Abstract: An emboss pattern processing apparatus for transferring an emboss pattern onto a thermoplastic resin sheet includes an emboss patterning roller and a lustering device having a mirror face member. The emboss patterning roller includes a roller body having a face embossed with the pattern and sealing rings attached on each side face of the roller body. The roller body and the sealing rings have a passage for flowing a cooling medium from one sealing ring through the roller body to the other sealing ring.

Abstract: Provided are a polyarylene sulfide having a chloroform soluble content of at most 0.5% by weight and having an inherent viscosity &eegr;inh of from 0.05 to 0.4; a polyarylene sulfide resin composition comprising a polyarylene sulfide and an inorganic filler, of which the chloroform soluble content is at most 0.5% by weight relative to the polyarylene sulfide in the composition; car parts produced through injection molding of the composition; and a method for producing a polyarylene sulfide. The polyarylene sulfide has a reduced content of low-molecular components, and has well balanced properties of fluidity, flexural strength and impact resistance.

Abstract: A catalyst for olefin polymerization, which is obtained by contacting (A) a compound of a transition metal of Groups 4 to 6 of the Periodic Table, (B) an organoaluminiumoxy compound, and optionally (C) a carrier with each other, and for which they are exposed to elastic waves at least in any step of contacting them with each other. Preferably, the elastic waves are ultrasonic waves falling between 1 and 1000 kHz. Provided are high-activity metallocene catalysts for olefin polymerization. As having high polymerization activity, they are favorable to vapor-phase or slurry polymerization for producing olefinic polymers.

Abstract: Provided is a production process for polyarylene sulfide having a high molecular weight and an excellent heat stability. It is a production process for polyarylene sulfide by reacting a dihalogenoaromatic compound with metal sulfide in a polar solvent, wherein all or a part of water required for the reaction is added on a condition that the reaction system is 100° C. or higher, whereby obtained is polyarylene sulfide which is reduced in an intrinsic viscosity [&eegr;] by 0.05 deciliter/g or less at 206° C. when added to an N-methyl-2-pyrrolidone solvent is the polyarylene sulfide of an amount equivalent to the solvent and it is maintained at 265° C. for 8 hours.

Abstract: A catalyst which is able to express a high oligomerizing activity of ethylene and a method for the production of &agr;-olefin where ethylene is oligomerized using said catalyst are provided. The present invention relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-1) a transition metal complex of Groups 4 to 6 of the Periodic Table and also relates to a method for the production of &agr;-olefin by oligomerization of ethylene using said catalyst. The present invention further relates to a catalyst for the production of &agr;-olefin obtained by contacting (a) clay, clay mineral or ion-exchange layer compound with (b-2) a transition metal complex of Groups 8 to 10 of the Periodic Table and also relates to a method of the production of &agr;-olefin by oligomerization of ethylene using said catalyst.

Abstract: Provided are a catalyst for olefin polymer production, which contains an organosilicon compound having a specific structure and with which olefin polymers produced have increased stereospecificity and increased melt fluidity; and a method for producing such olefin polymers.

Abstract: The invention relates to a polycarbonate resin composition having good durability even in high-moisture atmospheres, and to a flame-retardant polycarbonate resin composition in which the flame retardants adheres little to molds while the resin composition is molded. The polycarbonate resin composition comprises (A) a polycarbonate resin and (B) an inorganic filler, and contains (C) an arylphosphine and optionally (D) a flame retardant.

Abstract: Provided are polypropylene-based films and sheets having good ultraviolet shieldability. While being stored, the films and the sheets are free from additive bleeding, and their outward appearance is kept all the time good. The films and the sheets are formed from a composition comprising 100 parts by weight of a polypropylene-based resin and from 0.01 to 5 parts by weight of one or more compounds selected from the following (A) to (D): (A) 2-(2-hydroxy-5-t-octylphenyl)benzotriazole, (B) 2-(2H-benzotriazol-2-yl)-6-dodecyl-4-methylphenol, (C) specific triazine compounds, and (D) specific methylene-bisphenols.

Abstract: Disclosed is a film or sheet of a polypropylene resin composition comprising the following components (A), (B) and (C): (A) 100 parts by weight of a polypropylene resin, (B) from 0.001 to 1 part by weight of a phenolic antioxidant such as 1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate or the like, and (C) from 0.05 to 5 parts by weight of a hindered amine-based light stabilizer. Provided are filmy or sheet moldings of the polypropylene resin composition which color little even when stored indoors at relatively high temperatures; and also the polypropylene resin composition for the moldings.

Abstract: A coating material contains at least one substance selected from the group consisting of water-soluble resin such as water-soluble acryl resin, resin emulsion such as acryl emulsion and solvent resin such as solution of urethane resin into a solvent (A); resin beads such as polyethylene beads (B); and at least one substance selected from the group consisting of soluble protein such as collagen and resin emulsion incompatible with the (A) such as ethylene-acryl copolymer (C). (A) improves adhesion with a base member, (B) improves heat sealability and (C) improves surface lubricity and anti-blocking properties. Further, water-soluble amine additive (D) may be added to improve adhesion with olefin base member.

Abstract: A process for producing an electrolessly plated molded article, which includes molding a resin composition made of a thermoplastic resin having a specific Izod impact strength and a Rockwell surface hardness and an inorganic filler, then treating the surface of the molded article with air blast using an abrasive having a sharp granular shape, and then conducting catalyst coating, activation treatment and electroless plating. It has been possible to apply the electroless plating with a high adhesion strength to the molded article of the thermoplastic resin composition without conducting the chemical etching treatment.

Abstract: Processes for the preparation of 3-alkoxyalkanols useful as solvents for coating materials, photoresists, or the like.

Abstract: Provided are an aromatic vinyl polymer resin composition capable of being molded into resin foam sheets having good surface smoothness and glossiness well balanced with the mechanical strength thereof even when the expansion ratio in molding is increased, and resin foam sheets and containers of the composition. The resin composition comprises (A) from 80 to 98% by mass of an aromatic vinyl polymer resin having a weight-average molecular weight measured through GPC of from 200,000 to 400,000, a ratio of weight-average molecular weight to number-average molecular weight ranging from 2.2 to 3.6, a number of branches of from 0.1 to 1.0 in one molecule having an absolute molecular weight of 1,190,000 measured through GPC-MALLS, and a melt flow rate of from 1.5 to 3.5 g/10 min, and (B) from 2 to 20% by mass of a styrene-diene block copolymer or its hydrogenate. This is molded into a resin foam sheet through extrusion foaming, and the sheet is thermoformed into containers.

Abstract: A method for injection-molding a plastics propeller fan by using a fixed-side mold section and movable-side mold section, comprises the steps of providing a movable core at an area corresponding to a thicker portion of a blade section of the propeller fan; after a predetermined amount of plastics material has been injected into a blade space of a mold cavity defined by the fixed-side mold section, movable-side metal section and movable core and conforming to the propeller fan, pushing out the movable core into the mold cavity and, after this step, bringing the movable core back to a normal position conforming to a mold shape defining the blade space and forming a proper fan.

Abstract: A process for separating a solid compound other than lithium hydroxide, such as sodium chloride, in which lithium hydroxide is hydrosulfurized by bubbling gaseous hydrogen sulfide through an aprotic solvent, such as a polar organic compound, containing lithium hydroxide and the solid compound other than lithium hydroxide, solid-liquid separation is conducted under a condition in which the reaction of lithium hydrosulfide to lithium sulfide and hydrogen sulfide is suppressed and at a temperature of the liquid for separation at 50 to 150° C., and the separated crystal cake is further washed with the aprotic solvent to highly recover lithium hydrosulfide.

Abstract: A resin composition contains a thermoplastic elastomer, natural organic, and silicone. As the thermoplastic elastomer, an olefin thermoplastic elastomer, such as a ethylene-propylene copolymer or the like, can be used. As the thermoplastic elastomer, a styrene thermoplastic elastomer, such as a styrene-butadiene copolymer or the like, can be used. As the natural organic, silk, cellulose, collagen or the like can be used. It is advisable that the content of the natural organic is 5-30 wt %, and the content of silicone is 0.3-10 wt %. Where the natural organic is a fine powder state, it is preferable that the particle size is less than 300 &mgr;m. Moldings are sheets or the like, formed by using the aforementioned resin composition.

Abstract: Disclosed are a flame-retardant polycarbonate resin composition comprising, as the essential ingredients, (A) a polycarbonate resin, (B) a specific styrenic resin, and (C) a specific phosphate compound, and its moldings. Containing no halogen, the resin composition and its moldings have good flame retardancy, impact strength, heat-resistant stability, thermal aging resistance, and wet heat resistance.

Abstract: The invention relates to a polycarbonate resin composition having good durability even in high-moisture atmospheres, and to a flame-retardant polycarbonate resin composition in which the flame retardants adheres little to molds while the resin composition is molded. The polycarbonate resin composition comprises (A) a polycarbonate resin and (B) an inorganic filler, and contains (C) an arylphosphine and optionally (D) a flame retardant.

Abstract: Provided are a solid catalyst component for olefin polymerization and a catalyst comprising the component for olefin polymerization, in which the electron donor is free from the problem of lacking in safety and sanitation, and is inexpensive and easy to produce, and which exhibit high activity in producing olefin polymers with high stereospecificity, and also a method for producing olefin polymers in the presence of the catalyst. The solid catalyst component comprises titanium, magnesium and an electron donor compound of formula (I): wherein R1 and R2 each represent a linear or branched hydrocarbon residue having from 1 to 20 carbon atoms; R3 represents an alicyclic hydrocarbon residue having from 3 to 20 carbon atoms; and n represents an integer of from 1 to 10. The solid catalyst component is combined with an organic aluminium compound to prepare a catalyst, which is used in producing olefin polymers.

Abstract: A process for producing an electrolessly plated molded article, which includes molding a resin composition made of a thermoplastic resin having a specific Izod impact strength and a Rockwell surface hardness and an inorganic filler, then treating the surface of the molded article with air blast using an abrasive having a sharp granular shape, and then conducting catalyst coating, activation treatment and electroless plating. It has been possible to apply the electroless plating with a high adhesion strength to the molded article of the thermoplastic resin composition without conducting the chemical etching treatment.