The present invention relates to such a polyamide resin composition that is suitably used as a material of a gasoline tank and a material of a molded article, such as a hollow molded container including a beverage bottle, a film and a sheet. A polyamide resin that is good in heat stability upon molding and suffers less increase in filter back pressure is provided by regulating a polyamide resin composition to have a phosphorus content of from 30 to 200 ppm (excluding 200 ppm), and a sodium content/phosphorus content ratio (molar ratio) of from 3 to 7 (excluding 3 and 7) or regulating it to have a phosphorus content less than 30 ppm and an alkali metal content less than 45 ppm.

Polyamide resin composition

The present specification discloses an incoming/outgoing-talk unit having an ear-hook unit, a cartilage conduction vibration unit that makes contact with ear cartilage in a state where the hook unit is hooked to the ear, an outgoing-talk unit, and a unit for performing short-range wireless communication with the mobile telephone. Further disclosed is an incoming-talk unit having an ear-hook unit, and a cartilage conduction vibration unit for transmitting cartilage conduction from outside of ear cartilage in a state where the hook unit is hooked to the ear. Also disclosed is an incoming-talk unit having a three-dimensional viewing adjustment unit, a temple having a unit for adjusting contact of eyesight-adjusting eyeglasses with the temple when the unit is superposedly mounted on the eyesight-adjusting eyeglasses; and an audio information output unit provided to the temple.

Incoming/outgoing-talk unit and incoming-talk unit

The present invention provides a reflector for an LED, including a polyamide composition and configure to keep high reflectance and high degree of whiteness even after being irradiated with LED light for a long period of time. The present invention is a reflector for an LED, including a polyamide composition containing polyamide (A) that has dicarboxylic acid units including 50 to 100 mol% of 1,4-cyclohexanedicarboxylic acid units and diamine units including 50 to 100 mol% of aliphatic diamine units having 4 to 18 carbon atoms.

Reflector for LED and light-emitting device equipped with same

The invention relates to a composition for a thermoplastic composite material having a thermoplastic matrix made of a semi-crystalline polyamide having a specific composition that includes at least two amide units, A, 55-95 mol %, and B, 5-45 mol %. A corresponds to x.T, wherein x is a C9-C18 linear aliphatic diamine and B corresponds to x'.T, wherein x' can be B1): a specific branched x-dependent aliphatic diamine, B2): MXD or B3): a linear x-dependent aliphatic diamine, said polyamide having a glass transition temperature Tg of at least 90 °C and a melting point no higher than 280 °C. The invention also relates to a method for manufacturing said composite material, the semi-crystalline polyamide polymer, the use of the composition and of the polymer of the invention for parts made of composite material, as well as the material and the resulting composite part.

Thermoplastic composite material made of a semi-crystalline polyamide and method for manufacturing same

The present invention provides a polyamide resin composition which has an adequate melt viscosity although an electrically conductive filler is contained therein and which has excellent moldability and is excellent in terms of electrical conductivity, low-temperature impact resistance, and fuel-barrier properties. This polyamide resin composition comprises a polyamide that comprises dicarboxylic acid units, 50 mol% or more of which are accounted for by terephthalic acid units and/or naphthalenedicarboxylic acid units, and diamine units, 60 mol% or more of which are accounted for by units of a C4-18 aliphatic diamine, and that has a terminal-amino-group content of 5-60 µmol/g, a resin modified with an unsaturated compound having a carboxy group and/or an acid anhydride group, and an electrically conductive filler in specific amounts. In the composition, the difference between the number of moles (MI) of the terminal amino groups of the polyamide and the number of moles (MII) of the carboxy groups and acid anhydride groups of the modified resin, per g of the sum of the polyamide and the modified resin, is -5.0 µmol or greater but less than 4.0 µmol and MII is greater than 4.0 µmol.

Resin composition and molded article including same

PROBLEM TO BE SOLVED: To provide a polyamide resin composition which excels in both properties of impact resistance and toughness including elongation and of mechanical properties such as tensile strength and welding strength, and furthermore excels in properties such as heat resistance, low water absorption, chemical resistance, and long-term heat resistance, and a molded article composed thereof. SOLUTION: The polyamide resin composition is produced by kneading a polyamide (I) composed of a dicarboxylic acid unit containing 50-100 mol% terephthalic acid unit and a diamine unit containing 60-100 mol% a 6-18C aliphatic diamine unit and having a terminal amino group content ([NH 2 ]) of 10 μ-eq/g and less than 60 μ-eq/g, a modified resin (II) modified with an unsaturated compound having a carboxyl group and/or an acid anhydride group, and at least one filler (III) selected from a fibrous filler and a needle filler at a specific ratio, and the molded article comprises the composition. COPYRIGHT: (C)2008,JPO&INPIT

Polyamide resin composition and molded article comprising the same

PROBLEM TO BE SOLVED: To provide a resin composition excellent in water absorbing property, heat resistance, chemical resistance, fatigue resistance and the like, particularly capable of maintaining high mechanical strength even in case of exposing for a long time under the condition of a high temperature, and a molded article comprising the resin composition. SOLUTION: The continuous fiber reinforced semi-aromatic polyamide resin composition includes 100 parts by mass of a semi-aromatic polyamide resin (A) comprising a dicarboxylic acid unit (a) having 50-100 mol% of a terephtalic acid unit and a diamin unit (b) having 50-100 mol% of a 1,9-nonanediamine unit and/or a 2-methyl-1,8-octanediamine unit, and 5-300 parts by mass of a fibrous reinforcing material (B) having a fiber length of 3 mm or longer. COPYRIGHT: (C)2007,JPO&INPIT

Continuous fiber reinforced semi-aromatic polyamide resin composition

PROBLEM TO BE SOLVED: To provide a polyamide resin composition having an extremely excellent low outgassing property and excellent in mechanical properties such as tensile elongation and low water absorption, heat resistance, slidability and chemical resistance. SOLUTION: A polyamide resin composition comprises a dicarboxylic acid unit (a) containing 50 to 100 mol% of terephthalic acid units, 1,9-nonanediamine units and / or 2-methyl-1,8-octanediamine units. 100 parts by weight of a polyamide resin (I) composed of 60 to 100 mol% of a diamine unit (b) and using benzoic acid as a terminal blocking agent, and 0.01 to 0.01 of a metal oxide and / or a metal hydroxide And 10 parts by weight. [Selection] None

Polyamide resin composition and molded article of the same

PROBLEM TO BE SOLVED: To obtain a polyamide resin composition that has extremely excellent impact resistance and durability, low water absorption properties and excellent properties such as heat resistance, sliding properties, chemical resistance, etc. SOLUTION: The polyamide resin composition comprises a polyamide (I) having a dicarboxylic acid unit (a) containing 50-100 mol% of a terephthalic acid unit and a diamine unit (b) containing 50-100 mol% of a 1,9-nonanediamine unit and/or a 2-methyl-1,8-octanediamine unit and an olefin-based polymer (II) having at least one kind of a functional group selected from the group consisting of a carboxy group, an acid anhydride group and an epoxy group and ≤50 MPa tensile modulus at 23°C in the weight ratio of the polyamide (I) to the olefin-based polymer (II) by weight of 99.5:0.5-50:50. COPYRIGHT: (C)2006,JPO&NCIPI

Polyamide resin composition and molding comprising the same

PROBLEM TO BE SOLVED: To provide a method for producing a polyamide composition which provides a molded article having excellent surface beautifulness, and being superior in toughness represented by impact resistance, tensile breaking elongation or the like and in mechanical properties represented by tensile strength or the like. SOLUTION: The method for producing a polyamide composition includes a process for melting and kneading a polyamide (I), a modified resin (II) modified by an unsaturated compound having a carboxy group and/or an acid anhydride group, and nigrosine and/or its derivative (III). In the method, before melting and kneading the nigrosine and/or its derivative (III), at least a portion of the polyamide (I) and at least a portion of the modified resin (II) are melted and kneaded to obtain a mixture, and then, the obtained mixture and the nigrosine and/or its derivative (III) are further mixed and kneaded. COPYRIGHT: (C)2010,JPO&INPIT

裕二宗澤

Papers

Polyamide resin composition and molded article comprising the same

Continuous fiber reinforced semi-aromatic polyamide resin composition

Polyamide resin composition and molded article of the same

Polyamide resin composition and molding comprising the same

Method for producing polyamide composition, polyamide composition, and molded article composed of polyamide composition

裕二 宗澤

Papers

Polyamide resin composition and molded article comprising the same

Continuous fiber reinforced semi-aromatic polyamide resin composition

Polyamide resin composition and molded article of the same

Polyamide resin composition and molding comprising the same

Method for producing polyamide composition, polyamide composition, and molded article composed of polyamide composition

裕二宗澤