Patent US4977228A successfully refreshed from Google Patents.
US4977228A
Expired / Lapsed
US
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Curable polymer composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1989-03-17
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Granted: 1990-12-11
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Expires: 2009-03-17
Abstract
Abstract A curable polymer composition comprising (A) an alkyl (meth)acrylate base polymer having a silicon-containing reactive group, (B) an oxyalkylene base polymer having a silicon-containing reactive group, (C) a silicon-containing compound having three or four hydrolyzable groups bonded to the silicon atom, (D) a silicon-containing compound having two hydrolyzable groups bonded to the silicon atom and (E) a curing accelerator wherein the compounds (C), (D) and (E) are contained in amounts of 0.01 to 30 parts by weight, 0.1 to 30 parts by weight and 0.01 to 10 parts by weight per 100 parts by weight of the total amount of the polymers (A) and (B), which composition has improved storage stability while a cured material therefrom has good mechanical properties, particularly elongation.
Inventors
- 👤 Hiroshi Wakabayashi
- 👤 Hisami Iwakiri
- 👤 Kazuhiko Tamai
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:09
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08K; C08K5/00; C08K5/54; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
148 words
A curable polymer composition comprising: (A) an alkyl (meth)acrylate base polymer having at least one silicon atom bonded to a hydroxy group or a hydrolyzable group and which is cross linkable through formation of a siloxane bond, (B) an oxyalkylene base polymer having at least one silicon atom bonded to a hydroxy group or a hydrolyzable group and which is cross linkable through formation of a siloxane bond, (C) a silicon-containing compound having three or four hydrolyzable groups bonded to the silicon atom, (D) a silicon-containing compound having two hydrolyzable groups bonded to the silicon atom, and (E) a curing accelerator wherein the components (C), (D) and (E) are contained in amounts of 0.01 to 30 parts by weight, 0.1 to 30 parts by weight and 0.01 to 10 parts by weight, respectively, per 100 parts by weight of the total amount of the polymers (A) and (B).
Claim 2
Dependent Claim
148 words
A curable polymer composition comprising: (A) an alkyl (meth)acrylate base polymer having at least one silicon atom bonded to a hydroxy group or a hydrolyzable group and which is cross linkable through formation of a siloxane bond, (B) an oxyalkylene base polymer having at least one silicon atom bonded to a hydroxy group or a hydrolyzable group and which is cross linkable through formation of a siloxane bond, (C) a silicon-containing compound having three or four hydrolyzable groups bonded to the silicon atom, (D) a silicon-containing compound having two hydrolyzable groups bonded to the silicon atom, and (E) a curing accelerator wherein the components (C), (D) and (E) are contained in amounts of 0.01 to 30 parts by weight, 0.1 to 30 parts by weight and 0.01 to 10 parts by weight, respectively, per 100 parts by weight of the total amount of the polymers (A) and (B).
Claim 3
Dependent Claim
57 words
The curable polymer composition according to claim 1, wherein the alkyl (meth)acrylate base polymer (A) comprises a molecular chain essentially consisting of (1) repeating units derived from alkyl (meth)acrylate having 1 to 8 carbon atoms in the alkyl group and (2) repeating units derived from alkyl (meth)acrylate having at least 10 carbon atoms in the alkyl group.
Claim 4
Dependent Claim
25 words
The curable polymer composition according to claim 1, wherein the alkyl (meth)acrylate base polymer (A) has a number average molecular weight of 500 to 100,000.
Claim 5
Dependent Claim
26 words
The curable polymer composition according to claim 1, wherein the alkyl (meth)acrylate base polymer (A) has, on the average, 1.5 to 20 of said silicon atoms.
Claim 6
Dependent Claim
41 words
The curable polymer composition according to claim 1, wherein the oxyalkylene base polymer (B) comprises a molecular chain essentially consisting of repeating units of the formula: --R.sup.7 --O-- wherein R 7 is an alkylene group having 1 to 8 carbon atoms.
Claim 7
Dependent Claim
22 words
The curable polymer composition according to claim 1, wherein the oxyalkylene base polymer has an average molecular weight of 500 to 30,000.
Claim 8
Dependent Claim
24 words
The curable polymer composition according to claim 1, wherein the oxyalkylene base polymer has, on the average, 1.5 to 4 of said silicon atoms.
Claim 9
Dependent Claim
48 words
The curable polymer composition according to claim 1, wherein the silicon-containing compound (C) is a compound of the formula R.sup.11.sub.4-n SiX.sub.n wherein R 11 is a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms, X is a hydrolyzable group and n is 3 or 4.
Claim 10
Dependent Claim
43 words
The curable polymer composition according to claim 1, wherein the silicon-containing compound (D) is a compound of the formula: R.sup.11.sub.2 SiX.sub.2 wherein R 11 is a substituted or unsubstituted hydrocarbon group having 1 to 20 carbon atoms and X is a hydrolyzable group.
References Cited (Backward Citations)
US4593068A
Cited
EP0300146A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |