Title:
PROCESS FOR REDUCING UNSTABLE END-GROUPS IN FLUORINATED POLYMERS
Document Type and Number:
WIPO Patent Application WO/2013/079352
Kind Code:
A1
Abstract:
A process for reducing the number of unstable end-groups in a fluorinated polymer is disclosed, said process comprising reacting a fluorinated polymer comprising unstable end-groups with fluorine in the presence of at least one (per)haloolefin comprising at least one carbon-carbon double bond and having at least one fluorine or chlorine atom on either one of the carbon atoms of said double bond. The fluorinated polymer may be selected from those polymers comprising recurring units derived from at least one ethylenically unsaturated fluorinated monomer or from fluorinated polyethers.
Inventors:
GALIMBERTI MARCO (IT)
MILLEFANTI STEFANO (IT)
TORTELLI VITO (IT)
MILLEFANTI STEFANO (IT)
TORTELLI VITO (IT)
Application Number:
PCT/EP2012/073037
Publication Date:
June 06, 2013
Filing Date:
November 20, 2012
Export Citation:
Assignee:
SOLVAY SPECIALTY POLYMERS IT (IT)
International Classes:
C08F8/22; C08F14/18; C08G65/323; C08F214/26; C08F216/14; C08F234/02
Foreign References:
| US4626587A | 1986-12-02 | |||
| EP0918060A1 | 1999-05-26 | |||
| EP1256591A1 | 2002-11-13 | |||
| EP1914251A1 | 2008-04-23 | |||
| EP0340739A2 | 1989-11-08 | |||
| GB1210794A | 1970-10-28 | |||
| US4743658A | 1988-05-10 | |||
| EP1256591A1 | 2002-11-13 | |||
| EP1256592A1 | 2002-11-13 | |||
| GB1226566A | 1971-03-31 |
Other References:
PIANCA, M. ET AL.: "End groups in fluoropolymers", J. FLUORINE CHEM., vol. 95, 1999, pages 71 - 84, XP004170520, DOI: doi:10.1016/S0022-1139(98)00304-2
Attorney, Agent or Firm:
BENVENUTI, Federica et al. (Bruxelles, BE)
Download PDF:
Claims: