The Nippon Synthetic Chemical Industry Co., Ltd.

Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha

Novartis Ag

Asahi Glass Company, Limited

Mitsubishi Chemical Corporation

Kyoritsu Chemical Co., Ltd.

The Nippon Synthetic Chemical

Nippon Synthetic Industry Co., Ltd.

Basf Se Corporation

Mitsuo Shibutani

Masahiro Saito

Kaoru Inoue

Norihito Sakai

Takamasa Moriyama

Shusaku Mandai

Kiyoharu Kitamura

Bernhard Seiferling

Hiroyuki Tanaka

Shigeru Aida

Gabriel Skupin

Yuichi Takahashi

Eiichi Nishi

Yasuo Matsuzawa

Satoshi Yamazaki

Shintaro Fukunaga

Katsuhiko Katsuma

Yasuhiro Hirano

Yasuhiro Aoki

Shinta Miyazumi

Kazutoshi Tsuji

Hiroki Masumoto

Seiji Maeda

Shuichi Kitamura

Ikko Matsui

Koichi Takahashi

Kinji Taki

Masaaki Yamada

Misa Kuwada

Jiro Tsuchiya

Kouji Hara

Hirohiko Miura

Masato Aoyama

Kiniyasu Kato

Takahiro Minowa

Akinobu Inakuma

Lars Boerger

Tomotake Yano

Toshihiro Shimizu

Takaaki Murahashi

Kenji Kikuchi

Shinya Wakimoto

Yuzo Shomura

Taichi Uemura

Kazuo Aiba

Shinji Yuno

The present invention relates to a secondary battery negative electrode binder composition with which a stable negative electrode active material layer can be formed, which can follow volumetric changes in the negative electrode, whereby a secondary battery can be manufactured that achieves a high charge/discharge capacity and allows for improvement in charge/discharge cycle characteristics. Provided is a binder composition for fabricating a secondary battery negative electrode, containing an element capable of forming an alloy with lithium as an active material, which is a secondary battery negative electrode binder composition comprising an emulsion in which polymer particles derived from an ethylenically unsaturated monomer are dispersed in an aqueous solution of a polyvinyl alcohol-based resin, wherein the ratio of the polyvinyl alcohol-based resin/polymer particles is 60/40 to 99/1, as a weight ratio of resin solids.

Secondary battery negative electrode binder composition, secondary battery negative electrode, and secondary battery

The present invention provides a coating film having a high level of heat resistance and a coating composition from which the coating film can be obtained. The coating composition of the invention includes (A) an emulsion which includes a polyvinyl alcohol-based resin as a dispersing agent, an acrylic resin as a dispersoid, and water as a dispersion medium and (B) fibrous metal oxide microparticles, wherein the fibrous metal oxide microparticles have an average major-axis length of 10 to 2,500 nm and an average aspect ratio of 10 to 450.

Coating composition, coating film obtained therefrom, multilayer structure, and process for producing multilayer structure

The present invention provides a crosslinkable prepolymer which can be used to produce crosslinked polymeric materials (or contact lenses containing the same) having a high strength and excellent durability. The present invention relates to a polyvinyl alcohol-based prepolymer containing a unit having a pendant 1,2-diol containing group and a unit having a specific crosslinkable functional group, as well as a molding using the same.

Crosslinkable polymer

The present invention provides a binder for a lithium ion secondary battery electrode that has good adhesive properties and a low degree of swelling with respect to an electrolytic solution. There is used a binder for a lithium ion secondary battery electrode, which comprises a polyvinyl acetal-based resin (A) containing structural units represented by chemical formulae (1) to (3): (R1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms), and (R2 is a functional group containing an ethylenically unsaturated bond).

Binder for lithium ion secondary battery electrode, production method for lithium ion secondary battery electrode, lithium ion secondary battery electrode, and lithium ion secondary battery

This is to provide an aqueous metal surface treatment agent for a lithium ion secondary battery which can improve interlaminar adhesiveness between a metal member and a resin coating layer such as a film or a coated film, and solvent resistance without using trivalent chromium. The aqueous metal surface treatment agent for a lithium ion secondary battery comprises a polyvinyl alcohol resin containing 2 to 15 mol % of a 1,2-diol structural unit represented by the formula (1): Having a degree of saponification of 90 to 99.9 mol % and an average degree of polymerization of 250 to 3000; and a metallic crosslinking agent.

Aqueous metal surface treatment agent for lithium ion secondary battery

Disclosed is a resin composition comprising a melt-moldable side chain 1,2-diol-containing PVA-based resin (A), and fluororesin containing a polar functional group capable of reacting with or forming hydrogen bond(s) with hydroxyl group (B). The component (A) and the component (B) have excellent affinity, and therefore if either the component (A) or component (B) becomes matrix, the other can be finely dispersed into the matrix, thus providing a resin composition having excellent gas-barrier property, solvent resistance, and bending fatigue resistance. The present invention also provides emulsified dispersion and binder in which the resin composition is used.

Resin composition and use thereof

Provided is a resin composition from which a melt molded product which is excellent in transparency, gas barrier property and flexibility and has biodegradability can be obtained. The present invention relates to a resin composition, which comprises a polyvinyl alcohol-based resin (i) comprising a structural unit represented by the following general formula (1) and an aliphatic-aromatic polyester (ii) comprising a specific component, wherein each of R, Rand Rindependently represents a hydrogen atom or an organic group, X represents a single bond or a bonding chain, and each of R, Rand Rindependently represents a hydrogen atom or an organic group. 

Resin composition and molded product thereof

The present invention provides a polyvinyl acetal-based resin which has a high elastic modulus, is excellent in solubility to an alcoholic solvent, and gives a highly transparent alcohol solution. The polyvinyl acetal-based resin is obtained by acetalizing a polyvinyl alcohol-based resin (A) which has 0.1 to 1.5% by mol of a 1,2-diol structural unit represented by the following general formula (1) and a degree of saponification of 98.5% by mol or more: wherein R, R, and Reach independently represents a hydrogen atom or an organic group; X represents a single bond or a bonding chain; and R, R, and Reach independently represents a hydrogen atom or an organic group.

Polyvinyl acetal-based resin

There is provided a resin composition affording a melt-molded article having excellent gas barrier properties and flex crack resistance. The present invention relates to a resin composition comprising a polyvinyl alcohol resin (A) having a 1,2-diol structural unit represented by the following general formula (1), a styrene-based thermoplastic elastomer (B), and a polyamide graft block copolymer (C) containing a polymer block of an aromatic vinyl compound and a polymer block of an olefinic compound in a main chain and having a graft chain composed of a polyamide: wherein each of R, R, and Rindependently represents a hydrogen atom or an organic group, X represents a single bond or a linking chain, and each of R, R, and Rindependently represents a hydrogen atom or an organic group.

Resin composition and molded article thereof

The present invention provides a polyvinyl alcohol-based film for optical uses, which is excellent in stretching property and is used for producing a polarizing film excellent in polarization performance throughout the visible light wavelength range, particularly in the vicinity of the wavelength of 460 nm. The invention relates to a polyvinyl alcohol-based film for optical uses comprising a polyvinyl alcohol-based resin, wherein the polyvinyl alcohol-based resin is composed of only a polyvinyl alcohol-based resin (A) containing a 1,2-glycol bond at a side chain and the amount of the 1,2-glycol bond at a side chain is from 0.01 to 6% by mol, or a polyvinyl alcohol-based film for optical uses comprising a polyvinyl alcohol-based resin, wherein the polyvinyl alcohol-based resin includes a polyvinyl alcohol-based resin (A) containing a 1,2-glycol bond at a side chain and a polyvinyl alcohol-based resin (B) other than the polyvinyl alcohol-based resin (A) and satisfies the following expression (1):0.01&#x2266;/()&#x2266;6&#x2003;&#x2003;(1)wherein A represents a content ratio (weight ratio) of the polyvinyl alcohol-based resin (A) based on a total amount of the polyvinyl alcohol-based resin (A) and the polyvinyl alcohol-based resin (B), B represents a content ratio (weight ratio) of the polyvinyl alcohol-based resin (B) based on the above total amount, and G represents an amount (% by mol) of the 1,2-glycol bond at a side chain.

Polyvinyl alcohol-based film for optical use, polarizing film, and polarizing plate

This invention provides an aqueous emulsion, which comprises a polyvinyl alcohol-based resin, as the dispersant, and a polymer comprising a structural unit derived from an ethylenically unsaturated monomer, as the dispersoid, from which a film having excellent transparency can be obtained, and which is excellent in mechanical stability, chemical stability, freezing stability and storage stability, and a method for producing the same, and relates to an aqueous emulsion which has an average particle size of the dispersoid of from 100 to 450 &#x3bc;m and an apparent grafting efficiency of the polyvinyl alcohol-based resin of from 65 to 75% based on the dispersoid, and a method for producing the same.

Aqueous emulsion and production method thereof

The present invention provides a polyvinyl alcohol-based resin composition having less coloration from melt processing and having high aging stability of the melt viscosity comprising a polyvinyl alcohol-based rein having a structural unit represented by the following formula (1) and having an absorbance of 0.1 to 0.3 of 280 nm in an ultraviolet absorbance spectrum as a 4 mass % aqueous solution, a carboxylic acid and an alkaline (earth) metal salt, wherein when an aqueous solution of the polyvinyl alcohol-based resin composition is prepared so as to have a content of the polyvinyl alcohol-based resin of 4 mass %, the pH of the aqueous solution at 20&#xb0; C. is from 5.5 to 7: 

Polyvinyl alcohol-based resin composition

This invention provides a chaff molding which is excellent in a compressive strength. Said chaff molding comprises a chaff and a polyvinyl alcohol-based resin having a 1,2-diol structure as a side chain.

Chaff molding and production method thereof

An object of the present invention is to provide a new acetoacetic ester group-containing polyvinyl alcohol-based resin that contains less amount of water-insoluble matter and is excellent in transparency and viscosity stability when converted into an aqueous solution, and that realizes excellent water resistance by combined use of a crosslinking agent. The invention provides an acetoacetic ester group-containing polyvinyl alcohol-based resin containing a structural unit represented by the general formula (1): wherein at least one of Rand Rrepresents an acetoacetyl group, R, R, R, R, Rand Reach independently represents an arbitrary substituent, and X represents a single bond or an arbitrary bonding chain.

Acetoacetic ester group-containing polyvinyl alcohol-based resin, resin composition, and uses thereof

Disclosed is a polyvinyl alcohol resin composition capable of providing a melt-molded article with superior gas barrier properties and flex crack resistance. The resin composition comprises (A) a PVA resin having 1,2-diol unit in side chain thereof; and (B) a mixture of block copolymers each having an aromatic vinyl polymer block, and a conjugated diene polymer block and/or hydrogenated thereof, wherein the (B) mixture of block copolymers includes (B1) a block copolymer having no carboxyl group and (B2) a block copolymer modified with a carboxyl group-containing compound.

Polyvinyl alcohol resin composition and molded article thereof

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Osaka, Japan

Mitsuo Shibutani