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31. 发明授权

US10836871B2 Method of preparation of cationic polymers with reduced halides content 有权
公开(公告)号：US10836871B2
公开(公告)日：2020-11-17
申请号：US16331720
申请日：2017-09-20
申请人： S.P.C.M. SA
发明人： Johann Kieffer , Cédrick Favero , Christophe Roux
IPC分类号： C08J3/07 , C04B28/02 , C04B28/14 , C23F11/173 , C04B24/26 , C08F126/04 , C08G59/50 , C04B24/28 , C08F26/04 , C04B103/00
CPC分类号： C08J3/07 , C04B24/2647 , C04B24/2682 , C04B24/281 , C04B28/02 , C04B28/14 , C08F26/04 , C08F126/04 , C08G59/50 , C08G59/5006 , C23F11/173 , C04B2103/0053 , C08J2347/00
摘要： The present invention relates to a polymer preparation method for preparing water-soluble cationic polymers P1 wherein the halides content is reduced, as well as to the use of these polymers as additives in compositions that are based on inorganic mineral binders or in the treatment of aqueous open, semi-closed, or closed circuits.

32. 发明申请

US20200255716A1 DRILLING FLUID WITH IMPROVED FLUID LOSS AND VISCOSIFYING PROPERTIES 审中-公开
公开(公告)号：US20200255716A1
公开(公告)日：2020-08-13
申请号：US16848338
申请日：2020-04-14
申请人： S.P.C.M. SA
发明人： Cédrick FAVERO , Bruno GIOVANNETI , Olivier RATEL , Pierrick CHEUCLE
IPC分类号： C09K8/12 , C08F220/58
摘要： The invention relates to a water-soluble branched sulfonated amphoteric polymer, for a water-based drilling fluid, wherein the polymer is obtained by precipitation polymerization, in a mixture of polar solvents, of at least one N,N′-dialkylacrylamide monomer and one sulfonic acid-containing monomer, in the presence of tetraallylammonium halide as branching agent.The invention also relates to a water-based drilling fluid for subterranean boreholes, including: an aqueous fluid, said aqueous fluid being selected from sea water, brine, or salt-containing aqueous solution, between 0.1 and 5.0 weight percent of the water-soluble branched sulfonated amphoteric polymer described above.

33. 发明授权

US10689809B2 Process for manufacturing paper and board 有权
公开(公告)号：US10689809B2
公开(公告)日：2020-06-23
申请号：US16078110
申请日：2017-01-25
申请人： S.P.C.M. SA
发明人： Gatien Faucher , Damien Fougerouse , René Hund
IPC分类号： D21H21/10 , D21H17/41 , D21H21/18 , D21H17/44 , D21H17/45 , D21H23/04
摘要： 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 0.1% by weight in a 1M aqueous solution of NaCl, at 23° C., with a UL module and at 60 rev·min−1, A and C corresponding respectively to the molar percentages of the anionic and cationic monomers of the polymer P2.

34. 发明申请

US20200031765A1 HYDRATED CRYSTALLINE FORM OF 2-ACRYLAMIDO-2-METHYLPROPANE SULFONIC ACID 审中-公开
公开(公告)号：US20200031765A1
公开(公告)日：2020-01-30
申请号：US16496031
申请日：2018-03-19
申请人： S.P.C.M. SA
发明人： Cédrick FAVERO , Johann KIEFFER
IPC分类号： C07C309/15
摘要： The present invention relates to a hydrated crystalline form of 2-acrylamido-2-methylpropane sulfonic acid having a 2-theta powder X-ray diffraction diagram comprising peaks at 10.58°, 11.2°, 12.65°, 13.66°, 16.28°, 18.45°, 20°, 20.4°, 22.5°, 25.5°, 25.88°, 26.47°, 28.52°, 30.28°, 30.8°, 34.09°, 38.19°, 40.69°, 41.82°, 43.74°, 46.04° degrees (+/−0.1°).The present invention also relates to a production method for this form of 2-acrylamido-2-methylpropane sulfonic acid and a preparation method for an aqueous solution A of a salt of this form of 2-acrylamido-2-methylpropane sulfonic acid, and the (co)polymer of this form of -acrylamido-2-methylpropane sulfonic acid.

35. 发明授权

US10407649B2 Use in detergent compositions of polymers obtained by low-concentration reverse emulsion polymerization with a low content of neutralized monomers 有权
公开(公告)号：US10407649B2
公开(公告)日：2019-09-10
申请号：US15500590
申请日：2015-08-05
申请人： S.P.C.M. SA
发明人： Frédéric Blondel , Lionel Champagnon
IPC分类号： C11D3/37 , C11D17/00
摘要： An aqueous liquid detergent composition for household or industrial use, of a branched or cross-linked polymer is obtained by polymerizing an aqueous solution of one or more monomers by water-in-oil reverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer carrying at least one weak acid function. The molar percentage of monomers carrying at least one weak acid function relative to the totality of the monomers being used being at least 30%, characterized in that: i) the polymerization is carried out with a concentration of the totality of the monomers in aqueous solution being in the range 1.3 mmol to 3.6 mmol per gram of aqueous solution; ii) during the polymerization, at most 20% of the acid functions present on the monomers having at least one acid function are in the neutralized form.

36. 发明授权

US10407324B2 Method for treating suspensions of solid particles in water using comb like polymers 有权
公开(公告)号：US10407324B2
公开(公告)日：2019-09-10
申请号：US15309968
申请日：2015-04-24
申请人： S.P.C.M. SA
发明人： Cédrick Favero , Morgan Tizzotti
IPC分类号： C02F1/56 , B09B3/00 , C08F261/04 , B09B5/00 , C01B11/00 , C08F263/04 , C02F11/14 , C08F218/08 , C08F220/56 , C02F103/10
摘要： The invention relates to a method for treating an aqueous suspension of solid particles, wherein at least one water-soluble polymer is added to the suspension, and wherein said polymer is obtained by polymerizing at least a non-ionic monomer, optionally at least one anionic and/or at least one cationic monomer, in the presence of a multifunctional free radical transfer agent. This method is particularly useful for the treatment of mineral tailings and especially for tailings resulting from oil sand extraction.

37. 发明申请

US20190255501A1 USE OF AN AMPHOLYTE COPOLYMER AS COLLOIDAL STABILIZER IN A PROCESS OF ENCAPSULATING FRAGRANCE 审中-公开
公开(公告)号：US20190255501A1
公开(公告)日：2019-08-22
申请号：US16331166
申请日：2017-09-18
申请人： S.P.C.M. SA
发明人： Frédéric BLONDEL , Emmanuel AUSSANT , Sandra GUINEBRETIERE , Ian Michael HARRISON , Guillaume JEANSON
IPC分类号： B01J13/14 , C11B9/00
摘要： The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer, and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

38. 发明申请

US20190202997A1 METHOD OF PREPARATION OF CATIONIC POLYMERS WITH REDUCED HALIDES CONTENT 审中-公开
公开(公告)号：US20190202997A1
公开(公告)日：2019-07-04
申请号：US16331720
申请日：2017-09-20
申请人： S.P.C.M. SA
发明人： Johann KIEFFER , Cédrick FAVERO , Christophe ROUX
IPC分类号： C08J3/07 , C08G59/50 , C08F26/04 , C04B24/28 , C04B24/26 , C04B28/14 , C23F11/173
CPC分类号： C08J3/07 , C04B24/2647 , C04B24/2682 , C04B24/281 , C04B28/02 , C04B28/14 , C04B2103/0053 , C08F26/04 , C08F126/04 , C08G59/50 , C08G59/5006 , C08J2347/00 , C23F11/173
摘要： The present invention relates to a polymer preparation method for preparing water-soluble cationic polymers P1 wherein the halides content is reduced, as well as to the use of these polymers as additives in compositions that are based on inorganic mineral binders or in the treatment of aqueous open, semi-closed, or closed circuits.

39. 发明申请

US20180193812A1 USE OF AN AMPHOLYTE COPOLYMER AS COLLOIDAL STABILIZER 审中-公开
公开(公告)号：US20180193812A1
公开(公告)日：2018-07-12
申请号：US15737601
申请日：2016-06-22
申请人： S.P.C.M. SA
发明人： Frédéric BLONDEL , Guillaume JEANSON , Ian HARRISON , Emmanuel AUSSANT
IPC分类号： B01J13/10 , C08F220/06 , C08F220/56 , C08F220/60
CPC分类号： B01J13/10 , A61K8/11 , A61K8/8152 , A61K8/8158 , A61K2800/5428 , A61Q13/00 , C08F220/06 , C08F220/56 , C08F220/60 , C08F2800/10 , C11D3/3796 , C11D3/505 , C11D17/0039
摘要： The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer, and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

40. 发明申请

US20180186714A1 METHOD FOR THE PREPARATION OF ALKYLSALICYLALDEHYDE AND ALKYLSALICYLALDOXIME, AND USE THEREOF 审中-公开
公开(公告)号：US20180186714A1
公开(公告)日：2018-07-05
申请号：US15740245
申请日：2016-05-30
申请人： S.P.C.M. SA
发明人： Johann KIEFFER , Cédrick FAVERO
IPC分类号： C07C45/75 , C07C47/565 , C07C249/08 , C07C251/48
CPC分类号： C07C45/75 , C07C45/68 , C07C47/565 , C07C249/08 , C07C251/48 , C22B3/1633 , C22B15/0065 , C07C251/54
摘要： The invention relates to an improved method for the preparation of alkylsalicylaldehyde or its corresponding metallic salts. The invention also relates to a method for the preparation of alkylsalicylaldoxime by reacting said alkylsalicylaldehyde or its corresponding metallic salts with hydroxylamine or its salt. The invention also relates to a method for extracting a metal in an aqueous solution containing dissolved metal.

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