Sumitomo Chemical Company, Limited

Marubishi Oil Chemical Co., Ltd.

Noriyasu Yasuda

Keisaku Yamamoto

Tadayuki Ohmae

Noboru Yamaguchi

Masahiro Fukuyama

Hideaki Yamada

Yoshio Tanimoto

Haruhiko Hisada

Masahide Yoshiya

Tohru Fujiki

Mashiro Fukuyama

Yoshiyuki Komori

Kenichi Hosoda

A modifier for resin and rubber of which an active ingredient is a reaction product of a styrene-maleic anhydride copolymer (A) with a poly(alkylene oxide) monoalkyl ether (B), and/or a metal salt thereof, which modifier improves processability and properties of resins or rubbers. For example, the modifier provides resins or rubbers with antistatic properties. It also enhances the dispersibility of additives, e.g., a flame retardant or fillers incorporated in the resin or the rubber, and provides resins or rubbers with, for example, excellent flame retardancy and prevents the additive or the filler from blooming.

Modifier for resin and rubber

A rubber composition which is vulcanizable with organic peroxides and provides vulcanized rubber excellent in oil resistance, heat resistance, low-temperature resistance and compression set. The composition comprises 30 to 95 parts by weight of the following component (A) and 70 to 5 parts by weight of the following component (B) (wherein component (A)+component (B)=100 parts by weight) as well as 1 to 10 parts by weight of the following component (C) per 100 parts by weight of the total amount of the components (A) and (B):

Rubber compositions and vulcanized rubber compositions

The present invention provides a rubber composition which comprises the following components (A) and (B):

Rubber composition

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Ichihara, Japan

Noriyasu Yasuda