US3033088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a coal product, a polyepoxide and abrasive particles and process for treating surfaces therewith
Assignee: Shell USA Inc
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Filing: 1956-08-20
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Granted: 1962-05-08
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Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Clifford V Wittenwyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:56
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A ROAD SURFACING COMPOSITION COMPRISING A PRODUCT DERIVED FROM COAL OF THE RESIDUAL GROUP CONSISTING OF COAL TARS, REFINED COAL TARS AND COAL TAR PITCHES HAVING A SOFTENING POINT BELOW 190*F. AND HAVING A SOLUBILITY IN CARBON DISULFIDE OF AT LEAST 50%, A POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY GROUP, THE COAL PRODUCT AND POLYEPOXIDE BEING IN A WEIGHT RATIO OF 15:1 TO 1:15, AND AT LEAST 50% BY WEIGHT OF THE COMBINED COAL PRODUCTPOLYEPOXIDE MIXTURE OF SMALL ABRASIVE INERT PARTICLES.
Claim 2
Dependent Claim
82 words
A ROAD SURFACING COMPOSITION COMPRISING A PRODUCT DERIVED FROM COAL OF THE RESIDUAL GROUP CONSISTING OF COAL TARS, REFINED COAL TARS AND COAL TAR PITCHES HAVING A SOFTENING POINT BELOW 190*F. AND HAVING A SOLUBILITY IN CARBON DISULFIDE OF AT LEAST 50%, A POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY GROUP, THE COAL PRODUCT AND POLYEPOXIDE BEING IN A WEIGHT RATIO OF 15:1 TO 1:15, AND AT LEAST 50% BY WEIGHT OF THE COMBINED COAL PRODUCTPOLYEPOXIDE MIXTURE OF SMALL ABRASIVE INERT PARTICLES.
Claim 3
Dependent Claim
130 words
A PROCESS FOR TREATING SURFACES TO RENDER THEM NON-SKID WHICH COMPRISES APPLYING TO THE SURFACE AT A TEMPERATURE BETWEEN 20*C. AND 150*C. A COMPOSITION COMPRISING A MIXTURE OF A PRODUCT DERIVED FROM COAL OF THE RESIDUAL GROUP CONSISTING OF COAL TARS, REFINED COAL TARS AND COAL TAR PITCHES HAVING A SOFTENING POINT BELOW 190* F. AND HAVING A SOLUBILITY IN CARBON DISULFIDE OF AT LEAST 50%, A LIQUID POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY GROUP, THE PRODUCT AND POLYEPOXIDE BEING PRESENT IN A WEIGHT RATIO 15:1 TO 1:15, AND AN EPOXY CURING AGENT AND THEN APPLYING TO THE LAYER OF THE COMPOSITION SMALL ABRASIVE INERT SHARP PARTICLES IN AN AMOUNT OF 1 TO 6 TIMES THE WEIGHT OF THE COAL PRODUCT AND POLYEPOXIDE, AND CURING THE MIXTURE TO HARDNESS.
Claim 4
Dependent Claim
130 words
A PROCESS FOR TREATING SURFACES TO RENDER THEM NON-SKID WHICH COMPRISES APPLYING TO THE SURFACE AT A TEMPERATURE BETWEEN 20*C. AND 150*C. A COMPOSITION COMPRISING A MIXTURE OF A PRODUCT DERIVED FROM COAL OF THE RESIDUAL GROUP CONSISTING OF COAL TARS, REFINED COAL TARS AND COAL TAR PITCHES HAVING A SOFTENING POINT BELOW 190* F. AND HAVING A SOLUBILITY IN CARBON DISULFIDE OF AT LEAST 50%, A LIQUID POLYEPOXIDE HAVING MORE THAN ONE VICINAL EPOXY GROUP, THE PRODUCT AND POLYEPOXIDE BEING PRESENT IN A WEIGHT RATIO 15:1 TO 1:15, AND AN EPOXY CURING AGENT AND THEN APPLYING TO THE LAYER OF THE COMPOSITION SMALL ABRASIVE INERT SHARP PARTICLES IN AN AMOUNT OF 1 TO 6 TIMES THE WEIGHT OF THE COAL PRODUCT AND POLYEPOXIDE, AND CURING THE MIXTURE TO HARDNESS.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |