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公开(公告)号：JP2002201343A
公开(公告)日：2002-07-19
申请号：JP2001328646
申请日：2001-10-26
Applicant: TORAY INDUSTRIES
Inventor： SHIMIZU YUZO , SASAKI TOSHIHIRO , NARUSE YOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition comprising a large amount of silica inorganic particles having hygroscopicity and a polyester fiber having excellent weather resistance, excellent mechanical characteristics and excellent hygroscopicity which is sufficiently high to obtain comfortableness to wear and suitably usable as a woven or a knitted fabric, etc., for a comfortable material such as an underwear, a sportswear or a lining fabric. SOLUTION: This polyester composition comprises 1-20 wt.% of silica inorganic particles having 0.01-10 μm average particle diameter and antimony element in an amount within the range of
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公开(公告)号：JP2000239918A
公开(公告)日：2000-09-05
申请号：JP4249899
申请日：1999-02-22
Applicant: TORAY INDUSTRIES
Inventor： MATSUMURA YOSHITAKA , SASAKI TOSHIHIRO , SHIMIZU YUZO
Abstract: PROBLEM TO BE SOLVED: To obtain the subject conjugate fiber having high commercial value, gloss, dry feeling and feeling and useful for a sports clothing, etc., by using a hydrophilic component and a fiber-forming property as constituting components and having respectively prescribed humidity-absorbing and releasing parameter (ΔMR) and a flatness degree. SOLUTION: This fiber is a core-sheath conjugate fiber comprising a hydrophilic component 1 such as a polyetheresteramide-based compound and a polyetherester-based compound and a fiber forming polymer 2 such as polyethylene terephthalate as constituting components, and has >=1.0 % of ΔMR and 1.05-3.0 of flatness degree of the formula: flatness degree = (long distance in fiber cross section/short distance in fiber cross section). Preferably, a compound having ΔMR>=8% is used as the hydrophilic component, and the hydrophilic component is used as one component and a conjugate fraction is 5-90 wt.%, then a hollow part 3 is in the conjugate fiber structure, thus hollow fraction is 1-20%.
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公开(公告)号：JPH08157617A
公开(公告)日：1996-06-18
申请号：JP29958694
申请日：1994-12-02
Applicant: TORAY INDUSTRIES
Inventor： OKASAKA HIDESADA , MORITA TORU , SASAKI TOSHIHIRO
Abstract: PURPOSE: To prepare the subject film suitable as a substrate film for a magnetic recording medium requiring fine and uniform surface projections, not causing occurrence of defect of foreign matters resulting from surface precipitate and contamination with contact materials, containing an amount of a low-molecular weight substance precipitated on the surface equal to or smaller than a specific amount. CONSTITUTION: This film is a polyethylene-2,6-naphthalate film containing low-molecular weight substance precipitated on the surface when heated at 170 deg.C for three hours and contains wax having 20-250 deg.C melting point. This film, for example, is obtained by heat-treating polyethylene-2,6-naphthalate granules in a gas atmosphere of noncirculating nitrogen under normal pressure at 150-250 deg.C and making it into a film.
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公开(公告)号：JPH07258393A
公开(公告)日：1995-10-09
申请号：JP5615094
申请日：1994-03-25
Applicant: TORAY INDUSTRIES
Inventor： AOYAMA MASATOSHI , SASAKI TOSHIHIRO , OSHIMA KATSUNORI
IPC: C08G63/189 , C08G63/181 , C08G63/78 , C08G63/80
Abstract: PURPOSE:To obtain the polyester nonproblematic in the unevenness of agitation during melt polymerization and the unevenness of extrusion after melt polymerization. CONSTITUTION:This polyester is one obtained by effecting the solid-state polymerization of polyester obtained by solution polymerization, having an intrinsic viscosity of 0.45 or below and mainly consisting of repeating polyethylene-2,6- naphthalate units.
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公开(公告)号：JPH0657107A
公开(公告)日：1994-03-01
申请号：JP26994791
申请日：1991-07-19
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To improve the transparency, surface smoothness, abrasion resistance, etc., of a polyester molding such as a film or fiber by incorporating fine particles of a functional organic polymer which have low strength in deformation into a thermoplastic polyester. CONSTITUTION:Fine particles of an organic polymer having a functional group which have a 10%-deformation strength S10 satisfying the relationship of the formula are incorporated into a polyester [e.g. poly(ethylene terephthalate)] to produce the polyester composition. Examples of the particles include butyl acrylate/divinylbenzene copolymer particles and octyl acrylate/divinylbenzene copolymer particles. Due to the low strength, softness, and functional group, the particles incorporated have an improved affinity for the polyester and hence are less apt to fall off.
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Patent Agency Ranking
公开(公告)号：JPH0586269A
公开(公告)日：1993-04-06
申请号：JP25116491
申请日：1991-09-30
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To obtain the subject themoplastic polyester composition capable of producing films and fibers excellent in electrostatic casting characteristics, abrasion resistance and particle dispersibility. CONSTITUTION:A polyester (e.g. polyethylene terephthalate, etc.), having 5X10 to 5X10 OMEGA.cm of melt resistivity is compounded with silica powder having >=2 D1/D2, a ratio of a particle size (D1 mmu) measured by dynamic light scattering and one (D2 mmu) measured by nitrogen gas absorption, and straight or branched shape of 60-600mmu D1 and 41-100mmu size. Total content of silica in the composition is 1-20wt.%, preferably 0.01-5wt.% from the stand point of slipperiness and surface smoothness of a molded article.
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公开(公告)号：JPH0532872A
公开(公告)日：1993-02-09
申请号：JP27604691
申请日：1991-07-29
Applicant: TORAY INDUSTRIES
Inventor： SASAKI TOSHIHIRO , YOSHIDA MINORU , SUZUKI MASARU
Abstract: PURPOSE:To provide the title compsn. which is molded into a film or fiber excellent in affinity, slipperiness, and resistance to shaving by compounding a thermoplastic polyester resin with two kinds of org. polymer particles: one consisting of particles depositing in the process for producing a polyester resin and having a specified mean diameter and the other being soft and having a low strength. CONSTITUTION:The title compsn. is prepd. by compounding a thermoplastic polyester resin with two kinds of org. polymer particles: one consisting of particles depositing in the process for producing a polyester resin and having a mean particle diameter of 0.01-5mum and the other having a strength under 10% deformation (S10) satisfying the equation: 0 ).
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公开(公告)号：JPH0488016A
公开(公告)日：1992-03-19
申请号：JP20294390
申请日：1990-07-30
Applicant: TORAY INDUSTRIES
Inventor： YOSHIDA MINORU , SASAKI TOSHIHIRO , UEDA TOMOAKI
IPC: C08J5/18 , C08G63/78 , C08K3/22 , C08L67/00 , C08L67/02 , D01F6/62 , D01F6/84 , D01F6/92 , G11B5/62 , G11B5/73 , G11B5/733
Abstract: PURPOSE:To obtain the subject polyester, fit for obtaining films excellent in abrasion resistance and suitable as magnetic tapes, etc., by using at least two or more superfine aluminum oxide particles having different crystal structures together and dispersing the particles in a solvent. CONSTITUTION:A slurry prepared by subjecting at least two or more aluminum oxide particles having different crystal structures to wet dispersing treatment in the presence of a solvent is added to raw materials at any point to the completion of polymerization reaction to afford the objective polyester containing an aromatic dicarboxylic acid as a principal acid component and an aliphatic glycol as a principal glycol component. Furthermore, e.g. alpha-type aluminum oxide particles, gamma-type active aluminum oxide particles and amorphous aluminum oxide particles are preferably used as the aforementioned aluminum oxide particles.
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公开(公告)号：JPH0376747A
公开(公告)日：1991-04-02
申请号：JP21569589
申请日：1989-08-21
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , SASAKI TOSHIHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To prepare a polyester compsn. excellent in the adhesive properties, transparency, sliding properties, and mechanical properties by compounding specific inert particles into a polyester obtd. from a specific acid component and a diol component comprising an alkylene glycol. CONSTITUTION:100 pts.wt. polyester obtd. from an acid component comprising terephthalic acid, an arom. dicarboxylic acid having a metal sulfonate group (e.g. 5-sodiumsulfoisophthalic acid) and a 4-20C aliph. dicarboxylic acid (e.g. adipic acid) and a diol component comprising an alkylene glycol (e.g. ethylene glycol) is compounded with 0.005-3 pts.wt. inert particles having a mean particle diameter of 0.01-1mum and selected from group consisting of silica, CaCO3, kaolin, BaSO4, talc, and a crosslinkage polymer.
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公开(公告)号：JPH0339352A
公开(公告)日：1991-02-20
申请号：JP17453689
申请日：1989-07-06
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , SASAKI TOSHIHIRO , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a composition for master polymers, capable of providing molded products, such as film, excellent in slipperiness and shaving resistance by blending thereof with polyethylene terephthalate and molding the aforementioned blend by blending a specific copolyester with a specified amount of inert particles having a specific particle diameter. CONSTITUTION:A composition, obtained by blending a copolyester containing an acid component containing >=30mol% terephthalic acid and a glycol component containing >=30mol% ethylene glycol with 0.5-30wt.%, preferably 1-15wt.% inert particles (e.g. silicon dioxide or alumina) with 0.01-3mu, preferably 0.05-2mu average particle diameter and having
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