公开(公告)号：WO2019164786A1

公开(公告)日：2019-08-29

申请号：PCT/US2019/018456

申请日：2019-02-19

Applicant: ARKEMA INC.

Inventor： LIU, Lily ,  ANDES, Keith J. ,  DEVONPORT, Wayne ,  BOUDREAUX, Matthew F.

IPC: B01J13/14 ,  C08F8/12 ,  C08F265/00

Abstract: Latex emulsions and a process of making the same that incorporates voided latex particles having a core with a hydrophilic component; at least one intermediate shell with, as polymerized units, one or more hydrophilic monoethylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof; an outer shell formed of a polymer having a Tg of at least 60? C; and a surface treatment applied to the outer shell in which a plurality of silicone oligomers with reactive functional groups are cross-linked with one another in order to provide a cross-linked outer surface. The core and the at least one intermediate shell are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles. In addition, one or more of the core, the intermediate shell, or the outer shell includes a surfactant.