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    FUSION PREVENTING DEVICE FOR POLYESTER GRANULE
    1.
    发明专利
    FUSION PREVENTING DEVICE FOR POLYESTER GRANULE 失效

    公开(公告)号：JPH07171829A

    公开(公告)日：1995-07-11

    申请号：JP31983593

    申请日：1993-12-20

    Applicant: TORAY INDUSTRIES

    Inventor： KAWAJI TOMIO ,  YAMADA TAKAO ,  YAMAUCHI HIROSHI

    IPC: B29B9/16 ,  B29K67/00

    Abstract: PURPOSE:To prevent the adhesion of granules to the inner wall of a drier by forming a polyester granule path between a rotor and a screen in a fusion preventing device. CONSTITUTION:When polyester granules are loaded from a supply port 1 of a fusion preventing device by a fixing amount, the granules are fed in between a rotor 4 and a screw 7 by a transporting screw 3 that has been previously rotated. The granules are rubbed with each other between the rotor 4 with projection rotating at high speed and the octagonal screen 7. After the surfaces of the granules are crystallized by the rubbing action, the granules are discharged from a discharge port 8. Air from an air supply port 10 is blown from slits through the inside of the screw 3 and the inside of the rotor 4, whereby powder produced by the rubbing action is discharged from a discharge port 11 through slits of the screen 7. Therefore, the fusion of the granules to the inner wall of a drier and to each other can be prevented by their crystallization.

    PREPARATION OF FLAKES OF POLYESTER OLIGOMER
    4.
    发明专利
    PREPARATION OF FLAKES OF POLYESTER OLIGOMER 失效

    公开(公告)号：JPS5452050A

    公开(公告)日：1979-04-24

    申请号：JP11790077

    申请日：1977-10-03

    Applicant: TORAY INDUSTRIES

    Inventor： IKEUCHI HIROYUKI ,  SUGANUMA HEIROKU ,  YAMADA TAKAO

    IPC: C08G63/00 ,  C07C67/48 ,  C07C69/82 ,  C08G63/78

    Abstract: PURPOSE:To prepare high purity title flakes having excellent handleability and long term storability, and valuable as an industrial raw material, by keeping the cooling part of a flaking apparatus to a specific temperature, and maintaining the flakes in the apparatus in an inert gas atmosphere. CONSTITUTION:In the preparation of flakes from molten bis-2-hydroxyethyl terephthalate and/or its oligomer wherein the molar ratio of ethylene glycol unit to terephthalic acid unit is between 0.8 and 1.8, the cooling part of the flaking apparatus is cooled with a coolant of a temperature of 40-200 deg.C to solidgy the oligomer, and the atmosphere the flaking apparatus and a flakes reservoir are replaced with an inert gas such as nitrogen.

    APPARATUS FOR ADDING SUBSTANCE TO VESSEL
    6.
    发明专利
    APPARATUS FOR ADDING SUBSTANCE TO VESSEL 失效

    公开(公告)号：JPS553876A

    公开(公告)日：1980-01-11

    申请号：JP7786278

    申请日：1978-06-27

    Applicant: TORAY INDUSTRIES

    Inventor： YAMADA TAKAO ,  OGATA NORIO

    IPC: C08F2/00 ,  B01J4/00 ,  C08G85/00

    Abstract: PURPOSE:To accomplish easy automatic checking of the remaining amount or the existence of substance in the auxiliary vessel for adding thereof to the vessels as required once stored in addition of the substance to the vessels such as reaction device and tank. CONSTITUTION:This apparatus is provided with an auxiliary vessel 2 having an opening/closing lid 7 for feeding substance to a vessel on the side thereof and being connected to the vessel 1. The auxiliary vessel is adapted to store substance to be added to the vessel. In addition, it is equipped with a vertically movable substance detecting stick 11 which is charged downward by a spring inserted into the vessel and a stick position checking device which senses the vertical movement position of the stick inside. With such an arrangement, when matters (e.g. capsules 6) are added to the vessel 1, the matter detecting stick moves downward. Accordingly, the absence of matters in the vessel can be discriminated easily.

    BATCHWISE ESTERIFICATION
    7.
    发明专利
    BATCHWISE ESTERIFICATION 失效

    公开(公告)号：JPS5441834A

    公开(公告)日：1979-04-03

    申请号：JP10493177

    申请日：1977-09-02

    Applicant: TORAY INDUSTRIES

    Inventor： MIYAMOTO TETSUYA ,  YAMADA TAKAO ,  INOUE SATORU

    IPC: C07C69/82 ,  C07C67/08

    Abstract: PURPOSE:The recycled slurry of ethylene glycol and terephthalic acid is fed stably into a plurality of batchwise polymerizers to produce bis-beta-hydroxyethyl terephthalate and/or its oligomers. CONSTITUTION:A slurry of terephthalic acid and ethylene glycol wherein the molar ratio of EG/TPA is 0.95 or more is stored in slurry tank 2, taken out of it with primary snake pump 3 and recycled in pipe 4. The slurry is fed from the arbitrary points of the recycling pipe through branching balve 5 and metering pump 7 into a plurality of esterifiers 9. At this time counter 8 counts the revolution number of the feed pump for the slurry and the amount fed is controlled. Thus, the batchside esterification is conducted to produce the objective polyester. EFFECT:The cyclization of the slurry can keep the uniformity and the constant molar ratio and prevent the clogging of pipes.

    CHEMICAL REACTOR
    8.
    发明专利
    CHEMICAL REACTOR 失效

    公开(公告)号：JP2002173525A

    公开(公告)日：2002-06-21

    申请号：JP2000368153

    申请日：2000-12-04

    Applicant: TORAY INDUSTRIES

    Inventor： YAMADA TAKAO ,  ASAI KEIICHI

    IPC: B01F15/00 ,  B01F15/02 ,  C08G63/78

    Abstract: PROBLEM TO BE SOLVED: To provide a chemical reactor that permits the scraping work to be automated and streamlines the scraping work with the productivity increased. SOLUTION: In a chemical reactor that has an outlet 9 for reaction mixture opened at the bottom of the reactor vessel 1 and is equipped with the outlet- closing plate 11 that slides and reciprocates alternatively between the escape position from the bottom end of the outlet and the position to close the outlet 9, a scraping blades 13 is arranged at the front end of the outlet-closing plate 11 in the outlet-closing position and is made movable in the perpendicular direction crossing the reciprocation motion of the outlet-closing plate 11.

    BATCH TYPE POLYMERIZATION PROCESS AND APPARATUS THEREFOR
    9.
    发明专利
    BATCH TYPE POLYMERIZATION PROCESS AND APPARATUS THEREFOR 失效

    公开(公告)号：JPH11199662A

    公开(公告)日：1999-07-27

    申请号：JP490498

    申请日：1998-01-13

    Applicant: TORAY INDUSTRIES

    Inventor： ASAI KEIICHI ,  YAMADA TAKAO

    IPC: C08G63/78 ,  C08G85/00

    Abstract: PROBLEM TO BE SOLVED: To lower the occurrence of deteriorated polymer and decrease the product loss. SOLUTION: The polymerization every batch is carried out in a reactor of which the discharge opening at the bottom is sealed with the polymer solidified by cooling. A receptacle 13 is disposed to the outside of the discharge opening at the bottom of the reactor so that it may alternately shift between the position opposing to the discharge opening 12 and the waiting position. Every batch of the polymerization, the receptacle 13 is set to the opposing position to receive the polymer and the polymer is solidified by cooling thereby sealing the discharge opening 12.

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