US4990546A
Expired / Lapsed
US
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UV-curable silphenylene-containing epoxy functional silicones
Assignee: General Electric Co
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Filing: 1990-03-23
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Granted: 1991-02-05
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Expires: 2010-03-23
Abstract
Abstract Silphenylene groups are incorporated into epoxy-functional silicones to improve the physical properties of otherwise weak and brittle UV-cured epoxy-functional silicones without adding fillers and without sacrificing fast, efficient UV cure speed. Such compositions are useful as conformal coatings, optical fiber coatings, and electrical encapsulation.
Inventors
- 👤 Richard P. Eckberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:38
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/445; C08K; C08K5/00; C08K5/0091; C08G77/48; C08G77/50; C09; C09D; C09D183/00; C09D183/14
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
85 words
A UV radiation curable composition comprising (A) a silarylene-containing epoxy-functional diorganopolysiloxane having the general formula: ##STR10## wherein E represents an epoxy-functional organic radical having from 2 to 20 carbon atoms; R is individually a lower alkyl radical having 1 to 8 carbon atoms; R 1 is a divalent aromatic organic radical having 6 to 14 carbon atoms; and x is a value of from 0 to about 100; and (B) a catalytic amount of a onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 2
Dependent Claim
85 words
A UV radiation curable composition comprising (A) a silarylene-containing epoxy-functional diorganopolysiloxane having the general formula: ##STR10## wherein E represents an epoxy-functional organic radical having from 2 to 20 carbon atoms; R is individually a lower alkyl radical having 1 to 8 carbon atoms; R 1 is a divalent aromatic organic radical having 6 to 14 carbon atoms; and x is a value of from 0 to about 100; and (B) a catalytic amount of a onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein R is a methyl group.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein R 1 is a phenylene radical.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein E has the formula ##STR11##
Claim 6
Dependent Claim
25 words
The composition of claim 1 wherein component (A) is a silphenylene-containing epoxy-functional dimethylpolysiloxane having the formula: ##STR12## wherein x equals about 10 to about 30.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein x is a number in the range of about 0 to about 50.
Claim 8
Dependent Claim
19 words
The composition of claim 6 wherein x is a number in the range of about 10 to about 30.
Claim 9
Dependent Claim
22 words
The composition of claim 1 wherein component (B) is present in an amount in the range of about 0.5% to about 5.0%.
Claim 10
Dependent Claim
12 words
The composition of claim 1 wherein component (B) is a diaryliodonium salt.
Claim 11
Dependent Claim
12 words
The composition of claim 9 wherein component (B) has the formula ##STR13##
Claim 12
Dependent Claim
13 words
The composition of claim 10 wherein component (B) is bis(dodecyl phenyl) iodonium hexafluoroantimonate.
Claim 13
Dependent Claim
42 words
A UV radiation curable composition comprising (A) a silphenylene-containing epoxy-functional dimethylpolysiloxane having the general formula: ##STR14## wherein x is about 10 to about 30 (B) about 0.5% to about 5.0% of bis(dodecyl phenyl)iodonium hexafluoroantimonate or a diaryliodonium salt having the formula: ##STR15##
Claim 14
Dependent Claim
42 words
A UV radiation curable composition comprising (A) a silphenylene-containing epoxy-functional dimethylpolysiloxane having the general formula: ##STR14## wherein x is about 10 to about 30 (B) about 0.5% to about 5.0% of bis(dodecyl phenyl)iodonium hexafluoroantimonate or a diaryliodonium salt having the formula: ##STR15##
Claim 15
Independent Claim
88 words
A method for making a UV-curable composition, comprising mixing (A) a silarylene-containing epoxy-functional diorganopolysiloxane having the general formula: ##STR16## wherein E represents an epoxy-functional organic radical having 6 to 14 carbon atoms having from 2 to 20 carbon atoms., R is individually a lower alkyl radical having 1 to 8 carbon atoms; R 1 is a divalent aromatic organic radical; and x is a value of from 0 to about 100; and (B) a catalytic amount of a onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 16
Independent Claim
88 words
A method for making a UV-curable composition, comprising mixing (A) a silarylene-containing epoxy-functional diorganopolysiloxane having the general formula: ##STR16## wherein E represents an epoxy-functional organic radical having 6 to 14 carbon atoms having from 2 to 20 carbon atoms., R is individually a lower alkyl radical having 1 to 8 carbon atoms; R 1 is a divalent aromatic organic radical; and x is a value of from 0 to about 100; and (B) a catalytic amount of a onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 17
Dependent Claim
11 words
The method of claim 13 wherein R is a methyl group.
Claim 18
Dependent Claim
12 words
The method of claim 13 wherein R 1 is a phenylene radical.
Claim 19
Dependent Claim
16 words
The method of claim 13 wherein E is derived from 4-vinylcyclohexeneoxide and has the formula: ##STR17##
Claim 20
Dependent Claim
31 words
The method of claim 13 wherein component (A) is a silphenylene-containing epoxy-functional dimethylpolysiloxane having the formula: ##STR18## wherein x is a number in the range of about 10 to about 30.
Claim 21
Dependent Claim
19 words
The method of claim 13 wherein x is a number in the range of about 0 to about 50.
Claim 22
Dependent Claim
19 words
The method of claim 18 wherein x is a number in the range of about 10 to about 30.
Claim 23
Dependent Claim
22 words
The method of claim 13 wherein component (B) is present in an amount in the range of about 0.5% to about 5.0%.
Claim 24
Dependent Claim
12 words
The method of claim 13 wherein component (B) is a diaryliodonium salt.
Claim 25
Dependent Claim
12 words
The method of claim 21 wherein component (B) has the formula ##STR19##
Claim 26
Dependent Claim
13 words
The method of claim 21 wherein component (B) is bis(dodecyl phenyl) iodonium hexafluoroantimonate.
Claim 27
Independent Claim
51 words
A method for making a UV-curable composition, comprising mixing (A) a silphenylene-containing epoxy-functional dimethylpolysiloxane having the general formula: ##STR20## wherein x is a number in the range of about 10 to about 30 (B) about 0.5% to about 5.0% of bis(dodecyl phenyl)iodonium hexafluoroantimonate or a diaryliodonium salt having the formula: ##STR21##
Claim 28
Independent Claim
51 words
A method for making a UV-curable composition, comprising mixing (A) a silphenylene-containing epoxy-functional dimethylpolysiloxane having the general formula: ##STR20## wherein x is a number in the range of about 10 to about 30 (B) about 0.5% to about 5.0% of bis(dodecyl phenyl)iodonium hexafluoroantimonate or a diaryliodonium salt having the formula: ##STR21##
References Cited (Backward Citations)
US4370358A
Cited
US4861901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-04 | 1994-08-06 | 1995-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-04 | 1998-08-06 | 1999-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-04 | 2002-08-06 | 2003-02-05 | $7700.00 | Window Closed / Lapsed |