Uji, Japan
Uji, Japan

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Disclosed is a semi-aromatic polyamide resin composition including 100 parts by mass of a semi-aromatic polyamide (A), 20 to 110 parts by mass of a fibrous reinforcing material (B) and 0.1 to 5 parts by mass of an azine dye (C), wherein the semi-aromatic polyamide (A) includes as the constituent components thereof an aromatic dicarboxylic acid component, an aliphatic diamine component and a monocarboxylic acid component, and has a melting point of 300C or higher; and the monocarboxylic acid component constituting the semi-aromatic polyamide (A) is an aliphatic monocarboxylic acid having a molecular weight of 200 or more.


Patent
Unitika Ltd. | Date: 2017-02-08

[Problem] To provide an air filter material in which spun bond nonwoven fabric and melt blown nonwoven fabric are laminated and integrated without reducing air permeability. [Solution] Spun bond nonwoven fabric comprises, as constituting filament, conjugate polyester continuous filaments having a cross-sectional shape of a nearly Y4-like shape. The continuous filament is composed of a nearly V-shape portion 6 in the nearly Y4-like shape, formed from low melting point polyester, and the other nearly + shape portion 5 therein, formed from high melting point polyester. The continuous filaments are heat-bonded with each other by the low melting point polyester. The spun bond nonwoven fabric is bonded by a powder type or spider web type hot melt adhesive agent with the melt blown nonwoven fabric.


Disclosed is a semiaromatic polyamide resin composition including a semiaromatic polyamide (A) and a polyhydric alcohol (B), wherein a mass ratio (A/B) between the semiaromatic polyamide (A) and the polyhydric alcohol (B) is 99.95/0.05 to 90/10; and the semiaromatic polyamide (A) includes as constituent components thereof an aromatic dicarboxylic acid component and an aliphatic diamine component, and has a melting point of 300 to 350C.


Patent
Konica Minolta, Unitika Ltd. and Unitika Glass Fiber Co. | Date: 2015-02-25

A light diffusion sheet for an organic electroluminescent element to be used in an organic electroluminescent panel. The light diffusion sheet includes: a glass fiber cloth composed of at least one glass fiber; silica on a surface of the glass fiber or between the glass fibers; and at least one selected from a group consisting of metal alkoxides and reaction products of metal alkoxides.


Disclosed is a semiaromatic polyamide resin composition including a semiaromatic polyamide (A), a phosphorus-based flame retardant (B) and an inorganic aluminum compound (C), wherein the mass ratio (A/B) between (A) and (B) is 50/50 to 95/5; the amount of the inorganic aluminum compound (C) is 0.1 to 20 parts by mass in relation to 100 parts by mass of the total amount of (A) and (B); (A) is constituted with an aromatic dicarboxylic acid component, an aliphatic diamine component and a monocarboxylic acid component; and the content of the monocarboxylic acid component is 0.3 to 4.0 mol% in relation to the whole monomer components constituting (A).


Disclosed is a semiaromatic polyamide resin composition including a semiaromatic polyamide (A) and a polyhydric alcohol (B), wherein a mass ratio (A/B) between the semiaromatic polyamide (A) and the polyhydric alcohol (B) is 99.95/0.05 to 90/10; and the semiaromatic polyamide (A) includes as constituent components thereof an aromatic dicarboxylic acid component and an aliphatic diamine component, and has a melting point of 300 to 350 C.


Patent
Unitika Ltd. | Date: 2015-06-03

A polyester film for cold forming including polybutylene terephthalate (PBT) and polyethylene terephthalate (PET), wherein a mass ratio (PBT/PET) between PBT and PET is 30/70 to 80/20.


The packaging material for cold forming of the present invention includes a polyamide resin film biaxially stretched by a tenter method and an aluminum foil provided on one surface of the polyamide resin film and integrated with the polyamide resin film. The distortion of the polyamide resin film caused by applying thereto a tension corresponding to the tensile break tension of the aluminum foil is 20% or more and 45% or less. Herewith, it is possible to provide a packaging material for cold forming excellent in cold formability, capable of suppressing the breakage of the aluminum foil during the cold forming in the case where the polyamide resin film biaxially stretched by the tenter method is used.


Patent
Unitika Ltd. | Date: 2016-02-24

The primary cloth is stabilized after a tufting step. The pr imary cloth is a nonwoven fabric of continuous filaments which are mor e than 10 dtex in fineness. The continuous filament is consisting of polyester which has a nearly V part made of a low melting point pol yester and a nearly + part made of a high melting point polyester. The continuous filaments are one other bonded by melting or softening of the low melting point polyester to form the nonwoven fabric.


Patent
Unitika Ltd. | Date: 2016-06-22

An object of the present invention is to provide a polyarylate resin having an adequate ultraviolet-absorbing property and an adequate dissolving property in an organic solvent, which is excellent in a solution stability even when it is dissolved in a polar organic solvent having a high hygroscopic property and in a reactivity with the other material and adhesive properties to various materials. The present invention provides a polyarylate resin comprising a bisphenol component including a compound shown by a general formula (1) and an aromatic dicarboxylic acid component as monomeric components, wherein the polyarylate resin is satisfied with the formula mentioned below: (wherein A represents an inherent viscosity measured in a concentration of 1g/dL and a temperature of 25C using tetrachloroethane as a solvent and B represents an inherent viscosity measured in a concentration of 1g/dL and a temperature of 25 C using a mixture liquid of phenol/tetrachloroethane/sodium acetate having a mass ratio of 6/4/0.006 as a solvent):

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