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Title:
FLUOROELASTOMER COMPOSITION
Document Type and Number:
Japanese Patent JP2003012883
Kind Code:
A
Abstract:

To provide a fluoroelastomer composition having combined characteristics of improved chemical and thermal resistance, high hardness, low liquid permeability and good mechanical characteristic.

This fluoroelastomer composition comprises A) a vinylidene fluoride(VDF)-based fluoroelastomer matrix and B) a semi-crystalline fluoropolymer consisting of a semi-crystalline fluoropolymer core covered by a semi-crystalline fluoropolymer shell having bromine and/or iodine in the polymer chain, where the content of B) is 1 to 40 wt.%, preferably 5 to 35 wt.% based on the total of A)+B). The fluoropolymer B) is introduced into the fluoroelastomer A). The fluoropolymer B) is formed by a homopolymer of tetrafluoroethylene(TFE) or a copolymer of TFE with one or more monomers containing at least one ethylene type unsaturation, and has average particle size of 10 to 100 nm, preferably 10 to 60 nm.


Inventors:
ALBANO MARGHERITA
APOSTOLO MARCO
ARRIGONI STEFANO
Application Number:
JP2002145042A
Publication Date:
January 15, 2003
Filing Date:
May 20, 2002
Export Citation:
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Assignee:
AUSIMONT SPA
International Classes:
C08F259/08; C08F285/00; C08L27/16; C08L27/18; C08L51/00; (IPC1-7): C08L27/16; C08F259/08
Domestic Patent References:
JP2000239321A2000-09-05
JPH09124871A1997-05-13
JPH07316246A1995-12-05
JPH08100033A1996-04-16
JP2000239470A2000-09-05
Attorney, Agent or Firm:
Shintaro Nogawa