Tonen Chemical Corporation

Hideaki Wakabayashi

Hiroyuki Ozaki

Satoshi Ueki

Takeshi Ishihara

Sadakatsu Suzuki

Kunihiko Imanishi

Masatoshi Horii

Mitsuhiro Nishida

A modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] in a specific range and modified with a specific compound, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives to have well-balanced properties of affinity for polypropylene-based materials, thermal stability, and high solubility in organic solvents; and a process for producing same. More particularly, the modified polypropylene which is a polypropylene having a value of racemic diad fraction [r] of 0.51 to 0.88, determined byC-NMR analysis, and chemically modified with a compound serving as a modifier, e.g., (meth)acrylic acids, and their derivatives or styrene derivatives; and the process for producing the modified polypropylene, wherein the polypropylene having a value of racemic diad fraction [r] in the above range is reacted with at least one type of the compound serving as the modifier in the presence of a radical initiator.

Modified polypropylene and process for producing same

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Yokohama, Japan

Hideaki Wakabayashi