Patents Assigned to SNF S.A.S.
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Patent number: 9994483Abstract: The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.Type: GrantFiled: November 7, 2017Date of Patent: June 12, 2018Assignees: GCP Applied Technologies Inc., SNF S.A.S.Inventors: Lawrence L. Kuo, Cedrick Favero, Christophe Roux, Nathan A. Tregger
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Patent number: 9950953Abstract: The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.Type: GrantFiled: May 11, 2012Date of Patent: April 24, 2018Assignees: GCP Applied Technologies Inc., SNF S.A.S.Inventors: Lawrence L. Kuo, Cedrick Favero, Christophe Roux, Nathan A. Tregger
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Publication number: 20150065614Abstract: The present invention provides methods and compositions for treating clay-bearing aggregates, particularly those used for construction purposes, whereby inclusion of fines is maximized due to minimization of clay washing which tends to remove such fines, and whereby performance of the aggregate-containing construction material is enhanced. Exemplary methods comprise introducing to clay a water-soluble, functionalized polyamine comprising a water-soluble polyamine formed by reacting an amine compound with an epoxy compound, the polyamine thus reacted being functionalized through the use of certain halide, sulfate, or epoxy compounds.Type: ApplicationFiled: May 11, 2012Publication date: March 5, 2015Applicants: SNF S.A.S., W R GRACE & CO.-CONN.Inventors: Lawrence L. Kuo, Cedrick Favero, Christophe Roux, Nathan A. Tregger
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Patent number: 8771633Abstract: A composition based on lime comprising at least one mineral agent consisting of slaked lime in the solid phase and of an organic polymer incorporated into said solid phase, a method for its making and the use for its application in the treatment of water and sludge, in particular for conditioning sludge before dewatering.Type: GrantFiled: June 29, 2010Date of Patent: July 8, 2014Assignees: S.A. Lhoist Recherche et Developpement, SNF S.A.S.Inventors: Laurent Biotteau, Gaetan Blandin
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Patent number: 8562838Abstract: Provided is a method for treating sludge from the mining or mineral industry, including before above-ground spreading, contacting the sludge with a flocculating agent that is a water-soluble, organic polymer having a molecular weight of from 5,000,000 to 25,000,000 g/mol and an anionicity of from 10 to 40 mol %, to produce contacted sludge, wherein the water-soluble organic polymer includes at least one anionic monomer having a carboxylic function or having a sulfonic acid function, at least one non-ionic monomer, and optionally one or more cationic monomers, where the flocculating agent is branched, and has from 0.02 to 2 mol % hydrophobic monomers.Type: GrantFiled: October 20, 2009Date of Patent: October 22, 2013Assignee: SNF S.A.S.Inventors: Frédéric Poncet, Nicolas Gaillard
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Patent number: 8007678Abstract: Temporary sizing agent for natural and/or artificial individualized textile fibers comprises a water-soluble homopolymer or copolymer of at least one acrylamide monomer having a molecular weight not less than one million, advantageously more than three millions.Type: GrantFiled: December 16, 2005Date of Patent: August 30, 2011Assignees: EMZ Trek, SNF S.A.S.Inventors: Milton Faria, Charles Cordier
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Patent number: 7931728Abstract: A fertilizer granule contains, as a binder, at least one organic polymer. The organic polymer is a hydrosoluble polymer that is at least partially cationic.Type: GrantFiled: July 20, 2005Date of Patent: April 26, 2011Assignee: SNF S.A.S.Inventors: Jacques Brosse, Stephane Delheur, Eric Philibert
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Publication number: 20100326614Abstract: A cationic copolymers of acrylamide obtained by the Hofmann rearrangement, using an alkali and/or alkaline earth hydroxide and an alkali and/or alkaline earth hypohalide, are provided. The copolymers can be used as strengthening agents for paper and/or coagulants. The copolymers have a desalination coefficient (Cd) higher than 0.6, higher than 0.65, or higher than 0.7.Type: ApplicationFiled: February 19, 2008Publication date: December 30, 2010Applicant: SNF S.A.S.Inventors: René Hund, Christian Jehn-Rendu
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Patent number: 7815771Abstract: A process for the manufacture of paper, board or similar products, comprises first of all, adding, to the paper pulp fibrous suspension, at least one main retention aid composed of a cationic (co)polymer. Then optionally the flocs obtained are sheared. Subsequently there is added to the suspension, separately or as a mixture, in any order: at least one secondary retention aid chosen from the group consisting of silica derivatives and anionic or amphoteric organic polymers, and at least one tertiary retention aid composed of a crosslinked anionic organic polymer with a size of greater than or equal to 1 micrometer and exhibiting an intrinsic viscosity of less than 3 dl/g.Type: GrantFiled: November 8, 2004Date of Patent: October 19, 2010Assignee: SNF S.A.S.Inventors: Gatien Faucher, Rene Hund, Christian Jehn-Rendu
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Publication number: 20100197529Abstract: Method for enhanced oil recovery consisting in introducing into the injection water a solution containing at least one polymer and at least one surfactant, the surfactant/polymer weight ratio being between 1 and 10 and the surfactant concentration in the solution being higher than 100 ppm (parts per million), characterized in that the said polymer contains at least one hydrophobic cationic monomer.Type: ApplicationFiled: September 10, 2008Publication date: August 5, 2010Applicant: SNF S.A.S.Inventors: Cedric Favero, Nicolas Gaillard
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Publication number: 20100105976Abstract: Provided is a method for treating sludge from the mining or mineral industry, including before above-ground spreading, contacting the sludge with a flocculating agent that is a water-soluble, organic polymer having a molecular weight of from 5,000,000 to 25,000,000 g/mol and an anionicity of from 10 to 40 mol %, to produce contacted sludge, wherein the water-soluble organic polymer includes at least one anionic monomer having a carboxylic function or having a sulfonic acid function, at least one non-ionic monomer, and optionally one or more cationic monomers, where the flocculating agent is branched, and has from 0.02 to 2 mol % hydrophobic monomers.Type: ApplicationFiled: October 20, 2009Publication date: April 29, 2010Applicant: SNF S.A.S.Inventors: Frédéric Poncet, Nicolas Gaillard
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Patent number: 7700702Abstract: High molecular weight associative amphoteric polymers for increasing the viscosity of aqueous solutions, comprise: at lease one cationic monomer derived from acrylamide bearing at least one hydrophobic chain of 8 to 30 carbon atoms; 1 to 99.9 mole % of at least one anionic monomer; and 1 to 99 mole % of one or several non-ionic water-soluble monomers. Aqueous solutions containing said polymers find uses in industry, in particular the oil, paper, water treatment, mining, cosmetics, textile, detergency industries and generally in all industrial techniques using thickened solutions.Type: GrantFiled: March 29, 2005Date of Patent: April 20, 2010Assignee: SNF S.A.S.Inventors: Nicolas Gaillard, Cédrick Favero
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Patent number: 7504445Abstract: A hydro-seeding composition having the form of an aqueous mixture comprising a polyacrylamide polymer and seeds. The polyacrylamide polymer is a potassium anionic polymer salt or an ammonium anionic polymer salt, instead of a sodium-based polyacrylamide polymer. The hydro-seeding composition may also include various soil amendments. The seeds are grass seeds or plant seeds.Type: GrantFiled: September 29, 2005Date of Patent: March 17, 2009Assignee: SNF S.A.S.Inventor: Cyril Collin
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Publication number: 20070245786Abstract: A fertilizer granule contains, as a binder, at least one organic polymer. The organic polymer is a hydrosoluble polymer that is at least partially cationic.Type: ApplicationFiled: July 20, 2005Publication date: October 25, 2007Applicant: SNF S.A.S.Inventors: Jacques Brosse, Stephane Delheur, Eric Philibert
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Publication number: 20070074315Abstract: A hydro-seeding composition having the form of an aqueous mixture comprising a polyacrylamide polymer and seeds. The polyacrylamide polymer is a potassium anionic polymer salt or an ammonium anionic polymer salt, instead of a sodium-based polyacrylamide polymer. The hydro-seeding composition may also include various soil amendments. The seeds are grass seeds or plant seeds.Type: ApplicationFiled: September 29, 2005Publication date: March 29, 2007Applicant: SNF S.A.SInventor: Cyril Collin