Sumitomo Seika Chemicals Co., Ltd.

Kuraray Co., Ltd.

Yuhei Funabiki

Norihiro Sugihara

Toshiaki Fujiwara

Noriaki Fukuda

Kazutoshi Terada

Yukio Ozeki

Hirotsugu Kawata

Michiyuki Nanba

Hirofumi Fujita

Kairi Kakutaka

Taiki Nishiyama

There is provided an epoxy resin composition having excellent adhesion to copper and aluminum, and having excellent flexibility in a low-temperature environment. The epoxy resin composition comprises (A) an epoxy resin and (B) a polyamide-based rubber elastomer powder.

Epoxy resin composition

To provide a cosmetic which is environmentally friendly and is excellent in all of spreadability on application, adhesion, hand feeling properties and transparency. A cosmetic including aliphatic polyester-based resin particles, wherein the aliphatic polyester-based resin particles have a volume-average particle diameter of 2 to 30 &#x3bc;m, and a ratio of particles having a particle diameter of less than 1 &#x3bc;m is 15% by volume or less and a ratio of particles having a particle diameter of more than 30 &#x3bc;m is 6% by volume or less, is provided.

Cosmetic

It is an object of the present invention to provide an aqueous ethylene-vinyl alcohol-based copolymer dispersion which is excellent in long-term storage stability and in film-forming properties even when subjected to low-temperature or short-time drying or applied to give thick coats and can give coatings showing high gas barrier performance. The prevent invention is an aqueous ethylene/vinyl alcohol-based copolymer dispersion, which comprises: (A) an ethylene/vinyl alcohol-based copolymer with an ethylene content of 15-65 mole percent and a degree of saponification of not lower than 80 mole percent, (B) a base-neutralized ethylene/&#x3b1;,&#x3b2;-unsaturated carboxylic acid-based copolymer and (C) a polyvinyl alcohol with a degree of saponification of 75-100 mole percent and a degree of polymerization of 100-3500, the content of the polyvinyl alcohol (C) being 0.5-100 parts by weight per 100 parts by weight of the ethylene/vinyl alcohol-based copolymer (A).

Aqueous ethylene/vinyl alcohol copolymer dispersion

The present invention provides a method of producing, in an industrially advantageous manner, an ethylene/vinyl alcohol copolymer aqueous dispersion which has a high concentration and is excellent in long-term storage stability and in which the resin particles in the aqueous dispersion obtained are small in particle diameter. The method of the present invention relates to producing an ethylene/vinyl alcohol copolymer aqueous dispersion, which comprises: (1) a step of dissolving an ethylene/vinyl alcohol copolymer in a mixed solvent comprising 5 to 65% by weight of water and 35 to 95% by weight of a water-soluble organic solvent, with heating, (2) a step of cooling a solution obtained in step (1) to precipitate the ethylene/vinyl alcohol copolymer, (3) a step of reducing a concentration of the water-soluble organic solvent in the mixed solvent to a level lower than 35% by weight relative to the total amount of the water and water-soluble organic solvent by adding water, and (4) a step of distilling off the water-soluble organic solvent.

Method for producing aqueous ethylene/vinyl alcohol based copolymer dispersion

The present invention provides a polyolefin-based composite resin spherical particle that gives a coating film having a matte appearance, a soft feeling, and excellent scratch resistance by being used for a coating material. The present invention also provides a coating composition containing the polyolefin-based composite resin spherical particle and a coating resin, and a coated article obtained by applying the coating composition to a substrate. The invention relates to a polyolefin-based composite resin spherical particle, which is a spherical particle obtained by mixing 100 parts by mass of a polyolefin-based resin, 40 to 1,500 parts by mass of water, and 3 to 30 parts by mass of an ethylene oxide/propylene oxide copolymer having a weight average molecular weight of 4,000 to 30,000 to prepare a mixture, emulsifying the mixture at a temperature of the highest melting point of the polyolefin-based resin or higher, and cooling the mixture from a temperature at least 25&#xb0; C. higher than the highest crystallization temperature of the polyolefin-based resin to a temperature at least 25&#xb0; C. lower than the lowest crystallization temperature of the polyolefin-based resin at a cooling speed of 0.2&#xb0; C./min or more, wherein the polyolefin-based resin is a composite resin containing 5 to 70% by mass of a partially saponified ethylene/vinyl acetate copolymer.

Growing community of inventors

Himeji, Japan

Yuhei Funabiki