Patent US3105771A successfully refreshed from Google Patents.
US3105771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfacing compositions comprising a mixture of a polyepoxide, a polyamide, and a petroleum derived bituminous material
Assignee: Shell USA Inc
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Filing: 1958-04-28
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Granted: 1963-10-01
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Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Warren C Simpson
- 👤 Harry J Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
C; C08; C08L; C08L63/00; C08L95/00; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR COATING SURFACES TO IMPROVE THEIR WEAR, SOLVENT RESISTANCE AND SKID RESISTANCE WHICH COMPRISES APPLYING THERETO A LAYER OF A MIXTURE COMPRISING (1) A POLYEPOXIDE HAVING MORE THAN ONE VIC-EPOXY GROUP, (2) AN AMINO HYDROGEN CONTAINING POLYAMIDE OF A POLYBASIC ACID HAVING AT LEAST SEVEN CARBON ATOMS BETWEEN THE ACIDIC GROUPS AND AN ALIPHATIC POLYAMINE, AND (3) A PETROLEUM DERIVED BITUMINOUS MATERIAL, APPLYING SMALL INERT PARTICLES OVER THE TOP OF THE LAYER OF COATING MATERIAL AND ALLOWING THE MIXTURE TO SET HARD, THE AMOUNT OF THE POLYAMIDE MAKING UP FROM .8 TO 4 EQUIVALENTS PER EQUIALENT OF POLYEPOXIDE, AND THE AMOUNT OF THE BITUMINOUS MATERIAL MAKING UP FROM 15% TO 85% BY WEIGHT OF THE COMBINED MIXTURE OF POLYEPOXIDE AND POLYAMIDE.
Claim 2
Dependent Claim
123 words
A PROCESS FOR COATING SURFACES TO IMPROVE THEIR WEAR, SOLVENT RESISTANCE AND SKID RESISTANCE WHICH COMPRISES APPLYING THERETO A LAYER OF A MIXTURE COMPRISING (1) A POLYEPOXIDE HAVING MORE THAN ONE VIC-EPOXY GROUP, (2) AN AMINO HYDROGEN CONTAINING POLYAMIDE OF A POLYBASIC ACID HAVING AT LEAST SEVEN CARBON ATOMS BETWEEN THE ACIDIC GROUPS AND AN ALIPHATIC POLYAMINE, AND (3) A PETROLEUM DERIVED BITUMINOUS MATERIAL, APPLYING SMALL INERT PARTICLES OVER THE TOP OF THE LAYER OF COATING MATERIAL AND ALLOWING THE MIXTURE TO SET HARD, THE AMOUNT OF THE POLYAMIDE MAKING UP FROM .8 TO 4 EQUIVALENTS PER EQUIALENT OF POLYEPOXIDE, AND THE AMOUNT OF THE BITUMINOUS MATERIAL MAKING UP FROM 15% TO 85% BY WEIGHT OF THE COMBINED MIXTURE OF POLYEPOXIDE AND POLYAMIDE.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |