公开(公告)号：JPH024850A

公开(公告)日：1990-01-09

申请号：JP15579988

申请日：1988-06-23

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  HATSU TOSHIHIRO ,  YAMAMOTO YOSHIYUKI

IPC: C08K13/02 ,  C08G2/00 ,  C08G2/28 ,  C08K3/22 ,  C08K5/13 ,  C08L59/00

Abstract: PURPOSE:To obtain a polyoxymethylene resin composition excellent in thermal stability resistance and mechanical properties by blending a polyoxymethylene with a hindered phenol having a specific molecular weight, specified metallic hydroxide and phenolic resin. CONSTITUTION:A resin composition obtained by blending (A) 100 pts.wt. polyoxymethylene, preferably prepared by copolymerizing formaldehyde and/or trioxane and other cyclic ethers in the presence of preferably a Lewis acid catalyst and adding a hindered amine compound expressed by the formula (R is H or 1-30C monofunctional organic group; R to R are 1-5C alkyl; n is >=1; R is n-valent organic group) to stop the polymerization with (B) 0.001-5 pts.wt. hindered phenol having >=300 molecular weight, (C) 0.001-5 pts.wt. at least one of magnesium hydroxide, calcium hydroxide, strontium hydroxide and barium hydroxide and (D) 0.001-5 pts.wt. phenoxy resin.

公开(公告)号：JPS6363741A

公开(公告)日：1988-03-22

申请号：JP20781086

申请日：1986-09-05

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  YAMAMOTO YOSHIYUKI

IPC: C08L59/04 ,  C08K3/12 ,  C08K5/13 ,  C08K5/16 ,  C08L59/00

Abstract: PURPOSE:To obtain the title composition excellent in heat stability, by mixing a specified polymer with an additive, a hindered phenolic antioxidant and a formaldehyde absorbent. CONSTITUTION:Trioxane and 0.1-10mol% cyclic ether (e.g., ethylene oxide) are bulk-polymerized together at 60-115 deg.C in the presence of at least one polymerization catalyst selected from among BF3 (hydrate) and coordination compounds of BF3 with O- or S-containing organic compounds (e.g., BF3 diethyl etherate), and the catalyst is deactivated by the addition of a hindered amine to obtain a polymer (A). Component A is mixed with 0.001-5wt% at least one additive (B) selected from among the hydroxides, inorganic oxides, organic acid salts and alkoxides of alkali (alkaline earth) metals, 0.001-5wt% hindered phenolic antioxidant (C) [e.g., 2,2-methylene-bis(4-methyl-6-tert-butylphenol)] and 0.001-5wt% reagent (C) which absorbs formaldehyde by reacting with it (e.g., guanamine).

公开(公告)号：JPS6312617A

公开(公告)日：1988-01-20

申请号：JP15398686

申请日：1986-07-02

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  YAMAMOTO YOSHIYUKI

IPC: C08G2/24 ,  C08G2/18 ,  C08G65/08 ,  C08G65/30

Abstract: PURPOSE:To obtain the titled copolymer having improved heat resistance, by subjecting a blend of trioxan and a cyclic ether to bulk polymerization by the use of a BF3 type catalyst, deactivating the catalyst with a specific compound and further specifically treating the formed polymer. CONSTITUTION:First, a blend of trioxan and a cycle ether is subjected to bulk polymerization in the presence of a polymerization catalyst selected from BF3 (hydrate) and a coordination compound of BF3 and an organic compound containing oxygen atom and sulfur atom. Then, after the polymerization reaction is over, a hindered amine compound shown by the formula (R is H or 1-30C monofunctional organic group; R -R are 1-5C alkyl; n is >=1 integer; R is n functional organic group) is added to the polymerization system to deactivate the catalyst. Further, a compound selected from an alkaline (earth) metal hydroxide, inorganic weak acid salt, etc., and a heat-resistant stabilizer are added to the polymer, which is heated at 100-260 deg.C to eliminate the unstable end of the formed polymer. Then, a formaldehyde absorbent is added to the polymer, which is kneaded under heating to give the aimed polymer containing an oxymethylene unit and an oxyalkylene unit.

公开(公告)号：JPS62148524A

公开(公告)日：1987-07-02

申请号：JP28781585

申请日：1985-12-23

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  YAMAMOTO YOSHIYUKI

IPC: C08G65/40

Abstract: PURPOSE:To obtain the titled polyether, containing little gelatinous material and having improved heat, chemical and hydrolytic resistance, by polycondensing a specific dihydric phenol with specific dihalobenzenoid compound in the presence of potassium carbonate and sodium sulfate in a polar solvent. CONSTITUTION:One or more dihydric phenols, preferably hydroquinone are polycondensed with one or more dihalobenzenoid compound having an electron attractive group at least one position of the o- or p-positions to the halogen atom, preferably 4,4'-difluorobenzophenone, etc., preferably at 1:1 molar ratio in the presence of potassium carbonate, preferably at 1.00-1.10 molar ratio of the potassium carbonate to the monomer and sodium sulfate, preferably in an amount of 1.0-300g based on 1mol monomer in a polar solvent, e.g. dimethyl sulfoxide, etc., to afford the aimed polyether.

公开(公告)号：JPS62148523A

公开(公告)日：1987-07-02

申请号：JP28781485

申请日：1985-12-23

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  YAMAMOTO YOSHIYUKI

IPC: C08G65/40

Abstract: PURPOSE:To obtain the titled polymer having improved heat, chemical and hydrolytic resistance, by reacting a monomer mixture of a specific dihalogenobenzophenone derivative with a dihydroxydiphenyl derivative in the presence of sodium carbonate in a polar solvent. CONSTITUTION:A monomer mixture consisting of at least one dihalogenobenzophenone derivative expressed by formula I (X and X' are halogen; W and W' are H, 1-5C alkyl or phenyl) and at least one dihydroxydiphenyl derivative expressed by formula II (Y, Y', Z and Z' are H, 1-5C alkyl, 1-4C alkoxy, phenyl or halogen) in equimolar amounts is reacted in the presence of 1.00-1.20mol, based on 1mol monomer mixture, sodium carbonate in a polar solvent to afford the aimed polymer consisting of repeating units expressed by the formula III.

公开(公告)号：JP2003138054A

公开(公告)日：2003-05-14

申请号：JP2001339013

申请日：2001-11-05

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU

IPC: C08J9/12 ,  B29C45/00 ,  B29K67/00 ,  B29K105/04

Abstract: PROBLEM TO BE SOLVED: To provide a foam-molded product formed from a liquid crystalline polyester resin that has a fine and uniform foamed state without impairing the characteristics inherently possessed by a liquid crystalline polyester resin. SOLUTION: The foam-molded product formed from a liquid crystalline polyester resin is produced by introducing a liquid crystalline polyester resin having a specific structure and a supercritical fluid into an injection molding machine and injection-molding the same.

公开(公告)号：JP2003119311A

公开(公告)日：2003-04-23

申请号：JP2001310838

申请日：2001-10-09

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU

IPC: C08J9/12 ,  B29C45/00 ,  B29K59/00 ,  B29K105/04 ,  C08K3/00 ,  C08K5/098 ,  C08K5/10 ,  C08K5/20 ,  C08K7/04 ,  C08L59/04

Abstract: PROBLEM TO BE SOLVED: To provide a polyoxymethylene resin expansion molded product having fine and uniform foamed condition without impairing the properties inherent in the polyoxymethylene resin. SOLUTION: This polyoxymethylene resin expansion molded product is obtained by introducing a polyoxymethylene resin and a supercritical fluid into an injection molding machine to carry out injection molding, wherein the melt index of the polyoxymethylene resin is 2-30.

公开(公告)号：JP2002290094A

公开(公告)日：2002-10-04

申请号：JP2001089814

申请日：2001-03-27

Applicant: TORAY INDUSTRIES

Inventor： SAKAI HIDETOSHI ,  TANAHASHI TAKASHI ,  OKITA SHIGERU

IPC: C08J5/00 ,  C08K7/00 ,  C08K7/06 ,  C08L101/00 ,  H05K9/00

Abstract: PROBLEM TO BE SOLVED: To provide an electromagnetic wave shielding material exhibiting excellent electromagnetic wave shielding performance for protecting an apparatus against trouble due to electromagnetic wave especially in the high frequency region, and its molding. SOLUTION: The electromagnetic wave shielding material is composed of a thermoplastic resin material containing specified quantity of carbon nanotube and conductive fibers. Its molding is also provided.

公开(公告)号：JP2002105329A

公开(公告)日：2002-04-10

申请号：JP2000301074

申请日：2000-09-29

Applicant: TORAY INDUSTRIES

Inventor： OKITA SHIGERU ,  SUZUKI ATSUSHI

IPC: C08J5/00 ,  C08K7/00 ,  C08L101/00 ,  H01M8/02

Abstract: PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition which has excellent electroconductivity, gas barrier property, strength, corrosion resistance, and moldability and is suitable for fuel cell separators. SOLUTION: This thermoplastic resin composition containing milled pitch- based carbon fibers in an amount of 5 to 80 wt.%, wherein the thermoplastic resin comprises one or more resins selected from polyacetal, amorphous polyesters, polyphenylene oxide, polycarbonate, polyphenylene sulfide, liquid crystal polyesters, polysulfones, polyether sulfones, and polyether imides.

公开(公告)号：JP2001316587A

公开(公告)日：2001-11-16

申请号：JP2001187385

申请日：2001-06-20

Applicant: TORAY INDUSTRIES

Inventor： SAKAI HIDETOSHI ,  OKITA SHIGERU

IPC: C08J5/00 ,  B29C45/00 ,  B29K23/00 ,  B29K81/00 ,  B29K105/16 ,  B29L22/00 ,  C08K3/00 ,  C08K3/40 ,  C08K7/02 ,  C08L81/02

Abstract: PROBLEM TO BE SOLVED: To obtain a material for boxes that has excellent fluidity in the injection molding for producing thin-wall moldings and shows excellent dimensional accuracy, surface appearance and falling impact strength since the resultant molded products have good surface appearance, low warping properties and high stiffness and strength even in the boxes of thin walls. SOLUTION: The objective material for boxes comprises (A) 100 pts.wt. of a polyphenylene sulfide resin, (B) 20-300 pts.wt. of inorganic fillers, and (C) 2.5-40 pts.wt. of an olefin resin.