Title:
END GROUP CONVERSION METHOD AND TERMINAL STABILIZING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/156996
Kind Code:
A1
Abstract:
Provided are an end group conversion method and a terminal stabilizing method which are capable of converting an unstable end group in a fluorine-containing polymer into a carboxylic acid fluoride group with a high conversion rate. In the presence of 50 mol or more of molecular oxygen with respect to 1 mol of an unstable end group of a fluorine-containing polymer, the fluorine-containing polymer is heated for one hour or more at 200-400°C while the fluorine-containing polymer is in contact with the molecular oxygen and 50-100 mol% of the unstable end group is converted into a carboxylic acid fluoride group.
Inventors:
ABE TAKEFUMI (JP)
ASAKAWA AKIHIKO (JP)
ASAKAWA AKIHIKO (JP)
Application Number:
PCT/JP2014/057864
Publication Date:
October 02, 2014
Filing Date:
March 20, 2014
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C08F8/06; C08F14/18; C08F34/02
Domestic Patent References:
| WO2005049661A1 | 2005-06-02 |
Foreign References:
| JP2003313236A | 2003-11-06 | |||
| JPH11152310A | 1999-06-08 | |||
| JP2000198813A | 2000-07-18 | |||
| JPH06279537A | 1994-10-04 |
Other References:
See also references of EP 2980105A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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