Release agent for removing plastics, especially polyurethane pla

Details Release agent for removing plastics, especially polyurethane pla Release agent for removing plastics, especially polyurethane pla

1980-04-22

1982-01-26

Anderson, Philip

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

252 52A, 252 56S, 264338, B28B 736, B29C 104

Patent

active

043126723

ABSTRACT:
A release agent applied to the surface of a mold in the form of a film to permit ready removal of plastic, particularly polyurethane, from the mold. The release agent contains a film-forming substance having an affinity to the plastic and becomes attached to the plastic and is removed with the plastic when taken out of the mold thereby preventing buildup of film-forming substance in the mold. A cross-linking agent and/or a cross-linking catalyst and/or emulsifier and/or tenside may advantageously be incorporated in the release agent.

REFERENCES:
patent: 3189629 (1965-06-01), Huttenlocher et al.
patent: 3468991 (1969-09-01), Krug
patent: 3487134 (1969-12-01), Burr
patent: 3694530 (1972-09-01), Wolfe
patent: 3875069 (1975-04-01), Worschech et al.
patent: 4038088 (1977-07-01), White et al.
patent: 4209564 (1980-06-01), Nomura et al.
patent: 4217394 (1980-08-01), Newkirk et al.
Hackh's Chemical Dictionary, 4th Edition, p. 665.

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