| Polyplastics Co., Ltd. Patent applications |
| Patent application number | Title | Published |
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| 20110212660 | CYCLIC OLEFIN-DERIVED RESIN FIBER AND CYCLIC OLEFIN-DERIVED RESIN NON-WOVEN FABRIC - Provided is a cyclic olefin-derived resin microfiber and a cyclic olefin-derived resin non-woven fabric. A polymer solution containing a volatile solvent and a cyclic olefin-derived resin is subjected to electrostatic spinning. The volatile solvent to be used preferably contains at least one solvent selected from the group consisting of chloroform, toluene, xylene, cyclohexane and decalin. In addition, by using a cyclic olefin-derived resin with a glass transition point of at least 160° C., high heat-resistance can be imparted to a cyclic olefin-derived resin fiber. | 09-01-2011 |
| 20110037193 | METHOD FOR PRODUCING POLYARYLENE SULFIDE RESIN COMPOSITION - A method is provided for obtaining a polyarylene sulfide resin composition with a low chlorine content, which has high fluidity and high quality and produces less burrs. Specifically, a method is provided wherein a polyarylene sulfide resin composition is produced by melting and mixing (A) a polyarylene sulfide resin, (B) an inorganic filler, and (C) an alkoxysilane compound. In this method, (A) a polyarylene sulfide resin having a melt viscosity of 80-400 Pa·s (at a temperature of 310° C. and a shear rate of 1200/sec) and a chlorine content of 1000-2000 ppm is supplied from a raw material feed port of a specific extruder, and then extruded at two kneading parts within the range of [shear rate (1/sec)×kneading time (sec)=1600-6000], thereby producing a polyarylene sulfide resin composition having a melt viscosity of 150-330 Pa·s (at a temperature of 310° C. and a shear rate of 1200/sec) and a chlorine content of not more than 950 ppm. | 02-17-2011 |
| 20100326698 | RESINOUS MATERIAL FOR COVERING ELECTRIC WIRE, ELECTRIC WIRE MANUFACTURED BY USING THE RESINOUS MATERIAL FOR COVERING ELECTRIC WIRE, AND FLAME-RETARDANT CABLE - The present disclosure provides a resinous material for covering electric wire having all required properties meeting or exceeding a certain standard, produced using a cyclic olefin-derived resin, and electric wires manufactured using the resinous material for covering electric wire, and flame-retardant cables. The resinous material including (A) an olefin-derived resin, (B) an elastomer resin, (C) a cyclic olefin-derived resin having a glass transition point of from 120° C. to 170° C., and (D) a flame retardant, the resinous material having: a content of the component (D) of from 60 parts by mass to 150 parts by mass relative to 100 parts by mass of the total contents of the components (A), (B) and (C); a tensile elongation of no less than 250%; and a heat deformation of no greater than 40%. | 12-30-2010 |
| 20100307627 | MULTI-LAYER CYLINDRICAL MOLDED ARTICLE - The present disclosure provides a highly heat-resistant multilayer molded article having excellent adhesion between layers and which can be inexpensively produced and easily recycled. The multilayer molded article includes an innermost layer having a first polyarylene sulfide-derived resin composition including 95% to 80% by mass of a polyarylene sulfide-derived resin and 5% to 20% by mass of an olefinic (olefine-derived) elastomer, and an outer layer disposed on an outer-side of the innermost layer, including a second polyarylene sulfide-derived resin composition having 5 to 35 parts by mass of reinforced fibers relative to 100 parts by mass of the first polyarylene sulfide resin composition. | 12-09-2010 |
| 20100237284 | LIQUID CRYSTALLINE POLYESTER RESIN COMPOSITION - The present invention provides a liquid crystalline polyester resin composition which imparts a good mold-releasability during molding and further is improved in heat resistance. Specifically, with 100 parts by weight of a liquid crystalline polyester resin is added 0.001 to 1 part by weight of a fatty acid ester which is a tetraester of pentaerythritol and a C10 to C32 higher fatty acid and has an acid value ranging from 0.01 to 0.5 and a hydroxyl value ranging from 0.01 to 5. | 09-23-2010 |
| 20100225032 | CYCLOOLEFIN RESIN COMPOSITION - A cycloolefin resin composition which controls the flexibility of a cycloolefin resin and may be molded in an environment having a temperature exceeding about 140° C. is provided. A cycloolefin resin film, a cycloolefin resin preform and the like are provided utilizing the cycloolefin resin composition including two or more cycloolefin copolymer resins having Tg values different from each other by about 10° C. or more, and the storage modulus of about 120° C. (E′ | 09-09-2010 |
| 20100087575 | POLYACETAL RESIN COMPOSITION - The present invention provides a polyacetal resin material having reduced generation of gases such as formaldehyde to the utmost limit while maintaining or further improving the excellent properties such as mechanical properties, processability and surface properties, of which the polyacetal resin is inherently possessed. In detail, the present invention provides a polyacetal resin composition, obtained by blending, to 100 parts by weight of (A1) a polyacetal resin having substantially linear molecular structure, 0.01 to 20.0 parts by weight of (A2) a polyacetal resin having a branched or crosslinked structure, 0.01 to 5.0 parts by weight of (B) a hindered phenol-based antioxidant and 0.01 to 5.0 parts by weight of (C) a hydrazide compound. | 04-08-2010 |
| 20090197471 | ASYMMETRIC ELECTRONIC PARTS - Provided is a material capable of forming a molded product which has good mechanical properties with low warpage while being excellent in any of the performance including heat resistance and flowability, even if the molded product is an asymmetric electronic parts. Specifically, the asymmetric electronic parts is prepared by molding a liquid crystalline polymer composition comprising (A) a fibrous filler having an average fiber diameter within the range of 5 to 30 μm, having a weight average fiber length within the range of 250 to 350 μm, excluding 10 μm or shorter fiber length, and having a content of a fibrous filler being 700 μm or longer within the range of 5% by weight or less; and (B) a plate-like filler having an average particle size within the range of 0.5 to 200 μm, the total filling amount of (A) and (B) components in the composition being within the range of 40 to 60% by weight, the weight ratio of (A) component being within the range of 10 to 20% by weight, the weight ratio of (B) component being within the range of 30 to 40% by weight, the molded product having no symmetry in any of the axial plane XY, the axial plane YZ, and the axial plane XZ of the molded product. | 08-06-2009 |
| 20090163632 | CYCLOOLEFIN COPOLYMER - A novel cycloolefin copolymer that can be employed in the production of molding with fewer defects, for example, fewer gel particles (fish eyes). There is provided a cycloolefin copolymer comprising 80 to 20 mol % of repeating units derived from an α-olefin monomer and 20 to 80 mol % of repeating units derived from at least one cycloolefin monomer selected from the group consisting of monomer of the general formula (I), monomer of the general formula (II), monomer of the general formula (III), monomer of the general formula (IV) and monomer of the general formula (V), wherein with respect to the repeating units derived from cycloolefin monomer, the proportion thereof being present in the form of dimer (Rd) is 50 mol % or below and the proportion thereof being present in the form of trimer (Rt) 5 mol % or above. | 06-25-2009 |
| 20090137724 | Thermoplastic Resin Composition - The invention provides a thermoplastic resin composition which has high rigidity and high flowability, gives less peeling of molding surface, and provides excellent appearance, and which can be suitably used for mechanical parts of automobile and mechanical parts of electrical and electronic products. Provided is the thermoplastic resin composition comprising: 100 parts by weight of (A) a sole polybenzimidazole resin or a mixed thermoplastic resin composed of 70 to 20% by weight of a polybenzimidazole resin and 30 to 80% by weight of a polyether ketone resin; and 5 to 100 parts by weight of (B) a liquid crystalline polyester amide resin containing one or more types of structuring monomer of 4-aminophenol, 1, 4-phenylenediamine, 4-aminobenzoic acid, and a derivative thereof, and containing 3 to 35% by mole of an amide component in the total bonds. | 05-28-2009 |
| 20090018236 | ANTIHAZING AGENT FOR NONCRYSTALLINE CYCLOOLEFIN RESINS, RESIN COMPOSITIONS, AND OPTICAL ELEMENTS - An antihazing agent for noncrystalline cycloolefin resins which can inhibit the hazing of the resins due to fine cracking caused by environmental change, particularly, environmental change from high temperature and humidity atmosphere to ordinary temperature and humidity atmosphere without losing the characteristics inherent in the resins to keep the transparency of the resins and inhibit the light transmittance thereof from lowering; noncrystalline cycloolefin resin compositions containing the agent; and optical elements made from the compositions. A compound component containing a metal rosinate as the main component is used as the antihazing agent for noncrystalline cycloolefin resins. It is particularly preferable that the antihazing agent further contain one or more members selected from the group consisting of alkali metal salts, alkaline earth metal salts, and Group 12 metal salts. | 01-15-2009 |
| 20080286510 | Resin Composition for Extrusion Molding and Extrusion-Molded Article - A purpose of the present invention is to obtain a hollow extruded article by easy blow molding or extrusion molding to give a draw down resistance and a uniform wall thickness of the article without damaging low gas permeability which is a characteristic property of a liquid-crystalline polymer. A resin composition for extrusion molding which is prepared by melting and kneading 99-70 wt. % of wholly aromatic polyester amide liquid crystal resin (A) having a melting point of 270-370° C. and a melt viscosity at 1000/sec. shear rate of 20-60 Pa·s at Temperature T1 which is higher than 20° C. from said melting point, and containing (I) 1-15 mole % of 6-hydroxy-2-naphthoic acid residue, (II) 40-70 mole % of 4-hydroxybenzoic acid residue, (III) 5-28.5 mole % of aromatic diol residue, (IV) 1-20 mole % of 4-aminophenol residue, and (V) 6-29.5 mole % of aromatic dicarboxylic acid residue; and 1-30 wt. % of epoxy modified polyolefin type resin (B), and has a melt viscosity at 1000/sec. shear rate of 60-4000 Pa·s at said Temperature T1, and a melt tensile strength of 20 mN or more at 14.8 m/min. draw rate is used. | 11-20-2008 |
| 20080271381 | Method for manufacturing stabilized polyacetal resin, stabilized polyacetal resin, stabilized polyacetal resin composition, and molded article of stabilized polyacetal resin - The present invention provides an agent to decompose instable terminal group, which is effective in a small adding amount, which sufficiently decreases the quantity of residual instable terminal group, and which generates very little limitation on the treatment method, the apparatus, and the use amount of the agent. Specifically, it provides a method for manufacturing stabilized polyacetal resin having the step of applying heat treatment to a polyacetal resin having an instable terminal group in the presence of an agent to decompose the instable terminal group, which agent is composed of a heterocyclic quaternary ammonium salt, thus decreasing the quantity of the instable terminal group. | 11-06-2008 |
