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公开(公告)号：JPH03146547A
公开(公告)日：1991-06-21
申请号：JP28712489
申请日：1989-11-01
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , OKAMOTO MASARU , ICHIKAWA YASUNORI
Abstract: PURPOSE:To obtain a polyester composition having excellent flameretardancy and mechanical properties and good retention stability by compounding a specific amount of a specific brominated polystyrene to a polyester having melt- anisotropy. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts.wt. of a melt-anisotropic polyester containing ethylenedioxy unit as essential component and having a meltviscosity of 10-15,000 poise with (B) 0.5-60 pts.wt. of a brominated polystyrene having a weight-average molecular weight of 30X 10 -100X10 , especially a polymer containing the structural unit of formula as main constituent component.
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公开(公告)号：JP2002144330A
公开(公告)日：2002-05-21
申请号：JP2000342752
申请日：2000-11-10
Applicant: TORAY INDUSTRIES
Inventor： MIYAUCHI KUNIHIKO , KUREMATSU TOSHIO , ICHIKAWA YASUNORI
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for manufacturing a liquid crystalline resin pellet improving a discharge stability. SOLUTION: The method for manufacturing the liquid crystalline resin pellet comprises the steps of distributing an excess cooling water of an amount of 1.1 to 10 times as large as a cooling water amount at a normal time of pelletizing onto a trough 7 in response to a signal obtained by sensing a distribution fault of a strand group 3 generated on the trough 7 up to an arrival at a cutter by a sensor 11 when the group 3 of the liquid crystalline resin from a reaction container 1 is discharged onto the trough 7.
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公开(公告)号：JP2551175B2
公开(公告)日：1996-11-06
申请号：JP32338089
申请日：1989-12-12
Applicant: TORAY INDUSTRIES
Inventor： INOE SHUNEI , OKAMOTO MASARU , ICHIKAWA YASUNORI
IPC: C08L67/00 , C08L67/02 , C08L67/03 , C08L101/00 , C08L101/04
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公开(公告)号：JPH08151448A
公开(公告)日：1996-06-11
申请号：JP24433395
申请日：1995-09-22
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , YAMAMOTO SHOJI , INOUE SHUNEI
Abstract: PURPOSE: To decrease the amt. of a residual liq. crystal polymer in a polycondensation reactor and improve the yield and heat stability of the polymer produced by using a specific polycondensation reactor. CONSTITUTION: In a polycondensation reactor 6, a stirrer is installed which has a bottom blade 5 and helical ribbon blades 4 attached to at least two shafts 3 of a frame which has no central shaft. The shafts 3 are located at a distance of shorter than 1/5 of the diameter of the reactor from the wall surface of the reactor. In the reactor 6, p-hydroxybenzoic acid, a diaminated arom. dihydroxy compd., and a bis(β-hydroxyethyl) ester of an arom. dicarboxylic acid are subjected to polycondensation by acetic acid removal to obtain a liq. crystal polymer having a logarithmic viscosity of 0.3dl/g or higher (in pentachlorophenol at 60 deg.C in a concn. of 0.1g/dl) and a melt viscosity of 10-20,000P.
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公开(公告)号：JPH06192403A
公开(公告)日：1994-07-12
申请号：JP34462492
申请日：1992-12-24
Applicant: TORAY INDUSTRIES
Inventor： KUREMATSU TOSHIO , ICHIKAWA YASUNORI , INOUE SHUNEI
Abstract: PURPOSE:To improve the yield of pellets of a liq. crystalline polyester which contains little contaminants and does not clog a nozzle. CONSTITUTION:A liq. crystalline polyester is produced by continuous batch polymn. wherein a liq. crystalline polyester is formed by soln. polymn. in a polymn. vessel equipped with a feed charge or liq. transporting port, a polymerizate discharge port, a stirrer, and a jacket, and the resulting polymer melt is discharged, while the next batch of feedstock is fed to the vessel to repeat the polymn. The polymn. is carried out under such a condition that the polymer melt is discharged from the vessel until the amt. of melt remaining reaches 30kg per m or lower of the internal vol. of the vessel before the next batch is fed.
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Patent Agency Ranking
公开(公告)号：JPH04348185A
公开(公告)日：1992-12-03
申请号：JP12055691
申请日：1991-05-27
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , YAMANAKA TORU , ICHIKAWA YASUNORI
Abstract: PURPOSE:To obtain the subject composition having small mechanical anisotropy such as dimensional accuracy by adding specific amounts of a specific epoxy compound and a filler to a thermotropic liquid crystal polyester. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts.wt. of a thermotropic liquid crystal polyester composed of the units selected from aromatic oxycarbonyl unit, aromatic dioxy unit, aromatic dicarbonyl unit, ethylenedioxy unit, etc., with (B) 0.01-20 pts.wt. (especially preferably 0.1-10 pts.wt.) of an epoxy compound of formula and (C) 0-200 pts.wt. (preferably 10-150 pts.wt.) of a filler such as glass fiber, wollastonite and alumina.
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公开(公告)号：JPH04225021A
公开(公告)日：1992-08-14
申请号：JP40850290
申请日：1990-12-27
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , YAMANAKA TORU , INOUE SHUNEI
Abstract: PURPOSE:To obtain the subject polymer having excellent color tone and high heat-resistance by melting and polymerizing terephthalic acid, p-hydroxybenzoic acid, 4,4'-dihydroxy-biphenyl and other glycol component and carrying out solid- phase polymerization of the polymer under specific condition. CONSTITUTION:The objective liquid crystal polyester having a logarithmic viscosity of 1.5-4.5dl/g (measured in pentafluorophenol at a concentration of 0.1g/dl at 60 deg.C) and composed of the structural units of formula I, formula II (R1 is biphenylene, phenylene, etc.), formula III and formula IV (R2 is phenylene, biphenylene, etc.) can be produced by mixing p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl, acetic anhydride and polyethylene terephthalate, reacting at 130-250 deg.C for 5hr in nitrogen gas atmosphere, subjecting to deacetylation polymerization reaction at the ultimate vacuum degree of
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公开(公告)号：JPH0481451A
公开(公告)日：1992-03-16
申请号：JP19653790
申请日：1990-07-25
Applicant: TORAY INDUSTRIES
Inventor： INOUE SHUNEI , OKAMOTO MASARU , ICHIKAWA YASUNORI
Abstract: PURPOSE:To obtain the subject composition having excellent heat-resistance, moldability and fluidity, giving a molded article having high mechanical strength and small mechanical anisotropy and suitable for electrical and electronic parts, etc., by compounding a liquid crystal polyester with a specific amount of a flaky or granular filler having a specific free water percentage. CONSTITUTION:The objective composition is produced by compounding (A) 100 pts. wt. of a liquid crystal polyester containing ethylenedioxy unit as essential component and having a melting point of 280-350 deg.C and a melt viscosity of 10-15,000 poise and (B) 1-200 pts.wt. (preferably 20-150 pts.wt.) of a flaky or granular filler (e.g. calcium silicate and calcium phosphate) having a free water percentage of >0.l5% (preferably >=0.2%) after drying the filler to a free water percentage of
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公开(公告)号：JPH03281525A
公开(公告)日：1991-12-12
申请号：JP85390
申请日：1990-01-05
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI , INOUE SHUNEI , YAMAMOTO YOSHIYUKI
Abstract: PURPOSE:To obtain elastic polyester useful as automobile parts, electric and electronic parts, mechanical part, etc., having excellent heat resistance, weather resistance, rubbery elasticity and mechanical properties, by feeding a liquid crystal polyester and lactone compound to an extruder and continuously subjecting to addition polymerization. CONSTITUTION:A liquid crystal polyester (preferably one consisting of structural units shown by formula I, formula II, etc.) and a lactone compound (preferably epsilon-caprolactone) are fed to an extruder and continuously subjected to addition polymerization to give the objective polyester comprising a liquid crystal polyester unit and a polylactone unit.
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公开(公告)号：JPH0359084B2
公开(公告)日：1991-09-09
申请号：JP5067787
申请日：1987-03-05
Applicant: TORAY INDUSTRIES
Inventor： ICHIKAWA YASUNORI
IPC: C08F6/00 , C08F6/06 , C08F6/28 , C08F12/00 , C08F12/08 , C08F36/04 , C08F236/10 , C08F257/02
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