Patents by Inventor Gatien Faucher
Gatien Faucher has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11781271Abstract: This method for treating the surface of paper and/or one of the layers thereof, comprises the following successive steps: i) Supplying an aqueous suspension S of polysaccharide; ii) Supplying an aqueous dispersion D comprising (a) particles of at least one anionic water-swellable polymer P and (b) at least one compound selected from a mineral salt, an organic salt, an organic dispersing polymer and the mixtures thereof; iii) Mixing the suspension S and the dispersion D to obtain a mixture M; iv) Applying the mixture M to the surface of the paper and/or to at least one of the layers thereof.Type: GrantFiled: March 13, 2020Date of Patent: October 10, 2023Assignee: S.P.C.M. SAInventors: Gatien Faucher, Damien Fougerouse, René Hund
-
Publication number: 20230295877Abstract: This invention relates to a method for manufacturing a sheet of paper or cardboard, comprising the addition of a water-soluble polymer P with a weight-average molecular weight greater than 750,000 Dalton to a fibrous suspension. This method comprises the following successive steps: preparing an aqueous solution A containing at least one water-soluble polymer P at a concentration C of between 0.1 and 0.5% by weight, said polymer P having a factor F(C) strictly greater than 4, with F(C)=?600/C, ?600 being the slope to reach 90% of the viscosity developed by aqueous solution A at 600 seconds at 25° C., obtained from the viscosity curve of aqueous solution A as a function of time, at the given concentration C, at 25° C., adding aqueous solution A to the fibrous suspension, at one or more injection points, forming a sheet of paper or cardboard.Type: ApplicationFiled: June 24, 2021Publication date: September 21, 2023Applicant: SPCM SAInventors: Gatien FAUCHER, Damien FOUGEROUSE
-
Publication number: 20230243103Abstract: The present invention relates to a polymer complex obtained by inverse emulsion polymerization of water-soluble monomers: in the presence of a cationic water-soluble host polymer comprising amine functions.Type: ApplicationFiled: March 17, 2021Publication date: August 3, 2023Applicant: SPCM SAInventors: René HUND, Gatien FAUCHER, Damien FOUGEROUSE
-
Patent number: 11629211Abstract: This invention relates to an additive based on (co)polymers resulting from the reaction between at least one dialdehyde compound and at least one complex (co)polymer obtained by polymerization of water-soluble monomers in the presence of at least one host (co)polymer comprising vinylamine functions.Type: GrantFiled: April 8, 2020Date of Patent: April 18, 2023Assignee: SNF GROUPInventors: René Hund, Gatien Faucher, Damien Fougerouse
-
Patent number: 11608597Abstract: The present invention relates to a complex of polymers and to the use thereof in a method of making paper, cardboard or the like. This complex of polymers is obtained by polymerizing water-soluble monomers: in the presence of a host polymer that comprises vinylamine functions and of a non-polymeric transfer agent, and in the absence of a branching or crosslinking agent of the ethylenic polyfunctional type. It is obtained as from a mass ratio of anionic monomer to water that is greater than 0.035.Type: GrantFiled: May 7, 2019Date of Patent: March 21, 2023Assignee: SPCM SAInventors: Gatien Faucher, Damien Fougerouse, René Hund
-
Publication number: 20220162803Abstract: This method for treating the surface of paper and/or one of the layers thereof, comprises the following successive steps: i) Supplying an aqueous suspension S of polysaccharide; ii) Supplying an aqueous dispersion D comprising (a) particles of at least one anionic water-swellable polymer P and (b) at least one compound selected from a mineral salt, an organic salt, an organic dispersing polymer and the mixtures thereof; iii) Mixing the suspension S and the dispersion D to obtain a mixture M; iv) Applying the mixture M to the surface of the paper and/or to at least one of the layers thereof.Type: ApplicationFiled: March 13, 2020Publication date: May 26, 2022Inventors: Gatien FAUCHER, Damien FOUGEROUSE, René HUND
-
Publication number: 20210140111Abstract: The present invention relates to a complex of polymers and to the use thereof in a method of making paper, cardboard or the like. This complex of polymers is obtained by polymerizing water-soluble monomers: in the presence of a host polymer that comprises vinylamine functions and of a non-polymeric transfer agent, and in the absence of a branching or crosslinking agent of the ethylenic polyfunctional type. It is obtained as from a mass ratio of anionic monomer to water that is greater than 0.035.Type: ApplicationFiled: May 7, 2019Publication date: May 13, 2021Applicant: S.P.C.M. SAInventors: Gatien FAUCHER, Damien FOUGEROUSE, René HUND
-
Publication number: 20200325263Abstract: This invention relates to an additive based on (co)polymers resulting from the reaction between at least one dialdehyde compound and at least one complex (co)polymer obtained by polymerization of water-soluble monomers in the presence of at least one host (co)polymer comprising vinylamine functions.Type: ApplicationFiled: April 8, 2020Publication date: October 15, 2020Applicant: S.P.C.M. SAInventors: René HUND, Gatien FAUCHER, Damien FOUGEROUSE
-
Patent number: 10689809Abstract: The present invention relates to a process for manufacturing a sheet of paper and/or board from a fibrous suspension, according to which, before the formation of said sheet, added to the fibrous suspension, at one or more injection points, are at least two retention aids respectively: (a) at least one water-soluble organic cationic polymer P1 having a cationicity greater than 2 meq·g?1, and (b) at least one water-soluble amphoteric polymer P2 of at least one anionic monomer and of at least one cationic monomer. The polymer P2 is added to the fibrous suspension after dissolving, in aqueous solution, the polymer P2 previously obtained by one of the following polymerization techniques: gel polymerization, suspension polymerization, inverse emulsion polymerization, dispersion polymerization. The polymer P2 has a factor F>2, said factor F being defined by the formula: F=UL2×[(100?A)/(100?C)] with UL: Brookfield viscosity of the polymer P2 at 0.Type: GrantFiled: January 25, 2017Date of Patent: June 23, 2020Assignee: S.P.C.M. SAInventors: Gatien Faucher, Damien Fougerouse, René Hund
-
Publication number: 20190048530Abstract: The present invention relates to a process for manufacturing a sheet of paper and/or board from a fibrous suspension, according to which, before the formation of said sheet, added to the fibrous suspension, at one or more injection points, are at least two retention aids respectively: (a) at least one water-soluble organic cationic polymer P1 having a cationicity greater than 2 meq·g?1, and (b) at least one water-soluble amphoteric polymer P2 of at least one anionic monomer and of at least one cationic monomer. The polymer P2 is added to the fibrous suspension after dissolving, in aqueous solution, the polymer P2 previously obtained by one of the following polymerization techniques: gel polymerization, suspension polymerization, inverse emulsion polymerization, dispersion polymerization. The polymer P2 has a factor F>2, said factor F being defined by the formula: F=UL2×[(100?A)/(100?C)] with UL: Brookfield viscosity of the polymer P2 at 0.Type: ApplicationFiled: January 25, 2017Publication date: February 14, 2019Applicant: S.P.C.M. SAInventors: Gatien FAUCHER, Damien FOUGEROUSE, René HUND
-
Patent number: 9546246Abstract: Polymer complex obtained by polymerization of water-soluble monomers: in the presence of a host polymer comprising vinylamine functions and of a non-polymeric transfer agent, and in the absence of branching or crosslinking agent of ethylenic polyfunctional type.Type: GrantFiled: July 24, 2014Date of Patent: January 17, 2017Assignee: S.P.C.M. SAInventors: René Hund, Gatien Faucher, Damien Fougerousse
-
Patent number: 8999112Abstract: A method for manufacturing a sheet of paper and/or board having improved retention and drainage properties is provided, according to which, before the formation of the sheet and/or board, at least two retention aids are added to the fibrous suspension. These two retention aids are a main retention aid corresponding to a (co)polymer having a cationic charge density above 2 meq/g, obtained by the Hofmann degradation reaction, and a secondary retention aid corresponding to a water-soluble or water-swellable polymer having an anionic charge density above 0.1 meq/g. The main retention aid is introduced into the fibrous suspension in a proportion of 100 to 800 g/t of dry pulp, and the secondary retention aid is introduced into the fibrous suspension in a proportion of 50 to 800 g/t of dry pulp and has an intrinsic viscosity IV above 3 dl/g.Type: GrantFiled: January 30, 2013Date of Patent: April 7, 2015Assignee: S.P.C.M. SAInventors: Gatien Faucher, Rene Hund
-
Publication number: 20150053361Abstract: Polymer complex obtained by polymerization of water-soluble monomers: in the presence of a host polymer comprising vinylamine functions and of a non-polymeric transfer agent, and in the absence of branching or crosslinking agent of ethylenic polyfunctional type.Type: ApplicationFiled: July 24, 2014Publication date: February 26, 2015Applicant: S.P.C.M. SAInventors: René HUND, Gatien FAUCHER, Damien FOUGEROUSSE
-
Publication number: 20130139986Abstract: A method for manufacturing a sheet of paper and/or board having improved retention and drainage properties is provided, according to which, before the formation of the sheet and/or board, at least two retention aids are added to the fibrous suspension. These two retention aids are a main retention aid corresponding to a (co)polymer having a cationic charge density above 2 meq/g, obtained by the Hofmann degradation reaction, and a secondary retention aid corresponding to a water-soluble or water-swellable polymer having an anionic charge density above 0.1 meq/g. The main retention aid is introduced into the fibrous suspension in a proportion of 100 to 800 g/t of dry pulp, and the secondary retention aid is introduced into the fibrous suspension in a proportion of 50 to 800 g/t of dry pulp and has an intrinsic viscosity IV above 3 dl/g.Type: ApplicationFiled: January 30, 2013Publication date: June 6, 2013Inventors: Gatien Faucher, Rene Hund
-
Patent number: 8343311Abstract: A method for producing paper, cardboard or similar materials, comprising, separately or in a mixture, adding to a fibrous suspension: at least one main retention agent comprising a cationic (co)polymer, and at least one dual retention agent comprising a crosslinked cationic (co)polymer obtained in the form of a dispersion and placed in solution prior to its introduction into the fibrous suspension with gentle stirring. The crosslinked cationic (co)polymer having—a UL viscosity of between 1.3 and 2.7 cps, preferably between 1.5 and 2.4 cps, and—an apparent cationicity ratio of between 25 and 75%. Optionally, before or after the dual agent or the main retention agent are added, one or more tertiary retention agent(s) selected from the group comprising mineral particles and organic polymers carrying anionic charges, is added to the suspension.Type: GrantFiled: April 10, 2009Date of Patent: January 1, 2013Assignee: S.P.C.M. SAInventors: Rene Hund, Gatien Faucher
-
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
-
Publication number: 20090277597Abstract: A method for producing paper, cardboard or similar materials, comprising, separately or in a mixture, adding to a fibrous suspension: at least one main retention agent comprising a cationic (co)polymer, and at least one dual retention agent comprising a crosslinked cationic (co)polymer obtained in the form of a dispersion and placed in solution prior to its introduction into the fibrous suspension with gentle stirring. The crosslinked cationic (co)polymer having—a UL viscosity of between 1.3 and 2.7 cps, preferably between 1.5 and 2.4 cps, and—an apparent cationicity ratio of between 25 and 75%. Optionally, before or after the dual agent or the main retention agent are added, one or more tertiary retention agent(s) selected from the group comprising mineral particles and organic polymers carrying anionic charges, is added to the suspension.Type: ApplicationFiled: April 10, 2009Publication date: November 12, 2009Applicant: SNF SASInventors: Rene Hund, Gatien Faucher
-
Publication number: 20090050282Abstract: 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: ApplicationFiled: November 8, 2004Publication date: February 26, 2009Applicant: SNF SASInventors: Gatien Faucher, Rene Hund, Christian Jehn-Rendu