US6084040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scratch-resistant conductive coatings
Assignee: Heraeus Deutschland GmbH and Co KG
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Filing: 1997-08-12
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Granted: 2000-07-04
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Expires: 2017-08-12
Abstract
Abstract Coatings of electrically conductive polythiophene salts, polythiophene + /An - , and hydrolyzable silanes, wherein the polythiophene group contains positively charged and uncharged recurring units of the formula (I): ##STR1## where, n is an integer from 5 to 100, and R 1 and R 2 , independently of one another, represent hydrogen, an optionally substituted alkyl group having 1 to 20 carbon atoms, --CH 2 --OH, or an aryl group having 6 to 14 carbon atoms, or R 1 and R 2 , together, represent an optionally substituted alkylene group having 1 to 20 carbon atoms, and An - means a polyanion, and wherein the silanes have been hydrolyzed in the presence of the conductive polythiophene salts, and the use thereof for the production of scratch-resistant electrically conductive coatings.
Inventors
- 👤 Friedrich Jonas
- 👤 Klaus Lerch
- 👤 Udo Guntermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; C09; C09D; C09D183/00; C09D183/04; C09D5/00; C09D5/24; H; H01; H01J; H01J29/00; H01J29/86; H01J29/88
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
146 words
A coating composition comprising an electrically conductive polythiophene salt and a hydrolyzable tetraalkoxysilane having the formula (III): (Si)(R"O).sub.4 (III), where R" is an alkyl group having 1 to 4 carbon atoms, wherein the polythiophene salt has the formula: polythiophene + /An - , the polythiophene + group comprising positively charged and uncharged recurring units having the formula (I): ##STR2## where, n is an integer from 5 to 100, and R 1 and R 2 , independently of one another, represent hydrogen, an optionally substituted alkyl group having 1 to 20 carbon atoms, --CH 2 --OH, or an aryl group having 6 to 14 carbon atoms, or R 1 and R 2 , together, represent an optionally substituted alkylene group having 1 to 20 carbon atoms, the An - group comprising a polyanion, and the hydrolyzable tetraalkoxysilane having been hydrolyzed in the presence of the polythiophene salt.
Claim 2
Dependent Claim
146 words
A coating composition comprising an electrically conductive polythiophene salt and a hydrolyzable tetraalkoxysilane having the formula (III): (Si)(R"O).sub.4 (III), where R" is an alkyl group having 1 to 4 carbon atoms, wherein the polythiophene salt has the formula: polythiophene + /An - , the polythiophene + group comprising positively charged and uncharged recurring units having the formula (I): ##STR2## where, n is an integer from 5 to 100, and R 1 and R 2 , independently of one another, represent hydrogen, an optionally substituted alkyl group having 1 to 20 carbon atoms, --CH 2 --OH, or an aryl group having 6 to 14 carbon atoms, or R 1 and R 2 , together, represent an optionally substituted alkylene group having 1 to 20 carbon atoms, the An - group comprising a polyanion, and the hydrolyzable tetraalkoxysilane having been hydrolyzed in the presence of the polythiophene salt.
Claim 3
Dependent Claim
17 words
The coating composition according to claim 1, wherein the polythiophene + group is 3,4-polyethylene dioxythiophene + .
Claim 4
Dependent Claim
17 words
The coating composition according to claim 1, wherein the An - group is polystyrene sulphonate - .
Claim 5
Dependent Claim
19 words
The coating composition according to claim 1, wherein the polythiophene salt is 3,4-polyethylene dioxythiophene + /polystryrene sulphonate - .
Claim 6
Dependent Claim
34 words
The coating composition according to claim 1, further comprising a compound selected from the group consisting of a dihydroxy acid, a polyhydroxy acid, a carboxylic acid, an amide, a lactam, and a mixture thereof.
Claim 7
Dependent Claim
34 words
The coating composition according to claim 1, further comprising a compound selected from the group consisting of a filler, an additive, a water-miscible solvent, an organic acid, an inorganic acid, and a mixture thereof.
Claim 8
Dependent Claim
26 words
The coating composition according to claim 1, further comprising about 0 to 20% by weight, based on the hydrolyzable tetraalkoxysilane, of an organic or inorganic acid.
Claim 9
Dependent Claim
32 words
The coating composition according to claim 1, wherein the polythiophene salt is present in the amount of about 0.1 to 200% by weight, based on a dry residue of the hydrolyzable tetraalkoxysilane.
Claim 10
Dependent Claim
32 words
The coating composition according to claim 8, wherein the polythiophene salt is present in the amount of about 1 to 50% by weight, based on a dry residue of the hydrolyzable tetraalkoxysilane.
Claim 11
Independent Claim
137 words
A method of making a scratch-resistant, electrically conductive or anti-static coating, the method comprising admixing an electrically conductive polythiophene salt and a hydrolyzable tetraalkoxysilane such that the tetraalkoxysilane is hydrolyzed in the presence of the polythiophene salt, the polythiophene salt having the formula: polythiophene + /An - , the polythiophene + group comprising positively charged and uncharged recurring units having the formula (I): ##STR3## where, n is an integer from 5 to 100, R 1 and R 2 , independently of one another, represent hydrogen, an optionally substituted alkyl group having 1 to 20 carbon atoms, --CH 2 --OH, or an aryl group having 6 to 14 carbon atoms, or R 1 and R 2 , together, represent an optionally substituted alkylene group having 1 to 20 carbon atoms, and the An - group comprising a polyanion.
Claim 12
Independent Claim
137 words
A method of making a scratch-resistant, electrically conductive or anti-static coating, the method comprising admixing an electrically conductive polythiophene salt and a hydrolyzable tetraalkoxysilane such that the tetraalkoxysilane is hydrolyzed in the presence of the polythiophene salt, the polythiophene salt having the formula: polythiophene + /An - , the polythiophene + group comprising positively charged and uncharged recurring units having the formula (I): ##STR3## where, n is an integer from 5 to 100, R 1 and R 2 , independently of one another, represent hydrogen, an optionally substituted alkyl group having 1 to 20 carbon atoms, --CH 2 --OH, or an aryl group having 6 to 14 carbon atoms, or R 1 and R 2 , together, represent an optionally substituted alkylene group having 1 to 20 carbon atoms, and the An - group comprising a polyanion.
Claim 13
Dependent Claim
14 words
A coating composition comprising a product prepared by the method according to claim 10.
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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) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |