Process utilizing release agent

Details Process utilizing release agent Process utilizing release agent

1981-02-06

1982-05-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Of polyamidoester

156289, 264 23, 264555, 264556, 428 40, 428341, 428352, 428411, 428413, 428432, 428447, 428522, 428480, 428469, 4284259, 427162, 4273855, 4273884, 4273897, 4273935, 4274072, 427409, 4274125, B32B 2740, B32B 1706

Patent

active

043317367

ABSTRACT:
In the manufacture of plastic articles, particularly thermoset plastic sheets having good optical properties, by a process which involves forming the article on a surface to which the article tends to adhere, numerous and important advantages are realized by using, as a release agent which facilitates removal of the article from the surface, a salt of an addition product of a lower alkylene oxide which can be prepared by the fixation of a lower alkylene oxide on an organic material having a group reactive therewith, such as, alcohols, acids and amides, and subjecting the resulting product to esterification and neutralization.

REFERENCES:
patent: 2923646 (1960-02-01), Jordan
patent: 3413390 (1968-11-01), Heiss
patent: 3640954 (1972-02-01), Kraft
patent: 3803068 (1974-04-01), Mestetsky
patent: 3855052 (1974-12-01), Mestetsky
patent: 3882071 (1975-05-01), Olstowski
patent: 3882072 (1975-05-01), Olstowski
patent: 3979548 (1976-09-01), Schafer
"Release Agents", Encyclo. Poly. Sci. & Tech., vol. 12, pp. 57-65.

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