US4783490A
Expired / Lapsed
US
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Radiation active silicon compounds having amide limited mercaptan functional groups
Assignee: General Electric Co
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Filing: 1987-07-31
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Granted: 1988-11-08
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Expires: 2007-07-31
Abstract
Abstract Mercaptan substituted silicon compounds are produced by the reaction of amine with carboxyl. UV curable silicon compositions are produced from such compounds.
Inventors
- 👤 Richard P. Eckberg
- 👤 Karen D. Riding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:42
CPC Classifications
C; C08; C08F; C08F293/00; C08F283/00; C08F283/12; C08F283/122; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/392
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A UV curable silicon composition comprising: (a) a mercapto substituted silicon compound comprising UV active moieties of the formula: .tbd.Si--R--NHCO--R.sup.4 --SH where R and R 4 are independently divalent substituted or unsubstituted hydrocarbon radicals of from 1 to about 12 carbon atoms; (b) an effective amount of a free radical type photoinitiator; and (c) a reactive co-compound having --CR 1 ═CR 1 H groups where R 1 is hydrogen or a substituted or unsubstituted alkyl group of from 1 to 4 carbon atoms.
Claim 2
Dependent Claim
83 words
A UV curable silicon composition comprising: (a) a mercapto substituted silicon compound comprising UV active moieties of the formula: .tbd.Si--R--NHCO--R.sup.4 --SH where R and R 4 are independently divalent substituted or unsubstituted hydrocarbon radicals of from 1 to about 12 carbon atoms; (b) an effective amount of a free radical type photoinitiator; and (c) a reactive co-compound having --CR 1 ═CR 1 H groups where R 1 is hydrogen or a substituted or unsubstituted alkyl group of from 1 to 4 carbon atoms.
Claim 3
Dependent Claim
19 words
The composition of claim 1 wherein there are at least one --CR 1 ═CH 2 groups for each --SH.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein there are at least two --CR 1 ═CR 1 H groups for each --SH.
Claim 5
Dependent Claim
11 words
The composition of claim 1 which further contains a reactive diluent.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said mercapto substituted silicon compound is a silane.
Claim 7
Dependent Claim
16 words
The composition of claim 1 wherein said mercapto substituted silicon compound is a siloxane or polysiloxane.
Claim 8
Dependent Claim
57 words
The composition of claim 6 wherein said polysiloxane has a viscosity between about 5 and 100,000,000 centipoise at 25° C. and comprises units of the formula: R.sub.d.sup.2 SiO.sub.(4-d)/2 wherein d is 0, 1, 2 or 3 and R 2 is hydrogen or a monovalent substituted or unsubstituted hydrocarbon radical of from 1 to about 12 carbon atoms.
Claim 9
Dependent Claim
28 words
The composition of claim 7 wherein said polysiloxane contains active mercaptan groups by weight equivalent to about 0.1 to about 20% by weight of siloxane bonded aminofunctional 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) | 1991-11-08 | 1992-05-09 | 1992-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-08 | 1996-05-09 | 1996-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-08 | 2000-05-09 | 2000-11-08 | $7700.00 | Window Closed / Lapsed |