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公开(公告)号：JPH11302520A
公开(公告)日：1999-11-02
申请号：JP11553398
申请日：1998-04-24
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , FUJITA AKIHARU , HIRAYAMA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition having excellent laminating properties, wear resistance during drawing/wiping molding and processing and adhesiveness to a steel plate after retort, by adding cohesive silicas having different average particle diameters to a polyester comprising an aromatic dicarboxylic acid and glycol as constituent components. SOLUTION: This polyester composition comprises (A) a polyester (e.g. polyethylene terephthalate or the like) comprising an aromatic dicarboxylic acid and glycol as main constituent components and (B) (i) a cohesive silica having 5-50 nm primary particle diameter and 0.01-2.0 average particle diameter and (ii) a cohesive silica having 0.05-5.0 average particle diameter. Preferably the amount of the component (B) (i) is 0.01-3 wt.% based on the component A and that of the component (B) (ii) is 0.005-2 wt.%. The component (B) (i) is obtained, for example, by a method for a thermal decomposition method of a silicon halide, etc., and the component (B) (ii) is obtained by a method for decomposing sodium silicate with an acid, etc. Preferably both the components B have 1.0-8.0 cm /g pare volume.
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公开(公告)号：JPH10231413A
公开(公告)日：1998-09-02
申请号：JP3632697
申请日：1997-02-20
Applicant: TORAY INDUSTRIES
Inventor： UEMATSU KIMITAKE , HIRAYAMA TAKASHI , FUJITA AKIHARU
Abstract: PROBLEM TO BE SOLVED: To obtain a film excellent in flavor retention, heat resistance, impact resistance and the evenness of thickness by selecting a film made from a copolyester comprising an aromatic dicarboxylic acid and a glycol, containing a Ge compound and further containing an alkali metal compound and a P compound in a specified ratio. SOLUTION: This film is one made from a copolyester comprising an aromatic dicarboxylic acid and a glycol (e.g. a polyester prepared by copolymerizing isophthalic acid with a polyester obtained from terephthalic acid and ethylene glycol), containing desirably 5-300ppm, more desirably 10-100ppm of a Ge compound (e.g. germanium dioxide) and further containing an alkali metal compound (e.g. KOH) desirably an Na compound and/or a K compound and a P compound (e.g. trimethyl phosphate) in a ratio in the range: 0.1
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公开(公告)号：JPH07108528A
公开(公告)日：1995-04-25
申请号：JP25306793
申请日：1993-10-08
Applicant: TORAY INDUSTRIES
Inventor： TATEBAYASHI TAKEO , SHIMIZU YUZO , HIRAYAMA TAKASHI
IPC: C08J3/12 , B29B9/00 , B29B13/02 , B29K67/00 , C08G63/88 , C08J3/00 , C09J167/00 , C09J167/02
Abstract: PURPOSE:To manufacture raw material chips not fusing to machine walls by setting a multiple fusing peak temperature measured by DSC in a specific range, and allowing the heat absorption amount to be a specific value or more in isophthalic acid copolymcrlc polyester chips. CONSTITUTION:Isophthalic acid copolymeric polyestar chips are determined to be in the range of 100-160 deg.C in its Tm' measured by DSC and 0.1cal/g or more in its heat absorption amount. Herein, Tm' is a multiple fusing peak temperature generated at the side of lower temperature than Tm. In its crystallization, the dry machine wall temperature during chip supply in an atmosphere of gas is a glass-transition temperature of the chips prior to crystallization or lower and raised to the temperature in 10-40min in temperature a formula described below. Herein. the formula is made 3.4M+66.5
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公开(公告)号：JP2002053672A
公开(公告)日：2002-02-19
申请号：JP2000236885
申请日：2000-08-04
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , HIRAYAMA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a gas treatment device for resin chips, which can prevent the outside discharge of the resin chips from a treating region on the treatment of the chips with a flowing gas, even when the flow rate of the gas is not strictly controlled. SOLUTION: This gas treatment device for the resin chips, comprising a cylindrical container receiving the resin chips, a gas-charging port disposed in the lower portion of the cylindrical container, a used gas-discharging port disposed in the upper portion of the cylindrical container, a raw material resin chip-charging port disposed in the upper portion of the cylindrical container, and a used resin chip-charging port disposed in the lower portion of the cylindrical container, characterized by dividing the cylindrical container into a chip main treatment portion placed in the lower portion of the cylindrical container and a chip scatter-preventing portion placed in the upper portion and satisfying a relation of (SU/SL)>=1.2, wherein SL is the cross-sectional area of the chip main treatment portion and SU is the cross-sectional area of the chip scatter- preventing portion.
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公开(公告)号：JPH06179742A
公开(公告)日：1994-06-28
申请号：JP33147792
申请日：1992-12-11
Applicant: TORAY INDUSTRIES
Inventor： SHIMIZU YUZO , KAGAMI NOBUYUKI , HIRAYAMA TAKASHI
IPC: C08L67/00 , B32B15/08 , B32B15/09 , B32B27/36 , C08G63/181 , C08G63/82 , C08G63/86 , C08J5/18 , C08K3/00 , C08L67/02
Abstract: PURPOSE:To obtain a copolyester comprising an aromatic dicarboxylic acid and a glycol as constituent components, containing a specific amount of Ge element, reduced in a content of acetaldehyde, excellent in flavoring properties and useful as a metallic can, etc. CONSTITUTION:The objective copolyester comprises an aromatic dicarboxylic acid (preferably isophthalic acid or naphthalenedicarboxylic acid) and a glycol (preferably neopentyl glycol or cyclohexandimethanol) as principal constituent components and contains 1-500ppm (preferably 10-100ppm) Ge element and has
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Patent Agency Ranking
公开(公告)号：JP2001026638A
公开(公告)日：2001-01-30
申请号：JP20158399
申请日：1999-07-15
Applicant: TORAY INDUSTRIES
Inventor： HIRAYAMA TAKASHI , FUJITA AKIHARU , MATSUOKA HIROSHI
IPC: B05D7/14 , C08G63/183 , C08G63/78 , C08K3/36 , C08L67/02
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester excellent in adhesion and less exfoliative by adding inactive fine particles when a concentration of a terminal carboxylic group in an esterified product is a specific equivalent or less in preparing a polyester from terephthalic acid and ethylene glycol. SOLUTION: Inactive fine particles are added when the concentration of a terminal carboxylic acid in an esterified product is 200 equivalent/106 g or less, preferably 150 equivalent/106 g or less. As the inactive fine particles, are preferably employed aggregative silica particles. The subject method comprises addition, after transportation, of ethylene glycol specifically, in an amount such that the molar ratio thereof to all acid components is 1.4-2.0, which enables the adjustment to the aimed concentration of the terminal carboxylic group. The timing of the addition of inactive fine particles after the addition of ethylene glycol is not particularly limited, but is desirably within 30 min from the viewpoint of prevention of delay in a polymerization reaction cycle and prohibition of by-production of diethylene glycol.
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公开(公告)号：JPH11158259A
公开(公告)日：1999-06-15
申请号：JP33041397
申请日：1997-12-01
Applicant: TORAY INDUSTRIES
Inventor： HIRAYAMA TAKASHI , FUJITA AKIHARU , HIRAOKA HITOSHI
Abstract: PROBLEM TO BE SOLVED: To effect the solid state polymerization of even polyester chips having a low melting point in good productivity by carrying out the polymerization under conditions in which the volume of chips packed into a polymerizer is specified times as large as that of the chips in a settled state. SOLUTION: A nitrogen gas is continuously fed into a vertical solid state polymerization tower 1 from an inlet 6, and starting polyester chips are metered and introduced into the tower 1 from an inlet 2, while an agitator shaft 4 having a plurality of agitating blades 5 is being rotated. The flow rate of the nitrogen gas fed is regulated so that the chips may be floated to such an extent that the volume of the chips packed is 1.03 to 1.18 times as large as that of the chips in a settled state. The temperature of the nitrogen gas is slowly raised so as to heat the polyester chips at a rate of 0.3 deg.C/min or below within the range of from Tg-5 deg.C to Tg+5 deg.C to prevent their fusing. After a specified temperature is reached, heating is continued until a specified degree of polymerization is reached. After the specified polymerization is reached, the above inert gas is changed into a cooling gas to cool the chips. The cooled chips are then withdrawn from the polymerizer.
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公开(公告)号：JPH1160712A
公开(公告)日：1999-03-05
申请号：JP21651197
申请日：1997-08-11
Applicant: TORAY INDUSTRIES
Inventor： MATSUOKA HIROSHI , FUJITA AKIHARU , HIRAYAMA TAKASHI
IPC: C08G63/85
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition not depositing a germanium compound, even when stored for a long period, and useful for producing polyester resins excellent in transparency, impact resistance and the like by including the germanium compound, water, an amine compound and a specific amount of a dihydric alcohol. SOLUTION: This catalyst composition comprises (A) a germanium compound such as germanium dioxide, (B) water, (C) an amine compound such as tetraethylammonium hydroxide, and (D) a dihydric alcohol such as ethylene glycol in an amount of =85 wt.% based on the total amount of the composition. The component A is preferably added in an amount of 0.01-0.1 mol.%, and the component C is preferably added in an amount of 0.3-1.0 fold mole that of the component A. The pH of the catalyst composition is preferably =8.5. The catalyst composition is useful for producing polyethylene terephthalate, polybutylene terephthalate or the like.
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公开(公告)号：JP2002080601A
公开(公告)日：2002-03-19
申请号：JP2000271188
申请日：2000-09-07
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , HIRAOKA HITOSHI , HIRAYAMA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To provide a device for treating resin chips with a gas, wherein no chip is discharged from a processing region even if the flow rate of a gas is not severely controlled in treating resin chips with a gas flowing through them. SOLUTION: The device for treating resin chips with a gas, consists of a long cylindrical vessel containing resin chips, a gas inlet provided on the lower part of the vessel, a spent gas outlet provided on the upper part of the vessel, a fed resin chip inlet provided on the upper part of the vessel, and a treated resin chip outlet provided on the lower part of the vessel, wherein a means of regulating the stream of a gas flowing upward from the lower part of the vessel is provided at a position in the upper part of the vessel below the gas outlet.
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公开(公告)号：JPS62146918A
公开(公告)日：1987-06-30
申请号：JP28641185
申请日：1985-12-19
Applicant: TORAY INDUSTRIES
Inventor： HIRAYAMA TAKASHI , KATAOBE KOICHI , OKAMOTO TSUKASA
Abstract: PURPOSE:To obtain a polyester containing uniform fine particles, which can give a molding of a smooth surface without causing yarn break or the like, by adding a phosphorus compound to a reaction product obtained from a lower alkyl terephthalate and a glycol and adding a specified slurry of CaCO3 to the mixture. CONSTITUTION:A phosphorus compound (e.g., trimethyl phosphate) as a color stabilizer is added to a reaction product obtained by transesterifying a lower alkyl terephthalate component with a glycol. To the polyester reaction prouduct to which said phosphorus compound has been added is added a 10-20wt% concentration slyrry obtained by adding inert inorganic particles such as CaCO3 of an average diameter of primary particle >=10mu in an amount to provide a concentration of 204n40wt% to a (mixed) glycol such as ethylene glycol or its mixture with propylene glycol or the like, kneading the resulting mixture by application of shear in, e.g., a mixer to decrease the content of aggloverates, subjecting the mixture at a concentration of 10-30wt% to dispersion treatment by high-speed agitation by means of a high-speed agitator such as a jet agitator impeller and diluting the mixture.
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