Toyo Boseki Kabushiki Kaisha

Japan Tobacco Inc.

Hiroaki Taguchi

Takeo Katsushima

Masakazu Ban

Akihiko Watanabe

Mitsuru Takahashi

Kiyotaka Shinoda

Shoichi Gyobu

Yoshimitsu Sakaguchi

Takahiro Nakajima

Satoshi Takase

Shiro Hamamoto

Kota Kitamura

Yoshio Araki

Junko Nakao

Hiroshi Tachimori

Koji Kobayashi

Shuhei Deguchi

Shoichi Aoki

Hidetaka Miyaji

Seiji Nakayama

Embodiments of the present invention are directed to a polymerization catalyst used to produce polyester. The catalyst comprises at least one metal-containing component, excluding antimony or germanium, and an organic compound component, containing at least one moiety of Ar&#x2014;O&#x2014; or Ar&#x2014;N&#x3c;, where Ar represents an aryl group.

Polymerization catalyst for polyester production, polyester, and process for producing polyester

An object of the present invention is to obtain a novel polymeric material capable of forming a solid polymer electrolyte excellent not only in processability, solvent resistance and durability/stability but also in ion conductivity by introducing sulfonic acid group or phosphonic acid group into a polybenzazole compound having excellent properties in view of heat resistance, solvent resistance, mechanical characteristics and the like. Means attaining the object of the present invention is a polybenzazole compound including an aromatic dicarboxylic acid bond unit having sulfonic acid group and/or phosphonic acid group and satisfying either a condition that inherent viscosity measured in concentrated sulfuric acid is in the range of 0.25 to 10 dl/g or a condition that inherent viscosity measured in a methanesulfonic acid solution is in the range of 0.1 to 50 dl/g. The object of the present invention can be attained also by a resin composition containing the aforementioned polybenzazole compound, a resin molding, a solid polymer electrolyte membrane, a solid polymer electrolyte membrane/electrode assembly and a method of preparing the solid polymer electrolyte membrane/electrode assembly.

Polybenzazole compound having sulfonic acid group and/or phosphonic acid group, resin composition containing the same, resin molding, solid polymer electrolyte membrane, solid polymer electrolyte membrane/electrode assembly and method of preparing assembly

A thermoplastic polyester elastomer having a crystalline melting point which satisfies the relationship: y&gE;200&plus;0.5x, a Vicat softening point which satisfies the relationship: z&gE;50&plus;1.5x, and a tensile elongation of at least 100% which is measured according to JIS K 6251, in which x is a weight percentage of polymeric units which substantially constitute hard segments of the elastomer; y is a crystalline melting point (&deg;C.); and z is a Vicat softening point (&deg;C.), which elastomer has a high melting point, while it has good heat resistance, water resistance and weather resistance.

Thermoplastic polyester elastomer and composition comprising the same

Benzylaminoethoxybenzene derivatives, production thereof and use thereof

Novel substituted acetamide compounds of the formula ##STR1## wherein R.sup.1 is hydrogen atom, a lower alkyl group, a lower acyl group, or an aryl group; R.sup.2 is cyano group or aminocarbonyl group; R.sup.3 is a halogen atom, nitro group, a lower alkoxy group, a group of the formula: --NR.sup.4 R.sup.5 (wherein R.sup.4 is hydrogen atom, a lower alkyl group or a group of the formula: --COCH.sub.2 OR.sup.1 ; R.sup.5 is hydrogen atom or a lower alkyl group), or a cyclic amino group of the formula: ##STR2## (wherein R.sup.6 and R.sup.7 are each an alkylene group having 1 to 3 carbon atoms, and X is oxygen atom or methylene), or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the amide compound as set forth above as an active ingredient.

Novel substituted acetamide compounds and use as anti-allergic agents

Novel benzothiazole derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydrogen atom, a lower alkyl group or a lower acyl group; X and Y are the same or different and are each hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro group, amino group, cyano group, trifluoromethyl group, a group of the formula: --COOR.sup.2 (wherein R.sup.2 is hydrogen atom, a lower alkyl group, an alkali metal, an alkaline earth metal, or a cation of amine), or a group of the formula: --CONR.sup.3 R.sup.4 (wherein R.sup.3 and R.sup.4 are the same or different and are each hydrogen atom or a lower alkyl group) or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the compound as set forth above as an active ingredient.

Novel benzothiazole derivatives

Novel amide compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, acetyl, or propionyl; R.sup.2 is hydrogen or chlorine; R.sup.3 is hydrogen or a group of the formula: --CO.sub.2 R.sup.6 (wherein R.sup.6 is hydrogen, lower alkyl or alkali metal); R.sup.4 is hydrogen, trifluoromethyl, cyano, aminocarbonyl, or a group of the formula: --CO.sub.2 R.sup.7 (wherein R.sup.7 is hydrogen, lower alkyl, or alkali metal); R.sup.5 is hydrogen, or a group of the formula: --CO.sub.2 R.sup.8 (wherein R.sup.8 is hydrogen, lower alkyl, or alkali metal), which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the amide compound as set forth above as an active ingredient.

Amide compounds

Novel pyrimidine compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.1 ' are each hydrogen atom, a lower alkyl, benzyl, an alkali metal, or ammonium; R.sub.2 is hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an aryl, a group of the formula: ##STR2## (wherein R.sub.3 and R.sub.4 are each hydrogen atom, a lower alkyl, or an aryl), or a group of the formula: ##STR3## [wherein R.sub.5 and R.sub.6 are each an alkylene having 1 to 3 carbon atoms, and X is oxygen atom, methylene, or a group of the formula: &gt;N-Y (wherein Y is hydrogen atom, a lower alkyl, benzyl, or an aryl)], which have excellent antiallergic activities and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing said pyrimidine compound as an active ingredient.

Pyrimidine 2,4-dioxamate compounds and pharmaceutical compositions

Growing community of inventors

Ohtsu, Japan

Hiroaki Taguchi