公开(公告)号：US12162970B2

公开(公告)日：2024-12-10

申请号：US17631994

申请日：2020-07-27

Applicant: BASF SE

Inventor： Zhen Wei ,  Zhong Zeng ,  En Lin Zhang

IPC: C08F4/04 ,  C08F257/02 ,  C09D151/00

Abstract: The present invention is related to water-borne polymers polymerized by radical polymerization with azo initiators, a process for making the polymers and the application thereof. The polymers polymerized with azo initiators show superior water-whitening resistance and scrub resistance, which are desired properties for coatings applications.

公开(公告)号：US11591432B2

公开(公告)日：2023-02-28

申请号：US16305502

申请日：2017-05-24

Applicant: BASF SE

Inventor： Zhong Zeng ,  Harm Wiese ,  Rui Deng

IPC: C09D151/08 ,  C08F283/12 ,  C08F285/00 ,  C08F2/22 ,  C08F220/10

Abstract: The present invention relates to an aqueous polymer dispersion containing a multistage emulsion polymer particle. The multistage emulsion polymer particle contains a polysiloxane formed in the first stage; a transition layer formed in the second stage; and a polyacrylate formed in the third stage. The transition layer is made of silane coupling agents. The present invention also relates to a method of preparing the aqueous polymer dispersion and use of the aqueous polymer dispersion for preparing coatings.

公开(公告)号：US10087333B2

公开(公告)日：2018-10-02

申请号：US15112979

申请日：2015-01-20

Applicant: BASF SE

Inventor： Wolfgang Gaschler ,  Zhong Zeng ,  Akiko Tanabe ,  Zhaobin Zhang ,  Hexin Li ,  Cheng-Le Zhao

IPC: B01D53/54 ,  C09D7/12 ,  C09D5/02 ,  B01D53/81 ,  C09D125/14 ,  C09D175/06 ,  C09D7/63 ,  C08K5/20

Abstract: The invention relates to a coating composition comprising: (a) 10% to 99.9% by weight of resin based on the total weight of the coating composition; and (b) 0.1% to 20% by weight of a formaldehyde scavenger based on the total weight of the coating composition, wherein the formaldehyde scavenger has at least one active methylene hydrogen and is solid at room temperature. The invention relates to use of a coating composition for removing free formaldehyde from the environment, wherein the formaldehyde scavenger has at least one active methylene hydrogen and is solid at room temperature.