Process utilizing release agent
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United States of America Patent
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May 25, 1982
Issued Date -
N/A
app pub date -
Feb 6, 1981
filing date -
Mar 8, 1977
priority date (Note) -
Expired
status (Latency Note)
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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.
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