Toyobo Co., Ltd.

Toyobo Mc Corporation

Nobuhiro Yoshimura

Ryo Umeki

Kazuki Iwamura

Yoshitaka Tanaka

Shigeyuki Watanabe

Takafumi Masuda

Daiki Funaoka

Shuji Kubota

Yuhei Fukumoto

Kiyofumi Sakai

Osamu Mabuchi

Motonori Takita

The invention provides a thermal adhesive laminated oriented film containing a substrate layer comprising a resin composition containing 99.9 to 60% by mass of a polyamide resin or a polymethylpentene resin and 0.1 to 40% by mass of a modified polyolefin resin; and a thermal adhesive layer containing a thermal adhesive polyolefin resin and provided on each of both surfaces of the substrate layer so as to be in direct contact therewith by coextrusion. When a machine direction is defined as an X axis, a transverse direction is defined as a Y axis, and a thickness direction is defined as a Z axis, the film is stretched and oriented in at least one direction of the X axis or the Y axis, and has a thermal deformation rate at 150° C. of 4% or less in both directions of the X axis and the Y axis.

Thermal adhesive laminated oriented film

A method for producing a polyamide resin composition containing a crystalline polyamide resin (A) containing a polycaproamide resin as a main component, a semi-aromatic amorphous polyamide resin (B), an inorganic reinforcing material (C), a master batch of carbon black (D), and a copper compound (E); a dispersion liquid of the copper compound (E) has a concentration of 0.04% by mass to 1.0% by mass; and the crystalline polyamide resin (A) containing a polycaproamide resin as a main component, the semi-aromatic amorphous polyamide resin (B), the master batch of carbon black (D), and the dispersion liquid of the copper compound (E) are mixed in advance, followed by charging the mixture is into a hopper part of an extruder, and charging the inorganic reinforcing material (C) into the extruder by a side feed method.

Method for producing polyamide resin composition

The present invention aims to provide a glass-fiber-reinforced polyamide resin composition, characterized in that, the composition contains a crystalline aliphatic polyamide resin (A), an amorphous polyamide resin (B), an acrylic resin (C), mica (D), glass fiber (E) and a master batch of carbon black (F) in a ratio by mass of (17 to 30):(10 to 16):(3 to 8):(10 to 25):(20 to 50):(1 to 8), respectively, in that, a mass ratio of (A) and (B) ((B)/(A)) satisfies 0.50 to 0.61, and in that, the composition further contains a copper compound (G) in a rate of 0.005 to 1.0 part by mass when a total amount of the ingredients (A) to (F) is taken as 100 parts by mass. From the glass-fiber-reinforced polyamide resin composition, it is possible to obtain a molded product that is highly excellent in a surface appearance (textured surface uniformity) and has a weather resistance in a level being enough for maintaining an excellent surface appearance even after the weathering test.

Glass-fiber-reinforced polyamide resin composition and molded product for vehicle interior or vehicle exterior made therefrom

The present invention provides a polyamide resin composition containing (A) a crystalline polyamide resin containing a polycapramide resin as a main component, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the polyamide resin composition contains, as the (C), (C-1) a glass fiber, (C-2) a wollastonite having a needle shape, and (C-3) an inorganic reinforcing material of a plate-like crystal; a mass ratio of the (B) to (A) satisfies 0.35≤(B)/(A)≤0.80; when a total content of the (A), (B), and (C) is 100 parts by mass, a content (parts) of each component satisfies 30≤(A)+(B)≤55; 10≤(B)≤23; 20≤(C-1)≤40; 8≤(C-2)≤25; 8≤(C-3)≤25; 45≤(C-1)+(C-2)+(C-3)≤70; and an amount of a carboxyl group in the polyamide resin composition is less than 120 meq/kg. The resin composition provides a molded article having excellent strength and rigidity, excellent surface appearance of the molded article, and further excellent weather resistance, even in continuous molding of the composition over a long period of time at a high cylinder temperature.

Polyamide resin composition and method for producing same

Disclosed is a conductive polyamide resin composition that excels not only in electroconductivity, but also in fuel resistance, particularly resistance against alcohol-containing fuel, and further excels in fluidity and moldability, and is capable of yielding a molded article with high impact resistance, the conductive polyamide resin composition including: 84 to 40% by mass of a polyamide resin (A); 5 to 30% by mass of conductive carbon black (B); 3 to 30% by mass of an ethylene-&#x3b1;-olefin copolymer (C) that has a reactive functional group capable of reacting with a terminal group of polyamide resin and/or an amido group on a principal chain of polyamide resin; and 1 to 20% by mass of a conductive polyethylene resin (D).

Conductive polyamide resin composition

The polyamide resin composition according to the present invention contains a polyamide resin (A) wherein an average carbon number of an alkylene group between amide groups is 5 or less and a polyamide resin (B) wherein an average carbon number of an alkylene group between amide groups is more than 5, wherein a ratio by mass (A)/(B) of the polyamide resin (A) to the polyamide resin (B) is from 98/2 to 40/60, and wherein, to 100 parts by mass of a total amount of the polyamide resin (A) and the polyamide resin (B), 0.5 to 20 part(s) by mass of a metal cyanide salt of a composition formula (1) (A[M(CN)]) is compounded.

Polyamide resin composition

The present invention is a polyamide resin composition having a thermal aging resistance in a level which is resistant to a high-temperature and long-term environment of 200&#xb0; C. and longer than 1000 hours. According to the present invention, there is provided a polyamide resin composition containing a polyamide resin (A) and another polyamide resin (B) which exhibits lower oxygen permeability than the polyamide resin (A), wherein a ratio by mass (A)/(B) of the polyamide resin (A) to the polyamide resin (B) is from 98/2 to 60/40, and wherein, to 100 parts by mass of the total amount of the polyamide resin (A) and the polyamide resin (B), 0.5 to 20 part (s) by mass of a metal cyanide salt of a composition formula (1) is compounded.

Polyamide resin composition having thermal aging resistance and method for enhancing thermal aging resistance of polyamide resin

The present invention is a polyamide resin composition having excellent thermal aging resistance and excellent mechanical characteristics, and containing 0.5 to 20 part(s) by mass of a metal cyanide salt having the general composition formula (A[M(CN)]) to 100 parts by mass of a polyamide resin. In the general composition formula, M is at least one member of transition metal elements in groups 5 to 10 and periods 4 to 6 of a periodic table; A is at least one member of alkali metal and alkaline earth metal; y is an integer of from 3 to 6; and x is a number calculated by (y&#x2212;m)/a, wherein m is a valence of M and a is a valence of A.

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Shiga, Japan

Nobuhiro Yoshimura