US3732168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and composition for the production of insulating solderable coatings
Assignee: Axalta Coating Systems Germany GmbH and Co KG
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Filing: 1970-11-09
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Granted: 1973-05-08
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Expires: 1990-11-09
Abstract
Abstract A process and composition for producing insulating solderable coatings on electrical conductors are disclosed wherein a solution containing a polyhydroxyl compound having a heterocyclic ring system and from 5 to 12 percent by weight hydroxyl groups, and a polyfunctional isocyanate is coated on the conductor and cured at a temperature above 250* C. The coated conductors are characterized by high resistance to heat and chemicals, as well as short soldering times in a solder bath.
Inventors
- 👤 G Ottmann
- 👤 H Poth
- 👤 H Holfort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/307; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/46; C08G18/4615; C08G18/4638; C08G18/64; C08G18/6415; C08G18/6438; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; H01B3/303; H01B3/306; H01B3/42; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
24 words
A process as claimed in claim 1, wherein the compound of component (a) contains 0.4 to 4.0 heterocyclic rings per 1,000 molecular weight units.
Claim 2
Dependent Claim
22 words
A process as claimed in claim 1, wherein the compound of component (a) contains 5-membered imide rings as the heterocyclic ring systems.
Claim 3
Dependent Claim
20 words
A process as claimed in claim 1, wherein the compound of (a) contains pyrrolidone rings as the heterocyclic ring systems.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 1, wherein the compound of component (a) contains hydantoin rings as the heterocyclic ring systems.
Claim 5
Dependent Claim
32 words
A process as claimed in claim 1, wherein the compound of component (a) is a condensation or addition product of a polyol with a polycarboxylic acid, polyisocyanate, polyamine, or a mixture thereof.
Claim 6
Dependent Claim
27 words
A process as claimed in claim 1, wherein the compound of component (a) is a polyester imide or a polyester imide coNtaining amide bonds in the molecule.
Claim 7
Dependent Claim
19 words
A process as claimed in claim 1, wherein the compound of component (a) contains urethane groups in the molecule.
Claim 8
Dependent Claim
66 words
A process as claimed in claim 1, wherein the compound of component (a) is a condensation product of (A) polyfunctional alcohols, amines, and amino alcohols; polyisocyanates; polyisothiocyanates; or mixtures thereof and (B) aromatic ring containing polycarboxylic acids having a functionality of 2-4 wherein at least 10 molar percent of (B) contains one or more carboxyl groups attached through a C-atom to an aromatically substituted imino group.
Claim 9
Dependent Claim
71 words
A composition suitable for producing insulating solderable coatings on electrical conductors according to the process of claim 1, comprising a. a compound with at least two hydroxyl groups, and b. a masked polyfunctional isocyanate, wherein component (a) or (b) is partly trifunctional or more highly functional, and wherein the compound of component (a) contains heterocyclic ring systems in the molecule and from 5 to 12 percent by weight of hydroxyl groups.
Claim 10
Dependent Claim
24 words
A composition as claimed in claim 9, wherein the compound of component (a) contains 0.4 to 4.0 heterocyclic rings per 1,000 molecular weight units.
Claim 11
Dependent Claim
22 words
A composition as claimed in claim 9, wherein the compound of component (a) contains five-membered imide rings as the heterocyclic ring systems.
Claim 12
Dependent Claim
21 words
A composition as claimed in claim 9, wherein the compound of component (a) contains pyrrolidone rings as the heterocyclic ring systems.
Claim 13
Dependent Claim
21 words
A composition as claimed in claim 9, wherein the compound of component (a) contains hydantoin rings as the heterocyclic ring systems.
Claim 14
Dependent Claim
33 words
A composition as claimed in claim 9, wherein the compound of component (a) is a condensation product or addition product of a polyol with a polycarboxylic acid, polyisocyanate, polyamine, or a mixture thereof.
Claim 15
Dependent Claim
27 words
A composition as claimed in claim 9, wherein the compound of component (a) is a polyester imide or a polyester imide containing amide bonds in the molecule.
Claim 16
Dependent Claim
19 words
A composition as claimed in claim 9, wherein the compound of component (a) contains urethane groups in the molecule.
Claim 17
Dependent Claim
66 words
A composition as claimed in claim 9, wherein the compound of component (a) is a condensation product of (A) polyfunctional alcohols, amines, and amino alcohols; polyisocyanates; polyisothiocyanates; or mixtures thereof and (B) aromatic ring containing polycarboxylic acids having a functionality of 2-4 wherein at least 10 molar percent of (B) contains one or more carboxyl groups attached through a C-atom to an aromatically substituted imino group.
Claim 18
Dependent Claim
20 words
An electrical conductor having an insulation solderable coating comprised of a cured coating of the composition claimed in claim 9.
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US3426098A
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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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |