Mitsubishi Chemical Industries Limited

Masatoshi Suzuki

Yoshinori Suga

Masayoshi Hasuo

Kazuhisa Kojima

Nobuaki Goko

Nobuo Enokido

Toru Tanaka

Yasuhiro Nishihara

Shigeaki Okano

Kazuo Yamaguchi

Yoshiki Aoyagi

Yoshiteru Kobayashi

Tadashi Inoue

Kunio Tsukakoshi

A laminate composed of a fire-retardant resin composition comprising a polyolefin resin and hydrate of calcium silicate containing 30% by weight or more of platy crystals and/or needle shaped crystals with an aspect ratio of 3 or higher in sheet form and having metal sheet on both sides thereof.

Fire-retarding resin composition and laminated product thereof

A process for producing a polyolefin characterized by polymerizing an olefin in the presence of a catalytic system composed of solid titanium trichloride, an organic aluminum compound, an aromatic hydrocarbon and a monocarboxylic acid ester having an olefinic double bond or an aromatic ring in the molecule thereof.

Process for producing polyolefins

A propylene-ethylene block copolymer is produced in the presence of a catalytic system essentially comprising an organoaluminum compound and a solid titanium trichloride catalytic complex having an atomic ratio of Al to Ti of less than 0.15 and having a complexing agent in two stages of polymerization;

Process for producing propylene-ethylene block copolymer

A fine solid titanium trichloride is used as a catalyst for a polymerization of an .alpha.-olefin. The solid titanium trichloride is produced by precipitating it at lower than 150.degree. C. from a liquid titanium trichloride complex in the presence of an ester having the formula ##STR1## wherein R.sup.1 and R.sup.2 respectively represent a hydrocarbon moiety and total carbon atoms of R.sup.1 and R.sup.2 are 10 or more.

Process for producing solid titanium trichloride

A process for the preparation of polyolefins, polymerizing olefins with use of a solid catalyst separated from a reaction mixture which is obtained by reducing a halogen-containing compound of vanadium with an organic aluminum compound in the presence of an ether and an organic aluminum compound.

Process for the preparation of polyolefins using a reduced vanadium

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Fujisawa, Japan

Masatoshi Suzuki