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US5360833A
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US
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Controlled release compositions for UV curable epoxysilicone release agents
Assignee: General Electric Co
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Filing: 1992-11-25
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Granted: 1994-11-01
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Expires: 2012-11-25
Abstract
Abstract A UV curable epoxysilicone blend of an epoxy functional silicone resin containing Q groups, epoxy functional M groups, and at least one member selected from D groups and T groups, at least 5 parts of the sum of M groups and epoxy functional M groups per 10 parts of the sum of Q groups, D groups and T groups; and an epoxy-stopped silicone fluid containing epoxy functional M groups.
Inventors
- 👤 Richard P. Eckberg
- 👤 Robert F. Agars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:29
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/06; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3254; C09; C09D; C09D183/00; C09D183/04; C09D183/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids which in the presence of an efficacious amount of 'onium photocatalyst is curable when exposed to ultraviolet radiation, said blend comprising: (A) about 60% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 40% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 2
Dependent Claim
121 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids which in the presence of an efficacious amount of 'onium photocatalyst is curable when exposed to ultraviolet radiation, said blend comprising: (A) about 60% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 40% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 3
Dependent Claim
14 words
An epoxysilicone composition as in claim 1, wherein said epoxy-functional M group is ##STR5##
Claim 4
Dependent Claim
128 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids which in the presence of an efficacious amount of 'onium photocatalyst is curable when exposed to ultraviolet radiation, said blend comprising: (A) from about 80 to about 20% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 20 to about 80% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 5
Dependent Claim
128 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids which in the presence of an efficacious amount of 'onium photocatalyst is curable when exposed to ultraviolet radiation, said blend comprising: (A) from about 80 to about 20% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 20 to about 80% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 6
Dependent Claim
14 words
An epoxysilicone composition as in claim 1, wherein said epoxy-functional M group is ##STR6##
Claim 7
Dependent Claim
116 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids curable in the presence of an efficacious amount of photocatalyst and ultraviolet radiation, said blend comprising: (A) about 60% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 40% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 8
Dependent Claim
116 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids curable in the presence of an efficacious amount of photocatalyst and ultraviolet radiation, said blend comprising: (A) about 60% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 40% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 9
Dependent Claim
14 words
An epoxysilicone composition as in claim 5, wherein said epoxy-functional M group is ##STR7##
Claim 10
Dependent Claim
123 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids curable in the presence of an efficacious amount of photocatalyst and ultraviolet radiation, said blend comprising: (A) from about 80 to about 20% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 20 to about 80% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 11
Dependent Claim
123 words
An ultraviolet radiation-curable epoxysilicone composition comprising a blend of epoxy-functional silicone resins and epoxy-stopped silicone fluids curable in the presence of an efficacious amount of photocatalyst and ultraviolet radiation, said blend comprising: (A) from about 80 to about 20% by weight epoxy-functional silicone resin, said resin containing Q groups, epoxy-functional M groups and at least one member selected from D groups and T groups, wherein said resin comprises at least 5 parts of the sum of M groups and epoxy-functional M groups per 10 parts of the sum of Q groups, D groups and T groups; (B) about 20 to about 80% by weight epoxy-stopped silicone fluids containing epoxy-functional M groups; and said blend having an epoxy equivalent weight of greater than 1000.
Claim 12
Dependent Claim
14 words
An epoxysilicone composition as in claim 7, wherein said epoxy-functional M group is ##STR8##
Claim 13
Dependent Claim
16 words
An epoxysilicone as in claim 7, wherein the photocatalyst is selected from iodonium and sulfonium salts.
Claim 14
Dependent Claim
55 words
An epoxysilicone as in claim 9, wherein the epoxy functional silica resin has the formula M.sup.E M.sub.8 D.sub.3 T.sub.2 Q.sub.5 wherein M E comprises: ##STR9## M comprises: (CH 3 ) 3 SiO 178 -- D comprises: (CH 3 ) 2 SiO-- T comprises: (CH 3 ) SiO 3/2 -- and Q comprises: SiO 4/2 --.
Claim 15
Dependent Claim
12 words
An epoxysilicone composition as in claim 7, wherein (B) has an EEW<8000.
Claim 16
Dependent Claim
19 words
An epoxysilicone composition as in claim 7, wherein (B) has an EEW ranging from about 500 to about 2500.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |