Title:
PRODUCTION OF UNSATURATED CARBOXYLIC ACID-MODIFIED COPOLYMER
Document Type and Number:
Japanese Patent JPH0551420
Kind Code:
A
Abstract:
PURPOSE:To obtain the subject copolymer having high ethylenic unsaturated carboxylic acid addition degree, excellent adhesivity, excellent printability, etc., and useful for automotive parts, packaging materials, etc., by melt-reacting a specific unsaturated copolymer resin, an ethylenic unsaturated carboxylic acid, etc., in a closed reactor. CONSTITUTION:(A) An unsaturated copolymer resin comprising (i) one kind or more of 2-12C alpha-olefin (preferably ethylene, propylene) and (ii) 0.1-50mol.% of a chain non-conjugated diene of the formula (n is 1-10; R<1>-R<3> are H, 1-8C alkyl) (preferably 4-methyl-1,4-hexadiene) and (B) an ethylenic unsaturated carboxylic acid or its derivative (e.g. maleic acid, acrylic acid) are melt-kneaded at a temperature above the melting point of the polymer in a closed reactor to obtain the objective copolymer.
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Inventors:
KIHIRA MICHIHARU
ARITOMI MITSUTOSHI
KATOU YOSHIO
ARITOMI MITSUTOSHI
KATOU YOSHIO
Application Number:
JP21369691A
Publication Date:
March 02, 1993
Filing Date:
August 26, 1991
Export Citation:
Assignee:
MITSUBISHI PETROCHEMICAL CO
International Classes:
C08F255/02; C08F255/00; (IPC1-7): C08F255/02
Attorney, Agent or Firm:
Takaya Yamamoto
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