US5178959A
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Epoxy-functional fluorosilicones
Assignee: General Electric Co
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Filing: 1991-03-27
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Granted: 1993-01-12
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Expires: 2011-03-27
Abstract
Abstract Novel epoxy-functional fluorosilicones and UV-curable compositions containing these epoxy-functional fluorosilicones in combination with onium salt photoinitiators are provided, the UV-curable compositions having improved cure efficiency and improved solvent and fuel resistance as compared to epoxy-functional silicones containing only non-fluorinated organic groups. Such compositions are useful as conformal coatings, optical fiber coatings, and electrical encapsulation.
Inventors
- 👤 Richard P. Eckberg
- 👤 Edwin R. Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:33
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C09; C09D; C09D183/00; C09D183/04; C09D183/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
105 words
An epoxy-functional fluorosilicone selected from the group consisting of resinous epoxy-functional fluorosilicones having the general formula (III) ##STR29## and resinous epoxy-functional fluorosilicones having the general formula (IV) ##STR30## wherein E represents an epoxy-functional organic group of from about 2 to about 20 carbon atoms, R represents an alkyl radical having from 1 to about 10 carbon atoms, R 1 represents a perfluoroalkyl radical having from about 1 to about 8 carbon atoms, R 2 represents an alkyl radical having from 1 to about 10 carbon atoms, "c" represents a number from 1 to about 100, and "d" represents a number from 1 to about 100.
Claim 2
Dependent Claim
105 words
An epoxy-functional fluorosilicone selected from the group consisting of resinous epoxy-functional fluorosilicones having the general formula (III) ##STR29## and resinous epoxy-functional fluorosilicones having the general formula (IV) ##STR30## wherein E represents an epoxy-functional organic group of from about 2 to about 20 carbon atoms, R represents an alkyl radical having from 1 to about 10 carbon atoms, R 1 represents a perfluoroalkyl radical having from about 1 to about 8 carbon atoms, R 2 represents an alkyl radical having from 1 to about 10 carbon atoms, "c" represents a number from 1 to about 100, and "d" represents a number from 1 to about 100.
Claim 3
Dependent Claim
28 words
An epoxy-functional fluorosilicone according to claim 1 wherein E represents the radical ##STR31## wherein R 3 represents an alkylene radical having from 1 to about 10 carbon atoms.
Claim 4
Dependent Claim
14 words
An epoxy-functional fluorosilicone according to claim 2 wherein R 3 represents an ethylene radical.
Claim 5
Dependent Claim
16 words
An epoxy-functional fluorosilicone according to claim 1 wherein R 1 represents the radical --CF 3 .
Claim 6
Dependent Claim
13 words
An epoxy-functional fluorosilicone according to claim 1 wherein R represents a methyl radical.
Claim 7
Dependent Claim
18 words
An epoxy-functional fluorosilicone according to claim 1 wherein "c" represents a number from about 1 to about 20.
Claim 8
Dependent Claim
18 words
An epoxy-functional fluorosilicone according to claim 6 wherein "c" represents a number from about 1 to about 10.
Claim 9
Dependent Claim
18 words
An epoxy-functional fluorosilicone according to claim 1 wherein "d" represents a number from about 1 to about 20.
Claim 10
Dependent Claim
18 words
An epoxy-functional fluorosilicone according to claim 8 wherein "d" represents a number from about 1 to about 10.
Claim 11
Dependent Claim
170 words
An ultraviolet radiation-curable epoxy-functional fluorosilicone composition comprising: (1) an epoxy-functional fluorosilicone selected from the group consisting of: (A) linear epoxy-functional fluorosilicones having the general formula (I) ##STR32## (B) epoxy-functional fluorosilicones having the general formula (II) ##STR33## (C) resinous epoxy-functional fluorosilicones having the general formula (III) ##STR34## and (D) resinous epoxy-functional fluorosilicones having the general formula (IV) ##STR35## wherein E represents an epoxy-functional organic group of from about 2 to about 20 carbon atoms, R represents an alkyl radical having from 1 to about 10 carbon atoms, R 1 represents a perfluoroalkyl radical having from about 1 to about 8 carbon atoms, R 2 represents a an alkyl radical having from 1 to about 10 carbon atoms, "a" represents a number from 1 to about 100, "b" represents a number from 1 to about 100, "c" represents a number from 1 to about 100, and "d" represents a number from 1 to about 100; and (2) a catalytic amount of an onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 12
Dependent Claim
170 words
An ultraviolet radiation-curable epoxy-functional fluorosilicone composition comprising: (1) an epoxy-functional fluorosilicone selected from the group consisting of: (A) linear epoxy-functional fluorosilicones having the general formula (I) ##STR32## (B) epoxy-functional fluorosilicones having the general formula (II) ##STR33## (C) resinous epoxy-functional fluorosilicones having the general formula (III) ##STR34## and (D) resinous epoxy-functional fluorosilicones having the general formula (IV) ##STR35## wherein E represents an epoxy-functional organic group of from about 2 to about 20 carbon atoms, R represents an alkyl radical having from 1 to about 10 carbon atoms, R 1 represents a perfluoroalkyl radical having from about 1 to about 8 carbon atoms, R 2 represents a an alkyl radical having from 1 to about 10 carbon atoms, "a" represents a number from 1 to about 100, "b" represents a number from 1 to about 100, "c" represents a number from 1 to about 100, and "d" represents a number from 1 to about 100; and (2) a catalytic amount of an onium salt photocatalyst or a combination of onium salt photocatalysts.
Claim 13
Dependent Claim
29 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein E represents the radical ##STR36## wherein R 3 represents an alkylene radical having from 1 to about 10 carbon atoms.
Claim 14
Dependent Claim
15 words
An epoxy-functional fluorosilicone composition according to claim 11 wherein R 3 represents an ethylene radical.
Claim 15
Dependent Claim
17 words
An epoxy-functional fluorosilicone composition according to claim 12 wherein R 1 represents the radical --CF 3 .
Claim 16
Dependent Claim
14 words
An epoxy-functional fluorosilicone composition according to claim 13 wherein R represents a methyl radical.
Claim 17
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "a" represents a number from about 3 to about 30.
Claim 18
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 15 wherein, "a" represents a number from about 10 to about 20.
Claim 19
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "b" represents a number from about 3 to about 30.
Claim 20
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 17 wherein "b" represents a number from about 10 to about 20.
Claim 21
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "c" represents a number from about 1 to about 20.
Claim 22
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "c" represents a number from about 1 to about 10.
Claim 23
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "d" represents a number from about 1 to about 20.
Claim 24
Dependent Claim
19 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein "d" represents a number from about 1 to about 10.
Claim 25
Dependent Claim
36 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein the photocatalyst (2) is present in an amount within the range of about 0.5% to about 5.0% by weight based on the weight of the epoxy-functional fluorosilicone.
Claim 26
Dependent Claim
16 words
An epoxy-functional fluorosilicone composition according to claim 10 wherein the photocatalyst (2) is a diaryliodonium salt.
Claim 27
Dependent Claim
14 words
An epoxy-functional fluorosilicone composition according to claim 24 wherein the photocatalyst (2) is 4-octyloxyphenylphenyliodoniumhexafluoroantimonate.
Claim 28
Dependent Claim
6 words
The cured composition of claim 10.
Claim 29
Dependent Claim
19 words
An article of manufacture comprising a substrate having disposed on the surface thereof the curable composition of claim 10.
Claim 30
Dependent Claim
13 words
An article according to claim 27 wherein the substrate is a circuit board.
Claim 31
Dependent Claim
19 words
An article a manufacture comprising a substrate having disposed on the surface thereof the cured composition of claim 14.
Claim 32
Dependent Claim
13 words
An article according to claim 29 wherein the substrate is a circuit board.
Claim 33
Dependent Claim
14 words
The composition of claim 10 wherein the epoxy-functional fluorosilicone is a resinous epoxy-functional fluorosilicone.
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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) | 1996-01-12 | 1996-07-13 | 1997-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-12 | 2000-07-13 | 2001-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-12 | 2004-07-13 | 2005-01-12 | $7700.00 | Window Closed / Lapsed |