Abstract: A biomass gasification power generation system including: a gas generation device that generates a combustible gas from a biomass and a gasification agent; an internal combustion engine that generates motive power from a fuel gas containing the combustible gas generated by the gas generation device; and a generator that generates electric power from the motive power generated by the internal combustion engine. The power generation system is additionally provided with a water electrolysis device that generates oxygen and hydrogen through the electrolysis of water. The gasification agent contains oxygen generated by the water electrolysis device, and the fuel gas contains hydrogen generated by the water electrolysis device. The oxygen concentration in the gasification agent is from 22 vol. % to 40 vol. %.

Abstract: A polyester resin composition containing a polyester resin and 1 to 500 ppm of ultramarine based on a total amount of the polyester resin composition, wherein the polyester resin contains dicarboxylic acid structural unit and diol structural unit, the diol structural unit contain structural unit derived from a diol having a cyclic acetal skeleton, and a content of the structural unit derived from a diol having a cyclic acetal skeleton is 1 to 60 mol % based on a total amount of the diol structural unit.

Abstract: A polyester resin composition containing a polyester resin and 1 to 500 ppm of ultramarine based on a total amount of the polyester resin composition, wherein the polyester resin contains dicarboxylic acid structural unit and diol structural unit, the diol structural unit contain structural unit derived from a diol having a cyclic acetal skeleton, and a content of the structural unit derived from a diol having a cyclic acetal skeleton is 1 to 60 mol % based on a total amount of the diol structural unit.

Abstract: Provided is a polyester resin including a diol structural unit and a dicarboxylic acid structural unit, wherein the diol structural unit includes a structural unit derived from a diol having a cyclic acetal skeleton, a content of the structural unit derived from the diol having the cyclic acetal skeleton is 1 to 80 mol % based on the total amount of the diol structural unit, and a amount of crosslinking points in the resin chain is 1.0 wt % or less.

Abstract: The polyester resin according to the present invention is a polyester resin containing a diol unit and a dicarboxylic acid unit, wherein 50 to 95% by mol of the diol unit is a unit derived from pentacyclopentadecane dimethanol represented by a predetermined formula (I) and/or a unit derived from pentacyclopentadecane dimethanol represented by a predetermined formula (II), 50 to 100% by mol of the dicarboxylic acid unit is a unit derived from an aromatic dicarboxylic acid, and both of predetermined conditions (1) and (2) are satisfied.

Abstract: The polyester resin composition according to the present invention contains a polyester resin (A) containing, as a diol unit, a unit derived from diol having a cyclic acetal skeleton, and as a dicarboxylic acid unit, a unit derived from dicarboxylic acid having a naphthalene skeleton, and a polyester resin (B) not having a cyclic acetal skeleton; and satisfies following (1) and (2): (1) a refractive index difference between the polyester resin (A) and the polyester resin (B) is 0.005 or less, the refractive index being measured with sodium D radiation as a light source; (2) a glass transition temperature difference between the polyester resin (A) and the polyester resin (B) is 35° C. or less.

Abstract: One embodiment of the present invention provides: a thermoplastic resin composition which contains a polycarbonate resin and a polyester resin that contains a diol unit having a cyclic acetal skeleton, and wherein the polyester resin contains specific amounts of phosphorus atoms and titanium atoms and the weight ratio of the phosphorus atoms to the titanium atoms is within a specific range; and a molded body which uses this thermoplastic resin composition.

Abstract: The method for producing a polyester resin containing a dicarboxylic acid structural unit and a diol structural unit having a cyclic acetal skeleton, wherein the method includes mixing and reacting an ester compound (A) having a cyclic acetal skeleton and an ester compound (B) having no cyclic acetal skeleton, and satisfies the following conditions: (1) the ester compound (A) contains a dicarboxylic acid structural unit, and a diol structural unit having a cyclic acetal skeleton, and has an intrinsic viscosity of 0.1 to 1.5 dl/g as measured at 25° C. in a mixed solution of phenol and 1,1,2,2-tetrachloroethane having a mass ratio of 6:4; and (2) the ester compound (B) comprises a dicarboxylic acid structural unit having no cyclic acetal skeleton and a diol structural unit having no cyclic acetal skeleton, and has an acid value of 1 micro equivalent/g or higher and lower than 150 micro equivalents/g.

Abstract: The polyester resin according to the present invention is a polyester resin mainly including a diol structural unit and a dicarboxylic acid structural unit, wherein 10 to 84 mol % of the diol structural unit is a structural unit derived from ethylene glycol, 16 to 90 mol % of the diol structural unit is a structural unit derived from neopentyl glycol represented by a particular formula (i), and 50 to 100 mol % of the dicarboxylic acid structural unit is a structural unit derived from a naphthalenedicarboxylic acid. Further, the optical lens according to the present invention is obtained by molding the polyester resin. Furthermore, the optical lens system according to the present invention includes the optical lens and an additional optical lens.

Abstract: The polyester resin according to the present invention is a polyester resin containing a diol unit and a dicarboxylic acid unit, wherein 50 to 95% by mol of the diol unit is a unit derived from pentacyclopentadecane dimethanol represented by a predetermined formula (I) and/or a unit derived from pentacyclopentadecane dimethanol represented by a predetermined formula (II), 50 to 100% by mol of the dicarboxylic acid unit is a unit derived from an aromatic dicarboxylic acid, and both of predetermined conditions (1) and (2) are satisfied.

Abstract: The polyester resin composition according to the present invention contains a polyester resin (A) containing, as a diol unit, a unit derived from diol having a cyclic acetal skeleton, and as a dicarboxylic acid unit, a unit derived from dicarboxylic acid having a naphthalene skeleton, and a polyester resin (B) not having a cyclic acetal skeleton; and satisfies following (1) and (2): (1) a refractive index difference between the polyester resin (A) and the polyester resin (B) is 0.005 or less, the refractive index being measured with sodium D radiation as a light source; (2) a glass transition temperature difference between the polyester resin (A) and the polyester resin (B) is 35° C. or less.

Abstract: A polyester resin having a diol unit containing a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit containing a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %: wherein A represents an aromatic ring selected from the group consisting of benzene, naphthalene, anthracene, phenanthrene and pyrene; R1 represents a C1 to C12 alkyl group, a substituted or unsubstituted C6 to C12 aryl group or a halogen atom; n represents an integer of 0 to 4; and when plural R1 are present, R1 may be the same as or different from each other.

Abstract: A method of producing a polyester resin comprising a dicarboxylate constitutional unit and a diol constitutional unit, the diol constitutional unit comprising a constitutional unit having a cyclic acetal skeleton, the method comprising reacting a diol (A) having a cyclic acetal skeleton, a bisalkyl dicarboxylate ester (B), and a diol (C) having no cyclic acetal skeleton in the presence of a basic compound (D).

Abstract: The present invention relates to a polyester resin including a diol constitutional unit and a dicarboxylic acid constitutional unit as main constitutional units, in which the diol constitutional unit contains from 70 to 95% by mol of a constitutional unit derived from ethylene glycol and from 5 to 30% by mol of a constitutional unit derived from tricyclodecane dimethanol or pentacyclopentadecane dimethanol, and the dicarboxylic acid constitutional unit contains 50% by mol or more of a constitutional unit derived from a naphthalenedicarboxylic acid, and an optical lens obtained by molding the polyester resin. According to the present invention, there are provided a polyester resin that has a high refractive index and a low Abbe number and can be molded into a good optical lens, and an optical lens obtained by molding the polyester resin.

Abstract: Provided are a medical packaging container having a polyester resin (A1) including diol units and dicarboxylic units, the diol units including at least one diol unit in an amount of 1 to 30 mol % selected from diol units having a bridged alicyclic skeleton derived from a compound represented by formula (1), formula (2), or formula (3), the dicarboxylic acid units including dicarboxylic acid units having a naphthalene skeleton in an amount of 70 mol % or more; and a manufacturing method of the polyester for the container.

Abstract: Disclosed is a glycol compound which is useful as a raw material and an intermediate for synthetic resins, additives for synthetic resins, medicines, cosmetics, food additives, surfactants and the like, further disclosed is a method for producing the compound. The glycol compound is represented by the following Formula (1): wherein R represents an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a halogen atom; n represents an integer of 1 to 4; and when n represents an integer of 2 to 4, plural R may be the same or different from each other.

Abstract: Disclosed is a glycol compound which is useful as a raw material and an intermediate for synthetic resins, additives for synthetic resins, medicines, cosmetics, food additives, surfactants and the like, further disclosed is a method for producing the compound. The above glycol compound is represented by the following Formula (1): wherein A represents a divalent linkage group comprising a condensed aromatic ring selected from the group consisting of naphthalene, anthracene, phenanthrene and pyrene; R represents an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms or a halogen atom; n represents an integer of 0 to 4; and when n represents an integer of 2 to 4, plural R may be the same or different from each other.

Abstract: A polyester resin having a diol unit containing a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit containing a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %: wherein A represents an aromatic ring selected from the group consisting of benzene, naphthalene, anthracene, phenanthrene and pyrene; R1 represents a C1 to C12 alkyl group, a substituted or unsubstituted C6 to C12 aryl group or a halogen atom; n represents an integer of 0 to 4; and when plural R1s are present, R1s may be the same as or different from each other.

Abstract: A polyester resin having a diol unit containing a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit containing a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %: wherein A represents an aromatic ring selected from the group consisting of benzene, naphthalene, anthracene, phenanthrene and pyrene; R1 represents a C1 to C12 alkyl group, a substituted or unsubstituted C6 to C12 aryl group or a halogen atom; n represents an integer of 0 to 4; and when plural R1s are present, R1s may be the same as or different from each other.

Abstract: The present invention relates to a polyester resin including a diol constitutional unit and a dicarboxylic acid constitutional unit as main constitutional units, in which the diol constitutional unit contains from 70 to 95% by mol of a constitutional unit derived from ethylene glycol and from 5 to 30% by mol of a constitutional unit derived from tricyclodecane dimethanol or pentacyclopentadecane dimethanol, and the dicarboxylic acid constitutional unit contains 50% by mol or more of a constitutional unit derived from a naphthalenedicarboxylic acid, and an optical lens obtained by molding the polyester resin. According to the present invention, there are provided a polyester resin that has a high refractive index and a low Abbe number and can be molded into a good optical lens, and an optical lens obtained by molding the polyester resin.