公开(公告)号：US12173174B2

公开(公告)日：2024-12-24

申请号：US17265224

申请日：2019-07-22

Applicant: BASF SE

Inventor： Bastiaan Lohmeijer ,  Roelof Balk ,  Robert Wrazidlo

IPC: C08F2/22 ,  C09D5/02 ,  C09D5/22 ,  C09D125/14 ,  C09D133/12

Abstract: The present invention relates to a process for producing an aqueous polymer dispersion of polymerized ethylenically unsaturated monomers M having a polymer content of at least 55 wt. % and a polymodal particle size distribution of the polymer particles of the polymer dispersion. The invention also relates to aqueous polymer dispersions obtained from this process as well as aqueous liquid compositions comprising at least one aqueous polymer dispersion and the use of such aqueous liquid compositions as binder.

公开(公告)号：US10196463B2

公开(公告)日：2019-02-05

申请号：US15523800

申请日：2015-11-03

Applicant: BASF SE

Inventor： Roelof Balk ,  Bastiaan Lohmeijer

IPC: C08F2/22 ,  C08F265/06 ,  C08F290/14 ,  C08F2/46 ,  C08F2/24 ,  C09D133/10 ,  C09J121/02 ,  C09J151/06 ,  C09D15/00 ,  C09D133/14 ,  C08F2/26 ,  C08F220/14 ,  C08F6/20 ,  C09D151/00

Abstract: The present invention relates to a method for producing an aqueous polymer dispersion by radical-initiated aqueous emulsion polymerization of ethylenically unsaturated monomers, and to polymer dispersions obtainable according to said method. The invention also relates to the use of the said polymer dispersions, in particular for the production of coating products for wood.

公开(公告)号：US11999810B2

公开(公告)日：2024-06-04

申请号：US17257969

申请日：2019-07-04

Applicant: BASF SE ,  Universidad del Paìs Vasco / Euskal Herriko Unibertsitatea

Inventor： Massimo Bandiera ,  Roelof Balk ,  Bastiaan Lohmeijer ,  Maria Jesus Barandiaran

IPC: C08J3/07 ,  C08F265/06 ,  C09D151/00

CPC classification number: C08F265/06 ,  C08J3/07 ,  C09D151/003 ,  C08J2351/00 ,  C08F265/06 ,  C08F220/1804

Abstract: The present invention relates to a process for producing an aqueous polymer dispersion of polymerized ethylenically unsaturated monomers, where the process has a first polymerization step as an aqueous radical emulsion polymerization of a first monomer composition M.a and a subsequent further polymerization step as an aqueous radical emulsion polymerization of a second monomer composition M.b,
where the monomers M comprise at least one monomer M0 which is selected from compounds of formula 1, wherein X is Cl, Br or OS(O)2R3, Y is H, Cl, Br, OS(O)2R4, C1-C10-alkyl, or C(═O)OR5, R1 is H or C1-C10-alkyl, R2 is H or C1-C10-alkyl, R3 is C1-C10-alkyl, R4 is C1-C10-alkyl, R5 is C1-C20-alkyl.




The invention also relates to an aqueous polymer dispersion obtainable by such a process as well as the use of such dispersions.

公开(公告)号：US10913811B2

公开(公告)日：2021-02-09

申请号：US16085807

申请日：2017-03-14

Applicant: BASF SE

Inventor： Roelof Balk ,  Bastiaan Lohmeijer ,  Robert Wrazidlo

IPC: C08F265/06 ,  C09D151/00 ,  C09D7/65 ,  C08F2/22 ,  C08F2/38 ,  C08K5/07 ,  C09D5/02 ,  C08F220/18 ,  C08F212/08 ,  C08F220/14 ,  C08L79/02

Abstract: The present invention provides very finely divided polymer dispersions obtainable by at least one two-stage emulsion polymerization, wherein 1) an acid-rich first polymer P1 is prepared by a radical polymerization from a 1st composition comprising A) at least one monomer selected from the group of (cyclo)alkyl (meth)acrylates, vinylaromatics having up to 20 carbon atoms, a radically polymerizable compound selected from the group of ethylenically unsaturated nitriles having up to 20 carbon atoms, vinyl esters of carboxylic acids containing up to 20 carbon atoms, vinyl halides having up to 10 carbon atoms, and vinyl ethers of alcohols containing 1 to 10 carbon atoms B) at least one α,β-ethylenically unsaturated carboxylic acid C) at least one crosslinking monomer with a keto or aldehyde group D) optionally at least one adhesion promoter E) optionally tert-butyl acrylate F) optionally further monomers M in the presence of a chain link transfer agent, 2) the polymer P1 prepared under 1) is admixed with a base, 3) a hydrophobic polymer P2 is prepared by radical polymerization, in the presence of the polymer P1 treated under 2), from a 2nd composition comprising A) at least one monomer selected from the group of (cyclo)alkyl (meth)acrylates, vinylaromatics having up to 20 carbon atoms, a radically polymerizable compound selected from the group of ethylenically unsaturated nitriles having up to 20 carbon atoms, vinyl esters of carboxylic acids containing up to 20 carbon atoms, vinyl halides having up to 10 carbon atoms, and vinyl ethers of alcohols containing 1 to 10 carbon atoms B) optionally at least one α,β-ethylenically unsaturated carboxylic acid C) at least one crosslinking monomer with a keto or aldehyde group D) optionally at least one adhesion promoter, and also E) optionally further monomers M, 4) and by optional addition, subsequent to the polymerization of P1 and P2, of a water-soluble at least trifunctional alkoxylated polyamine, more particularly an ethoxylated and/or propoxylated triamine.

公开(公告)号：US10597477B2

公开(公告)日：2020-03-24

申请号：US15512303

申请日：2015-09-18

Applicant: BASF SE

Inventor： Roelof Balk ,  Bastiaan Lohmeijer

IPC: C08F2/26 ,  C08F265/06 ,  C09D151/00 ,  C09D5/00

Abstract: The present invention relates to a polymer dispersion obtainable by at least one two-stage emulsion polymerization, by 1) preparing a polymer A by a radical polymerization from a 1st composition comprising A) at least one monomer, B) at least one anionic copolymerizable emulsifier, 2) admixing the polymer A prepared at 1) with a base, 3) in the presence of the polymer A treated at 2), preparing a polymer B by radical polymerization from a 2nd composition comprising A) at least one monomer, B) at least one anionic copolymerizable emulsifier. The present invention also relates to a process for preparing the polymer dispersion of the invention, to coating materials in the form of an aqueous composition comprising the polymer dispersion of the invention, and to the use of the polymer dispersion of the invention for coating compositions or paints and varnishes.