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US4042612A
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Polymeric alkoxysilanes
Assignee: Stauffer Chemical Co
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Filing: 1977-01-03
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Granted: 1977-08-16
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Expires: 1997-01-03
Abstract
Abstract Polymeric alkoxysilanes which comprise a polymer network of the average formula <IMAGE> WHEREIN EACH R is an independently selected hydrocarbon or hydrocarbon ether radical, each R' is an independently selected hydrocarbon radical, all of said radicals being free of aliphatic unsaturation, a has a value from 1 to 3; and b has a value from 0.0001 to 1.0. These polymers are made by reacting an alkoxysilane of the formula <IMAGE> WITH WATER AND WITH AN ORGANOSULFONIC ACID OF THE FORMULA R1 SO3H. These polymers are useful in zinc-rich paints and in binders for investment castings.
Inventors
- 👤 Walter L. Magee, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:55
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/28; C07; C07F; C07F7/00; C07F7/02; C07F7/025; C07F7/04; C08K; C08K3/00; C08K3/10; C09; C09D; C09D183/00; C09D183/04; C09D183/08; C07F7/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
55 words
A polymeric alkoxysilane having the average formula ##STR5## wherein each R is an independently selected hydrocarbon radical or hydrocarbon ether radical free of aliphatic unsaturation, each R 1 is an independently selected hydrocarbon radical free of aliphatic unsaturation, a has a value from 1 to 3 and b has a value from 0.001 to 1.0.
Claim 2
Dependent Claim
55 words
A polymeric alkoxysilane having the average formula ##STR5## wherein each R is an independently selected hydrocarbon radical or hydrocarbon ether radical free of aliphatic unsaturation, each R 1 is an independently selected hydrocarbon radical free of aliphatic unsaturation, a has a value from 1 to 3 and b has a value from 0.001 to 1.0.
Claim 3
Dependent Claim
98 words
The polymeric silane of claim 1 where each R is an independently selected alkyl or alkoxyalkyl of 1 to 18 carbon atoms, aryl of 6 to 13 ring carbon atoms or alkylsubstituted aryl where the aryl has 6 to 13 ring carbon atoms and the alkyl from 1 to 5 carbon atoms, and each R 1 is an independently selected alkyl of 1 to 18 carbon atoms, aryl of 6 to 13 ring carbon atoms or alkylsubstituted aryl where the aryl has from 6 to 13 ring carbon atoms and the alkyl from 1 to 5 carbon atoms.
Claim 4
Dependent Claim
45 words
The polymeric alkoxysilane of claim 1 wherein R is lower alkyl; R' is lower alkyl, phenyl or alkylphenyl where the alkyl group has 1 or 2 carbon atoms; a is an integer from 1.2 to 2.4 and b is an integer from 0.001 to 0.1.
Claim 5
Dependent Claim
10 words
The polymeric alkoxysilane of claim 2 having the formula ##STR6##
Claim 6
Dependent Claim
10 words
The polymeric alkoxysilane of claim 3 having the formula ##STR7##
Claim 7
Dependent Claim
10 words
The polymeric alkoxysilane of claim 3 having the formula ##STR8##
References Cited (Backward Citations)
US3872146A
Cited
US3948963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |