Silicone release coating compositions

Details Silicone release coating compositions Silicone release coating compositions

1997-11-24

1999-06-22

Glass, Margaret W.

Stock material or miscellaneous articles

Composite

Of silicon containing

528 15, 528 20, 525478, C08G 7708

Patent

active

059141921

ABSTRACT:
This invention relates to a silicone release coating composition comprising an organopolysiloxane having at least 2 alkenyl groups in each molecule, an organopolysiloxane having at least 3 silicon-bonded hydrogen atoms in each molecule, a carbon-carbon triple bond-functional alcohol having a boiling point at ambient pressure of at least 140.degree. C., an organosilicon compound having at least 3 carbon-carbon triple bond-functional hydrocarbon groups bonded across oxygen to silicon, and a platinum catalyst. The silicone release coating compositions of this invention have excellent bath stability, form a very stable thin film on applicator rolls, cure rapidly even at relatively low temperatures, have stable curing characteristics during the course of bath aging, and exhibit stable release values during the course of bath aging.

REFERENCES:
patent: 3445420 (1969-05-01), Kookoosedes et al.
patent: 4032502 (1977-06-01), Lee et al.
patent: 5017654 (1991-05-01), Togashi et al.
patent: 5708046 (1998-01-01), Jones et al.

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