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Patent Searching and Data


Title:
FLUOROPOLYMER COMPOSITION AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP11035766
Kind Code:
A
Abstract:

To obtain a melt-processable composition excellent in chemical resistance and high-temperature resistance by selecting a composition comprising an elastomer part of a polymer comprising -CF2CF2-repeating units and specified substituted fluoroethylene repeating units and a crystalline part being a polymer containing an F-substituted polymer in a specified ratio and having a specified or smaller tensile strain.

There is provided a composition containing about 40 to about 90 wt.%, desirably about 50 to about 75 wt.% elastomeric part being a polymer comprising repeating units of formula I: CF2CF2 and repeating units of formula II: CF2CF(OCnH2n+1Om)-(wherein (n) is 1-6; and (m) is 0-3) in a molar ratio of desirably about 80:20 to about 50:50, more desirably about 75:25 to about 65:35 and a crystalline part being a polymer (e.g. a copolymer having repeating units of formulas I and II) containing an F-substituted polymer and having a tensile strain of at most 10% when tested by measurement at 100% elongation under specified conditions.


Inventors:
Bekiarian, Paul G.
Application Number:
JP1998000207164
Publication Date:
February 09, 1999
Filing Date:
July 07, 1998
Export Citation:
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Assignee:
E I DU PONT DE NEMOURS & CO
International Classes:
C08L27/18; C08F2/10; C08F2/22; C08F214/26; C08F216/14; C08F259/08; C08L29/10; (IPC1-7): C08L27/18; C08F2/22; C08F214/26; C08F216/14; C08L29/10