发明授权
- 专利标题: Photocurable organopolysiloxane compositions
- 专利标题(中): 光固化有机聚硅氧烷组合物
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申请号: US68593申请日: 1979-08-22
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公开(公告)号: US4303484A公开(公告)日: 1981-12-01
- 发明人: Minoru Takamizawa , Fumio Okada , Yasuaki Hara , Aoki, Hisashi
- 申请人: Minoru Takamizawa , Fumio Okada , Yasuaki Hara , Aoki, Hisashi
- 申请人地址: JPX Tokyo
- 专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 主分类号: C08F2/46
- IPC分类号: C08F2/46 ; C08L83/08 ; D21H19/32 ; G03F7/075
摘要:
A novel photocurable composition suitable for preparing, for example, release papers is proposed which is formulated with photocrosslinkable organopolysiloxanes necessitating no conventional photosensitizers. Thus, the composition comprises(a) an organopolysiloxane having at least two mercaptoalkyl, e.g. mercaptopropyl, groups bonded to the silicon atoms in a molecule,(b) an organopolysiloxane having at least two alkenyl, e.g. vinyl groups directly bonded to the silicon atoms in a molecule, and(c) an organopolysiloxane having at least one benzoin group ##STR1## where Ph is a phenyl group, bonded to the silicon atom in a molecule, which component (c) serves as a photosensitizing ingredient. Alternatively, the inventive composition comprises (a) a mercaptoalkyl-containing organopolysiloxane as above and (b') an organopolysiloxane having, simultaneously, at least two alkenyl groups and at least one benzoin group directly bonded to the silicon atoms in a molecule, which component (b') serves both as the crosslinking agent and as the photosensitizing ingredient simultaneously. Owing to the unquestionable affinity of the photosensitizing ingredient with the other components, the inventive compositions have very high sensitivity in photocuring along with several other advantageous characteristics.
公开/授权文献
- US6065685A Spray nozzle 公开/授权日:2000-05-23