Mitsubishi Chemical Corporation

Masato Onoe

Fumihiko Shimizu

Kazuyuki Hata

Naomasa Sato

Teruaki Ashihara

Akio Tanna

Toshiya Seko

Kenji Takasaki

Yukihito Zanka

Yuuta Kumano

Kouichi Nakayama

Yongwoo Shin

Yongjun Jang

Osamu Nisizawa

A resin dispersion having, dispersed in water with a 50% particle diamter of at most 0.5 &#x3bc;m, a polymer (C) having a hydrophilic polymer (B) or an acidic group bonded to a propylene/&#x3b1;-olefin copolymer (A) as a copolymer of propylene with an &#x3b1;-olefin other than propylene, where the copolymer (A) has a propylene content of at least 50 mol% and less than 100 mol% and the copolymer (A) has a weight average molecular weight Mw of at least 10,000 and a molecular weight distribution Mw/Mn of at most 3.5, and the resin dispersion has a surfactant content of at most 15 parts by weight per 100 parts by weight of the polymer (C).

Resin dispersion, coating material, laminate, and processes for their production

To provide an aqueous dispersion of a resin wherein dispersed particles are stable with fine particle sizes and whereby bleeding out is suppressed, which is thus useful as e.g. a surface treating agent for a polyolefin substrate, an adhesive or a coating material. A resin dispersion having dispersed in water a polymer (C) having a hydrophilic polymer (B) bonded to a polyolefin (A) in a ratio of (A):(B)=100:5 to 100:500 (weight ratio); a method for producing the resin dispersion; and a coating material and a laminate, employing it.

Aqueous resin dispersion, method for its production, coating material and laminate

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

Crystalline olefin resin composition

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Mie, Japan

Masato Onoe