公开(公告)号：JPH03250022A

公开(公告)日：1991-11-07

申请号：JP33973190

申请日：1990-11-30

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA YASUNORI ,  INOUE SHUNEI

IPC: C08G63/60 ,  C08G63/78

Abstract: PURPOSE:To obtain a copolyester which can give a molding excellent in heat resistance and mechanical properties simply by melt polymerization by using 4,4'-dihydroxybiphenyl having an Na content of a specified small value as the 4,4'-dihydroxybiphenyl which forms a specified structural unit among the contained four kinds of structural units. CONSTITUTION:A process for producing a copolyester comprising structural units of formulas I, II, III and IV, wherein the 4,4'-dihydroxybiphenyl which forms the structural units of formula II has an Na content of 0.1-10ppm. Thus, a copolyester which can give a high polymer simply by melt polymerization and can give a molding excellent in heat resistance, mechanical properties and color tone can be obtained. In the above formulas, R1 is a group of formula V, VI, VII or VIII or the like; R2 is a group of formula V, IX, X or XI or the like; and X is H or Cl.

公开(公告)号：JPH03243620A

公开(公告)日：1991-10-30

申请号：JP4027890

申请日：1990-02-20

Applicant: TORAY INDUSTRIES

Inventor： YAMANAKA TORU ,  INOUE SHUNEI

IPC: C09K19/38 ,  C08G63/60 ,  C08G63/672 ,  C08G63/682

Abstract: PURPOSE:To obtain the subject polyester excellent in the balance between heat resistance and mechanical properties and suitable for a metal-substitute plastics, etc., by copolymerizing plural constituting units in a specified ratio. CONSTITUTION:(A) One or more compounds selected from (i) a compound for a building block of formula V (Ar1 is aromatic), (ii) a compound for a building block of formula VI (Ar2 is aromatic) and (iii) a compound for building block of formula VII (Ar3 is naphthalene) are copolymerized with (B) p-hydroxybenzoic acid for a building block of formula I, (C) hydroquinone, etc., for a building block of formula II (R1 is aromatic), (D) ethylene glycol for a building block of formula III and (E) terephthalic acid, etc., for a building block of formula IV (R2 is aromatic) to obtain the objective polyester containing the components (A) and (D) in an amount of 0.1-10mol% and 5-40mol% respectively based on the components (A)+(B)+(C)+(D) and having 0.5-5.0dl/g logarithmic viscosity.

公开(公告)号：JPH03231958A

公开(公告)日：1991-10-15

申请号：JP2643090

申请日：1990-02-06

Applicant: TORAY INDUSTRIES

Inventor： UENO NAGATAKE ,  YAMANAKA TORU ,  INOUE SHUNEI

IPC: C08K5/49 ,  C08K5/03 ,  C08L67/00 ,  H04R7/02

Abstract: PURPOSE:To provide a resin loudspeaker diaphragm having excellent heat resistance, flame retardance and acoustic characteristics by employing as an essential component a composition comprising a melt-moldable liquid crystalline polyester having specific structural units and a specified amount of an organic flame retardant. CONSTITUTION:A resin loudspeaker diaphragm make of a composition as an essential component, the composition comprising (A) 100 pts.wt. of a melt- moldable liquid crystalline polyester having structural units of formulas I-IV (R1 is a group of formula V, VI or VIII etc.; R2 is a group of formula V, VI or VIII, etc.; X is H or Cl), the total amount of the groups of formulas I and II being 77-95mol%, preferably 82-93mol%, and the group of formula III being 23-5mol%, preferably 18-7mol%, based on the total amount of the groups of formulas I, II and III, respectively, and the molar ratio of the groups of formula II/formula III being 75/25-95/5, preferably 78/22-93/7, and (B) 0.5-30 pts.wt., preferably 1-20 pts.wt., of an organic frame-retardant, e.g. an organic bromo compound and/or an organic phosphorus compound.

公开(公告)号：JPH03217450A

公开(公告)日：1991-09-25

申请号：JP1456890

申请日：1990-01-23

Applicant: TORAY INDUSTRIES

Inventor： ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  OKAMOTO MASARU

IPC: C08K7/14 ,  C08L67/00 ,  C08L67/03

Abstract: PURPOSE:To obtain the subject resin composition excellent in heat resistance, moldability and mechanical characteristics, especially high-temperature mechanical characteristics and having a low anisotropy by blending a specified amount of a glass fiber having a specified fiber diameter with a liquid crystalline polyester resin composed of specified structural units. CONSTITUTION:With (A) 100 pts. wt. melt-moldable liquid crystalline polyester resin composed of structural units represented by formulae I-IV [R1 is formulae V, VI, etc.; R2 is formulae V, VI, VII, etc.; X is H or Cl] and satisfying relations such that the structural unit I occupies 40-90mol% based on the total amount of structural units of the formulae I-III and that the molar ratio of (structural unit II/III) is (9/1)-(1/9), (B) 5-200 pts.wt., preferably 10-100 pts.wt. glass fiber having 3-9mum average fiber diameter and 30-10 mum fiber length is blended.

公开(公告)号：JPH03188133A

公开(公告)日：1991-08-16

申请号：JP32777289

申请日：1989-12-18

Applicant: TORAY INDUSTRIES

Inventor： YAMANAKA TORU ,  INOUE SHUNEI ,  AMIJIMA KENJI

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

Abstract: PURPOSE:To prepare a polyester film with a reduced thermal shrinkage and improved mechanical strengths, dimensional stability, transparency, and uniformity by forming a compsn. comprising a specific thermotropic liq. crystalline polyester and a semiarom. polyester into a film. CONSTITUTION:0.1-30wt.% thermotropic liq. crystalline polyester having an m.p. lower than 250 deg.C and a logarithmic viscosity (in pentafluorophenol, 0.1g/dl concn., at 60 deg.C) of 0.2-2.0dl/g is compounded with 99.9-70wt.% semiarom. polyester of formula IX (wherein R3 is R2; and n is 2, 4, or 6). The resulting compsn. is formed into a film in such a way that the liq. crystalline polyester disperses as particles with a mean diameter of 5mum or lower in the semiarom. polyester, giving title film. The liq. crystalline polyester contains structural units of formulas I, II, and III (wherein R1 is a structural unit of formula IV, V, or VI; and R2 is a structural unit of formula IV, VI, or VII) and, if necessary, a unit of formula VIII, in a molar ratio of (formula VIII + formula II) to formula III of practically 1/1; that of formula II to (formula I + formula III + formula VIII) of 50/100-70/100; and that of formula I to formula VIII of 100/0-50/50.

公开(公告)号：JPH03179051A

公开(公告)日：1991-08-05

申请号：JP12785490

申请日：1990-05-16

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  YAMANAKA TORU

IPC: C08K3/22 ,  C08K5/02 ,  C08K5/15 ,  C08K5/1515 ,  C08L23/26 ,  C08L59/00 ,  C08L67/00 ,  C08L69/00 ,  C08L71/12 ,  C08L77/00 ,  C08L81/00 ,  C08L81/02 ,  C08L81/06

Abstract: PURPOSE:To improve the heat resistance, flame retardance, appearance after molding, and electrical properties by compounding a specific resin compsn. with an org. bromine compd., an antimony compd., an epoxy compd., and a filler. CONSTITUTION:A resin compsn. is obtd. by compounding 1-10wt.% thermotropic liq. crystal polyester having a deflection temp. under load of 150-280 deg.C and comprising at least one unit selected from the group consisting of units of formulas I, II, and III, and IV or V, [wherein X is formula VI to X; carbonyl groups in formula V are attached to p- or m-position to each other and 60% or higher are at p-position; and the molar amt. of the unit of formula V is substantially equal to that of the sum of the units of formulas II, III, and IV] with 99-90wt.% thermoplastic resin selected from the group consisting of a polyamide, polyoxymethylene, polycarbonate, etc. Then, 100 pts.wt. resulting compsn. is compounded with 0.5-50 pts.wt. org. bromine compd., 0-30 pts.wt. antimony compd., 0.01-20 pts.wt. epoxy compd., and 0-200 pts.wt. filler to give the title compsn.

公开(公告)号：JPH03176123A

公开(公告)日：1991-07-31

申请号：JP31724789

申请日：1989-12-06

Applicant: TORAY INDUSTRIES

Inventor： TOYODA KATSUYA ,  ABE KOICHI ,  INOUE SHUNEI

IPC: B32B27/26 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C08J5/18 ,  C08L67/02

Abstract: PURPOSE:To improve drastically gas barrier properties in case of metallizing of a metal such as aluminum, by a method wherein the title film is of a biaxially oriented film of thermotropic crystalline polyester having a mold ratio of a specific structural unit and mean surface roughness of a widthwise direction and a ratio between the Young's moduli of a longitudinal direction and widthwise direction of at least one surface are specified. CONSTITUTION:The title film is of a biaxially oriented film of thermotropic crystalline polyester where a structural unit is constituted of formulas (I) to (IV), a structural unit [(I)+(II)] is 55-95 mol% of [(I)+(II)+(III)], a structural unit (III) is 45-5 mol% of the [(I)+(II)+(III)] and a mol ratio of the structural unit (I)/(III) is 75/25-95/5. Mean surface roughness Ra of a widthwise direction is 3-50 nm and ratio between the Young's moduli of lengthwise direction and widthwise direction is 10:1-1:3 on at least one surface. The structural unit (I) is a structural unit formed of p-hydroxy benzoic acid, the structural unit (II) is a structural unit formed of 4, 4'-dihydroxy biphenyl and the structural unit (III) is a structural unit formed of ethylene glycol. Then the structural unit (IV) is a structural unit of polyester formed of aromatic dicarboxylic acid selected out of terephthalic acid and isophthalic acid.

公开(公告)号：JPH03137154A

公开(公告)日：1991-06-11

申请号：JP27422989

申请日：1989-10-20

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI ,  OKAMOTO MASARU ,  YAMANAKA TORU

IPC: C08K3/00 ,  C08G63/60 ,  C08K5/49 ,  C08L67/00

Abstract: PURPOSE:To obtain the subject composition capable of forming a thin-walled molded article having excellent flame-retardancy and good heat-resistance, mechanical properties and appearance by compounding an organic phosphorus compound to a specific liquid crystal polyester. CONSTITUTION:The objective composition can be produced by compounding (A) 100 pts. wt. of a liquid crystal polyester composed of the structural units of formula I to formula IV [R1 is group of formula V to formula VIII, etc.; R2 is group of formula V to formula VII or formula IX (X is H or C1)] wherein the ratio of the structural units [I+II] to the units [I+II+III] is 77-95 mol%, the ratio of the unit III to the units [I+II+III] is 23-5 mol%, the molar ratio (I/II) is 75/25 to 95/5 and the amount of the structural unit IV is essentially equimolar to the units [II+III] with (B) 0.2-30 pts. wt. (preferably 0.5-15 pts. wt.) of an organic phosphorus compound and (C)

公开(公告)号：JPH0395255A

公开(公告)日：1991-04-19

申请号：JP23261489

申请日：1989-09-07

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI ,  YAMANAKA TORU

IPC: C08K3/00 ,  C08K3/22 ,  C08K5/02 ,  C08L59/00 ,  C08L67/00 ,  C08L69/00 ,  C08L71/08 ,  C08L71/10 ,  C08L77/00 ,  C08L81/00 ,  C08L81/02 ,  C08L81/06

Abstract: PURPOSE:To obtain a flame-retardant resin composition excellent in mechanical properties, appearance of the molded product and heat resistance by mixing a composition comprising a specific thermotropic liquid crystal polyester and a thermoplastic resin with a filler, an organoboron compound and an antimony compound. CONSTITUTION:The title flame-retardant resin composition is obtained by mixing 100 pts.wt. composition, which comprises 1-99wt.% thermotropic liquid crystal polyester having structural units of formulae I, II and V and a structural unit selected from the group consisting of formulae III and IV (wherein X is 1,4- phenylene, t-butyl-1,4-phenylene, biphenylene or 2,6-naphthylene; CO groups of formula V are in the p- and m-positions relative to each other and the p- position amount to 65% or more) with the amount of structural unit V being equal to the amount of II+III+IV by mole and has a deflection temperature under load of 150-280 deg.C and 99-1wt.% thermoplastic resin such as polyamides, polyoxymethylenes, polycarbonates, polyallylene sulfides, polysulfones, polyethers, or ether ketones, with 0-200 pts. filler, 5-50 pts. organoboron compound, and 0-30 pts. antimony compound.

公开(公告)号：JPH0354222A

公开(公告)日：1991-03-08

申请号：JP19192589

申请日：1989-07-24

Applicant: TORAY INDUSTRIES

Inventor： YAMANAKA TORU ,  INOUE SHUNEI ,  TSUNASHIMA KENJI

IPC: C08G63/688 ,  C08G63/60 ,  C08G63/66 ,  C08J5/00 ,  C08L67/00

Abstract: PURPOSE:To improve the dyeability and affinity with other thermoplastic polymers without adversely affecting the balance among heat resistance, moldability, and mechanical properties by copolymerizing a specific monomer having an -SO3M group (M is an alkali metal). CONSTITUTION:A diacylated product of an arom. dihydroxyl compd., a monomer having an -SO3M group of formula I (M is an alkali metal) such as monosodium salt of 5-sulfoisophthalic acid, and an arom. dicarboxylic acid are polycondensed by removing acetic acid to give a modified, optically anisotropic polyester which comprises structural units selected from the group consisting of structural units of formulas II to VI (wherein R1 is formula VIII or IX; R2 is formula VII or VIII; X is H or Cl), wherein the ratio of formula II to (formulas II+III+ IV) is 20-90mol%; the ratio of formula VI to (formulas V+VI) is 1-100mol%; and (formula V+VI) and (formula III+IV) are subtantially equimolar to each other.