US6632472B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Redispersable latex comprising a polythiophene
Assignee: Agfa Gevaert NV
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Filing: 2001-06-26
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Granted: 2003-10-14
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Expires: 2021-06-26
Abstract
Abstract A redispersible or soluble product, optionally having a solids content higher than 10% by weight, obtainable by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene; a printing ink comprising the above product; a coating dispersion or solution comprising the above product; and a method for making an antistatic or electroconductive layer comprising the steps of redispersing or diluting the above product by adding water or an organic solvent so as to obtain a dispersion or solution, optionally adding other ingredients to the coating solution or dispersion and applying the dispersion or solution to an object.</PTEXT>
Inventors
- 👤 Frank Louwet
- 👤 Raf Samijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/52; C08; C08G; C08G61/00; C08G61/12; C08G61/122; C08G61/123; C08G61/126; C09D11/02; C09D11/10; C09D11/106; C09D165/00
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
31 words
A freeze dried, redispersible or soluble product comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene wherein said product is a dried product or a paste.
Claim 2
Dependent Claim
31 words
A freeze dried, redispersible or soluble product comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene wherein said product is a dried product or a paste.
Claim 3
Dependent Claim
21 words
A product according to claim 1 wherein the concentrated dispersion or paste has a solids content higher than 10% by weight.
Claim 4
Dependent Claim
86 words
A product according to claim 1 wherein the polymer of a substituted or unsubstituted thiophene is represented by formula (I): wherein n is larger than 1 and each of R 1 and R 2 independently represents hydrogen or an optionally substituted C 1-4 alkyl group or together represent an optionally substituted C 1-4 alkylene group or an optionally substituted cycloalkylene group, preferably an ethylene group, an optionally alkyl-substituted methylene group, an optionally C 1-12 alkyl- or phenyl-substituted ethylene group, a 1,3-propylene group or a 1,2-cyclohexylene group.
Claim 5
Dependent Claim
22 words
A product according to claim 1 wherein the polyanion is the anion of poly(styrene sulphonate) or of a copolymer thereof with styrene.
Claim 6
Independent Claim
81 words
A method for making an antistatic or electroconductive layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene product by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object.
Claim 7
Independent Claim
81 words
A method for making an antistatic or electroconductive layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene product by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object.
Claim 8
Independent Claim
78 words
A method for making an antistatic or electroconductive layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene product by adding water or an organic solvent so as to obtain a printing ink; optionally adding other ingredients to the printing ink; and applying the printing ink to an object.
Claim 9
Independent Claim
78 words
A method for making an antistatic or electroconductive layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene product by adding water or an organic solvent so as to obtain a printing ink; optionally adding other ingredients to the printing ink; and applying the printing ink to an object.
Claim 10
Independent Claim
84 words
A method for making an electroconductive layer or pattern comprising the steps of: redispersing or diluting a freeze dried, redispersible or soluble product comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object, wherein the layer or pattern has a surface resistivity lower than 10 6 Ω/square.
Claim 11
Independent Claim
84 words
A method for making an electroconductive layer or pattern comprising the steps of: redispersing or diluting a freeze dried, redispersible or soluble product comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object, wherein the layer or pattern has a surface resistivity lower than 10 6 Ω/square.
Claim 12
Independent Claim
93 words
A method for making an antistatic layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object, wherein the layer or pattern has a surface resistivity of at least 10 6 Ω/square.
Claim 13
Independent Claim
93 words
A method for making an antistatic layer or pattern comprising the steps of: redispersing or diluting a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene by adding water or an organic solvent so as to obtain a solution or dispersion; optionally adding other ingredients to the solution or dispersion; and applying the solution or dispersion to an object, wherein the layer or pattern has a surface resistivity of at least 10 6 Ω/square.
Claim 14
Dependent Claim
38 words
A coating solution or dispersion comprising a product comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene.
Claim 15
Dependent Claim
38 words
A coating solution or dispersion comprising a product comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene.
Claim 16
Dependent Claim
16 words
A coating solution or dispersion according to claim 9 further comprising water or an organic solvent.
Claim 17
Dependent Claim
27 words
A coating solution or dispersion according to claim 9 wherein the concentration of the product is at least 5% by weight of the coating solution or dispersion.
Claim 18
Dependent Claim
27 words
A coating solution or dispersion according to claim 9 wherein the concentration of the product is at least 10% by weight of the coating solution or dispersion.
Claim 19
Dependent Claim
16 words
A coating solution or dispersion according to claim 9 further comprising a binder or a thickener.
Claim 20
Dependent Claim
51 words
A process for the use of a coating solution or dispersion comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene comprising the step of preparing an antistatic or electroconductive layer.
Claim 21
Dependent Claim
51 words
A process for the use of a coating solution or dispersion comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene comprising the step of preparing an antistatic or electroconductive layer.
Claim 22
Dependent Claim
36 words
A printing ink comprising a product comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene.
Claim 23
Dependent Claim
36 words
A printing ink comprising a product comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene.
Claim 24
Dependent Claim
14 words
A printing ink according to claim 15 further comprising water or an organic solvent.
Claim 25
Dependent Claim
22 words
A printing ink according to claim 15 wherein the concentration of the product is at least 10% by weight of the ink.
Claim 26
Dependent Claim
38 words
A printing ink according to claim 15 , wherein the concentration of the latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene is at least 10% by weight of the printing ink.
Claim 27
Dependent Claim
14 words
A printing ink according to claim 15 further comprising a binder or a thickener.
Claim 28
Dependent Claim
16 words
A printing ink according to claim 15 wherein said printing ink is a driographic printing ink.
Claim 29
Dependent Claim
49 words
A process for the use of a printing ink comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene comprising the step of printing an antistatic or electroconductive layer.
Claim 30
Dependent Claim
49 words
A process for the use of a printing ink comprising a redispersible or soluble product obtained by freeze drying an aqueous dispersion of a latex comprising a polyanion and a polymer or copolymer of a substituted or unsubstituted thiophene comprising the step of printing an antistatic or electroconductive layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-10-13 | 2007-04-14 | 2007-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-10-13 | 2011-04-14 | 2011-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-10-13 | 2015-04-14 | 2015-10-14 | $7700.00 | Window Closed / Lapsed |