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公开(公告)号：JPH08225717A
公开(公告)日：1996-09-03
申请号：JP31427595
申请日：1995-12-01
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , ODAJIMA AKIO
Abstract: PURPOSE: To provide the subject composition containing organic polymer particles having a specific particle size distribution, exhibiting excellent slipperiness, free from generation of friction scratch and abraded dust, giving a film having small number of coarse protrusions on the surface and useful for a high-density magnetic recording medium, etc. CONSTITUTION: This polyester composition is produced by compounding (A) a polyester composed mainly of polyethylene terephthalate, polyethylene naphthalate, etc., with (B) organic polymer particles having a relative standard deviation of the particle diameter of =5 times the average diameter of =60%). The component B has an average particle diameter of preferably 0.01-2.0μm and the amount of the component B in the composition is preferably 0.01-10wt.%.
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公开(公告)号：JPH03229725A
公开(公告)日：1991-10-11
申请号：JP2476790
申请日：1990-02-02
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , WATANABE TADASHI , KAMAYA SATORU
Abstract: PURPOSE:To carry out the drying and solid-phase polymn. of polyester chips of which the main repeating unit is ethylene terephthalate without degrading the quality of the chips and to shorten the time taken for raising the temp. in the solid-phase polymn. by thermally treating the chips under specific conditions. CONSTITUTION:After polyester chips of which the main repeating unit is ethylene terephthalate are heated under atmospheric pressure to raise its temp. to 95-120 deg.C, the ambient pressure is lowered to 20Torr or lower. Next, an inert gas is introduced until the ambient pressure reaches atmospheric pressure or higher. Then the chips are thermally treated to raise its mean temp. to 180 deg.C and kept at 180 deg.C or higher in a vacuum for 4hr or longer.
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13.发明专利
公开(公告)号：JP2006347004A
公开(公告)日：2006-12-28
申请号：JP2005176151
申请日：2005-06-16
Applicant: TORAY INDUSTRIES
Inventor： HASEGAWA MASAHIRO , HAYASHI GEN
Abstract: PROBLEM TO BE SOLVED: To provide a laminated polyester film which is little in the precipitation of a cyclic trimer and exhibits excellent electromagnetic conversion characteristics when made into a metal thin film type magnetic recording medium. SOLUTION: The laminated polyester film for the metal thin film type recording medium comprises a polyester layer A located in the side of a surface A where a magnetic layer is provided, and a polyester layer B located in the side of a surface B where a back coat layer is provided. The polyester layer A contains a polyester A having a cyclic trimer content of ≤0.7 wt% and an intrinsic viscosity of 0.4-0.65, the surface roughness Ra of the surface A is 0.5-4 nm, and the surface roughness of the surface B is 5-20 nm. COPYRIGHT: (C)2007,JPO&INPIT
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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：JPH11300738A
公开(公告)日：1999-11-02
申请号：JP11553298
申请日：1998-04-24
Applicant: TORAY INDUSTRIES
Inventor： KAKIMOTO SEIJI , HAYASHI GEN , NAKAMURA SHINYA
IPC: B29B9/06
Abstract: PROBLEM TO BE SOLVED: To exactly grasp the abnormal flow of strands with a very simple means by a method wherein a means, which stops the discharge of the strands when the abnormality of temperature is judged by a temperature abnormality judging means for the temperature detected with a temperature detecting means provided near a strand guiding device, is equipped. SOLUTION: A strand guiding device 6, which movingly guides strands 5 discharged from a die head 3 while cooling them down, is provided. The guide device 6 connects a first chute plate 7 to a strand guide groove plate 9. Further, a cutting device 10 for cutting the strands 5 into the shape of chips is equipped ahead the strand guide groove plate 9. In this case, just before the cutting device 10 and near the top surface of the strand guide groove plate 9, a temperature detecting means 11 is provided. Then, an output signal 16 concerning a detected temperature is sent to a control unit 12. In this case, in which the detected temperature becomes higher than the temperature at a steady running, the abnormality of the detected temperature is judged and a signal 17 for stopping the discharge of strands is sent to a strand forming device 1.
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Patent Agency Ranking
公开(公告)号：JPH09111101A
公开(公告)日：1997-04-28
申请号：JP26533195
申请日：1995-10-13
Applicant: TORAY INDUSTRIES
Inventor： OYAMA MASAHIKO , OKAWA HIROMOTO , HAYASHI GEN
Abstract: PROBLEM TO BE SOLVED: To obtain a polyester composition which can give a film improved in easy slipperiness and wearing resistance by mixing a polyester with a specified calcium carbonate. SOLUTION: A polyester is mixed with 0.005-5.0wt.% calcite calcium carbonate particles having a mean particle diameter of 0.2-1.0μm, a coefficient(%) of particle diameter variation represented by the formula: diameter (X) of disperesed particle/diameter (Y) of agglomerated particle ×100 (where X is the diameter of a particle before being subjected to ultrasonic dispersion treatment, and Y is the diameter of a particle after being subjected to ultrasonic dispersion treatment) of 70-95% and a particle size distribution ratio represented by d25 /d75 of 2, 5 or below (wherein d25 is the particle diameter at a 25% cumulation calculated from the side of larger particle diameters in the cumulative volume distribution curve of particles, and d75 is the particle diameter at a 75% cumulation calculated from the side of larger particle diameters in the cumulative volume distribution curve of particles) and optionally surface-treated with a polycarboxylate and optionally 0.005-5.0wt.% aluminum oxide particles having a mean particle diameter of 0.01-0.3μm.
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公开(公告)号：JPH0967509A
公开(公告)日：1997-03-11
申请号：JP22640295
申请日：1995-09-04
Applicant: TORAY INDUSTRIES
Inventor： MIZOGUCHI MAMORU , HAYASHI GEN , ODAJIMA AKIO
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition which has excellent moldability and can give a film excellent in slipperiness, abrasion resistance and scratch resistance by using internal deposition type particles having a specified particle diameter and a specified particle diameter distribution. SOLUTION: This polyester composition contains internal deposition type particles prepared by performing the reaction for producing a polyester in the presence of 0.05-3.0mol%, based on the total dicarboxylic acid component, total of an alkali metal compound and an hlkaline earth metal compound and 0.05-1.5mol%, based on the total dicarboxylic acid component, phosphorus compound to deposit particles during the reaction. Because the internal deposition type particles have a mean particle diameter of 0.5-10.0μm and an at least bimodal particle diameter distribution, this composition has excellent moldability such as fiber-forming properties and film-forming properties and can give a molding excellent in slipperiness and surface properties.
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公开(公告)号：JPH08127647A
公开(公告)日：1996-05-21
申请号：JP26883094
申请日：1994-11-01
Applicant: TORAY INDUSTRIES
Inventor： ODAJIMA AKIO , HAYASHI GEN , OYAMA MASAHIKO
IPC: C08L67/00 , C08G63/183 , C08G63/78 , C08L67/02 , C08L83/04
Abstract: PURPOSE: To obtain a polyester composition providing a film having uniform and fine surface, excellent wear resistance and falling resistance by adding organic particles and an organic polysiloxane to a reaction system at a specific stage of a polycondensation process. CONSTITUTION: First, terephthalic acid or its ester-forming derivative is transesterified or esterified with glycol. Then the reaction product is subjected to polycondensation reaction. At a stage in which the intrinsic viscosity in the polycondensation process does not exceed 0.2, organic particles (preferably cross-linked polymer particles having
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公开(公告)号：JPH0691635A
公开(公告)日：1994-04-05
申请号：JP24083992
申请日：1992-09-09
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , SUZUKI MASARU
Abstract: PURPOSE:To provide the preparation method for a polyester composition of superior shaping properties, product quality and performance with little lowering of limiting viscosity of polyester and without deterioration of operational stability when inorganic particles and organic particles are added and mixed to polyester by using a vented molding machine. CONSTITUTION:When a polyester composition to which inorganic particles and/or organic particles are added and mixed is prepared by a vented molding machine 1, liquid slurry in which inorganic particles and/or organic particles are dispersed in a medium is added to polyester flowing in the vented molding machine 1, and polyester is retained and melted substantially just after adding the slurry, and also the midum for slurry is gasified and removed through a vent 6 provided on the upstream side of the adding position 7 of slurry.
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公开(公告)号：JPH04303604A
公开(公告)日：1992-10-27
申请号：JP6854991
申请日：1991-04-01
Applicant: TORAY INDUSTRIES
Inventor： HAYASHI GEN , TANBA OTONAO , FURUYAMA HIDETOSHI
Abstract: PURPOSE:To obtain polyester particles having favorable workability in film-making or filament-making process by a method wherein heat treatment is carried out under the condition that the ratio of water to the polyester particle and the temperatures of the polyester particle and of the water to be added are set to lie within specified ranges. CONSTITUTION:Rectangular parallelepiped polyethylene terephthalate copolymer having the predetermined diameter, for example, is charged from a polyester particle charging port 4 in a device. Next, polyester particles are heated by heating medium through both the spraying of water heated up to the predetermined temperature from water spraying nozzles 7 provided at the upper part of the device and the agitation of agitating blades 9. The weight ratio of the polyester particle to the water to set to be 100:0.5-100:10. Steam developed through the spraying of the water is discharged through a steam suction port 8, resulting in keeping the interior of a main body at normal pressure. After the predetermined period of time, the spraying of the water is stopped and the polyester particles are taken out of the device through a polyester particle discharging port 5. No fusion of the particles occurs in the drying process of the obtained polyester particles. Further, the obtained polyester particles are suitable for the forming of film or the like.
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