序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 WORKABILITY OF AN AQUEOUS FORMULATION WITH A HYDRAULIC BINDER BASE USING A COMBINATION OF COMB-BRANCHED POLYMERS US12630089 2009-12-03 US20100137477A1 2010-06-03 David Platel; Jean Moro; Olivier Guerret
The invention pertains to improving the workability of an aqueous formulation with a hydraulic binder base using a combination between at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophilic group, and at least one comb-branched copolymer having a (meth)acrylic skeleton, onto which are grafted side-chains terminated by a hydrophobic group.
82 Redispersible powder and its aqueous dispersion, preparation, process and use US11955342 2007-12-12 US07674860B2 2010-03-09 Hongli Willimann; Robert Koelliker
The invention relates to a redispersible powder obtainable by (co)polymerization, using a polymer with cationic functionality in an aqueous medium, optionally accompanied by the use of conventional additives, the polymer with cationic functionality being obtained by (co)polymerization in an aqueous medium of olefinically unsaturated (co)monomers, wherein at least one (co)monomer has a cationic functionality, further (co)monomers are added and polymerization takes place in the presence of suitable initiators, and by drying the aqueous dispersion obtained, the (co)polymerizate having one or more reactive groups. According to another embodiment, the polymer with cationic functionality is formed in situ in the presence of a seed. According to another embodiment, the process is controlled in such a way that a (co)polymerizate particle with heterogeneous morphology is formed. The invention also relates to the aqueous dispersions, a process for the preparation of the redispersible powder and the use thereof.
83 ADDITION OF NONIONIC SURFACTANTS TO WATER SOLUBLE BLOCK COPOLYMERS TO INCREASE THE STABILITY OF THE COPOLYMER IN AQUEOUS SOLUTIONS CONTAINING SALT AND/OR SURFACTANTS US12253934 2008-10-17 US20090107681A1 2009-04-30 Lawrence Alan HOUGH; Gilda Maria Lizarraga; Herve Adam; Jean-Christophe Castaing; Subramanian Kesavan
An aqueous fluid useful for the recovery of crude oil from a subterranean formation, which includes a composition including a mixture of water, a water soluble block copolymer, an inorganic salt and at least one member of the group of a nonionic surfactant having an HLB of less than 12, and methods for using same.
84 Novel Hydrodispersible Waterproofing Agent, the Preparation Thereof, and the Use of the Same in the Field of Construction Especially in Mineral Binding Agent Compositions US11597308 2005-05-24 US20080319106A1 2008-12-25 Jean-Michel Mercier; Daniel Joubert; Martial Deruelle; Pascal Taquet
The invention relates to a novel hydrodispersible waterproofing agent based on at least one water-insoluble and water-immiscible waterproofing agent which has previously been emulsified in a hydrosoluble amphiphilic copolymer composition. The invention also relates to the solid forms of said composition obtained by drying, and to the use thereof in a water-insoluble film-forming polymer composition or in a mineral binding agent composition for applications in the field of construction.
85 Hydraulic Binder and a Chromate Reducer and Use Thereof US10596333 2004-12-10 US20080282939A1 2008-11-20 Alexander Kehrmann
The invention relates to a hydraulic binder whose main constituent is cement to which a mixture comprised of a chromate reducer and a carrier material is added for chromate reduction. The chromate reducer contains two iron(II) sulfate components, with the first component is made of filter salt from the titanium dioxide production, to which a mineral acid regulator, particularly ground limestone, is added. The second component is moist copperas. The hydraulic binder according to the invention is cost-effective and has chromate contents that are considerably lower than the legally permitted limit. The invention also relates to the use of a mixture of filter salt and copperas as a chromate reducer for reducing water-soluble chromate contents in cement.
86 Cement compositions useful in oil and gas wells US11598382 2006-11-13 US07442249B2 2008-10-28 T. Dan Mueller
Cement compositions containing low reactivity materials are disclosed. The compositions are useful in conditions involving high temperatures, high pressures, and tectonic forces such as oil and gas wells. The cement compositions display increased compressive strength, flexural strength, and tensile strength. Fractures appear to occur in a non-linear fashion between the Interfacial Transition Zone (ITZ) of the particles, rather than in a straight line such as those observed in conventional cement materials.
87 Redispersible powder and its aqueous dispersion, preparation, process and use US11955342 2007-12-12 US20080090980A1 2008-04-17 Hongli Willimann; Robert Koelliker
The invention relates to a redispersible powder obtainable by (co)polymerization, using a polymer with cationic functionality in an aqueous medium, optionally accompanied by the use of conventional additives, the polymer with cationic functionality being obtained by (co)polymerization in an aqueous medium of olefinically unsaturated (co)monomers, wherein at least one (co)monomer has a cationic functionality, further (co)monomers are added and polymerization takes place in the presence of suitable initiators, and by drying the aqueous dispersion obtained, the (co)polymerizate having one or more reactive groups. According to another embodiment, the polymer with cationic functionality is formed in situ in the presence of a seed. According to another embodiment, the process is controlled in such a way that a (co)polymerizate particle with heterogeneous morphology is formed. The invention also relates to the aqueous dispersions, a process for the preparation of the redispersible powder and the use thereof.
88 Cement compositions comprising particulate carboxylated elastomers and associated methods US11321113 2005-12-29 US20070151730A1 2007-07-05 B. Reddy; Krishna Ravi
Methods of cementing comprising: providing a cement composition comprising water, a cement, and a particulate elastomer comprising a carboxy group; and allowing the cement composition to set. Cement compositions comprising water, a cement, and a particulate elastomer comprising a carboxy group.
89 Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions US10872997 2004-06-21 US07216707B2 2007-05-15 Larry S. Eoff; Eldon D. Dalrymple; B. Raghava Reddy
The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophilically modified water-soluble polymer; placing the cement composition into the subterranean formation; and allowing the cement composition to set therein. In certain embodiments, the water-soluble hydrophobically modified polymer or the hydrophilically modified water-soluble polymer may include a polymer backbone that comprises polar heteroatoms. In another embodiment, the water-soluble hydrophobically modified polymer may be a reaction product of a hydrophobic compound with a polyvinylamine, a poly(vinylamine/vinyl alcohol), or an alkyl acrylate polymer.
90 Cement compositions useful in oil and gas wells US11598382 2006-11-13 US20070056477A1 2007-03-15 Dan Mueller
Cement compositions containing low reactivity materials are disclosed. The compositions are useful in conditions involving high temperatures, high pressures, and tectonic forces such as oil and gas wells. The cement compositions display increased compressive strength, flexural strength, and tensile strength. Fractures appear to occur in a non-linear fashion between the Interfacial Transition Zone (ITZ) of the particles, rather than in a straight line such as those observed in conventional cement materials.
91 Cement composition, its use for the production of a self-leveling liquid casting, and a casting thus obtained US10914229 2004-08-10 US07166159B2 2007-01-23 Pierre Colombet; Jean Ambroise; Jean-Pierre Grelaud; Michel Pasquier
A cement composition for liquid casting, based on a binder comprising Portland cement and additives comprising at least a fluidizer and a combination of a thickening agent acting by steric exclusion and a gelling thickening agent. The composition can also include a surface active agent to regulate the quantity of entrained air. Mixed with water and an aggregate, it permits obtaining, in a single casting, a self-leveling casting of a high thickness (equal to at least 6 cm) and of low density (about 1.6 to 1.9).
92 Cement compositions useful in oil and gas wells US10605946 2003-11-07 US07156173B2 2007-01-02 Dan T. Mueller
Cement compositions containing low reactivity materials are disclosed. The compositions are useful in conditions involving high temperatures, high pressures, and tectonic forces such as oil and gas wells. The cement compositions display increased compressive strength, flexural strength, and tensile strength. Fractures appear to occur in a non-linear fashion between the Interfacial Transition Zone (ITZ) of the particles, rather than in a straight line such as those observed in conventional cement materials.
93 CEMENT COMPOSITIONS USEFUL IN OIL AND GAS WELLS US10605946 2003-11-07 US20040134657A1 2004-07-15 Dan T. MUELLER
Cement compositions containing low reactivity materials are disclosed. The compositions are useful in conditions involving high temperatures, high pressures, and tectonic forces such as oil and gas wells. The cement compositions display increased compressive strength, flexural strength, and tensile strength. Fractures appear to occur in a non-linear fashion between the Interfacial Transition Zone (ITZ) of the particles, rather than in a straight line such as those observed in conventional cement materials.
94 Use of polymers in gypsum wallboard US09506006 2000-02-17 US06492450B1 2002-12-10 Oscar Hsien-Hsiang Hsu
A composition useful as gypsum wallboard and a method for protecting gypsum wallboard against water are disclosed. The composition and the method utilize a polymer containing a hydrophobically modified monomer to provide water resistance.
95 Lightened cement slurries US09970775 2001-10-05 US20020062764A1 2002-05-30 Annie Audibert; Christine Noik; Alain Rivereau
The present invention relates to the cementation of a well, notably an oil well, by means of a low-density grout. The slurry comprises cement, at least one mineral filler, water, a determined amount of an acrylic type resin and possibly a preferably hydrophilic/hydrophobic dispersing type polymer.
96 Process and waste pit liner for improved hydrophobic waste storage US662388 1991-02-26 US5114275A 1992-05-19 Philip W. West; William H. Daly
A process for improved hydrophobic waste storage is described wherein a latex comprising a preformed, high molecular weight polymer having a high affinity for hydrophobic liquids, is sprayed on the waste prior to admixing an inorganic matrix material. Alternately, a liner for use in a waste pit which is to contain hydrophobic waste liquids or concentrated aqueous salt solutions is produced in situ by blending and compacting a latex comprising a hydrophobic polymer and clay onto the surface of the waste pit.
97 Refractory castables with hydrophobic aggregates US14279536 2014-05-16 US10029947B2 2018-07-24 Kenneth J. Moody; Bryan K. Doerr
Hydrophobic aggregates for use in refractory castables and gunning mixtures and methods of their preparation. The aggregates here are formed by crushing insulating fire brick and coating the resulting particles with a hydrophobic component. The hydrophobic component may be a polydimethylsiloxane having a terminal silanol group. As a result of the coating process, the coated aggregate has very low levels of alkalis. The aggregates may be used to form refractory castables that do not undergo substantial alkaline hydrolysis due to the reduced levels of alkalis. The castables made from these aggregates display superior physical properties, including lower water content, lower permanent linear change, high strength, and superior thermal conductivity/insulation properties, while at the same time possessing lower density and requiring less water to be used during castable formation. These improved properties also are observed in gunning mixtures formed from these aggregates.
98 Joint compounds US15126216 2015-03-12 US09902651B2 2018-02-27 Giampietro Margheritis; Barbara Biasotti; Barbara Gatti; Roberto Coarezza; Valentina Langella; Giovanni Floridi; Giuseppe Li Bassi
The present invention relates to ready-to-use drying joint compounds that exhibit improved performance characteristics due to the presence of a hydrophobically modified polygalactomannan.
99 CEMENT-BASED PHOTOCATALYTIC COMPOSITION, AND USE THEREOF FOR OBTAINING WATER PAINTS, IN PARTICULAR FOR OUTDOOR APPLICATIONS US15129015 2015-03-25 US20170106350A1 2017-04-20 Massimo BERNARDONI
Cement-based photocatalytic composition, which comprises: (a) at least one cement binder; (b) at least one photocatalyst; (c) at least one cellulose ether; (d) at least one fluidizing agent; (e) at least one first calcareous filler in the form of particles of which at least 95% by weight has a size not greater than 100 μm; (f) at least one second calcareous filler in the form of particles of which at least 95% by weight has a size not greater than 30 μm; (g) at least one silane supported on an inorganic support in the form of powder. Such composition can be employed as a water paint for obtaining wall coatings with very low thickness, in particular the outdoor applications, which ensure a high and stable photocatalytic effect over time even with relatively low quantities of photocatalyst, generally lower than 10% by weight, with optimal results in terms of uniformity of the coating and resistance of the same to weathering agents.
100 Refractory Castables with Hydrophobic Aggregates US15248925 2016-08-26 US20160362340A1 2016-12-15 Kenneth J. Moody; Bryan K. Doerr
Hydrophobic aggregates for use in refractory castables and gunning mixtures and methods of their preparation. The aggregates here are formed by crushing insulating fire brick and coating the resulting particles with a hydrophobic component. The hydrophobic component may be a polydimethylsiloxane having a terminal silanol group. As a result of the coating process, the coated aggregate has very low levels of alkalis. The aggregates may be used to form refractory castables that do not undergo substantial alkaline hydrolysis due to the reduced levels of alkalis. The castables made from these aggregates display superior physical properties, including lower water content, lower permanent linear change, high strength, and superior thermal conductivity/insulation properties, while at the same time possessing lower density and requiring less water to be used during castable formation. These improved properties also are observed in gunning mixtures formed from these aggregates.
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