US4421904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet curable silicone coating compositions
Assignee: General Electric Co
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Filing: 1981-06-12
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Granted: 1983-12-20
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Expires: 2001-06-12
Abstract
Abstract Epoxy functional diorganosiloxane fluids are combined with bis-aryl iodonium salts, particularly linear alkylate bis-dodecylphenyl iodonium salts to form a silicone coating composition effective for rendering surfaces non-adherent to other surfaces which would normally adhere thereto, and which will cure to a final non-adherent state upon brief exposure to ultraviolet radiation. Adhesion of the silicone coating to a substrate can be improved with the addition of β-(3,4-epoxycyclohexyl)ethyltrimethoxy silane.
Inventors
- 👤 Richard P. Eckberg
- 👤 Ronald W. LaRochelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:32
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/075; G03F7/0757; C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08L; C08L83/00; C08L83/04; C08L83/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
An ultraviolet-curable epoxy functional silicone intermediate fluid composition comprising a pre-crosslinked epoxy functional dialkyl epoxy chainstopped polydialkyl-alkyl epoxy siloxane copolymer silicone fluid which comprises the reaction product of: (a) a vinyl- or allylic- functional epoxide; (b) a vinyl functional siloxane cross-linking fluid having a viscosity of approximately 1 to 100,000 centipoise at 25° C.; (c) a hydrogen functional siloxane precursor fluid having a viscosity of approximately 1 to 10,000 centipoise at 25° C.; and (d) an effective amount of precious metal catalyst for facilitating an addition cure hydrosilation reaction between said vinyl functional cross-linking fluid, said vinyl functional epoxide, and said hydrogen functional siloxane precursor fluid.
Claim 2
Dependent Claim
106 words
An ultraviolet-curable epoxy functional silicone intermediate fluid composition comprising a pre-crosslinked epoxy functional dialkyl epoxy chainstopped polydialkyl-alkyl epoxy siloxane copolymer silicone fluid which comprises the reaction product of: (a) a vinyl- or allylic- functional epoxide; (b) a vinyl functional siloxane cross-linking fluid having a viscosity of approximately 1 to 100,000 centipoise at 25° C.; (c) a hydrogen functional siloxane precursor fluid having a viscosity of approximately 1 to 10,000 centipoise at 25° C.; and (d) an effective amount of precious metal catalyst for facilitating an addition cure hydrosilation reaction between said vinyl functional cross-linking fluid, said vinyl functional epoxide, and said hydrogen functional siloxane precursor fluid.
Claim 3
Dependent Claim
18 words
A composition as in claim 1, wherein the vinyl- or allylic- functional epoxide is a cycloaliphatic epoxy compound.
Claim 4
Dependent Claim
22 words
A composition as in claim 2, wherein the cycloaliphatic epoxy compound is selected from the group consisting of 4-vinylcyclohexeneoxide, vinylnorbornenemonoxide, and dicyclopentadienemonoxide.
Claim 5
Dependent Claim
32 words
A composition is in claim 1, wherein the precious metal catalyst is a metal complex and the metal is selected from the group consisting of ruthenium, rhodium, palladium, osmium, irridium and platinum.
Claim 6
Dependent Claim
32 words
A composition as in claim 1, wherein said vinyl functional siloxane cross-linking fluid is selected from the group consisting of dimethylvinyl chainstopped linear polydimethylsiloxane, dimethylvinyl chainstopped polydimethyl-methylvinyl siloxane copolymer, tetravinyltetramethylcyclotetrasiloxane and tetramethyldivinyldisiloxane.
Claim 7
Dependent Claim
32 words
A composition as in claim 1, wherein said hydrogen functional siloxane precursor fluid is selected from the group consisting of tetrahydrotetramethylcyclotetrasiloxane, dimethylhydrogen chainstopped linear polydimethylsiloxane, dimethylhydrogen chainstopped polydimethyl-methylhydrogen siloxane copolymer and tetramethyldihydrodisiloxane.
Claim 8
Dependent Claim
24 words
A composition as in claim 1, further comprising an effective amount of β-(3,4-epoxycyclohexyl)ethyltrimethoxy silane for improving the adhesion of the composition to a substrate.
Claim 9
Dependent Claim
31 words
An ultraviolet-curable epoxy functional silicone intermediate fluid composition as in claim 1, further comprising bis (4-dodecylphenyl) iodonium salt effective for catalyzing an ultraviolet light initiated cure reaction of said intermediate fluid.
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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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |