公开(公告)号：US20230303819A1

公开(公告)日：2023-09-28

申请号：US18124000

申请日：2023-03-21

Applicant: BASF SE

Inventor： Kaliappa RAGUNATHAN ,  Timothy KLOTS

IPC: C08L33/12 ,  C08L33/08 ,  C09D133/08 ,  C09D133/12 ,  C09D5/00 ,  C08F220/14 ,  C08F220/18

CPC classification number: C08L33/12 ,  C08L33/08 ,  C09D133/08 ,  C09D133/12 ,  C09D5/00 ,  C08F220/14 ,  C08F220/1802 ,  C08L2207/53 ,  C08L2201/50

Abstract: The present disclosure provides multilayer particles comprising (i) a first layer comprising a first copolymer with an Mn of greater than 50,000 g/mol derived from one or more soft ethylenically-unsaturated monomers, and one or more phosphorus-containing monomer; and (ii) a second layer surrounding at least a portion of the first layer comprising a second polymer having an Mn of 500 g/mol to 50,000 g/mol, derived from one or more ethylenically-unsaturated monomer, and at least one ethylenically unsaturated acid monomer, wherein the second layer is prepared by a high temperature polymerization process. The present disclosure further provides methods of making the multilayer particles.

公开(公告)号：US20220363938A1

公开(公告)日：2022-11-17

申请号：US17761603

申请日：2020-09-16

Applicant: BASF SE

Inventor： Kaliappa RAGUNATHAN

IPC: C09D133/08 ,  C09D125/08 ,  C09D133/10

Abstract: Disclosed herein are coating compositions with enhanced adhesion to a variety of different substrates. In some embodiments, the coating can comprise at least one copolymer derived from a monomer mixture that includes tert-butyl acrylate.

公开(公告)号：US20240182745A1

公开(公告)日：2024-06-06

申请号：US18285663

申请日：2022-03-31

Applicant: BASF SE

Inventor： Kaliappa RAGUNATHAN

IPC: C09D151/00 ,  C08F265/04 ,  C09D7/63

CPC classification number: C09D151/003 ,  C08F265/04 ,  C09D7/63

Abstract: Disclosed herein are coating compositions with enhanced stain removal properties including easy removal of hydrophobic and hydrophilic stains. In some embodiments, the coating comprises multistage polymers, as well as coating compositions containing multistage polymers for use in a variety of applications providing easy stain removal.

公开(公告)号：US20230012924A1

公开(公告)日：2023-01-19

申请号：US17785889

申请日：2020-12-14

Applicant: BASF SE

Inventor： Kaliappa RAGUNATHAN

IPC: C08F257/02 ,  C09D151/00 ,  C09D125/06 ,  C08F212/08

Abstract: Multiphase polymers comprising crosslinking monomers and polyfunctional amine are disclosed. The multiphase polymer comprises a first phase polymer having a Tg from 60° C. to 240° C., a second phase polymer having a Tg from 40° C. to 240° C., and a soft phase polymer having a Tg from -25° C. to 30° C. The crosslinking monomers include a triacrylate such as trimethylol propane triacrylate, an unsaturated alkoxysilane, and an unsaturated keto monomer reactive with the polyfunctional amine. In contrast to conventional knowledge, incorporation of trimethylolpropane triacrylate reduces the minimum film forming temperature of multiphase polymers. This unusual reduction in MFFT helps to reduce the VOC requirement to form a good film at low VOC. The other crosslinking monomers including unsaturated alkoxy silane and unsaturated keto monomer which react with the polyfunctional amine improve print resistance, block resistance and lower the tackiness of paint films. The multiphase polymer is particularly suitable for use in deep base paints.