公开(公告)号：US11292861B2

公开(公告)日：2022-04-05

申请号：US16321493

申请日：2017-07-28

Applicant: BASF SE

Inventor： Sebastian Enck ,  Peter Nesvadba ,  Christoph Tonhauser ,  Tobias Reinhard Umbach ,  Meik Ranft ,  Helmut Steininger ,  Jens Hartig

IPC: C08F222/38 ,  C08F222/10 ,  C08F216/12 ,  C08J3/12 ,  C09D133/14 ,  C09J133/14 ,  C09J133/24

Abstract: The invention relates to aqueous polymer dispersions, comprising a water insoluble polymer P in the form of dispersed polymer particles, which is obtainable by free radical aqueous emulsion polymerization of ethylenically unsaturated monomers M, which comprise a) at least one monomer M1 which exhibits two ethylenically unsaturated moieties which are connected by a linker which comprises a disulfide moiety, and b) at least one monoethylenically unsaturated monomer M2, which has a low water solubility. The invention also relates to processes for preparing such an aqueous polymer dispersion, to solid polymer compositions in powder form, obtainable by drying such polymer dispersions, to the use of such polymer dispersions in a coating material, adhesive or sealant and to a methods of coating a surface of a substrate which comprises applying an aqueous coating composition, which contains such an polymer dispersion.

公开(公告)号：US20150099843A1

公开(公告)日：2015-04-09

申请号：US14400594

申请日：2013-05-23

Applicant: BASF SE

Inventor： Jens Hartig ,  Manfred Dargatz ,  Karl Haeberle ,  Sebastian Enck

IPC: C09D133/12 ,  C08K5/29

CPC classification number: C09D133/12 ,  C08F265/06 ,  C08K5/29 ,  C08L33/04 ,  C08L2201/54 ,  C08L2308/00 ,  C09D133/10 ,  C09D151/003 ,  C08L33/066 ,  C08L33/02 ,  C08L33/14 ,  C08F220/18

Abstract: The present invention relates to aqueous binder compositions which are based on aqueous multistage polymer dispersions, to the uses of such binder compositions, and to coating compositions comprising them. The aqueous binder composition comprises: a) a polymer P in the form of an aqueous multistage polymer dispersion of dispersed polymer particles, where the polymer particles comprise a first polymer having a glass transition temperature of at least 30° C. and being made of ethylenically unsaturated monomers M-A, and a second polymer having a glass transition temperature of not more than 20° C. and being made of ethylenically unsaturated monomers M-B, where the ethylenically unsaturated monomers M-A and M-B together comprise: i. 85% to 99.45% by weight, preferably 87.5% to 97% by weight and in particular 90% to 95.5% by weight, based in each case on the total amount of monomers M-A+M-B, of at least one neutral, monoethylenically unsaturated monomer M1 having a solubility in water of at most 50 g/l at 25° C. and 1 bar; ii. 0.5% to 10% by weight, preferably 1% to 7.5% by weight and in particular 1.5% to 6.5% by weight, based in each case on the total amount of monomers M-A+M-B, of at least one neutral, monoethylenically unsaturated monomer M2 having a solubility in water of at least 100 g/l at 25° C. and 1 bar; iii. 0.05 to 0.5% by weight, preferably 0.15% to 0.5% by weight and in particular 0.3% to 0.5% by weight, based in each case on the total amount of monomers M-A+M-B, of one or more monoethylenically unsaturated monomers M3 having an acidic group; and iv. optionally from 0 to 5% by weight and in particular from 0 to 4.5% by weight, based in each case on the total amount of monomers M-A+M-B, of one or more monomers M4 having at least two non-conjugated ethylenically unsaturated double bonds; and b) at least one carbodiimide having at least two carbodiimide moieties, which are bound to an aliphatic carbon atom.

公开(公告)号：US09382442B2

公开(公告)日：2016-07-05

申请号：US14400594

申请日：2013-05-23

Applicant: BASF SE

Inventor： Jens Hartig ,  Manfred Dargatz ,  Karl Haeberle ,  Sebastian Enck

IPC: C09D133/12 ,  C08K5/29 ,  C08L33/04 ,  C09D133/10 ,  C08F265/06 ,  C09D151/00

CPC classification number: C09D133/12 ,  C08F265/06 ,  C08K5/29 ,  C08L33/04 ,  C08L2201/54 ,  C08L2308/00 ,  C09D133/10 ,  C09D151/003 ,  C08L33/066 ,  C08L33/02 ,  C08L33/14 ,  C08F220/18

Abstract: The present invention relates to aqueous binder compositions which are based on aqueous multistage polymer dispersions, to the uses of such binder compositions, and to coating compositions comprising them. The aqueous binder composition comprises: a) a polymer P in the form of an aqueous multistage polymer dispersion of dispersed polymer particles, where the polymer particles comprise a first polymer having a glass transition temperature of at least 30° C. and being made of ethylenically unsaturated monomers M-A, and a second polymer having a glass transition temperature of not more than 20° C. and being made of ethylenically unsaturated monomers M-B, where the ethylenically unsaturated monomers M-A and M-B together comprise: i. 85% to 99.45% by weight, preferably 87.5% to 97% by weight and in particular 90% to 95.5% by weight, based in each case on the total amount of monomers M-A+M-B, of at least one neutral, monoethylenically unsaturated monomer M1 having a solubility in water of at most 50 g/l at 25° C. and 1 bar; ii. 0.5% to 10% by weight, preferably 1% to 7.5% by weight and in particular 1.5% to 6.5% by weight, based in each case on the total amount of monomers M-A+M-B, of at least one neutral, monoethylenically unsaturated monomer M2 having a solubility in water of at least 100 g/l at 25° C. and 1 bar; iii. 0.05 to 0.5% by weight, preferably 0.15% to 0.5% by weight and in particular 0.3% to 0.5% by weight, based in each case on the total amount of monomers M-A+M-B, of one or more monoethylenically unsaturated monomers M3 having an acidic group; and iv. optionally from 0 to 5% by weight and in particular from 0 to 4.5% by weight, based in each case on the total amount of monomers M-A+M-B, of one or more monomers M4 having at least two non-conjugated ethylenically unsaturated double bonds; and b) at least one carbodiimide having at least two carbodiimide moieties, which are bound to an aliphatic carbon atom.