US4526912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxy resins and use thereof in electric insulation
Assignee: P D GEORGE Co 5200 NORTH SECOND ST ST LOUIS MO 63147 A DE CORP
•
Filing: 1983-12-01
•
Granted: 1985-07-02
•
Expires: 2003-12-01
Abstract
Abstract This invention relates to a composition comprising (1) a phenoxy resin and (2) at least two compositions selected from (a) phenolic resins, (b) melamine resins and (c) polyisocyanates; to the cured products thereof; and to an electrical conductor coated with said cured products.
Inventors
- 👤 Luciano Biorcio
- 👤 Carlo Mensi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:48
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/487; C08G18/4879; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/302; H01B3/36; Y; Y10; Y10S; Y10S525/00; Y10S525/93; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/31504; Y10T428/31511; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
42 words
A composition comprising at least one organic solvent and a mixture of resins consisting essentially of (1) a phenoxy resin and (2) at least two resin components selected from the group consisting of (a) phenolic resins, (b) melamine resins and (c) polyisocyanates.
Claim 2
Dependent Claim
42 words
A composition comprising at least one organic solvent and a mixture of resins consisting essentially of (1) a phenoxy resin and (2) at least two resin components selected from the group consisting of (a) phenolic resins, (b) melamine resins and (c) polyisocyanates.
Claim 3
Dependent Claim
15 words
The composition of claim 1 containing a polyisocyanate and said polyisocyanate is a blocked polyisocyanate.
Claim 4
Dependent Claim
31 words
The composition of claim 1 where the weight ratio of the phenoxy resin to the total weight of the other resin components is between 100 to 5 and 100 to 100.
Claim 5
Dependent Claim
15 words
The composition of claim 3 containing a polyisocyanate and said polyisocyanate is a blocked polyisocyanate.
Claim 6
Dependent Claim
31 words
The composition of claim 1 where the weight ratio of the phenoxy resin to the total weight of the other resin components is between 100 to 5 and 100 to 50.
Claim 7
Dependent Claim
31 words
The composition of claim 1 where the weight ratio of the phenoxy resin to the total weight of the other resin components is between 100 to 5 and 100 to 25.
Claim 8
Dependent Claim
20 words
The composition of claim 1 wherein said mixture of resins constitutes between 25% and 40% by weight of the composition.
Claim 9
Dependent Claim
20 words
The composition of claim 3 wherein said mixture of resins constitutes between 25% and 40% by weight of the composition.
Claim 10
Dependent Claim
20 words
The composition of claim 5 wherein said mixture of resins constitutes between 25% and 40% by weight of the composition.
Claim 11
Dependent Claim
20 words
The composition of claim 6 wherein said mixture of resins constitutes between 25% and 40% by weight of the composition.
Claim 12
Dependent Claim
42 words
The composition of claim 3 wherein the phenoxy resin has a molecular weight higher than 10,000 and the polyisocyanate component is a polyisocyanate blocked with at least one member of the group consisting of phenols, secondary aromatic amines, alcohols, amides and mercaptans.
Claim 13
Dependent Claim
27 words
The composition of claim 11 wherein said polyisocyanate is blocked with at least one member of the group consisting of phenol, cresol, xylenols, caprolactam and benzyl alcohol.
Claim 14
Dependent Claim
25 words
The composition of claim 12 which has a solids content higher than 30% by weight and a viscosity of about 3000 cps at 25° C.
Claim 15
Dependent Claim
38 words
The composition of claim 13 wherein the organic solvent contains at least one member of the group consisting of phenols; aromatic hydrocarbons; aliphatic and aromatic alcohols; aliphatic, aromatic and cycloaliphatic ketones; aromatic and aliphatic esters; and glycol ethers.
Claim 16
Dependent Claim
16 words
The composition of claim 14 wherein the organic solvent contains at least 50% by weight phenols.
Claim 17
Dependent Claim
6 words
The cured product of claim 1.
Claim 18
Dependent Claim
6 words
The cured product of claim 3.
Claim 19
Dependent Claim
6 words
The cured product of claim 2.
Claim 20
Dependent Claim
6 words
The cured product of claim 4.
References Cited (Backward Citations)
EP0008811A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-01 | 1988-12-31 | 1989-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-01 | 1992-12-31 | 1993-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-01 | 1996-12-31 | 1997-07-02 | $7700.00 | Window Closed / Lapsed |