US2839811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for curing concrete, said composition containing cyclized rubber and waxes
Assignee: American Marietta Co
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Filing: 1955-07-22
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Granted: 1958-06-24
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Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
- 👤 Stephen W Benedict
- 👤 Paul T Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:20
CPC Classifications
C; C08; C08L; C08L91/00; C08L91/06; C09; C09D; C09D191/00; C09D191/06; C09D191/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A COATING COMPOSITION COMPRISING FROM ABOUT 18 TO ABOUT 30 PARTS BY WEIGHT OF A COMBINATION OF WAXES COMPRISING OXIDIZED MICROCRYSTALLINE WAX HAVING A MELTING POINT OF ABOVE THAT 190*F. AND UNSAPONIFIABLE CRYSTALLINE WAX HAVING A MELTING POINT BELOW ABOUT 165*F., SAID WAXES BEING PRESENT IN A WEIGHT RATIO FROM ABOUT 2:1 TO 1:2, AND FROM ABOUT 4 TO ABOUT 15 PARTS BY WEIGHT OF A CYCILIZED NATURAL RUBBER, SAID WAXES AND CYCLIZED RUBBER BEING DISPERSED IN SUFFICIENT HYDROCARBON SOLVENT TO PARTIALLY SOLVATE THE MICROCRYSTALLINE WAX AND PRODUCE A MOBILE MIXTURE CONTAINING UP TO ABOUT 60% SOLIDS AND CAPABLE OF BEING THINNED WITH ADDITIONAL HYDROCARBON SOLVENT TO A DESIRED CONSISTENCY FOR APPLICATION TO A SURFACE TO BE COATED.
Claim 2
Dependent Claim
118 words
A COATING COMPOSITION COMPRISING FROM ABOUT 18 TO ABOUT 30 PARTS BY WEIGHT OF A COMBINATION OF WAXES COMPRISING OXIDIZED MICROCRYSTALLINE WAX HAVING A MELTING POINT OF ABOVE THAT 190*F. AND UNSAPONIFIABLE CRYSTALLINE WAX HAVING A MELTING POINT BELOW ABOUT 165*F., SAID WAXES BEING PRESENT IN A WEIGHT RATIO FROM ABOUT 2:1 TO 1:2, AND FROM ABOUT 4 TO ABOUT 15 PARTS BY WEIGHT OF A CYCILIZED NATURAL RUBBER, SAID WAXES AND CYCLIZED RUBBER BEING DISPERSED IN SUFFICIENT HYDROCARBON SOLVENT TO PARTIALLY SOLVATE THE MICROCRYSTALLINE WAX AND PRODUCE A MOBILE MIXTURE CONTAINING UP TO ABOUT 60% SOLIDS AND CAPABLE OF BEING THINNED WITH ADDITIONAL HYDROCARBON SOLVENT TO A DESIRED CONSISTENCY FOR APPLICATION TO A SURFACE TO BE COATED.
Claim 3
Dependent Claim
137 words
IN A PROCESS FOR CURING CONCRETE WHEREIN THE CONCRETE IS PLACED AND ALLOWED TO HARDEN, THE STEP WHICH COMPRISES APPLYING TO THE SURFACE OF THE FRESHLY PLACED WET CONCRETE A NON-AQUEOUS COATING COMPOSITION COMPRISING FROM ABOUT 18 TO ABOUT 30 PARTS BY WEIGHT OF A COMBINATION OF WAXES COMPRISING OXIDIZED MICROCRYSTALLINE WAX HAVING A MELTING POINT ABOVE ABOUT 190*F. AND UNSAPONIFIABLE CRYSTALLINE WAX HAVING A MELTING POINT BELOW ABOUT 165*F., SAID WAXES BEING PRESENT IN A WEIGHT RATIO OF FROM ABOUT 2:1 TO 1:2. AND FROM ABOUT 4 TO ABOUT 15 PARTS BY WEIGHT OF A CYCLIZED NATURAL RUBBER, SAID WAXES AND CYLCIZED RUBBER BEIG DISPERSED IN SUFFICIENT HYDROCARBON SOLVENT TO PARTIALLY SOLVATE THE MICROCRYSTALLINE WAX AND PRODUCE A MOBILE MIXTURE CONTAINING UP TO ABOUT 60% SOLIDS AND CAPABLE OF BEING SPREAD AS A THIN COATING FILM.
Claim 4
Dependent Claim
137 words
IN A PROCESS FOR CURING CONCRETE WHEREIN THE CONCRETE IS PLACED AND ALLOWED TO HARDEN, THE STEP WHICH COMPRISES APPLYING TO THE SURFACE OF THE FRESHLY PLACED WET CONCRETE A NON-AQUEOUS COATING COMPOSITION COMPRISING FROM ABOUT 18 TO ABOUT 30 PARTS BY WEIGHT OF A COMBINATION OF WAXES COMPRISING OXIDIZED MICROCRYSTALLINE WAX HAVING A MELTING POINT ABOVE ABOUT 190*F. AND UNSAPONIFIABLE CRYSTALLINE WAX HAVING A MELTING POINT BELOW ABOUT 165*F., SAID WAXES BEING PRESENT IN A WEIGHT RATIO OF FROM ABOUT 2:1 TO 1:2. AND FROM ABOUT 4 TO ABOUT 15 PARTS BY WEIGHT OF A CYCLIZED NATURAL RUBBER, SAID WAXES AND CYLCIZED RUBBER BEIG DISPERSED IN SUFFICIENT HYDROCARBON SOLVENT TO PARTIALLY SOLVATE THE MICROCRYSTALLINE WAX AND PRODUCE A MOBILE MIXTURE CONTAINING UP TO ABOUT 60% SOLIDS AND CAPABLE OF BEING SPREAD AS A THIN COATING FILM.
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |