COPOLYMER AND METHOD FOR PRODUCING THE SAME

Title:

COPOLYMER AND METHOD FOR PRODUCING THE SAME

Document Type and Number:

Japanese Patent JP2009120677

Kind Code:

A

Abstract:

To provide a copolymer providing vulcanizates which exhibit excellent heat resistance, oil resistance, and low-temperature resistance, and to provide its production method.

The copolymer is a copolymer of ethylene (X), a specified vinyl carboxylate (Y), and a specified alkyl (meth)acrylate and/or a specified alkoxyalkyl (meth)acrylate (Z), (wherein, the copolymer excludes a copolymer of ethylene (X), a specified vinyl carboxylate (Y), a specified alkyl (meth)acrylate and/or a specified alkoxyalkyl (meth)acrylate (Z), and a compound with an epoxy or chloromethyl group). For the copolymer, the copolymerization ratio between (X), (Y), and (Z) is within the range surrounded by the coordinates in the three phase diagram: (X, Y, Z)=(18, 48, 34)=(20, 55, 25)=(25, 70, 5)=(39, 31, 30)=(50, 45, 5). A method for producing the copolymer is also provided.

Inventors:

YOSHIDA KEISUKE
MIYAGAWA TAIDO
SATO TAMOTSU

Application Number:

JP2007294824A

Publication Date:

June 04, 2009

Filing Date:

November 13, 2007

Export Citation:

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Assignee:

TOSOH CORP

International Classes:

C08F218/02; C08F210/02; C08F220/12; C08F255/00

Domestic Patent References:

JPS55726A	1980-01-07
JP2003040946A	2003-02-13
JP2003146863A	2003-05-21
JPH0474745A	1992-03-10
JPS557867A	1980-01-21

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