US6608144B1
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Ethylene α-olefin/unconjugated polyene random copolymer rubber containing hydrolyzable silyl group and process for producing the same
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 2000-07-19
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Granted: 2003-08-19
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Expires: 2020-07-19
Abstract
Abstract The invention provides an ethylene-alpha-olefin-unconjugated polyene random copolymer rubber having hydrolyzable silyl groups in the molecule, which is crosslinkable with air-borne moisture at room temperature and is not only useful for resin modification, but also applicable as elastic sealants and adhesives, and a method for preparing the same.
Inventors
- 👤 Tsutomu Nakamura
- 👤 Takeo Yoshida
- 👤 Akira Yamamoto
- 👤 Takashi Hakuta
- 👤 Yoshiharu Kikuchi
- 👤 Masaaki Kawasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:27
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C08F210/18; C08F8/00; C08F8/42; C08F8/44; C08L; C08L23/00; C08L23/02; C08L23/16
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
An ethylene-α-olefin-unconjugated polyene random copolymer rubber characterized by containing in a molecule hydrolyzable silyl groups represented by the following general formula (1): wherein R is a monovalent hydrocarbon group of 1 to 12 carbon atoms, X is a hydrolyzable group selected from the group consisting of hydride, halogen, alkoxy, acyloxy, ketoxymate, amide, acid amide, and aminoxy groups, and the letter “a” is an integer of 0, 1 or 2, and obtained by subjecting an ethylene-α-olefin-unconjugated polyene random copolymer rubber to hydrosilylation reaction in the presence of a catalyst in the form of a transition metal complex with a silicon compound of the following general formula (2): H—SiR a X 3−a (2) wherein R, X and Letter “a” are as defined above, thereby adding the SiH group of said silicon compound to a double bond in said copolymer.
Claim 2
Dependent Claim
137 words
An ethylene-α-olefin-unconjugated polyene random copolymer rubber characterized by containing in a molecule hydrolyzable silyl groups represented by the following general formula (1): wherein R is a monovalent hydrocarbon group of 1 to 12 carbon atoms, X is a hydrolyzable group selected from the group consisting of hydride, halogen, alkoxy, acyloxy, ketoxymate, amide, acid amide, and aminoxy groups, and the letter “a” is an integer of 0, 1 or 2, and obtained by subjecting an ethylene-α-olefin-unconjugated polyene random copolymer rubber to hydrosilylation reaction in the presence of a catalyst in the form of a transition metal complex with a silicon compound of the following general formula (2): H—SiR a X 3−a (2) wherein R, X and Letter “a” are as defined above, thereby adding the SiH group of said silicon compound to a double bond in said copolymer.
Claim 3
Dependent Claim
11 words
The copolymer rubber of claim 1 having fluidity at room temperature.
Claim 4
Dependent Claim
176 words
A method for preparing the ethylene-α-olefin-unconjugated polyene random copolymer rubber of claim 1 or 2, characterized by subjecting an ethylene-α-olefin-unconjugated unconjugated polyene random copolymer rubber in which the unconjugated polyene is at least one terminal vinyl group-containing norbornene compound of the following general formula (I) or (II): wherein n is an integer of 0 to 10, R 1 is hydrogen or an alkyl group of 1 to 10 carbon atoms, and R 2 is hydrogen or an alkyl group of 1 to 5 carbon atoms, wherein R 3 is hydrogen or an alkyl group of 1 to 10 carbon atoms, to hydrosilylation reaction with a silicon compound of the following general formula (2): wherein R is a monovalent hydrocarbon group of 1 to 12 carbon atoms, X is a hydrolyzable group selected from the group consisting of hydride, halogen, alkoxy, acyloxy, ketoxymate, amide, acid amide, and aminoxy groups, and the letter “a” is an integer of 0, 1 or 2, thereby adding the SiH group of said silicon compound to a double bond in said copolymer.
Claim 5
Dependent Claim
87 words
The copolymer rubber of claim 1 wherein the unconjugated polyene of the ethylene-α-olefin-unconjugated polyene random copolymer rubber is at least one terminal vinyl group-containing norbornene compound of the following general formula (I) or (II): wherein n is an integer of 0 to 10, R 1 is hydrogen or an alkyl group of 1 to 10 carbon atoms, and R 2 is hydrogen or an alkyl group of 1 to 5 carbon atoms, wherein R 3 is hydrogen or an alkyl group of 1 to 10 carbon atoms.
Claim 6
Dependent Claim
11 words
The copolymer rubber of claim 4 having fluidity at room temperature.
Claim 7
Dependent Claim
25 words
The method of claim 3 wherein the hydrosilylation reaction is conducted in the presence of a catalyst in the form of a transition metal complex.
Claim 8
Dependent Claim
11 words
The method of claim 3 wherein the unconjugated polyene is 5-vinyl-2-norbornene.
Claim 9
Dependent Claim
12 words
The copolymer rubber of claim 4 wherein the unconjugated polyene is 5-vinyl-2-norbornene.
Claim 10
Dependent Claim
34 words
The ethylene-α-olefin-unconjugated polyene random copolymer rubber of claim 1 wherein the silicon compound of the following general formula (2): H—SiR a X 3−a (2) is present in an amount of 0.01 to 5 moles.
Claim 11
Dependent Claim
34 words
The ethylene-α-olefin-unconjugated polyene random copolymer rubber of claim 1 wherein the silicon compound of the following general formula (2): H-SiR a X 3−a (2) is present in an amount of 0.05 to 3 moles.
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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) | 2006-08-18 | 2007-02-17 | 2007-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-08-18 | 2011-02-17 | 2011-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-08-18 | 2015-02-17 | 2015-08-19 | $7700.00 | Window Closed / Lapsed |