US4052219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coating composition
Assignee: Phillips Petroleum Co
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Filing: 1976-04-28
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Granted: 1977-10-04
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Expires: 1996-04-28
Abstract
Abstract A pipe coating composition consisting essentially of a binder, mineral aggregates, a finely divided mineral filler and synthetic organic fibers exhibits improved cracking time as compared to a pipe coating composition containing glass fibers instead of the organic fiber.
Inventors
- 👤 Oren L. Marrs
- 👤 Robert E. Reusser
- 👤 Dale O. Tieszen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:20
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/12; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08L; C08L23/00; C08L23/26; C08L23/28; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L67/00; C08L77/00; C08L81/00; C08L81/04; C08L95/00; C09; C09D; C09D195/00; Y; Y10; Y10S; Y10S138/00; Y10S138/02; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/31504; Y10T428/31678; Y10T428/31717
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
68 words
A composition of matter consisting essentially of a mixture of about 50 to 70 wt. % of a mineral aggregate, about 5 to 20 wt. % of asphalt, about 15 to 35 wt. % of a finely divided mineral filler, and about 0.05 to 0.5 wt. % of a synthetic organic fiber selected from the group consisting of polyester fibers, polyamide fibers, polyfluorocarbon fibers and poly(arylene sulfide) fibers.
Claim 2
Dependent Claim
68 words
A composition of matter consisting essentially of a mixture of about 50 to 70 wt. % of a mineral aggregate, about 5 to 20 wt. % of asphalt, about 15 to 35 wt. % of a finely divided mineral filler, and about 0.05 to 0.5 wt. % of a synthetic organic fiber selected from the group consisting of polyester fibers, polyamide fibers, polyfluorocarbon fibers and poly(arylene sulfide) fibers.
Claim 3
Dependent Claim
13 words
A composition in accordance with claim 1 wherein the mineral aggregate is sand.
Claim 4
Dependent Claim
15 words
A composition in accordance with claim 1 wherein said finely divided mineral filler is limestone.
Claim 5
Dependent Claim
17 words
A composition in accordance with claim 1 wherein said organic synthetic fiber is a poly(p-phenylene sulfide) fiber.
Claim 6
Dependent Claim
31 words
A composition in accordance with claim 1 wherein said synthetic organic fiber has a length of about 1 to about 15 mm and fiber weight of about 1 to 16 denier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |