US6576733B1
Expired / Lapsed
US
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Curable oxypropylene polymer composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1997-03-20
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Granted: 2003-06-10
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Expires: 2017-03-20
Abstract
Abstract This invention provides a curable composition capable of giving cured products drastically improved in resilience. This composition includes (A) an oxypropylene polymer having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group bound to the silicon atom and having an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, (B) an organic carboxylic acid salt of divalent tin and (C) an organic amine compound.
Inventors
- 👤 Masayuki Fujita
- 👤 Michihide Homma
- 👤 Hiroshi Wakabayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:02
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/336; C08K; C08K5/00; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
A curable composition comprising: (A) an oxypropylene polymer containing, in its main polymer chain, a repeating unit of the formula having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group bound to the silicon atom and an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, (B) an organic carboxylic acid salt of divalent tin, and (C) an organic amine compound.
Claim 2
Dependent Claim
75 words
A curable composition comprising: (A) an oxypropylene polymer containing, in its main polymer chain, a repeating unit of the formula having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group bound to the silicon atom and an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, (B) an organic carboxylic acid salt of divalent tin, and (C) an organic amine compound.
Claim 3
Dependent Claim
23 words
A curable composition as claimed in claim 1 , wherein the component (A) polymer has an Mw/Mn ratio of not more than 1.5.
Claim 4
Dependent Claim
24 words
A curable composition as claimed in claim 1 , wherein the component (A) polymer has a number average molecular weight of 6,000 to 30,000.
Claim 5
Dependent Claim
22 words
A curable composition as claimed in claim 1 , wherein the silicon atom-containing group occurs at a terminal of the molecular chain.
Claim 6
Dependent Claim
24 words
A curable composition as claimed in claim 2 , wherein the component (A) polymer has a number average molecular weight of 6,000 to 30,000.
Claim 7
Dependent Claim
22 words
A curable composition as claimed in claim 2 , wherein the silicon atom-containing group occurs at a terminal of the molecular chain.
Claim 8
Dependent Claim
22 words
A curable composition as claimed in claim 3 , wherein the silicon atom-containing group occurs at a terminal of the molecular chain.
Claim 9
Dependent Claim
25 words
A curable composition as claimed in claim 1 , further comprising: (D) an epoxy plasticizer or a mixture of an epoxy plasticizer with another plasticizer.
Claim 10
Dependent Claim
23 words
A curable composition as claimed in claim 1 , wherein the component (A) polymer has an Mw/Mn ratio of not more than 1.4.
Claim 11
Dependent Claim
72 words
A curable composition comprising: (A) an oxypropylene polymer containing, in its main polymer chain, a repeating unit of the formula having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group bound to the silicon atom and an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, (B) an organic carboxylic acid salt of divalent tin, and (C) laurylamine.
Claim 12
Dependent Claim
72 words
A curable composition comprising: (A) an oxypropylene polymer containing, in its main polymer chain, a repeating unit of the formula having at least one silicon atom-containing group with a hydroxyl group or a hydrolyzable group bound to the silicon atom and an Mw/Mn ratio of not more than 1.6 and a number average molecular weight of not less than 6,000, (B) an organic carboxylic acid salt of divalent tin, and (C) laurylamine.
Claim 13
Dependent Claim
24 words
A curable composition as claimed in claim 10 , wherein the component (B) organic carboxylic acid salt of divalent tin is tin (II) octanoate.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2006-06-09 | 2006-12-09 | 2007-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-09 | 2010-12-09 | 2011-06-10 | $3760.00 | Window Closed / Lapsed |
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