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公开(公告)号：US11447588B2
公开(公告)日：2022-09-20
申请号：US16088225
申请日：2017-03-29
申请人： COATEX
IPC分类号： C08F220/06 , C08F220/20 , C09D133/02 , C09D133/08 , C08K3/22 , C09D5/02 , C08F220/28 , C09D133/10 , C09D133/06
摘要： The invention relates to the field of preparing aqueous dispersions of organic, organometallic or inorganic particles. In particular, the invention relates to the preparation of aqueous suspensions comprising organic, organometallic or inorganic particles and at least one particular copolymer obtained by polymerization of at least one acid and at least one compound or at least one ester derived from a particular acid, in the presence of water, at least one initiator compound and at least one activator compound, followed by total or partial neutralization by means of at least one compound chosen from alkali metal hydroxides, alkaline earth metal hydroxides, alkaline earth metal dihydroxides and mixtures thereof. The invention relates to such a particular copolymer having a low polydispersity index and weight-average molecular weight, the preparation process thereof and the use thereof, especially for the preparation of an aqueous paint composition.
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公开(公告)号：US12122884B2
公开(公告)日：2024-10-22
申请号：US15734386
申请日：2019-06-05
申请人： COATEX
IPC分类号： C08J3/05 , C08F2/22 , C08F220/06 , C08F220/18 , C22B3/26 , C22B3/40 , C22B15/00
CPC分类号： C08J3/05 , C08F2/22 , C08F220/06 , C08F220/1802 , C22B3/41 , C22B15/00
摘要： A method for preparing an aqueous mineral suspension from an aqueous metal ore residue may include introducing into the aqueous metal ore residue a polymer (P) having a molecular mass Mw measured by GPC ranging from 2,000 to 20,000 g/mol. The polymer (P) may be prepared by radical polymerization of at least one anionic monomer (M). The suspension produced by such a method may have a Brookfield viscosity of which is lower than 1,800 mPa·s or a yield point of lower than 80 Pa.
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