Patent US4923927A successfully refreshed from Google Patents.
US4923927A
Expired / Lapsed
US
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Curable composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1988-12-01
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Granted: 1990-05-08
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Expires: 2008-12-01
Abstract
Abstract A curable composition comprises 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to silicon atom and which is crosslinkable by forming a siloxane linkage and from 0.1 to less than 10 parts by weight of a liquid diene polymer.
Inventors
- 👤 Toshifumi Hirose
- 👤 Katsuhiko Isayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:21
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
63 words
A composition curable to a substantially tack-free condition comprising; 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
Claim 2
Dependent Claim
63 words
A composition curable to a substantially tack-free condition comprising; 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
Claim 3
Dependent Claim
39 words
The composition of claim 1 wherein the oxyalkylene polymer has a main chain consisting essentially of a recurring unit represented by the formula: --R.sup.1 --O-- where R 1 is a divalent hydrocarbon group having 1 to 8 carbon atoms.
Claim 4
Dependent Claim
120 words
The composition of claim 1 wherein the silicon-containing group is represented by the general formula (I) ##STR11## wherein R 2 is a substituted or unsubstituted monovalent organic group having 1 to 20 carbon atoms, and in case two or more R 2 groups are present, they may be the same or different; X is a hydroxyl or hydrolyzable group, and in case two or more X groups are present, they may be the same or different; a is 0, 1 or 2; b is 0, 1, 2 or 3, with the proviso that>1 and that a is the same or different in each unit of the formula ##STR12## and m is 0 or an integer of 1 to 19 inclusive.
Claim 5
Dependent Claim
65 words
A composition of claim 3 wherein X is selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkoxy group, an acyloxy group, a ketoximate group, an amino group, an amido group, an aminooxy group, a mercapto group and an alkenyloxy group; and wherein, when two or more X groups are present, they may be the same or different.
Claim 6
Dependent Claim
16 words
The composition of claim 3 wherein X of the general formula (I) is an alkoxy group.
Claim 7
Dependent Claim
16 words
The composition of claim 3 wherein X in the general formula (I) is a methoxy group.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein the liquid diene polymer is a liquid polybutadiene.
Claim 9
Dependent Claim
13 words
The composition of claim 7 wherein the liquid polybutadiene is a liquid 1,2-polybutadiene.
Claim 10
Dependent Claim
64 words
A composition curable sealant to a substantially tack-free condition comprising; 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
Claim 11
Dependent Claim
64 words
A composition curable sealant to a substantially tack-free condition comprising; 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
Claim 12
Dependent Claim
67 words
A substantially tack-free sealant comprising the product of moisture curing a composition comprising 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
Claim 13
Dependent Claim
67 words
A substantially tack-free sealant comprising the product of moisture curing a composition comprising 100 parts by weight of an oxyalkylene polymer having at least one silicon-containing group which has a hydroxyl or hydrolyzable group attached to a silicon atom and which is crosslinkable by forming a siloxane linkage, and a tack reducing amount, from 0.1 to less than 10 parts by weight, of a liquid diene polymer.
References Cited (Backward Citations)
EP0173303A2
Cited
US4665127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-07 | 1993-11-06 | 1994-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-07 | 1997-11-06 | 1998-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-07 | 2001-11-06 | 2002-05-08 | $7700.00 | Window Closed / Lapsed |