US6437071B1
Expired / Lapsed
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Silane-functionalized polyether composition
Assignee: Kaneka Corp
•
Filing: 2000-03-20
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Granted: 2002-08-20
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Expires: 2020-03-20
Abstract
Abstract The present invention has its object to provide a curable composition giving cured products improved in residual tack (reduced in stickiness), with the physical properties insuring those tensile characteristics and rubber elasticity required of sealing compositions for general architectural use being retained. The present invention provides a curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether oligomer with the percentage of the number of reactive silicon groups to the number of molecular chain terminals as determined by 1H-NMR analysis being not less than 85% and (II) 1 to 500 parts by weight of a plasticizer.
Inventors
- 👤 Hidetoshi Odaka
- 👤 Yuka Kanamori
- 👤 Hiroshi Ito
- 👤 Hideharu Jyono
- 👤 Hiroshi Iwakiri
- 👤 Fumio Kawakubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:02
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/336; C08L; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
52 words
A curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether polymer in which not less than 90% of the number of molecular chain terminals have the reactive silicon groups as determined by 1 H-NMR analysis and (II) 210 to 420 parts by weight of a plasticizer.
Claim 2
Dependent Claim
52 words
A curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether polymer in which not less than 90% of the number of molecular chain terminals have the reactive silicon groups as determined by 1 H-NMR analysis and (II) 210 to 420 parts by weight of a plasticizer.
Claim 3
Dependent Claim
22 words
The curable composition according to claim 1 , wherein the cured product has a modulus at 50% elongation of 0.05 MPa≦M50≦0.30 MPa.
Claim 4
Dependent Claim
26 words
The curable composition according to claim 1 wherein the reactive silicon group occurs at a molecular chain terminal of the reactive silicon group-containing polyether polymer (I).
Claim 5
Dependent Claim
206 words
The curable composition according to claim 1 , wherein the reactive silicon group is represented by the general formula (1): —(Si(R 1 2−b )(X b )O) m Si(R 2 3−a )X a (1) wherein R 1 and R 2 are the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, an aryl group containing 6 to 20 carbon atoms, an aralkyl group containing 7 to 20 carbon atoms or a triorganosiloxy group of the formula (R′) 3 SiO—, in which the three R′ groups are the same or different and each is a monovalent hydrocarbon group containing 1 to 20 carbon atoms and, when there are two or more R 1 or R 2 groups, they may be the same or different; X represents a hydroxyl group or a hydrolyzable group and, when there are two or more X groups, they may be the same or different; a represents 0, 1, 2 or 3, b represents 0, 1 or 2 and —Si(R 1 2−b )(X b )—O— may be the same or different from each other when m is 2 or more; m represents an integer of 0 to 19; with the condition that the relation of a+Σb≧1 is satisfied.
Claim 6
Dependent Claim
40 words
The curable composition according to claim 1 , wherein said reactive silyl-containing polyether polymer (I) is derived from a polyether polymer obtainable by ring opening addition polymerization of an alkylene oxide in the presence of double metal cyanide complex catalyst.
Claim 7
Dependent Claim
25 words
The curable composition according to claim 1 , wherein the main chain of said reactive silyl-containing polyether polymer (I) is formed mainly from propylene oxide.
Claim 8
Dependent Claim
182 words
The curable composition according to claim 1 , wherein the reactive silicon group-containing polyether polymer (I) is obtainable by reacting (a) a polyether polymer with (b) a reactive silicon group-containing compound in the presence of (c) a group VIII transition metal catalyst, said polyether polymer comprising a polyether as its main chain and, on a side chain or at a terminal, at least one unsaturated group represented by the general formula (2): H 2 C═C(R 3 )—R 4 —O— (2) wherein R 3 is a hydrocarbon group containing not more than 10 carbon atoms and R 4 is a divalent organic group containing 1 to 20 carbon atoms and one or more constituent atoms selected from the group consisting of hydrogen, oxygen and nitrogen atoms, or by the general formula (3): HC(R 3 )═CH—R 4 —O— (3) wherein R 3 is a hydrocarbon group containing not more than 10 carbon atoms and R 4 is a divalent organic group containing 1 to 20 carbon atoms and one or more constituent atoms selected from the group consisting of hydrogen, oxygen and nitrogen atoms.
Claim 9
Dependent Claim
32 words
The curable composition according to claim 7 , wherein the group VIII transition metal catalyst (c) comprises at least one member selected from the group consisting of platinum-vinylsiloxane complexes and platinum-olefin complexes.
Claim 10
Dependent Claim
26 words
The curable composition according to claim 7 , wherein, in general formulas (2) and (3), R 3 is CH 3 or CH 2 CH 3 .
Claim 11
Dependent Claim
31 words
The curable composition according to claim 9 , wherein the unsaturated group of general formula (2) is represented by the general formula (4): H 2 C═C(CH 3 )—CH 2 —O— (4).
Claim 12
Dependent Claim
29 words
The curable composition according to claim 9 , wherein the unsaturated group of general formula (3) is represented by the general formula (5): (CH 3 )CH═CH—CH 2 —O— (5).
Claim 13
Dependent Claim
20 words
The curable composition according to claim 1 , wherein the plasticizer (II) comprises a high-molecular plasticizer and/or a high-viscosity plasticizer.
Claim 14
Dependent Claim
27 words
The curable composition according to claim 2 , wherein the reactive silicon group occurs at a molecular chain terminal of the reactive silicon group-containing polyether polymer (I).
Claim 15
Dependent Claim
206 words
The curable composition according to claim 2 , wherein the reactive silicon group is represented by the general formula (1): —(Si(R 1 2−b )(X b )O) m Si(R 2 3−a )X a (1) wherein R 1 and R 2 are the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, an aryl group containing 6 to 20 carbon atoms, an aralkyl group containing 7 to 20 carbon atoms or a triorganosiloxy group of the formula (R′) 3 SiO—, in which the three R′ groups are the same or different and each is a monovalent hydrocarbon group containing 1 to 20 carbon atoms and, when there are two or more R 1 or R 2 groups, they may be the same or different; X represents a hydroxyl group or a hydrolyzable group and, when there are two or more X groups, they may be the same or different; a represents 0, 1, 2 or 3, b represents 0, 1 or 2 and —Si(R 1 2−b )(X b )—O— may be the same or different from each other when m is 2 or more; m represents an integer of 0 to 19; with the condition that the relation of a+Σb≧1 is satisfied.
Claim 16
Dependent Claim
206 words
The curable composition according to claim 3 , wherein the reactive silicon group is represented by the general formula (1): —(Si(R 1 2−b )(X b )O) m Si(R 2 3−a )X a (1) wherein R 1 and R 2 are the same or different and each represents an alkyl group containing 1 to 20 carbon atoms, an aryl group containing 6 to 20 carbon atoms, an aralkyl group containing 7 to 20 carbon atoms or a triorganosiloxy group of the formula (R′) 3 SiO—, in which the three R′ groups are the same or different and each is a monovalent hydrocarbon group containing 1 to 20 carbon atoms and, when there are two or more R 1 or R 2 groups, they may be the same or different; X represents a hydroxyl group or a hydrolyzable group and, when there are two or more X groups, they may be the same or different; a represents 0, 1, 2 or 3, b represents 0, 1 or 2 and —Si(R 1 2−b )(X b )—O— may be the same or different from each other when m is 2 or more; m represents an integer of 0 to 19; with the condition that the relation of a+Σb≧1 is satisfied.
Claim 17
Dependent Claim
40 words
The curable composition according to claim 2 , wherein said reactive silyl-containing polyether polymer (I) is derived from a polyether polymer obtainable by ring opening addition polymerization of an alkylene oxide in the presence of double metal cyanide complex catalyst.
Claim 18
Dependent Claim
40 words
The curable composition according to claim 3 , wherein said reactive silyl-containing polyether polymer (I) is derived from a polyether polymer obtainable by ring opening addition polymerization of an alkylene oxide in the presence of double metal cyanide complex catalyst.
Claim 19
Dependent Claim
40 words
The curable composition according to claim 4 , wherein said reactive silyl-containing polyether polymer (I) is derived from a polyether polymer obtainable by ring opening addition polymerization of an alkylene oxide in the presence of double metal cyanide complex catalyst.
Claim 20
Dependent Claim
25 words
The curable composition according to claim 2 , wherein the main chain of said reactive silyl-containing polyether polymer (I) is formed mainly from propylene oxide.
Claim 21
Dependent Claim
25 words
The curable composition according to claim 3 , wherein the main chain of said reactive silyl-containing polyether polymer (I) is formed mainly from proplyene oxide.
Claim 22
Dependent Claim
35 words
The curable composition according to claim 1 , wherein the polymer (I) has the reactive silicon groups at not less than 95% of the number of molecular chain terminals as determined by 1 H-NMR analysis.
Claim 23
Dependent Claim
16 words
The curable composition according to claim 1 , wherein the plasticizer (II) is a high-molecular plasticizer.
Claim 24
Dependent Claim
43 words
The curable composition according to claim 1 , wherein the polymer (I) has the reactive silicon groups at not less than 95% of the number of molecular chain terminals as determined by 1 H-NMR analysis, and the plasticizer (II) is a high-molecular plasticizer.
Claim 25
Dependent Claim
35 words
The curable composition according to claim 1 , wherein the polymer (I) has the reactive silicon groups at not less than 98% of the number of molecular chain terminals as determined by 1 H-NMR analysis.
Claim 26
Dependent Claim
43 words
The curable composition according to claim 1 , wherein the polymer (I) has the reactive silicon groups at not less than 98% of the number of molecular chain terminals as determined by 1 H-NMR analysis, and the plasticizer (II) is a high-molecular plasticizer.
Claim 27
Dependent Claim
167 words
A curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether polymer in which not less than 90% of the number of molecular chain terminals have the reactive silicon groups as determined by 1 H NMR analysis and (II) 1 to 500 parts by weight of a plasticizer, wherein the reactive silicon group-containing polyether polymer (I) is obtainable by reacting (a) a polyether polymer with (b) a reactive silicon group-containing compound in the presence of (c) a group VIII transition metal catalyst, said polyether polymer comprising a polyether at its main chain and, on a side chain or at a terminal, at least one unsaturated group represented by the formula (3): (R 3 )CH═CH—R 4 —O— (3) wherein R 3 is a hydrocarbon group containing not more than 10 carbon atoms and R 4 is a divalent organic group containing 1 to 20 carbon atoms and one or more constituent atoms selected from the group consisting of hydrogen, oxygen, and nitrogen atoms.
Claim 28
Dependent Claim
167 words
A curable composition which comprises (I) 100 parts by weight of a reactive silicon group-containing polyether polymer in which not less than 90% of the number of molecular chain terminals have the reactive silicon groups as determined by 1 H NMR analysis and (II) 1 to 500 parts by weight of a plasticizer, wherein the reactive silicon group-containing polyether polymer (I) is obtainable by reacting (a) a polyether polymer with (b) a reactive silicon group-containing compound in the presence of (c) a group VIII transition metal catalyst, said polyether polymer comprising a polyether at its main chain and, on a side chain or at a terminal, at least one unsaturated group represented by the formula (3): (R 3 )CH═CH—R 4 —O— (3) wherein R 3 is a hydrocarbon group containing not more than 10 carbon atoms and R 4 is a divalent organic group containing 1 to 20 carbon atoms and one or more constituent atoms selected from the group consisting of hydrogen, oxygen, and nitrogen atoms.
Claim 29
Dependent Claim
23 words
The curable composition according to claim 26 wherein in general formula (3), R 3 is CH 3 or CH 2 CH 3 .
Claim 30
Dependent Claim
30 words
The curable composition according to claim 26 wherein the at least one unsaturated group of general formula (3) is represented by the formula (5): (CH 3 )CH═CH—CH 2 —O (5).
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