Patent US2918940A successfully refreshed from Google Patents.
US2918940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphaltic coating composition and method of application
Assignee: Phillips Petroleum Co
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Filing: 1957-10-28
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Granted: 1959-12-29
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Expires: 1977-10-28
Abstract
No abstract record available.
Inventors
- 👤 Donald E Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:20
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; B; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/08; B29C63/10; B29C63/105; C; C09; C09D; C09D195/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A COMPOSITION SUITABLE FOR COATING PIPE COMPRISING FROM 100 TO 300 PARTS BY WEIGHT OF MINERAL FILLER IN ADMIXTURE WITH 100 PARTS BY WEIGHT OF ASPHALTIC MATRIX COMPRISING FROM 50 TO 85 WEIGHT PERCENT ASPHALT, FROM 10 TO 30 WEIGHT PERCENT OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC POLYMERS OF OPEN CHAIN CONJUGATED DIENES HAVING FROM 4 TO 8 CARBON ATOMS PER MOLECULE, AND SYNTHETIC COPOLYMERS OF SAID CONJUGATED DIENES WITH A MINOR AMOUNT OF COPOLYMERIZABLE MONOMER CONTAINING A CH2-C GROUP, AND FROM 5 TO 30 WEIGHT PERCENT OF CHLORINATED POLYETHYLENE, CHARACTERIZED BEFORE CHLORINATION BY A CRYSTALLINITY OF AT LEAST 70 PERCENT AT 25* C., A DENSITY AT 15* C. OF AT LEAST 0.94 GRAMS PER CUBIC CENTIMETER, AND A SOFTENING TEMPERATURE ABOVE ABOUT 240* F., SAID CHLORINATED POLYETHYLENE CONTAINING FROM ABOUT 25 TO 30 WEIGHT PERCENT COMBINED CHLORINE.
Claim 2
Dependent Claim
144 words
A COMPOSITION SUITABLE FOR COATING PIPE COMPRISING FROM 100 TO 300 PARTS BY WEIGHT OF MINERAL FILLER IN ADMIXTURE WITH 100 PARTS BY WEIGHT OF ASPHALTIC MATRIX COMPRISING FROM 50 TO 85 WEIGHT PERCENT ASPHALT, FROM 10 TO 30 WEIGHT PERCENT OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC POLYMERS OF OPEN CHAIN CONJUGATED DIENES HAVING FROM 4 TO 8 CARBON ATOMS PER MOLECULE, AND SYNTHETIC COPOLYMERS OF SAID CONJUGATED DIENES WITH A MINOR AMOUNT OF COPOLYMERIZABLE MONOMER CONTAINING A CH2-C GROUP, AND FROM 5 TO 30 WEIGHT PERCENT OF CHLORINATED POLYETHYLENE, CHARACTERIZED BEFORE CHLORINATION BY A CRYSTALLINITY OF AT LEAST 70 PERCENT AT 25* C., A DENSITY AT 15* C. OF AT LEAST 0.94 GRAMS PER CUBIC CENTIMETER, AND A SOFTENING TEMPERATURE ABOVE ABOUT 240* F., SAID CHLORINATED POLYETHYLENE CONTAINING FROM ABOUT 25 TO 30 WEIGHT PERCENT COMBINED CHLORINE.
Claim 3
Dependent Claim
81 words
AS AN ARTICLE OF MANUFACTURE A COATED PIPE HAVING HIGH CORROSION RESISTANCE COMPRISING, IN COMBINATION, A LENGTH OF METAL PIPE, A FILM OF HIGHLY CRYSTALLINE POLYETHYLENE COVERING THE OUTER SURFACE OF SAID PIPE AND AN ASPHALIC COATING COVERING THE OUTER SURFACE OF SAID FILM, SAID COATING COMPRISING MINERAL FILLER IN ADMIXTURE WITH A MATRIX COMPRISING ASPHALT, RUBBER, AND AT LEAST ONE OF THE MATERIALS SELECTED FROM THE GROUP CONSISTING OF HIGHLY CRYSTALLINE OLEFIN POLYMERS AND HALOGENATED PRODUCTS OF SDAID OLEFIN POLYMERS.
Claim 4
Dependent Claim
81 words
AS AN ARTICLE OF MANUFACTURE A COATED PIPE HAVING HIGH CORROSION RESISTANCE COMPRISING, IN COMBINATION, A LENGTH OF METAL PIPE, A FILM OF HIGHLY CRYSTALLINE POLYETHYLENE COVERING THE OUTER SURFACE OF SAID PIPE AND AN ASPHALIC COATING COVERING THE OUTER SURFACE OF SAID FILM, SAID COATING COMPRISING MINERAL FILLER IN ADMIXTURE WITH A MATRIX COMPRISING ASPHALT, RUBBER, AND AT LEAST ONE OF THE MATERIALS SELECTED FROM THE GROUP CONSISTING OF HIGHLY CRYSTALLINE OLEFIN POLYMERS AND HALOGENATED PRODUCTS OF SDAID OLEFIN POLYMERS.
Claim 5
Independent Claim
93 words
A METHOD OF APPLYING A PROTECTIVE COVERING TO THE EXTERIOR OF PIPE WHICH COMPRISES CLEANING THE SURFACE OF SAID PIPE, WRAPPING SAID PIPE WITH A LAYER OF HIGHLY CRYSTALLINE POLYETHYLENE TAPE, EXTRUSION COATING THE WRAPPED PIPE WITH AN ASPHALIC COMPOSITION COMPRISING MINERAL FILLER IN ADMIXTURE WITH A MATRIX COMPRISING ASPHALT, RUBBER, AND AT LEAST ONE OF THE MATERIALS SELECTED FROM THE GROUP CONSISTING OF GHGHLY CRYSTALLINE OLEFIN POLYMER AND HALOGENATED PRODUCTS OF SAID OLEFIN POLYMERS, COOLING SAID COMPOSITION, AND COMPACTING SAID COMPOSITION TO FORM A DENSE COATING OF UNIFORM THICKNESS ON SAID PIPE.
Claim 6
Independent Claim
93 words
A METHOD OF APPLYING A PROTECTIVE COVERING TO THE EXTERIOR OF PIPE WHICH COMPRISES CLEANING THE SURFACE OF SAID PIPE, WRAPPING SAID PIPE WITH A LAYER OF HIGHLY CRYSTALLINE POLYETHYLENE TAPE, EXTRUSION COATING THE WRAPPED PIPE WITH AN ASPHALIC COMPOSITION COMPRISING MINERAL FILLER IN ADMIXTURE WITH A MATRIX COMPRISING ASPHALT, RUBBER, AND AT LEAST ONE OF THE MATERIALS SELECTED FROM THE GROUP CONSISTING OF GHGHLY CRYSTALLINE OLEFIN POLYMER AND HALOGENATED PRODUCTS OF SAID OLEFIN POLYMERS, COOLING SAID COMPOSITION, AND COMPACTING SAID COMPOSITION TO FORM A DENSE COATING OF UNIFORM THICKNESS ON SAID PIPE.
References Cited (Backward Citations)
US2475699A
Cited
US2554461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |