公开(公告)号：JPH11130950A

公开(公告)日：1999-05-18

申请号：JP29986697

申请日：1997-10-31

Applicant: TORAY INDUSTRIES

Inventor： ISHII HIROMITSU ,  OOME HIROKAZU ,  HIRATSUKA MOTONORI

IPC: B60T1/00 ,  C08J5/08 ,  C08K3/00 ,  C08K5/11 ,  C08K5/13 ,  C08K5/20 ,  C08K7/14 ,  C08K9/08 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To provide a polyethylene terephthalate resin compsn. excellent in mechanical properties, heat resistance, injection moldability, surface appearance, and fatigue resistance and a molded article prepd. therefrom. SOLUTION: This compsn. is prepd. by compounding 100 pts.wt. polyethylene terephthalate resin with 10-100 pts.wt. glass fibers with an average diameter of 8-12 μm and with 0.6-1.5 wt.% binder (pref. bisphenol A diglycidyl ether and/or a phenol novolak epoxy compd.) attached thereto, 0.1-10 pts.wt. inorg. layered compd. having an average particle size of 0.1-4 μm, and 0.1-10 pts.wt. lubricant (pref. a fatty acid ester and/or a salt thereof).

公开(公告)号：JPH10330469A

公开(公告)日：1998-12-15

申请号：JP3520398

申请日：1998-02-17

Applicant: TORAY INDUSTRIES

Inventor： OOME HIROKAZU ,  HIRATSUKA MOTONORI

IPC: C08J5/00 ,  B29C45/00 ,  B29K67/00 ,  C08G63/183 ,  C08G63/85

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polybutylene terephthalate excellent in toughness by a method using a continuous direct esterification producing less foreign materials. SOLUTION: This method for producing a polybutylene terephthalate obtained by performing the esterification of dicarboxylic acids consisting mainly of terephthalic acid with diols consisting mainly of 1,4-butane diol, and then a polycondensation reaction of the obtained ester, is to perform the esterification reaction in 1.1-1.6 molar ratio of the diols based on the dicarboxylic acids in the presence of an organic titanium and an organic tin compounds and using the organic titanium compound in an amount satisfying the formula: the amount of the organic titanium compound (mol.%)

公开(公告)号：JPH10330468A

公开(公告)日：1998-12-15

申请号：JP3520298

申请日：1998-02-17

Applicant: TORAY INDUSTRIES

Inventor： OOME HIROKAZU ,  HIRATSUKA MOTONORI ,  NOGAMI KATSUO

IPC: C08G63/183 ,  C08G63/78 ,  C08G63/85

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polybutylene terephthalate excellent in quality by a method using a continuous direct esterification while suppressing side reactions. SOLUTION: This method for producing a polybutylene terephthalate obtained by performing the esterification of dicarboxylic acids consisting mainly of terephthalic acid with diols consisting mainly of 1,4-butane diol, and then performing a polycondensation reaction of the obtained ester, is to perform a first step of the esterification reaction in the presence of an organic tin compound and substantially without the presence of an organic titanium compound until attaining >=80% rate of the esterification reaction, then a second step of the esterification reaction by adding an organic titanium compound and then the polycondensation reaction of the obtained ester.

公开(公告)号：JPH10273584A

公开(公告)日：1998-10-13

申请号：JP8013797

申请日：1997-03-31

Applicant: TORAY INDUSTRIES

Inventor： OOME HIROKAZU ,  ISHII HIROMITSU ,  HIRATSUKA MOTONORI

IPC: C08K7/00 ,  C08K7/14 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To obtain a composition for a partly or wholly cylindrical molding excellent in dimensional stability and surface appearance as well as mechanical properties and heat resistance by selecting a composition prepared by mixing a polyethylene terephthalate resin with glass fibers, an inorganic layered compound and a polyfunctional compound in a specified ratio so that the mean particle diameter of the inorganic layered compound in the composition may fall within a specified range. SOLUTION: This composition is one which comprises 100 pts.wt. polyethylene terephthalate resin, 20-100 pts.wt. glass fibers, 1-10 pts.wt. inorganic layered compound and 0.1-5 pts.wt. polyfunctional compound and in which the mean particle diameter of the inorganic layered compound falls within the range of 0.05-3 μm. The inorganic layered compound is desirably one having hydroxyl groups on the end portions of the layers or one having ion exchange capacity. The polyfunctional compound is exemplified by an epoxysilane, a compound having at least two functional groups such as epoxy groups or isocyanato groups or a carboxylic acid anhydride. This composition can exhibit its effect especially when it is processed by injection molding.

公开(公告)号：JPH10237283A

公开(公告)日：1998-09-08

申请号：JP3954897

申请日：1997-02-24

Applicant: TORAY INDUSTRIES

Inventor： SAKAI HIDETOSHI ,  ISHII HIROMITSU ,  HIRATSUKA MOTONORI

IPC: C08L63/00 ,  C08L67/03 ,  C08L101/00

Abstract: PROBLEM TO BE SOLVED: To improve the mechanical characteristics, hydrolyzability and moldability by blending a polybutylene terephthalate, reinforcing fibers and an epoxy compound so that the reinforcing fibers in the composition have a specified relation between the weight-mean fiber length and the fiber diameter and a specified ratio of the weight-mean fiber length to the number-mean fiber length. SOLUTION: The polybutylene terephthalate (A) is obtained by the polycondensation of the principal constituents comprising terephthalic acid or its ester-forming derivative, and 1,4-butane diol and its ester-forming derivative. The reinforcing fibers (B) comprise those usually used for reinforcing a resin, and having a diameter of 4-25μm. The relation between the weight-mean fiber length(Lw) to the diameter-(d), in terms of the ratio Lw/d, is (50-250):1, and the ratio of the Lw to the number-mean fiber length (Ln), (Lw/Ln), is (1.1 to 3.5):1, preferably (1/1 to 2.0):1. The amount of component B blended is 1-60wt.% based on the total of components A and B. The epoxy compound (C) is blended in an amount of at most 2.5 pts.wt. based on 100 pts.wt. total of components A and B.

公开(公告)号：JPH10138312A

公开(公告)日：1998-05-26

申请号：JP24569797

申请日：1997-09-10

Applicant: TORAY INDUSTRIES

Inventor： NARITA MASAO ,  HIRATSUKA MOTONORI

IPC: B29C45/76 ,  G06F19/00 ,  G06Q50/00 ,  G06Q50/04 ,  G06F17/00

Abstract: PROBLEM TO BE SOLVED: To estimate a change in the degrees of crystallization with the elapse of time at a time of molding by estimating a relative degree of crystallization at an arbitrary point of time in a molding process and estimating the degree of crystallization at the arbitrary point of time on the basis of an arrival degree of crystallization and the relative degree of crystallization at each time. SOLUTION: The input of various data necessary for analysis is performed by an input means 11. A nucleus forming speed and nucleus growing speed analyzing means 12 inputs the output of the input means 11 to calculate a nucleus forming speed and a nucleus growing speed at a time of molding. A relative degree-of- crystallization calculation means 13 inputs the outputs of the input means 11 and the analizing means 12 to substitute the nucleus forming speed and the nucleus growing speed for Avramic formula to estimate the relative degree of crystallization or spherulite size distribution. Further, a degree-of-crystallization calculation means 14 inputs the outputs of the input means 11 and the calculation means 13 and uses an arrival degree of crystallization at each temp. to estimate a change of a degree of crystallization at a time of molding with the elapse of time. The output of the calculation means 14 is stored in a memory means 16 and also displayed on an output means 15 by a figure.

公开(公告)号：JPH10101918A

公开(公告)日：1998-04-21

申请号：JP21032097

申请日：1997-08-05

Applicant: TORAY INDUSTRIES

Inventor： SUGIE RYUICHI ,  NISHIMURA TORU ,  HIRATSUKA MOTONORI

IPC: C08J5/18 ,  C08J5/00 ,  C08L67/02 ,  C08L69/00

Abstract: PROBLEM TO BE SOLVED: To provide a polyester resin composition having heat resistance higher than those of a binary compatible polycarbonate (PC)/1,4-cyclohexanedimethanol(CHDM) derivative copolyester system and a binary incompatible PC/CHDM derivative copolyester system and having good mechanical properties. SOLUTION: This composition comprises a polyester (A) comprising dicarboxylic acid units based on terephthalic acid(TPA) units and glycol units based on ethylene glycol(EG) units (I) and CHDM units (II) and having a (I) to (II) molar ratio of 1 or above, a polyester (B) comprising dicarboxylic acid units based on TPA units (II) and glycol units based on EG units and CHDM units (II) and having a (I) to (II) molar ratio of below 1, and an aromatic PC (C).

公开(公告)号：JPH1060240A

公开(公告)日：1998-03-03

申请号：JP22023296

申请日：1996-08-21

Applicant: TORAY INDUSTRIES

Inventor： ISHII HIROMITSU ,  HIRATSUKA MOTONORI ,  UTAZAKI KENICHI

IPC: C08J5/04 ,  B29C45/00 ,  B29K67/00 ,  C08K3/00 ,  C08K3/08 ,  C08K3/34 ,  C08K3/40 ,  C08K7/04 ,  C08K7/06 ,  C08K7/14 ,  C08L67/00 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To obtain a lightweight reinforced polyester resin composition having good mechanical characteristics, extremely small in the anisotropy of a molded product, and little in warpage, and to obtain the molded product of the polyester resin composition. SOLUTION: This reinforced polyester resin composition comprises (A) 100 pts.wt. of a thermoplastic polyester resin containing polybutylene terephthalate as an essential component, (B) 2-95 pts.wt. of a styrenic resin, if necessary, (C) 1-30 pts.wt. of a polyolefin copolymer, (D) 2-15 pts.wt. of a fibrous inorganic filler having a fiber diameter of 2-50μm, and (E) 2-150 pts.wt. of a plate-like inorganic material having an average particle diameter of 300-3000μm. The component (D) is used in an amount of 0.25-4 times that of the component (E).

公开(公告)号：JPH09262887A

公开(公告)日：1997-10-07

申请号：JP7504796

申请日：1996-03-29

Applicant: TORAY INDUSTRIES

Inventor： NARITA MASAO ,  HIRATSUKA MOTONORI

IPC: B29C33/38 ,  B29C45/76

Abstract: PROBLEM TO BE SOLVED: To estimate a shrinkage factor by a method wherein the PVT curve of resin in accordance with the crystallization behavior in molding and the specific volume of the resin are calculated. SOLUTION: The outputs from an input part 11, in which various data necessary for analysis are fed to a PVC characteristic curve analysing part 12 for calculating the PVC characteristic curve of resin at any crystallinity, a PVC curve calculating part 13 for calculating the PVC curve of resin in accordance with the crystallization behavior at molding and a specific volume calculating part 14 of the resin. The output of the PVC curve calculating part 13 is fed to a storage part A16 and the specific volume calculating part 14. The output of the specific volume calculating part 14 is fed to a storage part, in which the analytical result is stored, and to a shrinkage factor calculating part 15 for calculating the shrinkage factors at molding. The output of the shrinkage factor calculating part 15 is fed to the storage part, in which the analytical result is stored.

公开(公告)号：JPH0853624A

公开(公告)日：1996-02-27

申请号：JP18971994

申请日：1994-08-11

Applicant: TORAY INDUSTRIES

Inventor： YAMANAKA TORU ,  TOGAWA MITSUNARI ,  HIRATSUKA MOTONORI

IPC: C08K3/00 ,  C08L101/00

Abstract: PURPOSE:To provide a resin composition which can give a molding excellent in a balance among heat resistance, rigidity and impact resistance. CONSTITUTION:This composition is one comprising at least three components of 22-89.8wt.% thermoplastic resin (A), 60-10wt.% inorganic filler (B) and 18-0.2wt.% elastic polymer (C) having a glass transition temperature of -20 deg.C or below, wherein at least 30% of the dispersed particles of component C in the composition are present in the form having a common bound a between components B and C.