Mold release agents and means of application

Details Mold release agents and means of application Mold release agents and means of application

1981-11-23

1985-01-01

Smith, John D.

Coating processes

Mold coating

Metal mold

106 3824, 264338, 4273884, 427421, 252 41, 252 493, B29C 104

Patent

active

044916078

ABSTRACT:
Mold release agents and means for their application are provided. The release agents are used in coating molds for forming expandible plastics. They are especially applicable to polyurethane-based reaction injection molding (RIM) systems. The release agents, which have a controlled saponified fatty acid content (unsaturated as oleate and/or linoleate and saturated as C.sub.8 to C.sub.12 alkanoate) make for significant advantage with respect to ease of release, prevention of residual build-up, mold and part cleanability, health and safety, cost, etc.

REFERENCES:
patent: 3278430 (1966-10-01), Williams
patent: 3860521 (1975-01-01), Aepli et al.
patent: 3952079 (1976-04-01), Ozelli et al.
patent: 4038088 (1977-07-01), White et al.
patent: 4118235 (1978-10-01), Horiuchi et al.

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