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公开(公告)号：EP2552850A1
公开(公告)日：2013-02-06
申请号：EP11719311.0
申请日：2011-03-29
申请人： Lafarge
摘要： Mixture for a hydraulic composition, comprising: an inerting agent for at least partly neutralizing the deleterious effects of impurities of the hydraulic composition on the workability of the hydraulic composition; a first superplasticizer that differs from the inerting agent; and a second superplasticizer that differs from the first superplasticizer and from the inerting agent and has a maximum fluidizing action at 20°C that occurs after the maximum fluidizing action at 20°C of the first superplasticizer.
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公开(公告)号：EP2523923A1
公开(公告)日：2012-11-21
申请号：EP11705218.3
申请日：2011-01-10
申请人： Lafarge
IPC分类号： C04B28/02
CPC分类号： C04B28/02 , C04B2111/1093 , Y02W30/92 , C04B18/08 , C04B24/2688 , C04B2103/006
摘要： The present invention relates to a treatment method for manufacturing a hydraulic composition having entrained air, said hydraulic composition including at least one additive and a component including carbon materials. The method includes: obtaining a value representing the adsorption of molecules sought by the carbon materials; and manufacturing the hydraulic composition or treating said component with an amount of additive dependent on said value.
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公开(公告)号：EP2462071A1
公开(公告)日：2012-06-13
申请号：EP10762963.6
申请日：2010-08-02
申请人： Lafarge
CPC分类号： C04B24/003 , C04B24/243 , C04B24/2647 , C04B28/02 , C04B40/0039 , C04B2103/006 , C04B24/163 , C04B2103/302
摘要： The present invention relates to a hydraulic composition including: at least one hydraulic binder; at least one water-reducing additive including at least one phosphonic amino-alkylene grouping; at least one second water-reducing additive including at least one comb polymer, the weight concentration in terms of dry extract being between 25% and 100% of the weight concentration in terms of dry extract of the first additive. The present invention also relates to concrete including such a hydraulic composition and to a water-reducing mixture for such a hydraulic composition.
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公开(公告)号：EP2414460A1
公开(公告)日：2012-02-08
申请号：EP10723186.2
申请日：2010-04-01
申请人： Lafarge
发明人： BROCAS, Stéphane , ECH, Mohsen , RICHARD, Nicolas , VILLARD, Emmanuel , BAAJ, Hassan , TOUBEAU, Philippe
CPC分类号： C04B20/1037 , C04B26/26 , C04B2111/0075 , C08L95/00 , C04B20/0076 , C08L2666/04
摘要： The present invention relates to a method for preparing a hydrocarbon composition including the following steps: (i) producing a mixture of granulates with a maximum diameter of less than or equal to 30mm and in a quantity of less than or equal to 0.8g per square meter of specific surface developed by the granulates of at least one liquid cationic polymer laden with cations at a density greater than or equal to 0.5 meq/g and an intrinsic viscosity of 0.01 to 0.8 dl/g; and (ii) contacting the mixture produced in step (i) with at least one hydrocarbon binder. A hydrocarbon composition including at least one specific cationic polymer and the use of at least one specific cationic polymer for the surface treatment of granulates for preparing a hydrocarbon composition are the other two aims of the present invention.
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公开(公告)号：EP1799624A2
公开(公告)日：2007-06-27
申请号：EP05802965.3
申请日：2005-09-21
申请人： LAFARGE
发明人： JACQUET, Alain , VILLARD, Emmanuel , WATT, Olivier
IPC分类号： C04B24/30
CPC分类号： C08G73/0226 , C04B14/06 , C04B20/023 , C04B24/2652 , C04B24/30 , C04B2201/10 , C04B2201/20 , C08G12/16 , C04B20/1018
摘要： The invention concerns a method for inerting clays in sand intended for preparing hydraulic compositions, comprising a step which consists in adding to the composition or one of its constituents a cationic polymer having a cationic charge density more than 0.5 meq/g and an intrinsic viscosity less than 1 dg/l.
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6.发明公开
公开(公告)号：EP2763942A1
公开(公告)日：2014-08-13
申请号：EP12766687.3
申请日：2012-10-02
申请人： Lafarge
发明人： DUVEAU, Vincent , THOUILLEUX, Philippe , JACQUET, Alain , VILLARD, Emmanuel , GEORGES, Sébastien
IPC分类号： C04B24/26
CPC分类号： B28C5/003 , B65D33/00 , C04B24/00 , C04B24/2623 , C04B2103/0077
摘要： The present invention relates to the use of a bag to provide an admixture for a hydraulic composition, wherein a wall of the bag comprises a layer, said layer comprising a water-soluble polymer, and wherein an admixture is present in the wall of the bag.
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公开(公告)号：EP2485990A1
公开(公告)日：2012-08-15
申请号：EP10777051.3
申请日：2010-10-04
申请人： Lafarge
发明人： VILLARD, Emmanuel , ECH, Mohsen , RICHARD, Nicolas , BAAJ, Hassan
CPC分类号： C08J3/2056 , C04B26/26 , C08J2395/00 , C08L33/02 , C08L95/00 , C04B14/06 , C04B24/2641 , C04B40/0028 , C04B2103/0051 , C08L2666/04
摘要： The invention relates to a method for producing a hydrocarbon-based composition, said method comprising steps of mixing a heated hydrocarbon-based binder, aggregates and at least one superabsorbent polymer that has absorbed water.
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公开(公告)号：EP2414460B1
公开(公告)日：2013-01-09
申请号：EP10723186.2
申请日：2010-04-01
申请人： Lafarge
发明人： BROCAS, Stéphane , ECH, Mohsen , RICHARD, Nicolas , VILLARD, Emmanuel , BAAJ, Hassan , TOUBEAU, Philippe
CPC分类号： C04B20/1037 , C04B26/26 , C04B2111/0075 , C08L95/00 , C04B20/0076 , C08L2666/04
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公开(公告)号：EP2523924A1
公开(公告)日：2012-11-21
申请号：EP11706619.1
申请日：2011-01-10
申请人： Lafarge
CPC分类号： C04B28/02 , C04B24/2688 , C04B2111/1093 , C04B2103/0059 , C04B2103/304
摘要： The present invention relates to the use of carbon materials as an inertant for treating at least one component of a hydraulic composition including at least one air-entraining agent. Said component includes the carbon materials of an additive including at least one polymer including at least one chain having hydrophobic end groups and a hydrophilic intermediate group between the end groups. The additive is suitable for at least partially neutralizing the carbon materials.
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公开(公告)号：EP1838643A2
公开(公告)日：2007-10-03
申请号：EP05802926.5
申请日：2005-09-21
申请人： LAFARGE
发明人： JACQUET, Alain , VILLARD, Emmanuel , WATT, Olivier
IPC分类号： C04B24/30
CPC分类号： C04B20/1018 , C04B14/06 , C04B20/02 , C04B20/023 , C04B24/2652 , C04B24/30 , C04B2201/10 , C04B2201/20 , C08G12/16 , C08G73/0226
摘要： The invention concerns a composition useful for inerting clays in hydraulic compositions, comprising at least 50 wt. % of a cationic polymer having a cationic charge density more than 0.5 meq/g and an intrinsic viscosity less than 1dl/g, as active substance.
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