Method for preparing silicone rubber molds

Details Method for preparing silicone rubber molds Method for preparing silicone rubber molds

1974-03-22

1976-11-02

Thurlow, Jeffery R.

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

260 37SB, 264220, 264255, 264313, 264337, B29C 102

Patent

active

039897907

ABSTRACT:
A silicone rubber mold is prepared by applying a room temperature curable, dough-like silicone composition to an area of a pattern which is vulnerable to high stress and thereafter the remainder of the pattern is coated with a flowable silicone composition which is curable at room temperature. The mold is cured and ultimately separated from the pattern being copied. The resulting silicone rubber molds may be used for high frequency flow molding.

REFERENCES:
patent: 3190947 (1965-06-01), Norcross
patent: 3222443 (1965-12-01), Dames, Jr. et al.
patent: 3303246 (1967-02-01), Forrest
patent: 3504079 (1970-03-01), Hall
patent: 3792147 (1974-02-01), Wohlfarth et al.
patent: 3825618 (1974-07-01), Pepe
"Flexible Urethane Molds for the Furniture Industry," SPE Journal, June 1969, vol. 25, pp. 53-55.

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