Rhodium coated mold

Details Rhodium coated mold Rhodium coated mold

1982-09-29

1987-09-01

Woo, Jay H.

Static molds

Including coating or adherent layer

20419215, 249116, 249135, 425808, B29C 3356

Patent

active

046903704

ABSTRACT:
A novel coating (34) is provided on a member (24) which may be part of a mold (24). Plastic articles (10) which are made by injection molding within such a mold (24) can have a very smooth surface by replication of the surface coating (34). This allows the production of so-called rigid discs with a plastic core in place of the present day aluminum cores.

REFERENCES:
patent: 1822451 (1931-09-01), Oestnaes
patent: 3165786 (1965-01-01), Yagi et al.
patent: 3868271 (1975-02-01), Poley et al.
patent: 4116753 (1978-09-01), Tojyo et al.
patent: 4138086 (1979-02-01), Mizutani et al.
patent: 4140592 (1979-02-01), Orlando
patent: 4262875 (1981-04-01), Nyman et al.
patent: 4357366 (1982-11-01), Takaoka et al.
Dempsey, J. J., et al, "Low Stress Chromium Film", IBM Technical Disclosure Bulletin, vol. 19, No. 9, FEB. 1977.

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