发明名称 |
Method for imparting releasability to a substrate surface |
摘要 |
The invention provides a method for imparting releasability to the surface of a plastic film or paper by coating the surface with an organopolysiloxane composition followed by curing, in which the curing is complete by heating at a relatively low temperature and the cured surface film of the composition is very stable and free from the problem of transfer to another body in contact therewith. The composition comprises a vinyl-containing organopolysiloxane, an organohydrogenpolysiloxane and a platinum compound to catalyze the addition reaction between the silicon-bonded vinyl groups and silicon-bonded hydrogen atoms. Different from conventional organohydrogenpolysiloxane having a linear molecular structure, the organohydrogenpolysiloxane used in the invention is represented by the general unit formula (RSiO1.5)m(RHSiO0.5)n, in which R is a monovalent hydrocarbon group free form unsaturation and m and n are each a positive integer with the proviso that the ratio of n/m is from 0.1 to 3.0, or a combination thereof with a linear organohydrogenpolysiloxane.
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申请公布号 |
US4726964(A) |
申请公布日期 |
1988.02.23 |
申请号 |
US19860848814 |
申请日期 |
1986.04.04 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
ISOBE, KENICHI;AOKI, HISASHI;HARA, YASUAKI;KASHIDA, MEGURU;KONDOW, KIYOHIRO |
分类号 |
C08L83/00;C08L83/04;C08L83/05;C08L83/07;C09J7/02;D21H19/32;(IPC1-7):B05D3/06 |
主分类号 |
C08L83/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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