Abstract: A resin composition has a first resin, a second resin incompatible with the first, and a modified elastomer having a reactive group capable of reacting with the first resin. The resin composition has a co-continuous phase structure including continuous phases A and B respectively formed of the first and second resins, dispersed domains a and b respectively distributed in the continuous phases A and B, and finely dispersed subdomains a? and b? respectively distributed in the dispersed domains a and b. The dispersed domain a includes a dispersed domain formed of at least one of the second resin and a first resin, modified elastomer reaction product, the dispersed domain b at least one of the first resin and the reaction product, and the finely dispersed subdomains a? and b? each independently at least one of the first resin, the second resin, the modified elastomer, and the reaction product.

Abstract: A resin composition has a first resin, a second resin incompatible with the first, and a modified elastomer having a reactive group capable of reacting with the first resin. The resin composition has a co-continuous phase structure including continuous phases A and B respectively formed of the first and second resins, dispersed domains a and b respectively distributed in the continuous phases A and B, and finely dispersed subdomains a? and b? respectively distributed in the dispersed domains a and b. The dispersed domain a includes a dispersed domain formed of at least one of the second resin and a first resin, modified elastomer reaction product, the dispersed domain b at least one of the first resin and the reaction product, and the finely dispersed subdomains a? and b? each independently at least one of the first resin, the second resin, the modified elastomer, and the reaction product.

Abstract: A molecular assembly comprising a host metal complex with a space formed therein, and compounds having substituents enclosed in the metal complex within the space and molecular chains bonded to the substituents and extending to the exterior of the metal complex, wherein two or more substituents are enclosed in the same space of the metal complex.

Abstract: This invention provides a polylactic acid resin composition in which stereocomplex crystals of poly-L-lactic acid and poly-D-lactic acid can be selectively crystallized to obtain polylactic acid having a sufficiently high speed of crystallization and a sufficiently high ratio of stereocomplex crystal and a molded article thereof obtained via melt molding and crystallization of the same. Such polylactic acid resin composition comprises polylactic acid capable of generating stereocomplex crystallization and an aromatic urea compound represented by formula (1): wherein R1 represents an alkylene group having 1 to 10 carbon atoms; R2 represents an alkyl group having 1 to 25 carbon atoms; and m is an integer between 1 to 6.

Abstract: A polylactic acid composition containing polylactic acid and ester-based plasticizer, wherein a content of the ester-based plasticizer is 16 to 33 wt %, and when the composition is highly deformed by stress loading as the relation between the stress and the deformation deviates from linear viscoelastic behavior and thereafter the stress is released, residual deformation measured after the stress is released is not less than 66.0% after 0.2 minute of the stress release, and is not more than 34.0% after 240 hours of the stress release.

Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.

Abstract: A molecular assembly comprising a host metal complex with a space formed therein, and compounds having substituents enclosed in the metal complex within the space and molecular chains bonded to the substituents and extending to the exterior of the metal complex, wherein two or more substituents are enclosed in the same space of the metal complex.

Abstract: This invention provides a polylactic acid resin composition in which stereocomplex crystals of poly-L-lactic acid and poly-D-lactic acid can be selectively crystallized to obtain polylactic acid having a sufficiently high speed of crystallization and a sufficiently high ratio of stereocomplex crystal and a molded article thereof obtained via melt molding and crystallization of the same. Such polylactic acid resin composition comprises polylactic acid capable of generating stereocomplex crystallization and an aromatic urea compound represented by formula (1): wherein R1 represents an alkylene group having 1 to 10 carbon atoms; R2 represents an alkyl group having 1 to 25 carbon atoms; and m is an integer between 1 to 6.

Abstract: Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.

Abstract: There are provided a polylactic acid resin composition in which stereocrystals of poly-L-lactic acid and poly-D-lactic acid can be selectively crystallized to obtain polylactic acid having a sufficiently high stereocrystals ratio, a process for producing the same, and a polylactic acid molded article obtained from the same having a sufficiently high stereocrystals ratio. The polylactic acid resin composition is characterized by comprising a polylactic acid-lamellar clay mineral bonded body consisting of a lamellar clay mineral and one of poly-L-lactic acid and poly-D-lactic acid which is bonded to the lamellar clay mineral, and the other of poly-L-lactic acid and poly-D-lactic acid which is not bonded to the lamellar clay mineral.

Abstract: A polylactic acid composition containing polylactic acid and ester-based plasticizer, wherein a content of the ester-based plasticizer is 16 to 33 wt %, and when the composition is highly deformed by stress loading as the relation between the stress and the deformation deviates from linear viscoelastic behavior and thereafter the stress is released, residual deformation measured after the stress is released is not less than 66.0% after 0.2 minute of the stress release, and is not more than 34.0% after 240 hours of the stress release.

Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.

Abstract: An aliphatic polyester composition contains a low-molecular-weight aliphatic polyester having weight-average molecular weight of 5000 to 35000 and a high-molecular-weight aliphatic polyester having weight-average molecular weight of 120000 to 1000000.

Abstract: A phenolic resin composite material includes a phenolic resin, a filler dispersed in the phenolic resin and being a reinforcement member and an organized layered clay mineral being different from the filler and dispersed uniformly in the phenolic resin. The phenolic resin composite material is improved in terms of the heat resistance as well as the mechanical strengths.

Abstract: A process for producing a polymer/filler composite material includes a mixture forming step in which there is obtained a mixture of a flake-like filler and a polymer material, and the mean area (L2), mean thickness (d) and volume fraction (c) of the flake-like filler in the mixture satisfy the following equations (1), (2) and (3): 500 nm2≦L2≦100 &mgr;m2  (1) d≦L/20  (2) 0.2d/L≦c≦4d/L  (3), and a deforming step of applying deformation to the mixture at a strain rate of no greater than 10 s−1.

Abstract: A thin injection molded article is composed of a composite resin material of organic clay 2 dispersed in a polymer 1. The polymer comprises a blend of polyphenylene oxide and a butadiene-styrene copolymer. The relationship between the maximum flow length L of the composite resin material in the thin injection molded article and the average thickness t of the thin injection molded articles satisfies the inequality: L/t≧70.

Abstract: The polylactic acid composite material of the present invention comprises a polylactic acid, a low molecular weight compound which has an amide group, and a layered clay mineral that is organically modified by means of an organic onium salt. As a result, a polylactic acid composite material that has a sufficiently rapid crystallization rate, and that is superior in terms of heat resistance, moldability and mold release characteristics can be obtained.

Abstract: A process for producing an aromatic monomer for synthesizing a self-doped conductive polymer, the process comprising: introducing an alkoxysulfonic acid group as a self-doping group to a benzene or naphthalene derivative having a hydroxyl group bonded to an aromatic ring thereof by alkanesulfonation of the hydroxyl group; protecting the self-doping group by converting to an acid halide form by sulfonyl halogenation; and introducing two chloromethyl groups as a polymerizable groups into the aromatic ring.

Abstract: A composite type conductive polymer having a phenylene vinylene backbone with a condensed hydrocarbon ring system introduced into the backbone to form a bend in a linear structure of the phenylene vinylene backbone.

Abstract: A process for producing a polymer/filler composite material includes a mixture forming step in which there is obtained a mixture of a flake-like filler and a polymer material, and the mean area (L2), mean thickness (d) and volume fraction (c) of the flake-like filler in the mixture satisfy the following equations (1), (2) and (3):