COPOLYMERS OF TETRAFLUOROETHYLENE AND PERFLUOROALKYLVINYLIC ETHERS USED IN THE PRODUCTION OF THERMAL-AGGRESSION RESISTANT ARTICLES

Title:

COPOLYMERS OF TETRAFLUOROETHYLENE AND PERFLUOROALKYLVINYLIC ETHERS USED IN THE PRODUCTION OF THERMAL-AGGRESSION RESISTANT ARTICLES

Document Type and Number:

WIPO Patent Application WO2000008076

Kind Code:

A8

Abstract:

The present invention relates to vulcanisation agents containing copolymers of tetrafluoroethylene and perfluoroalkylvinylic ethers which can be used as sealing materials in a high-temperature aggressive environment. The copolymers of the present invention correspond to structural formula (1) in which n ranges from 42 to 70 mole %, m ranges from 25 to 55 mole %, p ranges from 1 to 4 mole % and a ranges from 1 to 7 mole % for a molecular weight of between 100000 and 200000. These copolymer-containing vulcanisation agents exhibit good physical-mechanical indices, a high thermal resistance in a stress state as well as a high tensile stress index at an elongation of 100 %.

Inventors:

VOLKOVA MARGARITA ALEXEEVNA (RU)
GUBANOV VIKTOR ANDREEVICH (RU)
KORMER VITALY ABRAMOVICH (RU)
KUZNETSOV ALEXANDR LVOVICH (RU)
MANUILOVA ELENA ANDREEVNA (RU)
KHRISTIANCHIK BORIS ANDREEVICH (RU)

Application Number:

PCT/RU1999/000132

Publication Date:

July 27, 2000

Filing Date:

April 27, 1999

Export Citation:

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Assignee:

G UNITARNOE PREDPR NII SINT KA (RU)
VOLKOVA MARGARITA ALEXEEVNA (RU)
GUBANOV VIKTOR ANDREEVICH (RU)
KORMER VITALY A (RU)
KUZNETSOV ALEXANDR LVOVICH (RU)
MANUILOVA ELENA ANDREEVNA (RU)
KHRISTIANCHIK BORIS ANDREEVICH (RU)

International Classes:

C08F214/18; C08F214/26; C09K3/10; (IPC1-7): C08F214/26; C09K3/10

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