Use as an agent improving the workability of an aqueous formulation with a hydraulic binder base, of a (meth)acrylic comb-branched copolymer and an associative acrylic thickener
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08L-033/14
C04B-016/04
C04B-040/00
C04B-103/32
출원번호
US-0510186
(2014-10-09)
등록번호
US-9850374
(2017-12-26)
우선권정보
FR-08 58346 (2008-12-08)
발명자
/ 주소
Platel, David
Moro, Jean
Guerret, Olivier
출원인 / 주소
COATEX
대리인 / 주소
Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
The present invention pertains to the use, in the manufacture of an aqueous formulation with a hydraulic binder base, of a combination of 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 ASE a
The present invention pertains to the use, in the manufacture of an aqueous formulation with a hydraulic binder base, of a combination of 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 ASE acrylic polymer. This results in improving the workability of said formulation, without causing a segregation phenomenon.
대표청구항▼
1. A method of forming an aqueous formulation comprising a hydraulic binder base having improved workability, the method comprising mixing a combination with said hydraulic binder base, wherein the combination comprises:A) an aqueous solution comprising water and a comb-branched (meth)acrylic copoly
1. A method of forming an aqueous formulation comprising a hydraulic binder base having improved workability, the method comprising mixing a combination with said hydraulic binder base, wherein the combination comprises:A) an aqueous solution comprising water and a comb-branched (meth)acrylic copolymer that comprises, expressed as a percentage by weight of each of its monomers: a1) 5% to 30% of (meth)acrylic acid,a2) 70% to 95% of at least one monomer of formula (I): wherein:m, n, p, and q are whole numbers and m, n, and p are less than 150, q is greater than 0, and at least one whole numbers among m, n, and p is nonzero;R is a radical comprising a polymerizable unsaturated function;R1 and R2 are identical or different, and represent a hydrogen atom or an alkyl group,R′ represents hydrogen, or a hydrocarbonated radical having 1 to 40 carbon atoms, or an ionic or ionizable group; anda3) 0% to 50% of at least one monomer different from monomers a1) and a2), wherein a sum of percentages of a1), a2), and a3) equals 100%; andB) an aqueous solution comprising water and an ASE acrylic polymer consisting of 55 wt. % methacrylic acid and 45% wt. % ethyl acrylate. 2. The method of claim 1, wherein the aqueous formulation comprising a hydraulic binder base is a mortar. 3. The method of claim 1, wherein the aqueous formulation comprising a hydraulic binder base is a concrete. 4. The method of claim 1, wherein the aqueous formulation comprising a hydraulic binder base is a grout. 5. The method of claim 1, wherein the aqueous formulation comprising a hydraulic binder base, after said mixing, remains workable for at least three hours. 6. The method according to claim 1, wherein said aqueous formulation comprising a hydraulic binder base, after said mixing, has a 0.1 to 2% solids content of said comb-branched (meth)acrylic copolymer and ASE acrylic polymer in relation to a solid content of the hydraulic binder base. 7. The method according to claim 1, wherein the comb-branched (meth)acrylic copolymer is fully or partially neutralized with at least one neutralization agent having a monovalent cation. 8. The method according to claim 1, wherein the ASE acrylic polymer is fully or partially neutralized with at least one neutralization agent having a monovalent cation. 9. The method according to claim 7, wherein the ASE acrylic polymer is fully or partially neutralized with at least one neutralization agent having a monovalent cation.
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