US Patent 7998267 Additives for cement
Patent 7998267 was granted and assigned to Lafarge on August, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A belite-calcium sulphoaluminate-ferrite (BCSAF) cement composition including: a BCSAF clinker which clinker has the following mineralogical composition, based on the total weight of the clinker: 5 to 25%, preferably 10 to 20%, of a calcium aluminoferrite phase having the general formula C2AxF(1−X), wherein X is from 0.2 to 0.8; 15 to 35% of a calcium sulphoaluminate phase; 40 to 75% of belite (C2S); from 0.01 to 10% in total of one or more minor phases selected from calcium sulphates, alkali metal sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase and/or a vitreous phase; and an alkanolamine.
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US Patent 07998267 Additives for cement US Patent 7998267 Additives for cement
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Patent Number
0799826700
Patent Number
799826700
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079982670
Date of Patent
August 16, 2011
0Patent Application Number
129346130
Date Filed
March 24, 2009
0Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079982670
Date of Patent
August 16, 2011
0Patent Application Number
129346130
Date Filed
March 24, 2009
0Patent Primary Examiner
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US Patent 07998267 Additives for cement
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07998267
Date of patent
August 16, 2011
Patent application number
12934613
Date Filed
March 24, 2009
Patent primary examiner
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