Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1982-03-23
1984-05-01
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264333, 264338, B29D 302, B28B 2156, B29G 700
Patent
active
044460910
ABSTRACT:
A carbon fiber-reinforced cement mould is provided which is capable of being thermally cycled continually at temperatures up to 200.degree. C. Such mould is particularly suitable for casting or forming plastic articles which require heating up to 200.degree. C. to effect curing. Because the mould remains free from cracking and surface spalling during such thermal cycling, it can be used over and over again.
REFERENCES:
patent: 2317597 (1943-04-01), Ford et al.
patent: 2324990 (1943-07-01), Carter
patent: 3783092 (1974-01-01), Majumdar
patent: 3834916 (1974-09-01), Kesler
patent: 4302414 (1981-11-01), Curnow et al.
Pairaudeau Reginald D.
Turnbull David
Fink David
Hoag Willard E.
Union Carbide Corporation
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