984-85, pp. 138-140.

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