Patent US4640940A successfully refreshed from Google Patents.
US4640940A
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Polyol terminated silicones and derivatives thereof
Assignee: Henkel Loctite Corp
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Filing: 1985-08-13
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Granted: 1987-02-03
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Expires: 2005-08-13
Abstract
Abstract Polyorganosiloxane polymers which include at least one group of the formula: ##STR1## where R 1 is an organo group; R 2 is alkylene or alkenylene; G is a n+1 valent hydrocarbon, oxyhydrocarbon or poly(oxyhydrocarbon) radical in which some or all of the hydrogen atoms may optionally be substituted by halogen atoms; R 3 is H or an organic functional group, particularly polymerizable groups, polymerization accelerating groups or polymerization initiating groups; n is an integer of 2 or more provided that when n is 2 and one of R 3 is H, the other R 3 group is also H; and a is 0, 1 or 2. Additional polyorganosiloxane polymers include at least one group of the formula: ##STR2## where R 4 R 5 are H or a mono valent hydrocarbon group.
Inventors
- 👤 Anthony F. Jacobine
- 👤 David M. Glaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:38
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08F; C08F30/00; C08F30/04; C08F30/08
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
140 words
A polydiorganosiloxane having at least one repeat unit represented by the formula ##STR28## where R 1 is an organo group; R 2 is alkylene or alkenylene; G is a n+1 valent hydrocarbon, oxyhydrocarbon or poly(oxyhydrocarbon) radical in which some or all of the hydrogen atoms may optionally be substituted by halogen atoms; the R 3 groups are H, groups having epoxy functionality, styryl groups which may be optionally substituted, organic groups having photoinitiator activity, aryl sulfonyl carbamyl groups, mercaptoacetyl groups, mixtures of one or more said groups or mixtures of one or more said groups with one or more groups having (meth)acrylic functionality; n is an integer of 2 or more provided that when n is 2 and one of R 3 is H then the other R 3 group is also H; and a is 0, 1 or 2.
Claim 2
Dependent Claim
140 words
A polydiorganosiloxane having at least one repeat unit represented by the formula ##STR28## where R 1 is an organo group; R 2 is alkylene or alkenylene; G is a n+1 valent hydrocarbon, oxyhydrocarbon or poly(oxyhydrocarbon) radical in which some or all of the hydrogen atoms may optionally be substituted by halogen atoms; the R 3 groups are H, groups having epoxy functionality, styryl groups which may be optionally substituted, organic groups having photoinitiator activity, aryl sulfonyl carbamyl groups, mercaptoacetyl groups, mixtures of one or more said groups or mixtures of one or more said groups with one or more groups having (meth)acrylic functionality; n is an integer of 2 or more provided that when n is 2 and one of R 3 is H then the other R 3 group is also H; and a is 0, 1 or 2.
Claim 3
Dependent Claim
16 words
A polydihydrocarbylsiloxane as in claim 1 terminated with groups of formula (I) where a is 2.
Claim 4
Dependent Claim
22 words
A polydiorganosiloxane as in claim 1 where the R 3 groups are said mixtures with one or more groups having (meth)acrylic functionality.
Claim 5
Dependent Claim
19 words
A compound as in claim 3 where the R 3 (meth)acrylic groups are selected from acryl, methacryl, or methacryloxyethylcarbamyl.
Claim 6
Dependent Claim
12 words
A compound as in claim 1 wherein n is 3 or more.
Claim 7
Dependent Claim
21 words
A compound as in claim 1 where the R 3 groups comprise a mixture of groups having (meth)acrylic and epoxy functionality.
Claim 8
Dependent Claim
13 words
A compound as in claim 1 where R 2 is a propylene group.
Claim 9
Dependent Claim
21 words
A compound as in claim 1 wherein the R 3 groups comprise a mixture of groups having (meth)acrylic and arylsulfonylcarbamyl groups.
Claim 10
Dependent Claim
13 words
A compound as in claim 1 where R 3 is a photoinitiating group.
Claim 11
Dependent Claim
47 words
A compound as in claim 9 where the photoinitiating groups is selected from ##STR29## where R 7 is H or alkyl and R 8 is hydrocarbyl or R 7 and R 8 together with the carbon atom to which they are attached comprise a cyclic hydrocarbyl group.
Claim 12
Dependent Claim
51 words
A compound as in claim 1 where R 3 is ##STR30## where R 9 and R 10 are both H or one of R 9 and R 10 is H and the other methyl, R 11 and R 12 are H, lower alkyl or, if R 10 is not methyl, alkoxy.
Claim 13
Dependent Claim
11 words
A compound as in claim 1 where R 3 is mercaptoacetyl.
Claim 14
Dependent Claim
17 words
A compound as in claim 1 where one said R 3 group is included an epoxy group.
Claim 15
Dependent Claim
14 words
A compound as in claim 13 where the R 3 epoxy group is glycidyl.
Claim 16
Dependent Claim
41 words
A polyorganosiloxane which includes at least one unit of the formula ##STR31## where R 1 is a hydrocarbyl group, R 2 is alkylene, G is a trivalent hydrocarbon or oxyhydrocarbon group, and R 4 and R 5 are H or hydrocarbyl.
Claim 17
Dependent Claim
41 words
A polyorganosiloxane which includes at least one unit of the formula ##STR31## where R 1 is a hydrocarbyl group, R 2 is alkylene, G is a trivalent hydrocarbon or oxyhydrocarbon group, and R 4 and R 5 are H or hydrocarbyl.
Claim 18
Dependent Claim
15 words
A compound as in claim 15 having at least two said units of formula II.
Claim 19
Dependent Claim
13 words
A compound as in claim 16 where R 4 is a vinyl group.
Claim 20
Dependent Claim
23 words
A cureable composition comprising a compound having plural alkylthiol functionality, a compound as in claim 17 and a free radical or cationic photoinitiator.
Claim 21
Dependent Claim
17 words
A cureable composition comprising a compound as in claim 11 and a free radical or cationic photoinitiator.
Claim 22
Dependent Claim
15 words
A cureable composition comprising a compound as in claim 3 and a free radical initiator.
Claim 23
Dependent Claim
15 words
A cureable composition as in claim 20 wherein the free radical initiator is a photoinitiator.
Claim 24
Dependent Claim
14 words
A cureable composition comprising a compound as in claim 8 and a peroxy catalyst.
Claim 25
Dependent Claim
13 words
A polydiorganosiloxane as in claim 1 where the R 3 groups are H.
Claim 26
Dependent Claim
12 words
A polydiorganosiloxane as in claim 23 where n is 3 or more.
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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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |