Mitsubishi Chemical Corporation

Mitsubishi Petrochemical Company Limited

Other

Mitsubishi Yuka Fine Chemicals Co., Ltd.

Kazuyuki Hata

Kazuhide Hayama

Masato Onoe

Fumihiko Shimizu

Naomasa Sato

Takahiro Ozu

Keizo Abe

Teruaki Ashihara

Akio Tanna

Katsuhiko Yamada

Hiroshi Yui

Yukihito Zanka

Michiya Okamura

Michio Ohmori

Kouichi Nakayama

Takeshi Hatakeyama

Norihiro Umezawa

Kouich Sagisaka

A polypropylene type aqueous dispersion comprising the following components (a) to (c): wherein the component (a) has a main chain having the following features (1) and (2) and dispersion particles in the dispersion have an average particle size of at most 0.5 &#x3bc;m, Feature (1) when observing a peak derived from a carbon atom of a methyl group in a propylene unit chain part comprising a head-to-tail bond byC-NMR and fixing a chemical shift of a peak top at a peak attributable to pentad expressed by mmmm to 21.8 ppm, a ratio (S/S) of an area Sof a peak of a peak top at 21.8 ppm to a total area S of peaks at from 19.8 ppm to 22.1 ppm is at least 10% and at most 60%, and when an area of a peak (mmmr) of a peak top at 21.5 to 21.6 ppm is expressed as S, 4+2S/S&#x3e;5, and Feature (2) a content ratio (mol ratio) of propylene unit (A): other olefin unit (B) is from 100:0 to 90:10.

Polypropylene type aqueous dispersion, polypropylene type composite aqueous emulsion composition and its use

A problem of the invention is to provide a propylene copolymer which is excellent in adhesion to crystalline propylene-based polymers and which is excellent in solubility and compatibility with polar resins, a process for producing the same, and a composition containing the subject polypropylene copolymer. The invention is concerned with a polypropylene copolymer, which is characterized by having a polymer principal chain (A) derived from a propylene-based polymer having (1) a prescribed requirement as defined by theC-NMR spectral measurement and having (2) a melting point [Tm] by a differential scanning calorimeter of not higher than 100&#xb0; C., or a crystal melting heat of less than 5 J/g; and a side chain containing a polymer chain (B) which is different from the principal chain, with a weight ratio of (A)/(B) being in the range of from 20/1 to 1/20, a composition containing the subject copolymer, and a process for producing the subject copolymer.

Polypropylene containing copolymer composition and process for producing the same

This invention provides a graft modified polypropylene polymer which does not contain halogens, is excellent in certain properties such as solubility and can add good adhesiveness and coating ability to crystalline propylene polymer base materials, and a composition containing the same; and in particular, it provides a propylene polymer which contains a propylene polymer main chain having a stereo-block structure containing an isotactic block and a side chain containing a carboxylic acid group, an acid anhydride group or a carboxylic acid ester group, wherein when it is dissolved in toluene to a concentration of 10% by weight at 25&#xb0; C., the insoluble matter is 1% by weight or less based on the total polymer, and a composition containing the same.

Modified propylene polymer, composition containing the same and use thereof

An adhesive resin composition comprising a polymer of a radically polymerizable epoxy resin (I) and a monomer (c), the radically polymerizable epoxy resin (I) being a reaction product between an epoxy resin (a) and a radically polymerizable monomer (b) having a function group reactive to epoxy group or hydroxyl group in said epoxy resin (a), having an equivalent ratio (b)/(a)=0.01.about.0.9 and said monomer (c) being copolymerizable with said radically polymerizable epoxy resin (I) and containing alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer serving as an indispensable component. The adhesive resin composition has an excellent adhesion between fluorine-contained resins and metal substrates.

Adhesive resin composition

There is provided a process for preparing a laminate, comprising the step of adhering a layer of an olefin polymer and a layer of a fluororesin to each other by fusion with the aid of an adhesive polymer, the adhesive polymer being a polymerization product A prepared by copolymerizing a radical-polymerizable olefin polymer B, which is obtained by reacting an olefin polymer (a) having at least one functional group in one molecule thereof with a radical-polymerizable monomer (b) having a functional group which can react with the functional group contained in the olefin polymer (a), with a monomer (c) which comprises as essential components alkyl acrylate, alkyl methacrylate and/or a fluorine-containing unsaturated monomer and is copolymerizable with the radical-polymerizable olefin polymer B, the polymerization product A comprising from 10 to 90 wt. % of the monomer (c).

Process for the preparation of laminate

A resin composition for primer use is described, which contains a copolymer of (I) a radical-polymerizable olefin resin and (c) a monomer copolymerizable with said olefin resin (I) and containing an alkyl (meth)acrylate and/or a fluorine-containing unsaturated monomer as essential ingredients, said radical-polymerizable olefin resin (I) being a product of the reaction of (a) an olefin resin having at least one functional group per molecule with (b) a radical-polymerizable monomer having a functional group reactive to the functional group contained in said olefin resin (a). A primer composition is also described.

Resin composition for primer use and primer composition employing the

There is disclosed a polycarbonate composition which comprises having a melt flow rate of 5 to 50 g/10 min and composed of:

Injection-molded product with superior dimensional precision

A hydraulic cement composition containing specific additives and a process for producing a cement shaping using the same are disclosed. The hydraulic cement composition can be easily placed within a framework and provide a cement shaping having an improved compressive strength and an excellent appearance.

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Mie, Japan

Kazuyuki Hata