公开(公告)号：JPS5670021A

公开(公告)日：1981-06-11

申请号：JP14695079

申请日：1979-11-13

Applicant: TORAY INDUSTRIES

Inventor： FUKUDA TADANORI ,  MORIMOTO HIROSHI

IPC: C08G18/00 ,  C08G18/73 ,  C09D175/00

Abstract: PURPOSE:To prepare a low-toxic polyurethane resin giving a coating film having excellent appearance, acid resistance and water resistance, and suitable for coating use, by reacting a polyol with a novel 3-functional yellowing-resistant isocyanate. CONSTITUTION:The objective polyurethane resin is prepared by reacting (A) a polyol (e.g. polyester polyol, polymeric polyol, etc.) with (B) a triisocyanate-type 1,8-diisocyanate-4-isocyanatemethyl octane of formula (a novel compound). The molar ratio of (NCO)/(OH) of the product is pref. 0.5-1.2 for coating, 0.5-1.0 for electrical insulation, encapsulation analysis, casting, etc., and 0.1-0.7 for high- performance adhesive and curing agent.

公开(公告)号：JPS5590526A

公开(公告)日：1980-07-09

申请号：JP16180478

申请日：1978-12-29

Applicant: TORAY INDUSTRIES

Inventor： FUKUDA TADANORI ,  SAKAMOTO SADAYUKI ,  NISHINO MASAKI ,  YASUHARA YUTAKA

IPC: C08G18/00 ,  C07C265/04 ,  C08G18/73 ,  C09D175/00

Abstract: PURPOSE:To provide polyurethane resin useful for a paint composition not containing volatile monomer with high toxity and having no stimulating odor by reacting polyol and 1,6,11-undecane triisocyanate. CONSTITUTION:Polyol and 1,6,11-undecane triisocyanate represented by a formula. The above-described 1,6,11-undecane triisocyanete is a novel compound having good symmetric structure, having b,p, of 166-167 deg.C/0.2mmHg, being colorless and odorless liquid substance with good flowability in the vicinity of a room temperature, having low vapor pressure at about room temperature, having no stimulating odor to human body, being handled safely as well as containing isocyanate in a high concentration of above 45%. As polyol to be used, diol, polyol, polyetherpolyol, polyesterpolyol, polymerpolyol are included.

公开(公告)号：JPH0926421A

公开(公告)日：1997-01-28

申请号：JP17634495

申请日：1995-07-12

Applicant: TORAY INDUSTRIES

Inventor： AOYAGI MUTSUO ,  FUKUDA TADANORI ,  ITO HIDEO

IPC: G01N31/00 ,  G01N31/22 ,  G01N33/38

Abstract: PROBLEM TO BE SOLVED: To make it possible to simply measure the generation of efflorescence in a short time by using alcohol containing water solution of pH indicator exhibiting alkalinity. SOLUTION: The lower 1/2 part of a cement product in thickness direction is dipped, for example, in water to absorb water. The absorbed water is gradually moved to a surface layer which is not dipped in water. At this time, the alkali component in the product is moved to the surface layer with the absorbed water. When it is coated with a pH indicator having a color change area to the alkaline side to the alkali component such as pH indicator of thymol blue or phenol red, the color is exhibited in the color change area in response to the pH. The generation of efflorescence is predicted according to the degree of the coloring. Accordingly, the time up to a predetermined coloring area is measured to predict the easiness of generating the efflorescence in a short time.

公开(公告)号：JPH07187858A

公开(公告)日：1995-07-25

申请号：JP33677693

申请日：1993-12-28

Applicant: TORAY INDUSTRIES

Inventor： FUKUDA TADANORI ,  AOYAGI MUTSUO

IPC: C04B41/63 ,  C04B41/48

Abstract: PURPOSE:To improve efflorescence preventing property and product strength by forming a coating film of a synthetic resin coating material contg. a cation exchange resin on the surface of a cement substrate. CONSTITUTION:A synthetic resin coating material such as an acrylic resin emulsion is blended with powder of sulfonated polystyrene-divinylbenzene resin or phenolsulfonic acid resin having 1-100mum particle diameter as a cation exchange resin so that the powder is contained in a formed coating film by 5-25wt.% and a coating material made of a coating compsn. is prepd. The surface of a cement substrate is coated with this coating material by spray coating or other method and the coated surface is dried to produce the objective cement product with a coating film having 10-150mum thickness on dry basis.

公开(公告)号：JPH06186442A

公开(公告)日：1994-07-08

申请号：JP34074292

申请日：1992-12-21

Applicant: TORAY INDUSTRIES

Inventor： MATSUMOTO MASAHIRO ,  FUKUDA TADANORI

IPC: G02B3/00 ,  G02B6/00 ,  G02B6/028 ,  G02B6/18

Abstract: PURPOSE:To obtain a distributed refractive index type optical transmission body superior in translucent performance, mechanical characteristics and heat resistance. CONSTITUTION:A colorless transparent nonpolymeric compound being compatible with a polymer constituting the optical transmission body and also having a higher refractive index than it of the polymer, is dispersed in a concentration distribution continuously decreasing from a central part of the optical transmission body to the peripheral part, and the plastic optical transmission body has a distributed refractive index continuously decreasing from the central part to the peripheral part. A colorless transparent polymer incorporating an aliphatic N-substituted maleimide monomer unit as a copolymer component, is used.

公开(公告)号：JPH0446931A

公开(公告)日：1992-02-17

申请号：JP15576890

申请日：1990-06-13

Applicant: TORAY INDUSTRIES

Inventor： KARASAWA HIROO ,  KIMURA MICHIO ,  FUKUDA TADANORI

IPC: C08G75/02 ,  C08G75/0254

Abstract: PURPOSE:To increase intrinsic viscosity, decrease reaction time, and improve mechanical strengths by conducting the polycondensation of an alkali metal sulfide with a dihalide compd. in the presence of a specific quaternary ammonium salt. CONSTITUTION:An alkali metal sulfide (e.g. sodium sulfide nona-hydrate) and a dihalide compd. of formula I (wherein R and R are each H or a hydrocarbon group; and R is a direct bond or a hydrocarbon group) (e.g. 1,6-dibromohexane) are polycondensed in the presence of a phase transfer catalyst comprising a quaternary ammonium salt of formula II (wherein R to R are each an aliph. alkyl group provided that at least two of them are 6C or higher alkyl) (e.g. trioctylmethylammonium chloride) in a solvent at 50-150 deg.C.

公开(公告)号：JPH03107105A

公开(公告)日：1991-05-07

申请号：JP24616189

申请日：1989-09-20

Applicant: TORAY INDUSTRIES

Inventor： MATSUNAGA TADAYOSHI ,  SUGANUMA HEIROKU ,  FUKUDA TADANORI ,  NAKAMURA GENZABURO

IPC: G02B6/00 ,  C08F20/22 ,  C08F22/36 ,  C08F220/22 ,  C08F222/40

Abstract: PURPOSE:To obtain the clad material having good thermal stability by consisting the material of a copolymer of a prescribed ratio of fluoroalkyl methacrylate having a prescribed compsn. and a prescribed ratio of N-alkyl maleimide having a prescribed compsn. CONSTITUTION:This clad material is constituted of the copolymer contg. 70 to 99.8mol% fluoroalkyl methacrylate unit expressed by formula I and 30 to 0.2mol% N-alkyl maleimide expressed by formula II. In the formula I, R1: H or F, m: 1 or 2, n: 4 to 10 integer. In the formula II, R2: a group selected from the group of butyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, hexyl, cyclohexyl. The thermal stability is extremely improved in this way as compared with the sheath material of the conventional alkyl methacrylate fluoride system and, therefore, the optical fiber is stably produced and the optical fiber having the excellent long-term heat resistance is obtd.

公开(公告)号：JPH0352925A

公开(公告)日：1991-03-07

申请号：JP18840389

申请日：1989-07-19

Applicant: TORAY INDUSTRIES

Inventor： ADACHI MASAYA ,  OHASHI MASAYASU ,  FUKUDA TADANORI

IPC: G02B1/04 ,  C08G65/40 ,  G11B7/253

Abstract: PURPOSE:To provide an optical resin material having reduced optical distortion and excellent heat resistance by compounding as a main component a polyether resin prepared by reacting an epihalohydrin with diols comprising specific amounts of 2,2'-biphenol and a 4,4'-bisphenol derivative. CONSTITUTION:An optical resin material suitable for optical disk substrates, etc., comprising a polyether resin prepared by polycondensing an epihalohydrin with diols comprising 20-80mole% of 2,2'-biphenol and 80-20mole% of a 4,4'- bisphenol deriwative [e.g. 2,2-bis(4-hydroxyphenyl)propane] in the presence of a strong alkali catalyst (e.g. sodium hydroxide) and having structured units of formulas I and II (R1 and R2 are 1-12C hydrocarbon groups; X is O, S, etc.; X1 and X2 are H, halogen, etc.; m and n are 0-4) as main repeating units, preferably in an amount of >=95wt.% is obtained.

公开(公告)号：JPH02245030A

公开(公告)日：1990-09-28

申请号：JP6715589

申请日：1989-03-17

Applicant: TORAY INDUSTRIES

Inventor： FUKUDA TADANORI ,  NAKAMURA GENZABURO

IPC: C08G63/688 ,  C08G63/00 ,  C08G75/00 ,  C08G75/26

Abstract: PURPOSE:To obtain a sulfur-containing aromatic polyester resin having a high refractive index and a low double refractive index and suited as an optical material comprising structural units each comprising a diphenic acid component and a benzenedithiol or mercaptophenol component. CONSTITUTION:A sulfur-containing aromatic polyester resin is prepared from a thermoplastic polyester having structural units of formula I (wherein X is a halogen atom or a hydrocarbon group, and n is 0-4) each comprising a diphenic acid component and a benzenedithiol component or comprising structural units of formula II each comprising a diphenic acid component and a mercaptophenol component as a base. This polyester resin can melt at a relatively low temperature and can be easily molded because of its good flowability.

公开(公告)号：JPH02167337A

公开(公告)日：1990-06-27

申请号：JP3074589

申请日：1989-02-08

Applicant: TORAY INDUSTRIES

Inventor： YOSHIMURA TOSHIO ,  FUKUDA TADANORI

IPC: C08G63/682

Abstract: PURPOSE:To obtain a fluorine-containing wholly aromatic polyester having excellent water repellency and oil repellency as well as high glass transition temperature by reacting a specific dicarboxylic acid dihalide with a diphenyl. CONSTITUTION:The fluorine-containing wholly aromatic polyester expressed by formula III, obtained by reacting (A) a dicarboxylic acid dihalide containing >=10mol% dicarboxylic dihalide expressed by formula I (X and X are 1-20C, preferably 1-6C alkyl or aromatic group substituted by one or more fluorine atoms; Z is halogen) with (B) diphenol (e.g. catechol or 2,2'-dihydroxybiphenyl) expressed by formula II (R is bivalent aromatic group, preferable having 1-4 nuclear units) in the presence of an organic solvent and quaternary ammonium salt (quaternary phosphonium salt) and having 0.1-2dl/g, preferably 0.2-1.5dl/g intrinsic viscosity and being >=220 deg.C in glass transition temperature.