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1. (WO2010136867) USE OF A (METH)ACRYLIC COMB POLYMER CONTAINING A (METH)ACRYLIC ESTER AS A DISPERSING AND ANTI-DEFOAMING AGENT IN AN AQUEOUS SUSPENSION OF SEMI-HYDRATED CALCIUM SULFATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/136867    International Application No.:    PCT/IB2010/001187
Publication Date: 02.12.2010 International Filing Date: 18.05.2010
IPC:
C04B 28/14 (2006.01), C04B 24/26 (2006.01), B01F 17/34 (2006.01)
Applicants: COATEX S.A.S. [FR/FR]; 35 rue Ampère, Z.I. Lyon Nord 69730 Genay (FR) (For All Designated States Except US).
SUAU, Jean-Marc [FR/FR]; (FR) (For US Only).
KENSICHER, Yves [FR/FR]; (FR) (For US Only)
Inventors: SUAU, Jean-Marc; (FR).
KENSICHER, Yves; (FR)
Agent: BILLARD, Olivier; Coatex S.A.S. 35 rue Ampère, Z.I. Lyon Nord 69730 Genay (FR)
Priority Data:
09 53525 28.05.2009 FR
Title (EN) USE OF A (METH)ACRYLIC COMB POLYMER CONTAINING A (METH)ACRYLIC ESTER AS A DISPERSING AND ANTI-DEFOAMING AGENT IN AN AQUEOUS SUSPENSION OF SEMI-HYDRATED CALCIUM SULFATE
(FR) UTILISATION D'UN POLYMÈRE PEIGNE (MÉTH)ACRYLIQUE CONTENANT UN ESTER (MÉTH)ACRYLIQUE COMME AGENT DISPERSANT ET ANTI-DÉMOUSSANT DANS UNE SUSPENSION AQUEUSE DE SULFATE DE CALCIUM HÉMIHYDRATÉ
Abstract: front page image
(EN)The present invention relates to the use, in a foamed aqueous suspension of semi-hydrated calcium sulfate and as an agent having a dual function as both a dispersing agent and as an anti-defoaming agent, of a comb polymer comprising (meth)acrylic acid, a monomer consisting of alkoxy or hydroxy polyalkylene glycol, and a (meth)acrylic acid ester. The invention also relates to the aqueous suspensions thus formed, and to gypsum plates made from two paper sheets containing a body resulting from the drying of said suspensions.
(FR)La présente invention concerne l'utilisation, dans une suspension aqueuse moussée de sulfate de calcium hémihydraté, comme agent ayant la double fonction d'être un dispersant et un agent anti-démoussant, d'un polymère peigne constitue d'acide (méth)acrylique, d'un monomère qui est un alcoxy ou un hydroxy polyalkylène glycol et d'un ester de l'acide (méth)acrylique. Elle concerne également les suspensions aqueuses ainsi formées, et les plaques de plâtre fabriquées a partir de 2 feuilles de papier contenant un corps résultant du séchage desdites suspensions.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)