公开(公告)号：JPH0393829A

公开(公告)日：1991-04-18

申请号：JP23049289

申请日：1989-09-07

Applicant: TORAY INDUSTRIES

Inventor： TABATA KENICHI ,  MIYAMOTO TORU ,  INOUE SHUNEI

IPC: C08G63/60

Abstract: PURPOSE:To obtain the subject polymer having excellent mechanical and thermal properties, moldable by melt-molding and suitable as an engineering plastics etc., by copolymerizing plural structural units at a specific ratio. CONSTITUTION:The objective polymer having a melt viscosity of 30-30,000 poise is produced by polymerizing (A) 4-hydroxy-4'-diphenyl carboxylic acid forming the structural unit of formula I, (B) chlorohydroquinone, etc., forming the structural unit of formula II (X is group of formula III, etc.), (C) terephthalic acid, etc., forming the structural unit of formula IV (n is 1 or 2) and, as necessary, (B) p-hydroxybenzoic acid, hydroquinone, isophthalic acid, etc., forming the structural units of formula V, VI (m is 1 or 2) and VII (Y is group of formula VIII, etc.) e.g. by melt-polymerization method. The ratios of I/V, (I+V)/(I+V +VI+II) and IV/VII in the obtained polymer are 2/8 to 10/0, 2/8 to 9/1 and 2/8 to 10/0, respectively.

公开(公告)号：JPH0359024A

公开(公告)日：1991-03-14

申请号：JP19629589

申请日：1989-07-27

Applicant: TORAY INDUSTRIES

Inventor： YAMANAKA TORU ,  UENO NAGATAKE ,  INOUE SHUNEI

IPC: C09K19/38 ,  C08G63/60 ,  C08G63/66 ,  C08G63/682 ,  C08G63/78

Abstract: PURPOSE:To produce a liquid crystal polyester having a low foreign matter content and improved heat resistance and strengths by constituting it from four specified kinds of structural units. CONSTITUTION:At least one compound selected from among those of formulas I-V (wherein R1 is a group of formula VI or VII or the like group; R2 is a group of formula VI, VIII or the like group; X is H or Cl; and R3 is H or a 1-3C acyl) is subjected to acylation and polycondensation to obtain a liquid crystal polyester comprising structural units of formula IX, structural units of formula X and/or XI and structural units of formula XII, wherein the sum of the structural units of formulas X and XI is substantially equimolar to the structural units of formula II, and having an intrinsic viscosity (in pentafluorophenol in a 0.1g/dl concentration) of 0.5-10dl/g and a melt viscosity of 10-10000 P as measured at the liquid crystal initiation temperature plus 40 deg.C and a shear rate of 1000 (1/sec) with a Koka-type flow tester.

公开(公告)号：JPH0328224A

公开(公告)日：1991-02-06

申请号：JP13457589

申请日：1989-05-30

Applicant: TORAY INDUSTRIES

Inventor： TABATA KENICHI ,  GOTO NORIAKI ,  INOUE SHUNEI

IPC: C08G63/682 ,  C08G63/18 ,  C08G63/19 ,  C08G63/60 ,  C08G63/672

Abstract: PURPOSE:To prepare a highly rigid polyester which is melt moldable, excellent in the mechanical and thermal characteristics, and useful as an engineering plastic by producing the polyester which comprises specific structural units and has a specified logarithmic viscosity. CONSTITUTION:A highly rigid polyester comprising 10-100mol% structural units of formula I and 90-0mol% the sum of structural units of formula II (wherein X is a group of formula III-X; Y is a group of formula VI-XIV) and formula XV (wherein Z is a group of formula IV, V, X, or XIII) and having a logarithmic viscosity of 0.5-20dl/g, in a concn. of 0.1g/dl in pentafluorophenol at 60 deg.C is produced.

公开(公告)号：JPH032261A

公开(公告)日：1991-01-08

申请号：JP13622489

申请日：1989-05-31

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  ICHIKAWA YASUNORI ,  INOUE SHUNEI

IPC: C08K5/29 ,  C08G59/00 ,  C08K5/15 ,  C08K5/1515 ,  C08L63/00 ,  C08L67/00 ,  C08L67/02

Abstract: PURPOSE:To provide a liquid crystal polyester resin composition having excellent hydrolysis resistance and heat cycle resistance by adding an organic epoxy compound and a carbodiimide compound to a liquid crystal polyester comprising specific structural units. CONSTITUTION:A liquid crystal polyester resin composition comprises (A) 100 pts.wt. of an anisotropic melt phase-forming liquid crystal polyester having a thermal deformation temperature of >=150 deg.C and comprising structural units of formulas I, II and III [R1 is a group of formula IV, V, VI, etc.; R2, R3 are a group of formula IV, V, VII (X is H or Cl), etc.], the sum of the groups of formulas I and II being 75-95mol%, the amount of the group of formula III being 25-5mol% based on the total amount of the composition and the molar ratio of the group of formula I to the group of formula II being 75/25-95/5, (B) 0.005-10 pts.wt. of an organic epoxy compound, preferably a compound of formula VIII (Ar is 6-20C aromatic group or alicyclic group; n is 0-20), (C) 0.005-10 pts.wt. of a carbodiimide compound and preferably further (D) 0-200 pts.wt. of a filler.

公开(公告)号：JPS63280732A

公开(公告)日：1988-11-17

申请号：JP11747787

申请日：1987-05-14

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  INOUE SHUNEI ,  KATAOKA SHIRO

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

Abstract: PURPOSE:To obtain the titled melt-moldable polyester having excellent fluidity, heat-resistance and mechanical properties and suitable as electronic and electrical apparatus parts, etc., by copolymerizing plural kinds of aromatic dihydroxy compounds at a specific ratio. CONSTITUTION:The objective polyester having a logarithmic viscosity of 1.0-20.0dl/g can be produced by (1) mixing (A) p-hydroxybenzoic acid forming the structural unit of formula I, (B) terephthalic acid and/or isophthalic acid forming a part of the structural unit of formula II, (C) 4,4'-dihydroxybiphenyl forming the remaining part of the structural unit of formula II, (D) t- butylhydroquinone forming a part of the structural unit of formula III and, if necessary, (E) hydroquinone, etc., forming a part of the structural unit of formula IV (X is group of formula V, etc.) and (2) subjecting the mixture e.g. to deacetylation polycondensation reaction. The amount of the unit of formula I in the mixture is 30-90mol.% and the molar ratios of II/III and IV/(II+III+ IV) are 5/95-20/80 and 0-40mol.%, respectively.

公开(公告)号：JPS63280731A

公开(公告)日：1988-11-17

申请号：JP11747687

申请日：1987-05-14

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI

IPC: C08G63/60

Abstract: PURPOSE:To obtain the titled melt-moldable polyester having excellent fluidity, heat-resistance and mechanical properties and suitable as engineering plastics, etc., by copolymerizing a disubstituted hydroquinone to an aromatic polyester at a specific ratio. CONSTITUTION:The objective polyester having a logarithmic viscosity of 0.1-20.0dl/g can be produced by (1) mixing (A) p-hydroxybenzoic acid forming the constituent unit of formula I, (B) (i) terephthalic acid and/or isophthalic acid and (ii) an aromatic dihydroxy compound such as 4,4'-dihydroxybiphenyl forming the constituent unit of formula II (X is group of formula III, etc.) and (C) a disubstituted hydroquinone [e.g. 2,5-di(t-butyl)hydroquinone] forming the constituent unit of formula IV (Y is group of formula V, etc.) and (2) subjecting the mixture e.g. to deacetylation polycondensation reaction. The ratio of the unit of formula I and that of formula II+III in the mixture are 40-90mol.% and 60-10mol.%, respectively, and the molar ratio of the unit of formula II/ formula III is 9/1-1/9.

公开(公告)号：JPS63120729A

公开(公告)日：1988-05-25

申请号：JP26570486

申请日：1986-11-10

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI ,  OKUMURA ATSUSHI ,  OKAMOTO MASARU

IPC: C09K19/38 ,  C08G63/60 ,  C08G69/44

Abstract: PURPOSE:To form an aromatic polymer excellent in flow, heat resistance and impact resistance, by combining three specified kinds of structural units. CONSTITUTION:This aromatic polymer consists of structural units I-III represented by formulas I-III, wherein structural units I amount to 40-90mol% based on the total, structural units (II+III) amount to 60-10mol% based on the total and the ratio of structural units (III) to structural units (II+III) is 1-40mol%. In the formulas I-III, X is at least two groups selected from the groups of the formula IV, V and VI, Y is at least one group selected from among -OXO- and groups of formulas VII and VIII and Z is a group of formula IX or X, provided that a combination in which Y is -OXO- and Z is a group of formula IX is excluded.

公开(公告)号：JPS63112620A

公开(公告)日：1988-05-17

申请号：JP25578486

申请日：1986-10-29

Applicant: TORAY INDUSTRIES

Inventor： INOUE SHUNEI ,  OKAMOTO MASARU ,  KATAOKA SHIRO

IPC: C08G63/60 ,  C08G63/682

Abstract: PURPOSE:To obtain the title polyester which can give a molding excellent in flow, heat resistance, optical anisotropy and mechanical properties, comprising four specified kinds of structural units. CONSTITUTION:An acylation product (A) of a hydroxycarboxylic acid such as p-hydroxybenzoic acid, an acylation product (B) of an aromatic dihydroxy compound, such as t-butylhydroquinone diacetate or 2,6-diacetoxynaphthalene, and an aromatic dicarboxylic acid (C) such as terephthalic acid are subjected to polycondensation through elimination of acetic acid to obtain the title polyester comprising 40-90mol% structural units of formula I and 60-10mol% structural units of formulas II-IV (wherein X is a group of any one of formulas V-IX or the like, Y is a group of formula V, VII or IX, provided that a combination in which X is a group of formulas VI and/or VII and Y is a group of formula V is excluded) and having a molar ratio (units of formula II/units of formula III) of 8-2/2-8 and a ratio (units of formula IV/units of formulas II-IV) of 0-40mol%. This polyester is melt-molded at a temperature

公开(公告)号：JPS6333418A

公开(公告)日：1988-02-13

申请号：JP17574286

申请日：1986-07-28

Applicant: TORAY INDUSTRIES

Inventor： OKAMOTO MASARU ,  INOUE SHUNEI ,  KATAOKA SHIRO

IPC: C08G63/60 ,  C09K19/38

Abstract: PURPOSE:To provide the titled novel aromatic polyester having a specific structure and composition composed of a condensation product of an aromatic oxycarboxylic acid, an aromatic dicarboxylic acid and a bisphenol compound, moldable by meltmolding and having excellent fluidity, heat-resistance and mechanical properties. CONSTITUTION:The objective polyester composed of the units of formula I-IV [X is (substituted) phenylene, biphenylene, naphthylene, etc.; Y is phenylene, biphenylene, naphthylene, etc.] and having a longarithmic viscosity of 0.5-15dl/g measured in pentafluorophenol (0.1g/dl concentration at 60 deg.C) can be produced by deacetylation polymerization of p-acetoxybenzoic acid, a substituted hydroquinone, diacetate of bisphenol compound, etc., and terephthalic acid, etc., in nitrogen gas atmosphere. The ratio of the structural unit of formula I in the above polymer is 40-90mol% and that of the structural units of formula II-IV is 60.10mol%. The molar ratio of the unit of formula II/III is 8/2-2/8 and that of IV/(II-IV) is 1-40mol%.

公开(公告)号：JPS62236870A

公开(公告)日：1987-10-16

申请号：JP8046786

申请日：1986-04-08

Applicant: TORAY INDUSTRIES

Inventor： YONETANI KIICHI ,  HORIUCHI KENJIRO ,  INOUE SHUNEI

IPC: C08L67/02 ,  C08L67/00 ,  C09D5/03

Abstract: PURPOSE:To provide the compsn. having excellent adhesion and resistance to low-temperature impact and heat cycles, consisting of a specified copolyester and a polybutylene terephthalate copolymer. CONSTITUTION:15-45% (by mol; the same applies hereinbelow) terephthalic acid, 35-5% arom. and/or alicyclic dicarboxylic acid other than terephthalic acid and 0-25% 8-40C aliph. dicarboxylic acid are reacted with 15-50% 1,4-butanediol and 35-0% at lest one diol selected from the group consisting of ethylene glycol, 1,6-hexanediol and neopentyl glycol to obtain a copolyester (A) having a relative viscosity of 1.1-2.0 (in 0-chlorophenol soln. of 0.5wt. copolyester at 25 deg.C). 100pts.wt. component A is blended with 3-100pts.wt. polybutylene terephthalate copolymer (B) having a relative viscosity of 1.2-2.0 (in 0-chlorophenol soln. of 0.5wt% copolymer at 25 deg.C) and a dicarboxylic acid unit composed of 10-40% 6-40C aliph. dicarboxylic acid unit and 40-10% terephthalic acid unit.