Retarded set cement and slurries thereof
First Claim
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1. A CEMENT CAPABLE OF FORMING A FLUID SLURRY WHEN MIXED WITH WATER, SAID CEMENT COMPRISING A HYDRAULIC CEMENT MIXED WITH A MINOR PROPORTION OF AT LEAST ONE OF THE GROUP CONSISTING OF ALKYL HYDROXYALKYL CELLULOSE MIXED ETHERS WHERE THE ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS AND THE HYDROXYALKYL GROUP CONTAINS 2 TO 4 CARBON ATOMS.
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7 Claims
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1. A CEMENT CAPABLE OF FORMING A FLUID SLURRY WHEN MIXED WITH WATER, SAID CEMENT COMPRISING A HYDRAULIC CEMENT MIXED WITH A MINOR PROPORTION OF AT LEAST ONE OF THE GROUP CONSISTING OF ALKYL HYDROXYALKYL CELLULOSE MIXED ETHERS WHERE THE ALKYL GROUP CONTAINS 1 TO 4 CARBON ATOMS AND THE HYDROXYALKYL GROUP CONTAINS 2 TO 4 CARBON ATOMS.
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7. A HYDRAULIC CEMENT SLURRY COMPRISING A HYDRAULIC CEMENT, WATER AND A MINOR PROPORTION OF METHYL HYDROXYETHYL CELLULOSE MIXED ETHER.
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Current AssigneeHenry Kaveler Herman
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Original AssigneeHenry Kaveler Herman
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InventorsHENRY KAVELER HERMAN
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Application NumberUS03/135,313Time in Patent Office1,155 DaysField of SearchUS Class Current106/720CPC Class CodesC04B 24/383 Cellulose or derivatives th...C09K 8/46 containing inorganic binder...
