Abstract: This polyethylene furanoate has an intrinsic viscosity of 0.95 - 1.50 dl/g. Said intrinsic viscosity is measured (the Huggins constant is defined as 0.32) at 30° C. by using an Ubbelohde viscometer, after dissolving 0.25 g of the polyethylene furanoate in 50 ml of a solvent mixture of phenol/1,1,2,2-tetrachloroethane = 50/50 (weight ratio).

Abstract: There is provided a polyester resin including a 2,5-furandicarboxylic acid unit and a cyclohexanedimethanol unit in a main chain, in which the polyester resin is high in molecular weight, has heat resistance and hydrolysis resistance, and is excellent in mechanical properties and melt heat stability. There is also provided a method for producing a polyester resin having the above characteristics. A polyester resin including a 2,5-furandicarboxylic acid unit and a 1,4-cyclohexanedimethanol unit as main constituent components, wherein the following (I) and (II) are satisfied: (I) the reduced viscosity (?sp/c) is 0.7 dL/g or more; and (II) the sum of a cyclovinylidene terminal and a methylcyclohexene terminal is 80 ?eq/g or less.

Abstract: There is provided a polyester resin including a 2,5-furandicarboxylic acid unit and a cyclohexanedimethanol unit in a main chain, in which the polyester resin is high in molecular weight, has heat resistance and hydrolysis resistance, and is excellent in mechanical properties and melt heat stability. There is also provided a method for producing a polyester resin having the above characteristics. A polyester resin including a 2,5-furandicarboxylic acid unit and a 1,4-cyclohexanedimethanol unit as main constituent components, wherein the following (I) and (II) are satisfied: (I) the reduced viscosity (?sp/c) is 0.7 dL/g or more; and (II) the sum of a cyclovinylidene terminal and a methylcyclohexene terminal is 80 ?eq/g or less.

Abstract: There is provided a polyester resin including a 2,5-furandicarboxylic acid unit and a cyclohexanedimethanol unit in a main chain, in which the polyester resin is high in molecular weight, has heat resistance and hydrolysis resistance, and is excellent in mechanical properties and melt heat stability. There is also provided a method for producing a polyester resin having the above characteristics. A polyester resin including a 2,5-furandicarboxylic acid unit and a 1,4-cyclohexanedimethanol unit as main constituent components, wherein the following (I) and (II) are satisfied: (I) the reduced viscosity (?sp/c) is 0.7 dL/g or more; and (II) the sum of a cyclovinylidene terminal and a methylcyclohexene terminal is 80 ?eq/g or less.

Abstract: Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.

Abstract: Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.

Abstract: The object of the present invention is to provide a biodegradable label for in-mold forming, which is excellent in water resistance, is printable to allow for printing letters, or the like, by various printing methods, and is biodegradable in a natural environment; and to provide a biodegradable container attached with this biodegradable label for in-mold forming. In the present invention, the gist of the first invention is a biodegradable label for in-mold forming, comprising a laminate film (a/b), having a film (a), comprising a biodegradable resin (A), and a film (b), comprising a heat-sealable biodegradable resin (B); and the gist of the second invention is a biodegradable container attached with this biodegradable label for in-mold forming.

Abstract: An aliphatic polyester polyether copolymer is provided having an aliphatic polyester moiety comprising 35 to 50 molar % of an aliphatic diol unit, 35 to 50 molar % of an aliphatic dicarboxylic acid unit and 0 to 30 molar % of an aliphatic oxycarboxylic acid unit and a polyether moiety, wherein ?sp/C is not less than 1.40 and the ratio by weight of the polyether moiety to the aliphatic polyester polyether copolymer is 0.1 to 90% by weight.

Abstract: The object of the present invention is to provide a biodegradable label for in-mold forming, which is excellent in water resistance, is printable to allow for printing letters, or the like, by various printing methods, and is biodegradable in a natural environment; and to provide a biodegradable container attached with this biodegradable label for in-mold forming. In the present invention, the gist of the first invention is a biodegradable label for in-mold forming, comprising a laminate film (a/b), having a film (a), comprising a biodegradable resin (A), and a film (b), comprising a heat-sealable biodegradable resin (B); and the gist of the second invention is a biodegradable container attached with this biodegradable label for in-mold forming.

Abstract: The object of the present invention is to provide an aliphatic polyester polyether copolymer having biodegradability and a sufficient mechanical strength for practical use. An aliphatic polyester polyether copolymer having an aliphatic polyester moiety comprising 35 to 50 molar % of an aliphatic diol unit, 35 to 50 molar % of an aliphatic dicarboxylic acid unit and 0 to 30 molar % of an aliphatic oxycarboxylic acid unit and a polyether moiety, wherein ?sp/C is not less than 1.40 and the ratio by weight of the polyether moiety to the aliphatic polyester polyether copolymer is 0.1 to 90% by weight.

Abstract: The object of the present invention is to provide a biodegradable label for in-mold forming, which is excellent in water resistance, is printable to allow for printing letters, or the like, by various printing methods, and is biodegradable in a natural environment; and to provide a biodegradable container attached with this biodegradable label for in-mold forming. In the present invention, the gist of the first invention is a biodegradable label for in-mold forming, comprising a laminate film (a/b), having a film (a), comprising a biodegradable resin (A), and a film (b), comprising a heat-sealable biodegradable resin (B); and the gist of the second invention is a biodegradable container attached with this biodegradable label for in-mold forming.

Abstract: A method for producing a liquid crystalline polyester, which comprises reacting compounds of the following formulas: ##STR1## and a dicarboxylic acid of the following formula ##STR2## wherein R.sup.1 is a bivalent aromatic hydrocarbon group having from 6 to 18 C atoms as starting material, for polycondensation in a molten state.

Abstract: A liquid crystalline polyester comprising dicarboxylic acid units of the following formula (1): ##STR1## wherein R.sup.1 is a bivalent aromatic hydrocarbon group having from 6 to 18 carbon atoms, diol units of the following formula (2):--OCH.sub.2 CH.sub.