Toray Industries, Inc.

Jun Sakamoto

Hiroji Kojima

Mayumi Matsumoto

Masahiro Kimura

Masatoshi Aoyama

Shigeru Aoyama

Yuzo Shimizu

Hitoshi Yoshimura

Yoshihiro Honma

Masaru Suzuki

Akimitsu Tsukuda

Kenji Tsunashima

Koichi Abe

Yoshihiro Masuda

Minoru Yoshida

Wataru Gouda

Takayuki Uto

Yukari Nakamori

Iwao Okazaki

Masaaki Umehara

Masanori Sueoka

Tetsuya Machida

Shigetoshi Maekawa

Hideki Moriyama

Takahiro Motoshiromizu

Keisuke Honda

Koichi Dan

Gouhei Yamamura

Tomonori Kawakami

Kunihiro Morimoto

Risa Taniguchi

Shohei Yoshida

Kouichi Dan

Risa Hamasaki

Hua Qi

Mayumi Sunako

Masayuki Hirota

Shoji Aono

Ken Suzuki

Zemeng Sun

Yoshihiro Toray Mishima-Ryo E-416 Honma

A multilayer film having a multi-layer structure unit which is a 51-layered or more multiple layer formed by alternately layering a layer (A layer) a main component of which is a polyester resin (resin A) having a dicarboxylic component and a diol component, and a layer (B layer) a main component of which is a thermoplastic resin (resin B) different from the resin A in optical properties; wherein at least one surface of the multi-layer structure unit has a refractive index of 1.68 or more and 1.80 or less, wherein the surface has a critical load of 15 mN or less at 100&#xb0; C. in a scratch test, and wherein the multilayer film has at least one reflection bandwidth having a reflectance of 30% or more continuous over a wavelength width of 20 nm or more in a profile of reflectance measured on at least one surface side of the multi-layer structure unit.

Laminate film

A polyester resin composition is excellent in heat resistance and hydrolysis resistance and results in a small amount of a gel composition and linear oligomers generated during a melt-molding step and a processing step. The polyester resin composition satisfies formulas (I) to (IV):the amount of generated linear oligomers&#x3c;900 ppm&#x2003;&#x2003;(I)&#x394;COOH/COOH&#x2264;2.0&#x2003;&#x2003;(II)5 ppm&#x2264;Mn content&#x2264;40 ppm&#x2003;&#x2003;(III)4 ppm&#x2264;Na content&#x2264;40 ppm&#x2003;&#x2003;(IV).

Polyester resin composition and method of producing same

A polyester resin composition including an ionic liquid that can dissolve an acid component monomer and/or oligomers of a polyester terephthalate, and a copper element that exhibits a reduced amount of production of the acid component monomer and/or oligomers of the polyester. Examples of the ionic liquid include 1-butyl-3-methylimidazolium acetate, 1-butyl-3-methylimidazolium chloride and tetrabutyl ammonium bromide. In one polyester resin composition, the surface roughness Ra of a capture plate is less than 0.150 &#x3bc;m, as measured when a sample of the polyester resin composition is melt at 300&#xb0; C. for 60 minutes under a nitrogen atmosphere, quickly cooled and thermally treated at 220&#xb0; C. for 8 hours to form scattered products which are then attached to the capture plate and a gelation ratio after a 6-hour melting treatment at 300&#xb0; C. under an atmosphere with an oxygen concentration of 1% is 5% or less.

Polyester resin composition and production method thereof

A light source unit includes: a light source; a color conversion film containing an organic luminous material that converts incident light made incident from the light source into light with a longer wavelength than that of the incident light; and a laminated film comprising a constitution in which 11 or more layers of different thermoplastic resins are alternately laminated with each other.

Light source unit, laminated member, and display and lighting apparatus including them

A process of producing a polyester composition includes carrying out an esterification reaction of a dicarboxylic acid component with a diol component, and then carrying out a polycondensation reaction, wherein the diol component is added twice or more during a time from completion of the esterification reaction until beginning the polycondensation reaction, and alkali metal phosphate is added with an amount of COOH terminal groups of an esterification reactant being not more than 150 eq/ton.

Method for producing polyester compositions

The present invention is a composition containing a polyester resin containing at least an alicyclic dicarboxylic acid component and an alicyclic diol component, and it is a polyester resin composition which satisfies that a glass transition temperature is 65&#xb0; C. or more and 90&#xb0; C. or less, a refractive index at sodium D line is 1.500 or more and 1.570 or less, a titanium element content is 5 ppm or more and 500 ppm or less, a phosphorus element content is 50 ppm or more and 500 ppm or less and a gel fraction is 50% or less. By the present invention, it is possible to obtain a polyester resin composition having a low refractive index and photoelastic coefficient, and in which a thermally degraded foreign substance is reduced.

Polyester resin composition, production method thereof and laminate polyester film

A polyethylene terephthalate composition includes a copolymer component having at least 3 functional groups in an amount of 0.01 mol % to 1.00 mol % with respect to ethylene terephthalate units, in which a ratio (Mw/Mn) between the weight average molecular weight and number average molecular weight of the polyethylene terephthalate composition is 5.0 to 8.0; an alkali metal compound in an amount of 1.0 mol/ton to 3.0 mol/ton in terms of alkali metal element; a phosphorus compound in an amount of 1.5 mol/ton to 5.0 mol/ton in terms of elemental phosphorus; and an o-chlorophenol insoluble matter in an amount of less than 0.5 wt %.

Polyethylene terephthalate composition, manufacturing method therefor, and polyethylene terephthalate film

A polylactic acid based film includes a composition containing a polylactic acid based resin (A), a thermoplastic resin other than polylactic acid based resin (B), and a compound treated with a surface treatment agent as filler (C), the polylactic acid based resin containing a crystalline polylactic acid based resin and an amorphous polylactic acid based resin, and resin (A) accounting for 10 to 95 mass % and resin (B) accounting for 5 to 90 mass % of a combined total of 100 mass % of resin (A) and resin (B), and filler (C) accounting for 10 to 400 parts by mass per a combined total of 100 parts by mass of resin (A) and resin (B).

Polylactic acid based film

A method for producing a polyester resin composition includes conducting polyconensation via esterification or transesterification, wherein an alkali metal phosphate in an amount of 1.3 mol/ton to 3.0 mol/ton and phosphoric acid in an amount of 0.4 to 1.5 times (by mole) that of the alkali metal phosphate are added at a stage between the point of time when the esterication or transesterification has been substantially completed and the point of time when the intrinsic viscosity reaches 0.4. A polyester resin composition obtained by the process exhibits excellent long-term hydrolysis resistance and excellent mechanical characteristics.

Polyester resin composition, process for production of same, and film

The present invention relates to a retardation film using polyester having a photoelastic coefficient of &#x2212;40&#xd7;10Pato 40&#xd7;10Pa. The present invention also relates to a polyester resin for optical use which contains a phosphorus compound, and an alicyclic component and a fluorene derivative component as constituents, and satisfies the following equations (6) and (7):100&#xb0; C.&#x2266;glass transition temperature&#x2266;150&#xb0; C.&#x2003;&#x2003;(6)and1.0&#x2266;(/2+)/&#x2266;5.0&#x2003;&#x2003;(7),wherein Ma is the number of moles of an alkali metal element contained in 1 ton of the polyester resin, Mb is the number of moles of an alkaline earth metal element contained in 1 ton of the polyester resin, Mc is the sum of the number of moles of a zinc element (Zn), a cobalt element (Co) and a manganese element (Mn) contained in 1 ton of the polyester resin, and P is the number of moles of a phosphorus element contained in 1 ton of the polyester resin.

Retardation film and polyester resin for optical use

The invention relates to an improved linear microdialysis probe comprising a continuous length of flexible tubing () having at least one window () formed therein, said window covering at least one part of the circumference of the tubing, while the remaining part forms at least one unbroken connection between a first end of said tubing and a second end of said tubing, said ends adapted to be attached to an inlet for perfusion liquid and the other end forming an outlet for the dialysate, said at least one window () exposing a tubular semipermeable membrane ().

Catalyst for producing polyester and method for producing polyester

A polyester resin composition having an equivalent spherical diameter of 1 mm to 50 mm, a degree of crystallization of not less than 65% and less than 99%, an intrinsic viscosity of not more than 0.7 dl/g and a cyclic trimer content of not more than 0.4% by weight. This polymer resin composition has an excellent color tone, causes no significant viscosity lowering or viscosity rise, and can withstand a process which is exposed to a long-term thermal history. A polyester resin composition having a viscosity suitable for extrusion in a general-purpose manner, a production process thereof, and a polyester film are also provided.

Polyester resin composition, process for producing the same, and polyester film

A polyester composition produced without using an antimony compound as a polycondensation catalyst and including

Polyester resin compositions, catalyst for polyester production, polyester film, and magnetic recording medium

Disclosed are a liquid-crystalline resin laminated film comprising a liquid-crystalline resin layer and a non-liquid-crystalline thermoplastic resin layer laminated on at least one surface of the liquid-crystalline resin layer, and having an interlayer adhesiveness of at least 30 N/cm; and a liquid-crystalline resin laminated film comprising a liquid-crystalline resin layer and a non-liquid-crystalline thermoplastic resin layer laminated on at least one surface of the liquid-crystalline resin layer, and satisfying T &gE;T wherein T and T indicate the thermal deformation temperature of the non-liquid-crystalline thermoplastic resin layer and that of the liquid-crystalline resin layer, respectively, measured through thermal mechanical analysis (TMA). These are obtained by forming a non-liquid-crystalline thermoplastic resin layer on at least one surface of a liquid-crystalline resin layer through co-extrusion, followed by stretching the resulting laminated film.

Liquid crystal resin laminated film, method for manufacturing the same, and circuit board comprising liquid crystal resin laminated film

Polyester composition and biaxially oriented polyester film containing

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Mishima, Japan

Jun Sakamoto