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US5198476A
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Ultraviolet-curable silicone composition for regulating peel strength
Assignee: Momentive Performance Materials Japan LLC
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Filing: 1991-06-27
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Granted: 1993-03-30
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Expires: 2011-06-27
Abstract
Abstract An ultraviolet-curable silicone composition comprising (A) 100 parts by weight of an epoxy-functional polyorganosiloxane which comprises structural units represented by the formula R 1 R 2 SiO, wherein R 1 represents hydrogen atom or a monovalent hydrocarbon group and R 2 represents hydrogen atom, a monovalent hydrocarbon group, or a monovalent epoxy-functional organic group, and in which at least two of all the organic groups are a monovalent epoxy-functional organic group; (B) from 1 to 80 parts by weight of at least one copolymer for regulating peel strength, which is soluble in component (A), selected from the group consisting of (i) a copolymer represented by a unit structure of MQ or M A Q, (ii) a copolymer represented by a unit structure of M A T, MT A or M A T A , and (iii) a copolymer represented by a unit structure of M A DQ, MD A Q or M A D A Q, wherein M represents an R 3 3 SiO 1/2 unit, M A represents an R 3 2 R 4 SiO 178 unit, D represents an R 3 2 SiO unit, D A represents an R 3 R 4 SiO unit, T represents an R 3 SiO 3/2 unit, T A represents an R 4 SiO 3/2 unit, and Q represents an SiO 2 unit, wherein R 3 is a monovalent hydrocarbon group containing no alkenyl group and R 4 is an alkenyl group; and (C) a catalytically effective amount of an onium salt as a photoinitiator.
Inventors
- 👤 Keiji Kobayashi
- 👤 Katsuya Kanemaru
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:03
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/06; C09; C09D; C09D183/00; C09D183/04; C09D183/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
252 words
An ultraviolet-curable silicone composition comprising (A) 100 parts by weight of an epoxy-functional polyorganosiloxane which comprises structural units represented by the formula R 1 R 2 SiO, wherein R 1 represents hydrogen atom or a monovalent hydrocarbon group and R 2 represents hydrogen atom, a monovalent hydrocarbon group, or a monovalent epoxy-functional organic group, and in which at least two of all the organic groups are a monovalent epoxy-functional organic group; (B) from 1 to 80 parts by weight of at least one copolymer for regulating peel strength, which is soluble in component (A), selected from the group consisting of (i) a copolymer represented by a unit structure of MQ or M A Q, (ii) a copolymer represented by a unit structure of M A T, MT A or M A T A , and (iii) a copolymer represented by a unit structure of M A DQ, MD A Q or M A D A Q, wherein M represents an R 3 3 SiO 1/2 unit, M A represents an R 3 2 R 4 SiO 1/2 unit, D represents an R 3 2 SiO unit, D A represents an R 3 R 4 SiO unit, T represents an R 3 SiO 3/2 unit, T A represents an R 4 SiO 3/2 unit, and Q represents an SiO 2 unit, wherein R 3 is a monovalent hydrocarbon group containing no alkenyl group and R 4 is an alkenyl group; and (C) a catalytically effective amount of an onium salt as a photoinitiator.
Claim 2
Dependent Claim
252 words
An ultraviolet-curable silicone composition comprising (A) 100 parts by weight of an epoxy-functional polyorganosiloxane which comprises structural units represented by the formula R 1 R 2 SiO, wherein R 1 represents hydrogen atom or a monovalent hydrocarbon group and R 2 represents hydrogen atom, a monovalent hydrocarbon group, or a monovalent epoxy-functional organic group, and in which at least two of all the organic groups are a monovalent epoxy-functional organic group; (B) from 1 to 80 parts by weight of at least one copolymer for regulating peel strength, which is soluble in component (A), selected from the group consisting of (i) a copolymer represented by a unit structure of MQ or M A Q, (ii) a copolymer represented by a unit structure of M A T, MT A or M A T A , and (iii) a copolymer represented by a unit structure of M A DQ, MD A Q or M A D A Q, wherein M represents an R 3 3 SiO 1/2 unit, M A represents an R 3 2 R 4 SiO 1/2 unit, D represents an R 3 2 SiO unit, D A represents an R 3 R 4 SiO unit, T represents an R 3 SiO 3/2 unit, T A represents an R 4 SiO 3/2 unit, and Q represents an SiO 2 unit, wherein R 3 is a monovalent hydrocarbon group containing no alkenyl group and R 4 is an alkenyl group; and (C) a catalytically effective amount of an onium salt as a photoinitiator.
Claim 3
Dependent Claim
31 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein from 1 to 20 mol % of all the organic groups in the epoxy-functional polyorganosiloxane (A) are an epoxy-functional organic group.
Claim 4
Dependent Claim
27 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein the organic groups other than epoxy-functional organic groups in the epoxy-functional polyorganosiloxane (A) are methyl or phenyl.
Claim 5
Dependent Claim
35 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein the content of M or M A in the units in the copolymer (B) for regulating peel strength is from 25 to 70 mol %.
Claim 6
Dependent Claim
34 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein the content of D or D A in the units in the copolymer (B) for regulating peel strength is 50 mol % or less.
Claim 7
Dependent Claim
26 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein said copolymer (B) for regulating peel strength contains an alkenyl group represented by R 4 .
Claim 8
Dependent Claim
19 words
An ultraviolet-curable silicone composition as claimed in claim 6, wherein the alkenyl group represented by R 4 is vinyl.
Claim 9
Dependent Claim
35 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein in the copolymer (B) for regulating peel strength, the monovalent hydrocarbon group represented by R 3 and containing no alkenyl group is methyl or phenyl.
Claim 10
Dependent Claim
117 words
An ultraviolet-curable silicone composition as claimed in claim 1, wherein said photoinitiator (C) is an onium salt represented by a formula R 5 2 I + MX n - , R 5 3 S + MX n - , R 5 3 Se + MX n - , R 5 4 P + MX n - , or R 5 4 N + MX n - , wherein R 5 is an aromatic hydrocarbon group and MX n - is an anion selected from the group consisting of BF 4 - , PF 6 - , AsF 6 - , SbF 6 - , SbCl 6 - , HSO 4 - , and ClO 4 - .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |