Patent US5208289A successfully refreshed from Google Patents.
US5208289A
Expired / Lapsed
US
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Curing resin composition and its cured product
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1991-03-27
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Granted: 1993-05-04
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Expires: 2011-03-27
Abstract
Abstract This invention discloses a curing resin composition comprising (a) an organic resin containing no less than 2 alkenyl groups per molecule, and having a number average molecular weight of 500-100,000. (b) an organohydrogen-polysiloxane containing no less than 2 Si--H bonds per molecule, and (c) a platinum catalyst. It is desired that the organic resin of component (a) is at least one type chosen from acrylic, polyester and epoxy. The preferable amount of component (b) is such that there are 0.8-4 hydrogen atoms bonded to silicon atoms per alkenyl group of component (a).
Inventors
- 👤 Mitsuhiro Takarada
- 👤 Yuji Yoshikawa
- 👤 Kenji Yamamoto
- 👤 Hiroharu Ohsugi
- 👤 Atsushi Ohgaki
- 👤 Ryozo Takagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:56
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; C08K5/5419; C08L101/00; C08L101/02; C09; C09D; C09D201/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
128 words
A curing resin composition comprising (a) an acrylic resin containing no less than two alkenyl groups per molecule and having a number average molecular weight of 500-100,000, (b) an organohydrogenpolysiloxane containing no less than two Si-H bonds per molecule, and (c) a platinum catalyst, wherein the acrylic resin containing alkenyl groups of component (a) is a copolymerization product of an acrylic monomer containing alkenyl groups and another polymerizable monomer, an addition reaction product of an acrylic resin containing hydroxyl groups and an alkenyl isocyanate compound and/or carboxylic acid anhydride containing alkenyl groups, an addition reaction product of an acrylic resin containing carboxyl groups and an epoxy compound containing alkenyl groups, or an addition reaction product of an acrylic resin containing epoxy groups and carboxylic acids containing alkenyl groups.
Claim 2
Dependent Claim
128 words
A curing resin composition comprising (a) an acrylic resin containing no less than two alkenyl groups per molecule and having a number average molecular weight of 500-100,000, (b) an organohydrogenpolysiloxane containing no less than two Si-H bonds per molecule, and (c) a platinum catalyst, wherein the acrylic resin containing alkenyl groups of component (a) is a copolymerization product of an acrylic monomer containing alkenyl groups and another polymerizable monomer, an addition reaction product of an acrylic resin containing hydroxyl groups and an alkenyl isocyanate compound and/or carboxylic acid anhydride containing alkenyl groups, an addition reaction product of an acrylic resin containing carboxyl groups and an epoxy compound containing alkenyl groups, or an addition reaction product of an acrylic resin containing epoxy groups and carboxylic acids containing alkenyl groups.
Claim 3
Dependent Claim
27 words
A curing resin composition as in claim 1 wherein the other polymerizable monomer which copolymerizes with the acrylic monomer containing alkenyl groups is an α, β-unsaturated monomer.
Claim 4
Dependent Claim
24 words
A curing resin composition as in claim 2 wherein no less than 50 wt % of the α, β-unsaturated monomer is an acrylic monomer.
Claim 5
Dependent Claim
31 words
A curing resin composition as in claim 1 wherein the acrylic resin containing hydroxyl groups is the copolymerization product of an acrylic monomer containing hydroxyl groups and an α, β-unsaturated monomer.
Claim 6
Dependent Claim
27 words
A curing resin composition as in claim 4 wherein no less than 50 wt % of the α, β-unsaturated monomer is an acrylic monomer without hydroxyl groups.
Claim 7
Dependent Claim
31 words
A curing resin composition as in claim 1 wherein the acrylic resin containing isocyanate groups is the copolymerization product of an acrylic monomer containing isocyanate groups and an α, β-unsaturated monomer.
Claim 8
Dependent Claim
27 words
A curing resin composition as in claim 6 wherein no less than 50 wt % of the α, β-unsaturated monomer is an acrylic monomer without isocyanate groups.
Claim 9
Dependent Claim
41 words
A curing resin composition as in claim 1 wherein the acrylic resin containing carboxyl groups is the copolymerization product of an acrylic monomer containing carboxyl groups and an α, β-unsaturated monomer, or the homopolymer of an acrylic monomer containing carboxyl groups.
Claim 10
Dependent Claim
27 words
A curing resin composition as in claim 8 wherein no less than 50 wt % of the α, β-unsaturated monomer is an acrylic monomer without carboxyl groups.
Claim 11
Dependent Claim
41 words
A curing resin composition as in claim 1 wherein the acrylic resin containing epoxy groups is the copolymerization product of an acrylic monomer containing epoxy groups and an α, β-unsaturated monomer, or the homopolymer of an acrylic monomer containing epoxy groups.
Claim 12
Dependent Claim
27 words
A curing resin composition as in claim 10 wherein no less than 50 wt % of the α, β-unsaturated monomer is an acrylic monomer without epoxy groups.
Claim 13
Dependent Claim
26 words
A curing resin composition as in claim 1 wherein the number average molecular weight of the acrylic resin, of component (a) lies in the range 2,000-50,000.
Claim 14
Dependent Claim
52 words
A curing resin composition as in claim 1 wherein the organohydrogenpolysiloxane of component (b) is represented by the formula: ##STR12## where R 1 and R 2 are alkyl groups with 1-6 carbon atoms or phenyl, a is an integer in the range 0≦a≦100, and b is an integer in the range 2≦b≦100.
Claim 15
Dependent Claim
53 words
A curing resin composition as in claim 1 wherein the organohydrogenpolysiloxane of component (b) is represented by the formula: ##STR13## where R 2 and R 3 are alkyl groups with 1-6 carbon atoms or phenyl, c is an integer in the range 0≦c≦8, d is an integer in the range 2≦d≦10, and 3≦c+d≦10.
Claim 16
Dependent Claim
51 words
A curing resin composition as in claim 3 wherein the organohydrogenpolysiloxane of component (b) is represented by the formula: ##STR14## wherein R 1 and R 2 are C 1-6 -alkyl or phenyl, e is an integer in the range of 2≦e≦100, and f is an integer in the range of 0≦f≦100.
Claim 17
Dependent Claim
33 words
A curing resin composition as in claim 1 wherein the amount of component (b) added is such that there are 0.8-4 hydrogen atoms bonded to silicon atoms per alkenyl group of component (a).
Claim 18
Dependent Claim
33 words
A curing resin composition as in claim 1 wherein the amount of catalyst added is 5-1,000 ppm with respect to 100 parts by weight of a mixture of component (a) and component (b).
Claim 19
Dependent Claim
11 words
A cured product obtained by curing the composition of claim 1.
Claim 20
Dependent Claim
22 words
A resin according to claim 1, wherein the alkenyl groups in component (a) are vinyl, allyl, methylvinyl, dimethylvinyl, cyclohexenyl, or butenyl groups.
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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) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |