Invention Grant
- Patent Title: Dispersed phase polymerization of halogenated vinyl monomers in the presence of live reactive stabilizers
- Patent Title (中): 在活性活性稳定剂存在下卤代乙烯基单体的分散相聚合
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Application No.: US14375323Application Date: 2013-01-30
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Publication No.: US09255163B2Publication Date: 2016-02-09
- Inventor: Mathias Destarac , James Wilson
- Applicant: RHODIA OPERATIONS
- Applicant Address: FR Paris
- Assignee: Rhodia Operations
- Current Assignee: Rhodia Operations
- Current Assignee Address: FR Paris
- Agency: Osha • Liang LLP
- Priority: FR1200292 20120131; FR1202795 20121018
- International Application: PCT/EP2013/051793 WO 20130130
- International Announcement: WO2013/113752 WO 20130808
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F12/20 ; C08F14/18 ; C08F14/04 ; C08F14/06 ; C08L53/00 ; C08F259/04 ; C08F14/08 ; C08F293/00 ; C09D153/00 ; C09J153/00 ; C08F2/20 ; C08F214/08 ; C08F2/38 ; C08F214/22 ; C08L27/08
Abstract:
The present invention concerns a method for the dispersed phase polymerization of halogenated vinyl compounds, having the formula RbRcC═CX1X2, where: X1═F or CI, X2═H, F or CI, each of Rb and Rc, separately represents: —H, CI, F; or—an alkyl group, preferably chlorinated and/or fluorinated, and more advantageously perchlorinated or perfluorinated, comprising a step (E1) wherein said monomers are introduced into an aqueous phase together with—at least one source of free radicals; and—at least one reactive stabilizer comprising a polymer chain and a thiocarbonylthio-S group (C═S)—, said polymer chain comprising non-(N vinyl lactam)monomer units.
Public/Granted literature
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