US4239814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing electrically insulating, highly flexible and/or solderable coatings
Assignee: Axalta Coating Systems Germany GmbH and Co KG
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Filing: 1978-08-31
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Granted: 1980-12-16
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Expires: 1998-08-31
Abstract
Abstract A method of producing electrically insulating highly flexible and/or solderable coatings on electrical conductors or fibre materials which comprises (A) coating on said conductor or fibre material with a solution comprising: (i) isocyanates masked with compounds having reactive hydrogen atoms in the molecule and selected from the group consisting of acid amides having 1 or 2 amide hydrogen atoms, hydroxylamine, reaction products of hydroxylamine with carbonyl compounds, imines having an imine hydrogen atom, and lactams with melting or sublimation points below 25° C.; (ii) polyester resins and modified polyester resin selected from the group consisting of imide-modified polyester resins, amide-modified polyester resins and mixtures thereof said polyester resins and modified polyester resins having a content of terminal hydroxyl groups of from 1 to 16% by weight and being derived from compounds selected from the group consisting of polyhydric alcohols, aliphatic carboxylic acids, polybasic carboxylic acids having carboxyl groups bonded to an aromatic ring, and amino group containing compounds; and (iii) solvents having from 1 to 10 carbon atoms, a boiling point of at most 250° C. and being selected from the group consisting of araliphatic ketones; aliphatic ketones, araliphatic alcohols, aliphatic alcohols, ether oxygen containing araliphatic alcohols, ether oxygen-containing aliphatic alcohols, aliphatic keto-alcohols, araliphatic keto-alcohols, esterified aliphatic alcohols, and esterified araliphatic alcohols; and (B) heating to a working temperature of above 140° C., and solutions for use in this method.
Inventors
- 👤 Klaus Nagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:42
CPC Classifications
C; C09; C09D; C09D175/00; C09D175/04; C09D175/06; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/303; H01B3/42; H01B3/421
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
221 words
A method of producing electrically insulating highly flexible and/or solderable coatings on electrical conductors or fibre materials which comprise (A) coating said conductor or fibre material with a solution comprising: (i) isocyanates masked with compounds having reactive hydrogen atoms in the molecule and selected from the group consisting of acid amides having 1 or 2 amide hydrogen atoms, hydroxylamine, reaction products of hydroxylamine with carbonyl compounds, imines having an imine hydrogen atom, and lactams with melting or sublimation points below 25° C.; (ii) polyester resins and modified polyester resins selected from the group consisting of imide-modifed polyester resins, amide-modified polyester resins and mixtures thereof, said polyester resins and modified polyester resins having a content of terminal hydroxyl groups of from 1 to 16% by weight and being derived from compounds selected from the group consisting of polyhydric alcohols, aliphatic carboxylic acids, polybasic carboxylic acids having carboxyl groups bonded to an aromatic ring, and amino group containing compounds; and (iii) solvents having from 1 to 10 carbon atoms, a boiling point of at most 250° C. and being selected from the group consisting of araliphatic ketones, aliphatic ketones, araliphatic alcohols, aliphatic alcohols, ether oxygen-containing araliphatic alcohols, ether oxygen-containing aliphatic alcohols, aliphatic keto-alcohols, araliphatic keto-alcohols, esterified aliphatic alcohols, and esterified aliphatic alcohols, and (B) heating to a working temperature of above 140° C.
Claim 2
Independent Claim
221 words
A method of producing electrically insulating highly flexible and/or solderable coatings on electrical conductors or fibre materials which comprise (A) coating said conductor or fibre material with a solution comprising: (i) isocyanates masked with compounds having reactive hydrogen atoms in the molecule and selected from the group consisting of acid amides having 1 or 2 amide hydrogen atoms, hydroxylamine, reaction products of hydroxylamine with carbonyl compounds, imines having an imine hydrogen atom, and lactams with melting or sublimation points below 25° C.; (ii) polyester resins and modified polyester resins selected from the group consisting of imide-modifed polyester resins, amide-modified polyester resins and mixtures thereof, said polyester resins and modified polyester resins having a content of terminal hydroxyl groups of from 1 to 16% by weight and being derived from compounds selected from the group consisting of polyhydric alcohols, aliphatic carboxylic acids, polybasic carboxylic acids having carboxyl groups bonded to an aromatic ring, and amino group containing compounds; and (iii) solvents having from 1 to 10 carbon atoms, a boiling point of at most 250° C. and being selected from the group consisting of araliphatic ketones, aliphatic ketones, araliphatic alcohols, aliphatic alcohols, ether oxygen-containing araliphatic alcohols, ether oxygen-containing aliphatic alcohols, aliphatic keto-alcohols, araliphatic keto-alcohols, esterified aliphatic alcohols, and esterified aliphatic alcohols, and (B) heating to a working temperature of above 140° C.
Claim 3
Dependent Claim
30 words
A method according to claim 1, characterised in that one or more of the components (i) to (iii) contains at least one compound having at least one five-membered imide ring.
Claim 4
Dependent Claim
25 words
A method according to claim 1, characterised in that the solution further comprises compounds selected from the group consisting of catalysts, additives and auxiliary material.
Claim 5
Dependent Claim
16 words
A method according to claim 1, characterised in that the isocyanate are masked with aliphatic oximes.
Claim 6
Dependent Claim
20 words
A method according to claim 1, characterised in that the isocyanates are those having isocyanate groups bonded to aromatic rings.
Claim 7
Dependent Claim
200 words
A solution for the production of electrically insulating highly flexible and/or solderable coatings on electric conductors or fibre materials, said solution comprising: (i) isocyanates masked with compunds having reactive hydrogen atoms in the molecule and selected from the group consisting of acid amides having 1 to 2 amide hydrogen atoms, hydroxylamine, reaction products of hydroxylamine with carbonyl compounds, imines having an imine hydrogen atom, and lactams with melting or sublimation points below 25° C.; (ii) polyester resins and modified polyester resins selected from the group consisting of imide-modified polyester resins, amide-modified polyester resins and, mixtures thereof, said polyester resins and modified polyester resins having a content of terminal hydroxyl groups of from 1 to 16% by weight and being derived from compounds selected from the group consisting of polyhydric alcohols, aliphatic carboxylic acids, polybasic carboxylic acids having carboxyl groups bonded to an aromatic ring, and amino group containing compounds; and (iii) solvents having from 1 to 10 carbon atoms, a boiling point of at most 250° C. and being selected from the group consisting of araliphatic ketones, aliphatic ketones, araliphatic alcohols, aliphatic alcohols, ether oxygen-containing araliphatic alcohols, ether oxygen-containing aliphatic alcohols, araliphatic ketoalcohols, esterified aliphatic alcohols, and esterified araliphatic alcohols.
Claim 8
Dependent Claim
200 words
A solution for the production of electrically insulating highly flexible and/or solderable coatings on electric conductors or fibre materials, said solution comprising: (i) isocyanates masked with compunds having reactive hydrogen atoms in the molecule and selected from the group consisting of acid amides having 1 to 2 amide hydrogen atoms, hydroxylamine, reaction products of hydroxylamine with carbonyl compounds, imines having an imine hydrogen atom, and lactams with melting or sublimation points below 25° C.; (ii) polyester resins and modified polyester resins selected from the group consisting of imide-modified polyester resins, amide-modified polyester resins and, mixtures thereof, said polyester resins and modified polyester resins having a content of terminal hydroxyl groups of from 1 to 16% by weight and being derived from compounds selected from the group consisting of polyhydric alcohols, aliphatic carboxylic acids, polybasic carboxylic acids having carboxyl groups bonded to an aromatic ring, and amino group containing compounds; and (iii) solvents having from 1 to 10 carbon atoms, a boiling point of at most 250° C. and being selected from the group consisting of araliphatic ketones, aliphatic ketones, araliphatic alcohols, aliphatic alcohols, ether oxygen-containing araliphatic alcohols, ether oxygen-containing aliphatic alcohols, araliphatic ketoalcohols, esterified aliphatic alcohols, and esterified araliphatic alcohols.
Claim 9
Dependent Claim
30 words
A solution according to claim 6, characterised in that one or more of the components (i) to (iii) contains at least one compound having at least one five-membered imide ring.
Claim 10
Dependent Claim
24 words
A solution according to claim 6, characterised in that it further comprises compounds selected from the group consisting of catalysts, additives and auxiliary materials.
Claim 11
Dependent Claim
16 words
A solution according to claim 6 characterised in that the isocyanate are masked with aliphtic oximes.
Claim 12
Dependent Claim
20 words
A solution according to claim 6 characterised in that the isocyanates are those having isocyanate groups bonded to aromatic rings.
References Cited (Backward Citations)
US3732168A
Cited
US3646374A
Cited
US3906139A
Cited
US3917892A
Cited
US3922465A
Cited
US4096291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |