Patent US3945959A successfully refreshed from Google Patents.
US3945959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil modified imidized polyester resins
Assignee: Elantas PDG Inc
•
Filing: 1974-07-17
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Granted: 1976-03-23
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Expires: 1994-07-17
Abstract
Abstract This invention relates to oil modified imidized polyester resins containing isocyanurates of the formula ##EQU1## where A is alkylene and preferably ethylene (THIC); and to electrical insulating compositions derived therefrom, particularly those electrical varnishes containing oil soluble resins, such as phenol-aldehyde resins, which possess improved thermal stability.
Inventors
- 👤 Daniel J. Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:36
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
104 words
An oil-modified imidized polyester resin of polyester of I. an isocyanate of the formula ##EQU6## II. a phthalic acid, III. a member selected from the group consisting of (1) fatty acids, (2) fatty oils, (3) mono- and di-glycerides of the fatty acis and (4) mixtures thereof, and Iv. an aromatic tricarboxylic acid and a diamine capable of reacting with each other to form an imide, the isocyanurate being the sole polyol component present in the polyester apart from that occurring in the component (III), there being no other polymer forming components in the said resin other than those selected from the above named components.
Claim 2
Dependent Claim
104 words
An oil-modified imidized polyester resin of polyester of I. an isocyanate of the formula ##EQU6## II. a phthalic acid, III. a member selected from the group consisting of (1) fatty acids, (2) fatty oils, (3) mono- and di-glycerides of the fatty acis and (4) mixtures thereof, and Iv. an aromatic tricarboxylic acid and a diamine capable of reacting with each other to form an imide, the isocyanurate being the sole polyol component present in the polyester apart from that occurring in the component (III), there being no other polymer forming components in the said resin other than those selected from the above named components.
Claim 3
Dependent Claim
11 words
The resin of claim 1 where the isocyanurate is tris(hydroxyethyl) isocyanurate.
Claim 4
Dependent Claim
16 words
The resin of claim 2 where the phthalic acid is isophthalic, terephthalic acid or mixtures thereof.
Claim 5
Dependent Claim
14 words
The resin of claim 3 where tris(hydroxyethyl) isocyanurate is the sole alcoholic moiety employed.
Claim 6
Dependent Claim
13 words
The resin of claim 4 where the component III is a fatty acid.
Claim 7
Dependent Claim
22 words
The resin of claim 1 where the component IV of the resin is trimellitic acid or trimellitic anhydride and an aromatic diamine.
Claim 8
Dependent Claim
22 words
The resin of claim 2 where the component IV of the resin is trimellitic acid or trimellitic anhydride and an aromatic diamine.
Claim 9
Dependent Claim
22 words
The resin of claim 3 where the component IV of the resin is trimellitic acid or trimellitic anhydride and an aromatic diamine.
Claim 10
Dependent Claim
22 words
The resin of claim 4 where the component IV of the resin is trimellitic acid or trimellitic anhydride and an aromatic diamine.
Claim 11
Dependent Claim
22 words
The resin of claim 5 where the component IV of the resin is trimellitic acid or trimellitic anhydride and an aromatic diamine.
Claim 12
Dependent Claim
12 words
A composition comprising the resin of claim 1 with a phenol-aldehyde resin.
Claim 13
Dependent Claim
12 words
A composition comprising the resin of claim 2 with a phenol-aldehyde resin.
Claim 14
Dependent Claim
12 words
A composition comprising the resin of claim 3 with a phenol-aldehyde resin.
Claim 15
Dependent Claim
12 words
A composition comprising the resin of claim 4 with a phenol-aldehyde resin.
Claim 16
Dependent Claim
12 words
A composition comprising the resin of claim 5 with a phenol-aldehyde resin.
Claim 17
Dependent Claim
12 words
A composition comprising the resin of claim 6 with a phenol-aldehyde resin.
Claim 18
Dependent Claim
12 words
A composition comprising the resin of claim 7 with a phenol-aldehyde resin.
Claim 19
Dependent Claim
12 words
A composition comprising the resin of claim 8 with a phenol-aldehyde resin.
Claim 20
Dependent Claim
12 words
A composition comprising the resin of claim 9 with a phenol-aldehyde resin.
Claim 21
Dependent Claim
12 words
A composition comprising the resin of claim 10 with a phenol-aldehyde resin.
Claim 22
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 1.
Claim 23
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 2.
Claim 24
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 3.
Claim 25
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 4.
Claim 26
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 5.
Claim 27
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 6.
Claim 28
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 7.
Claim 29
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 8.
Claim 30
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 9.
Claim 31
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 10.
Claim 32
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 11.
Claim 33
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 12.
Claim 34
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 13.
Claim 35
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 14.
Claim 36
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 15.
Claim 37
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 16.
Claim 38
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 17.
Claim 39
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 18.
Claim 40
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 19.
Claim 41
Dependent Claim
10 words
An electrical conductor insulated with the composition of claim 20.
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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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |