US4504629A
Expired / Lapsed
US
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Polymers with graft α-alkylacrylate functionality
Assignee: Henkel Loctite Corp
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Filing: 1983-07-20
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Granted: 1985-03-12
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Expires: 2003-07-20
Abstract
Abstract Polymers having α-alkylacrylate functionality may be prepared by hydrosilating an aliphatically unsaturated polymer with a grafting agent of structure (A) or (B): ##STR1## where R 1 is an alkyl group; R 2 is a divalent group nonreactive under hydrosilation conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R 3 groups are the same or different alkyl, substituted alkyl, aryl, substituted aryl or ##STR2## groups. Preferred olefinically unsaturated polymers include homopolymers and copolymers of butadiene or alkyl substituted butadiene and polyorganosiloxanes with unsaturated hydrocarbyl groups such as vinyl or allyl.
Inventors
- 👤 Samuel Q. S. Lien
- 👤 Steven T. Nakos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:13
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/285; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0896; C07F7/18; C07F7/1804; C08; C08C; C08C19/00; C08C19/25; C08F; C08F290/00; C08F290/08; C08F290/12; C08F290/128; C08F299/00; C08G; C08G77/00; C08G77/04; C08G77/20; C08G77/48; C08G77/50; C08L; C08L83/00; C08L83/04; C08L83/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
132 words
A method of adding α-alkylacrylate functionality to an aliphatically unsaturated polymer, the method comprising reacting at temperatures between about 0° C. and about 100° C. a grafting agent consisting essentially of a compound selected from (A), (B) and mixtures thereof with said aliphatically unsaturated polymer in the presence of a hydrosilation catalyst selected from platinum-based catalysts and rhodium complex catalysts, said grafting agent compounds (A) and (B) having the respective structures: ##STR8## where R 1 is an alkyl group; R 2 is a divalent group nonreactive under hydrosilation conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R 3 groups are the same or different alkyl, substituted alkyl, aryl, substituted aryl or ##STR9## groups.
Claim 2
Independent Claim
132 words
A method of adding α-alkylacrylate functionality to an aliphatically unsaturated polymer, the method comprising reacting at temperatures between about 0° C. and about 100° C. a grafting agent consisting essentially of a compound selected from (A), (B) and mixtures thereof with said aliphatically unsaturated polymer in the presence of a hydrosilation catalyst selected from platinum-based catalysts and rhodium complex catalysts, said grafting agent compounds (A) and (B) having the respective structures: ##STR8## where R 1 is an alkyl group; R 2 is a divalent group nonreactive under hydrosilation conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R 3 groups are the same or different alkyl, substituted alkyl, aryl, substituted aryl or ##STR9## groups.
Claim 3
Dependent Claim
12 words
A method as in claim 1 wherein said catalyst is chloroplatinic acid.
Claim 4
Dependent Claim
19 words
A method as in claim 1 wherein R 2 is alkyleneoxy, polyalkyleneoxy, alkylene, alkyleneoxyalkylene, arylene, alkylarylene, arylalkylene, or alkenylene.
Claim 5
Dependent Claim
14 words
A method as in claim 4 wherein R 2 is propylene, propyleneoxy or ethyleneoxypropylene.
Claim 6
Dependent Claim
21 words
A method as in claim 1 wherein said unsaturated polymer is selected from homopolymers and copolymers of butadiene or alkyl-substituted butadienes.
Claim 7
Dependent Claim
23 words
A method as in claim 5 wherein said unsaturated polymer is selected from block copolymers of styrene and butadiene or styrene and isoprene.
Claim 8
Dependent Claim
19 words
A method as in claim 1 wherein said unsaturated polymer is polyorganosiloxane having a plurality of unsaturated hydrocarbyl groups.
Claim 9
Dependent Claim
17 words
A method as in claim 7 wherein said polyorganosiloxane unsaturated hydrocarbyl groups are allyl or vinyl groups.
Claim 10
Dependent Claim
118 words
A polymer conprising the hydrosilation reaction product of an aliphatically unsaturated polymer and a grafting agent consisting essentially of a compound of structure (A), (B), or mixtures thereof: ##STR10## where R 1 is an alkyl group; R 2 is a divalent group nonreactive under hydrosilation reaction conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R 3 groups are the same or different alkyl, substituted alkyl, aryl, substitute aryl or ##STR11## groups, said hydrosilation reaction being conducted in the presence of a platinium-based or rhodium complex hydrosilation catalyst at a temperature of between about 0° C. and about 100° C.
Claim 11
Dependent Claim
118 words
A polymer conprising the hydrosilation reaction product of an aliphatically unsaturated polymer and a grafting agent consisting essentially of a compound of structure (A), (B), or mixtures thereof: ##STR10## where R 1 is an alkyl group; R 2 is a divalent group nonreactive under hydrosilation reaction conditions; n is 0, 1, 2, 3, or 4; x and y are 0, 1, 2, 3 or 4 and x+y=1, 2, 3 or 4; and, the R 3 groups are the same or different alkyl, substituted alkyl, aryl, substitute aryl or ##STR11## groups, said hydrosilation reaction being conducted in the presence of a platinium-based or rhodium complex hydrosilation catalyst at a temperature of between about 0° C. and about 100° C.
Claim 12
Dependent Claim
11 words
A polymer as in claim 9 wherein R 1 is methyl.
Claim 13
Dependent Claim
20 words
A polymer as in claim 9 wherein R 2 is alkyleneoxy, polyalkyleneoxy, alkylene, alkyleneoxyalkylene, arylene, alkylarylene or arylalkylene, or alkenylene.
Claim 14
Dependent Claim
14 words
A polymer as in claim 11 wherein R 2 is propylene, propyleneoxy or ethyleneoxypropylene.
Claim 15
Dependent Claim
21 words
A polymer as in claim 9 wherein said unsaturated polymer is selected from homopolymers and copolymers of butadiene or alkyl-substituted butadienes.
Claim 16
Dependent Claim
23 words
A polymer as in claim 13 wherein said unsaturated polymer is selected from block copolymers of styrene and butadiene or styrene and isoprene.
Claim 17
Dependent Claim
19 words
A polymer as in claim 9 wherein said unsaturated polymer is polyorganosiloxane having a plurality of unsaturated hydrocarbyl groups.
Claim 18
Dependent Claim
17 words
A polymer as in claim 15 wherein said polyorganosiloxane unsaturated hydrocarbyl groups are allyl or vinyl groups.
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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) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |