公开(公告)号：US20190291096A1

公开(公告)日：2019-09-26

申请号：US16302335

申请日：2017-06-19

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ROHM AND HAAS COMPANY

Inventor： William Carlin ,  Patricia Crawford ,  Martin Deetz ,  John C. Rohanna ,  Alfred K. Schultz ,  Lauren Versagli

IPC: B01J49/09 ,  B01J41/05 ,  B01J41/14 ,  B01J39/05 ,  B01J39/20 ,  B01J47/04 ,  B01J49/53 ,  B01J49/57 ,  C02F1/28

Abstract: Provided is a method of treating a vinyl aromatic resin (I) comprising (a) bringing the vinyl aromatic resin (I) into contact with an alcohol, and maintaining the contact between the vinyl aromatic resin (I) and the alcohol for 10 minutes or more, and (b) bringing the vinyl aromatic resin into contact with a base. wherein the vinyl aromatic resin (I), prior to steps (a) and (b), has benzyl chloride groups, benzyl alcohol groups, and methylene bridge groups.