公开(公告)号：WO2022194996A1

公开(公告)日：2022-09-22

申请号：PCT/EP2022/056946

申请日：2022-03-17

Applicant: SIKA TECHNOLOGY AG

Inventor： CHEN, Yalei ,  ZHU, Jiali ,  YU, Chao ,  LIU, Jianghong ,  GAO, Hailang

IPC: C08F220/06 ,  C04B26/14

Abstract: The present invention relates to copolymers comprising carboxylates and at least two different monomers with polyether chains differing in the chain length of the polyether. The present invention also relates to the use of such copolymers as plasticizers for mineral binder compositions. Especially, copolymers of the present invention have been found to retain a high slump flow over longer periods of time.

公开(公告)号：WO2020192735A1

公开(公告)日：2020-10-01

申请号：PCT/CN2020/081401

申请日：2020-03-26

Applicant: SIKA TECHNOLOGY AG ,  YU, Chao

Inventor： YU, Chao ,  ZHU, Jiali ,  LIU, Jianghong ,  CHEN, Lin

IPC: C04B24/24 ,  C04B103/30 ,  C08F220/04

Abstract: Disclosed is PCE-type copolymers in powder form which can be obtained by spry-drying and are easily re-dispersed in water. The fineness and the anti-caking properties of said PCE-type copolymers in powder form, as well as their water reduction potential and influence on slump life are improved. Furthermore, disclosed is a production process of the PCE-type copolymers in powder form by a spray-drying method and their use for the improvement of mineral binder compositions and especially dry mortars.