公开(公告)号：US20210079209A1

公开(公告)日：2021-03-18

申请号：US16772994

申请日：2018-12-18

Applicant: DSM IP ASSETS B.V.

Inventor： Michael Arnoldus Jacobus SCHELLEKENS ,  Johannes Hendrikus DE BONT ,  John BARBOSA ,  Jon Andrew CRONIN ,  Charles SHEARER ,  Matthew Stewart GEBHARD ,  Gerardus Cornelis OVERBEEK

IPC: C08L53/00 ,  C08F2/22 ,  C08F220/06 ,  C08F220/14 ,  C08F220/18 ,  C08F220/56 ,  C08F287/00 ,  C09D153/00 ,  C08K3/22 ,  C08K5/00

Abstract: The present invention relates to a waterborne dispersion comprising (A) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (B) polymer P comprising ethylenically unsaturated monomer(s) different from (i) (monomer(s) (ii)), characterized in that the amount of block copolymer is higher than 1 and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and at most 35 mg KOH per g of the block copolymer-polymer P composition; the block copolymer has a calculated glass transition temperature of higher than 10° C. and lower than 250° C.; and polymer P comprises at least 20 wt. % (relative to the total monomer composition to prepare the polymer P) of a polymer fraction with calculated glass transition temperature higher than 10° C. and lower than 100° C.

公开(公告)号：US20210070977A1

公开(公告)日：2021-03-11

申请号：US16771903

申请日：2018-12-18

Applicant: DSM IP ASSETS B.V.

Inventor： Michael Arnoldus Jacobus SCHELLEKENS ,  Johannes Hendrikus DE BONT ,  John BARBOSA ,  Jon Andrew CRONIN ,  Charles SHEARER ,  Matthew Stewart GEBHARD ,  Gerardus Cornelis OVERBEEK

IPC: C08L33/10 ,  C09D153/00 ,  C09D151/00 ,  C09D5/02 ,  C08J7/04

Abstract: The present invention further relates to a waterborne dispersion comprising (A) polymer P; (B) amphiphilic block copolymer obtained with a controlled radical polymerization process and comprising at least blocks [A] and [B], whereby block [A] comprises ethylenically unsaturated monomer(s) bearing water-soluble and/or water-dispersible functional groups (monomer(s) (i)), and block [B] comprises ethylenically unsaturated monomer(s) different from monomer(s) (i) (monomer(s) (ii)); and (C) crosslinker, characterized in that the polymer P is crosslinkable and comprises ethylenically unsaturated monomer(s) bearing crosslinkable functional groups different from monomer(s) (i) and monomer(s) (ii) (monomer(s) (iii)) in an amount of from 1 to 10 wt. %, based on the total weight of monomers used to prepare the polymer P, the amount of lock copolymer is higher than 1 wt. % and lower than 30 wt. %, based on the total weight of monomers used to prepare the block copolymer and polymer P; the acid value of the composition consisting of block copolymer and polymer P is higher than 1 and lower than 17 mg KOH per g of the block copolymer-polymer P composition.