Title: In Situ block copolymer formation during polymerization of vinyl axomatic monomer
Application Number: 97193418 Application Date: 1997.02.26
Publication Number: 1214705 Publication Date: 1999.04.21
Approval Pub. Date: 2003.12.10 Granted Pub. Date: 2003.12.10
International Classifi-cation: C08C19/44;C08F279/02
Applicant(s) Name: The Dow Chemical Co. Address:
Inventor(s) Name: D. B. Priddy;I. Q. Li
Attorney & Agent: ren zonghua
Abstract:
    The present invention is a free radical bulk polymerization process for producing a rubber modified polymer from a vinyl aromatic monomer comprising: polymerizing the vinyl aromatic monomer in the presence of a diene rubber having at least one stable free radical group, under polymerization conditions such that a vinyl aromatic-diene block and/or graft copolymer rubber is formed.
Time: 9