Patent JPS60169647A successfully refreshed from Google Patents.
US3772064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive thermosetting resinous adhesive tapes
Assignee: Westinghouse Electric Corp
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Filing: 1971-07-13
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Granted: 1973-11-13
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Expires: 1991-07-13
Abstract
Abstract A thermosetting adhesive is made from a saturated highly aromatic polyester resin derived from a low molecular weight dihydric or trihydric polyol, a difuntional aliphatic acid or its corresponding halide or anhydride and a polyfunctional aromatic acid, or its corresponding halide or anhydride, in specified proportions. The adhesive can be applied to fibrous backing to provide a pressure sensitive tape that can be cured to a rigid thermoset state with excellent physical strength and high temperature electrical insulating properties.
Inventors
- 👤 M Mendelsohn
- 👤 C Ruffining
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:45
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; C; C08; C08G; C08G63/00; C08G63/02; H01B3/30; H01B3/42; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/3162; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/2754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
The adhesive tape of claim 1 wherein the saturated aliphatic organic compound (A) is a low molecular weight polyol selected from the group consisting of 1,2,4-butanetriol, 1,2,3-butanetriol, trimethylolethane, trimethylol propane, glycerol and mixtures thereof, the aliphatic organic difunctional acid (B) is a dicarboxylic acid selected from the group consisting of succinic acid, glutaric acid, 3,3-dimethylpentanedioic acid, adipic acid and their corresponding acyl halides and anhydrides, the polycarboxylic acid derivative of benzene (C) is an aromatic acid selected from the group consisting of phthalic acid, isophthalic acid, terephthalic acid, trimellitic acid, pyromellitic acid, mixtures thereof and their corresponding acyl halides and anhydrides and the hydroxy derivative of benzoic acid (D) is an aromatic acid selected from the group consisting of salicyclic acid, p-hydroxy benzoic acid, mixtures thereof and their corresponding acyl halides and anhydrides.
Claim 2
Dependent Claim
18 words
up to about 60 weight percent finely divided mineral filler, based on the solids content of the polyester.
References Cited (Backward Citations)
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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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |