Mitsubishi Petrochemical Company Limited

Masaki Saito

Hiroshi Iwane

Tsutomu Isaka

Sadao Kitagawa

Shiroh Gotoh

Makoto Takeda

Takeo Shimada

Iwao Ishino

Shuhei Doi

Akiyoshi Oonishi

Shin-ichi Yamauchi

Noriyuki Okada

Hiroshi Taniguchi

Shoichi Seo

Kazuaki Isomura

Noriko Wada

Shin Kawano

Shiroh Inui

Nobuyoshi Maruyama

An optically active compound represented by formula (I): ##STR1## wherein R.sup.1 represents an alkyl group having from 6 to 18 carbon atoms or an alkoxy group having from 6 to 18 carbon atoms; A represents ##STR2## or ##STR3## wherein ring ##STR4## represents a nitrogen-containing hetero-aromatic ring; n and m each represents 0 or 1; R.sup.2 represents an alkyl group having from 1 to 12 carbon atoms; and C* is an asymmetric carbon atom. The compound of formula (I) exhibits excellent physicochemical stability, a low temperature range for the chiral smectic C phase when used either alone or in combination with other compounds, and a rapid response.

Optically active compound

A polymer prepared by subjecting to conditions of radical graft polymerization a copolymer of an .alpha.-olefin and an aliphatic nonconjugated diene and a monomer that is capable of radical polymerization with said copolymer is described. This polymer has high miscibility with a dissimilar resin and has a high practical value for use as a compatibilizing agent in blending two or more resins.

Unsaturated copolymer resin composite

An ethylene copolymer comprising an ethylene unit and an ester unit selected from ethylenically .alpha.,.beta.-unsaturated acid esters represented by the formula (I) or (II): ##STR1## wherein R.sup.1 represents a hydrogen atom or a methyl group; and R.sup.2 represents a halogenated alkyl group having from 1 to 15 carbon atoms; ##STR2## wherein R.sup.3 represents a hydrogen atom or a methyl group; and n represents 0 or 1,

Ethylene copolymer

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Ibaraki, Japan

Masaki Saito