The Nippon Synthetic Chemical Industry Co., Ltd.

Mitsubishi Chemical Corporation

Taiji Kanda

Chizuko Furo

Takeshi Kuroda

Shusaku Mandai

Nobuaki Sato

Ayano Nakashima

Koji Hara

Jasmin Dhirajlal Monpara

Pankaj Hanumantrao Jadhav

Akihisa Matsumoto

Toshimitsu Inoue

Pradeep Ratilal Vavia

The purpose of the present invention is to provide: an EVOH resin-based composition (pellet) which has a desired melt viscosity without increasing the boron content, thereby being effective for surging prevention; and a method for producing the resin composition. The EVOH-based resin composition contains a boric acid compound and the boric acid compound contains tetracoordinated boron. An EVOH-based resin paste containing a boric acid compounds is brought into contact with an aqueous solution containing a boric acid compound and alkali metal salt at an elevated temperature and an elevated pressure so that the amount of alkali metal salt is from 300 to 1000 ppm based on the EVOH-based resin paste, thereby converting the boron of the boric acid compound to tetracoordinated structure.

Saponified ethylene-vinyl ester-based copolymer composition and producing method therefor

Provided herein is a polyvinyl alcohol fine particle suitable for a pharmaceutical binder for obtaining a pharmaceutical tablet of properties including good sustained release, high hardness, and excellent friability. The polyvinyl alcohol fine particle of the present invention contains 25 mol % or more of a gauche structure in polyvinyl alcohol molecules within a 0.8-nm region inside the particle from the particle surface.

Polyvinyl alcohol particles, pharmaceutical binder using same, pharmaceutical tablet, sustained-release pharmaceutical tablet, and method for producing polyvinyl alcohol particles

An object of the invention is to provide a crosslinking agent with which a crosslinked polymer that suffers little coloring with the lapse of time and shows excellent viscosity stability is obtained. The crosslinking agent of the invention includes a compound which contains two or more alkylhydrazide groups represented by the following general formula (1). (In formula (1), Rrepresents an alkyl group having 1-10 carbon atoms, and symbol * is a linking bond.)

Crosslinking agent, crosslinked polymer, and compound

To provide an aqueous inkjet ink composition excellent in glossiness and other ink properties and imparted with a higher viscosity without the use of a tackifier, an acrylic resin emulsion for an aqueous inkjet ink is provided, which contains a particulate acrylic resin having an acid value of 1 to 100 mgKOH/g, wherein an acid-group-containing monomer is present at a content mole ratio (As) in surface regions of particles of the particulate acrylic resin and present at a content mole ratio (At) in the overall acrylic resin particles as measured with aH spin diffusion time of 5 ms, and a ratio (As/At) of the content mole ratio (As) to the content mole ratio (At) is not less than 9.

Acrylic resin emulsion for aqueous inkjet ink, and aqueous inkjet ink composition employing the same

Growing community of inventors

Osaka, Japan

Taiji Kanda