Nippon Shokubai Co., Ltd.

Hitachi, Ltd.

Other

Yale University

Mitsubishi Kasei Corporation

Kobayashi Pharmaceutical Co., Ltd.

Tanaka, Hiromichi

Baba, Masanori

Cheng, Yung-Chi

Hiromichi Tanaka

Tsuyoshi Hirata

Yoshiyuki Onda

Toru Uno

Tsutomu Yuasa

Masanori Baba

Tomotaka Nishikawa

Tomiyasu Ueta

Akihiko Yamashita

Takao Arai

Yung-Chi Cheng

Tadashi Miyasaka

Erik D De Clercq

Noboru Sakamoto

Masaru Ubasawa

Richard T Walker

Hiroko Izukashi

Masayuki Ishikawa

Akihiro Asada

Takashi Hoshino

Masaharu Kobayashi

Yuki Yasuda

Masahiko Kobayashi

Hirokatsu Kawakami

Toru Inaoka

Shigeru Ito

Daisuke Nishioka

Masaya Yamamoto

Yukuo Eguchi

Yoshimi Takashima

Hiroyuki Kimura

Toshifumi Takeuchi

Takaharu Noguchi

Seiichi Saito

Hiroshi Yamazaki

Keizo Nishimura

Shogo Iwai

Shigeki Inoue

Yasuhiko Sato

Tsutomu Noda

Toshio Awaji

Goro Sonoda

Motohiro Arakawa

Hirokazu Niwa

Hiroko Okochi

Naoko Hirano

Nobuaki Otsuki

Masami Nishida

Naoki Dobashi

Hirokazu Yamamoto

Minoru Miyagawa

Daisuke Imai

Yukiko Nishikawa

Hisamasa Kanki

Osamu Imamura

Kaname Ohta

The present invention provides an excellent heating tool in which the generation of unpleasant odors is suppressed. The present invention also provides an excellent heating tool in which changes in aroma are suppressed. The present invention further provides an excellent heating tool in which the generation of unpleasant odors and changes in aroma are suppressed even after storage. The present invention provides a method for suppressing the generation of unpleasant odors and changes in aroma in a heating tool. The present invention provides a heating tool comprising an exothermic composition containing a metal ion sequestrant, an oxidizable metal powder, a water-soluble salt, and water, wherein at least the exothermic composition is housed in an air-permeable container bag.

Heating tool

Provided is a superior heating tool which is capable of producing desired aromatic properties upon usage even after being stored for a long period of time. A heating tool comprising: an exothermic composition containing an oxidation accelerator having an iodine adsorption of not higher than 500 mg/g, an oxidizable metal powder, and water; and a fragrance, wherein at least the exothermic composition is housed in a container bag having air permeability.

This invention provides a heating device ensuring sufficient adhesive force, even when it is removed from clothing and then reattached to different clothing. The heating device of the present invention comprises a bag unitcontaining an exothermic composition A including an oxidizable metal that can generate heat by contact with air, one surface of the bag unitbeing air-permeable; an adhesive layerformed on the other surface of the bag unita first release sheetprovided on the adhesive layerto cover the adhesive layerand a second release sheetprovided on the first release sheetto cover the first release sheet, wherein the first release sheethas a release portionand a residual portion; when the second release sheetis removed from the first release sheet, the release portionis removed together with the second release sheetand the residual portionremains on the adhesive layer

Heating device

The present invention relates to novel compounds according to the general formulas I, II, III, IV or V: wherein B is nucleoside base according to the structure: and the remaining variables as defined in the specification, and pharmaceutical compositions comprising the compounds. The compounds are useful interalia as anti-viral agents in viral therapy.

Anti-viral nucleoside analogs and methods for treating viral infections, especially HIV infections

A cement admixture object of the present invention can make slump-retaining ability excellent to retain fluidity and, at the same time, can realize a viscosity of cement compositions so that work becomes easy at a field handling them, can make the state of a cement composition better. The present invention relates to a cement admixture

Cement admixture

It is an object of the present invention, which has been made in view of the above-mentioned state of the art, to provide a cement admixture capable of improving the water-reducing ability of cement compositions and the like and enhancing the strength and durability of hardened products produced therefrom and further capable of adjusting the viscosity of such compositions so as to facilitate the works at the sites of handling the same, as well as a method of producing such cement additive. A cement admixture comprising a polycarboxylic acid polymer and a nitrogen atom-containing compound having non-amide bond, wherein the mass ratio (A/B) between the mass (A) of said polycarboxylic acid polymer and the mass (B) of said nitrogen atom-containing compound having non-amide bond satisfies the relation 200&#x3e;(A/B)&#x3e;1.

Cement admixture and production method thereof

The polycarboxylic acid concrete admixture of the present invention exhibits properties such as decreasing the concrete viscosity, improving the slump-retaining ability, and suppressing bleeding water, and is improved in the ability to cement compositions or the like. The above-mentioned polycarboxylic acid concrete admixture comprises a polycarboxylic acid polymer containing a polyalkylene glycol in the side chain, wherein the polycarboxylic acid polymer is obtained by polymerizing monomer components containing an alkyl (meth)acrylate monomer and a specific polyalkylene glycol unsaturated monomer and unsaturated carboxylic acid (salt) monomer, and it has a specific weight average molecular weight.

Polycarboxylic acid concrete admixture

The present invention relates to compounds according to the general formula: wherein B is or and the remaining variables are defined in the specification, and compositions comprising the compounds. The compounds are useful as anti-viral agents in viral therapy.

It is an object of the present invention to provide a polycarboxylic acid polpolymer which improves the water reducing capacity and workability of cement compositions and the like and making them easier to handle when the fluidity and water reducing capacity are at the same levels, a method of producing the copolymer, and a cement additive and a cement composition comprising the copolymer. The present invention is further to provide a polycarboxylic acid copolymer and a cement additive which are capable of improving the strength and durability of hardening products of cement compositions, hence can advantageously be used in ultrahigh strength concrete. The present invention is polycarboxylic acid copolymers having high water reducing capacity, reducing the viscosity of cement compositions and improving the workability in applying cement. The present invention is directed to a polycarboxylic acid copolymer which is obtained by copolymerization of monomer components comprising a polyalkyleneimine unsaturated monomer (A1) and an unsaturated carboxylic acid monomer (B).

Polycarboxylic acid copolymer, production method and use thereof

The present invention provides: a production process for an alkylene oxide addition product, by which a high-molecular alkylene oxide addition product can be obtained with ordinary production facilities while the formation of by-products is suppressed; and production processes for derivatives from the alkylene oxide addition product. The present invention production process for an alkylene oxide addition product comprises the step of carrying out an addition reaction of an alkylene oxide to a hydroxyl-group-containing saturated compound in order to obtain the alkylene oxide addition product; with the production process being characterized by further comprising: the initial step of causing the alkylene oxide to add to the hydroxyl-group-containing saturated compound in an amount of not larger than 20 mols on average of the alkylene oxide per 1 mol of the hydroxyl-group-containing saturated compound to thereby obtain an alkylene oxide low-mol-addition product; and the molar-degree-of-polyaddition-adjusting step of causing the alkylene oxide to further add to the alkylene oxide low-mol-addition product as obtained in the initial step; wherein a portion of the entirety of the alkylene oxide low-mol-addition product as obtained in the initial step is used in the molar-degree-of-polyaddition-adjusting step.

Production processes for alkylene oxide addition product and its derivatives

The cement admixture and the cement admixture composite of the present invention can improve the water-reducing ability of cement compositions and the like and enhance the strength and durability of hardening products produced therefrom and further can adjust the viscosity of such compositions so as to facilitate the works at the sites of handling the same. The above-mentioned cement admixture is a cement admixture comprising a polycarboxylic acid polymer containing a specific site, and the above-mentioned cement admixture composite comprises two or more species of cement admixtures, wherein at least one of them is said cement admixture.

Cement admixture and cement admixture composite

The cement admixture of the present invention can provide viscosity decreasing ability as well as a high dispersing ability and slump loss preventing ability even in a high water reducing ratio range. The above-mentioned cement admixture comprises three components of a copolymer (A) containing a constituent unit (I) derived from the unsaturated (poly)alkylene glycol ether monomer (a) and a constituent unit (II) derived from a maleic acid monomer (b), a specific unsaturated (poly)alkylene glycol ether monomer (a) and a non-polymerizable (poly)alkylene glycol (B) having no alkenyl group.

Cement admixture, cement composition and method for laying work the same, and method for producing cement hardened product

The cement admixture of the present invention can improve the workability by displaying sufficient viscosity decreasing ability and initial dispersing ability even under a low temperature environment as well as high dispersing ability and dispersion retaining ability even in a high water reducing ratio range. The above-mentioned cement admixture comprises four components of a copolymer (A) containing a constituent unit (I) derived from the unsaturated (poly)alkylene glycol ether monomer (a) and a constituent unit (II) derived from a maleic acid monomer (b), a specific unsaturated (poly)alkylene glycol ether monomer (a), a non-polymerizable (poly)alkylene glycol (B) having no alkenyl group, and a polymer (C) having an oxyalkylene group or a polyoxyalkylene group and a carboxyl group, which is different from the copolymer (A).

Cement admixture and cement composition

It is an object of the present invention to provide a cement admixture capable of exhibiting high cement dispersing ability at low addition levels, in particular capable of displaying excellent initial dispersing ability and dispersion retaining ability even in a high water reducing ratio range, and a cement composition in which this admixture is used. A cement admixture comprising

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Yokohama, Japan

Hiromichi Tanaka