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1. 发明专利

JPH0633479B2 失效
公开(公告)号：JPH0633479B2
公开(公告)日：1994-05-02
申请号：JP19162486
申请日：1986-08-18
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI , IZEKI JUJI , TAKESUE MASAHIRO , KAWAHARA TAKEO
IPC分类号： C25B9/00 , C25B1/46 , C25B9/08 , C25B13/08

2. 发明专利

JPH05287027A 失效
公开(公告)号：JPH05287027A
公开(公告)日：1993-11-02
申请号：JP8548892
申请日：1992-04-07
申请人： TOKUYAMA SODA KK
发明人： MIZUTANI YUKIO , TAKADA KUNIAKI , SHIMADA KAZUNORI
IPC分类号： C08F214/06
摘要： PURPOSE:To obtain a copolymer excellent in moldability and surface repellency. CONSTITUTION:Vinyl chloride is randomly copolymerized with a fluorovinyl ether of the formula: CF2=CFOCH2Rf (wherein Rf is a fluorohydrocarbon group or a group derived by bonding fluorohydrocarbon groups through an ether group) (e.g. pentafluoropropyl vinyl ether) to obtain a vinyl chloride copolymer comprising 99.95-95mol% repeating units derived from vinyl chloride, and 0.05-5mol% repeating units derived from the fluorovinyl ether.

3. 发明专利

JPS6043857B2 JPS6043857B2 - 失效
公开(公告)号：JPS6043857B2
公开(公告)日：1985-09-30
申请号：JP6666178
申请日：1978-06-05
申请人： Tokuyama Soda Kk
发明人： TAKADA KUNIAKI , SADA TOSHIKATSU , KAGYAMA YASUHIRO , KUROKAWA FUMIO , YAMAMOTO TAKAHISA
IPC分类号： C08F8/00 , B01J47/12 , C08F8/32 , C08J5/22 , C25B13/08

4. 发明专利

JPS5852490A MANUFACTURE OF CATION EXCHANGE MEMBRANE-CATALYTIC ELECTRODE JOINED BODY 失效
公开(公告)号：JPS5852490A
公开(公告)日：1983-03-28
申请号：JP14950681
申请日：1981-09-24
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI , TOMOGUCHI SUNAO , FUKUOKA MASAO
IPC分类号： C25B9/10 , C25B1/46 , C25B11/00 , C25B13/00
摘要： PURPOSE:To drop the voltage of an electrolytic cell and to make it close to the theoretical electrolytic voltage by forming a catalytic electrode layer on the surface of a cation exchange membrane with a binder having cation exchange groups. CONSTITUTION:An electrode layer is formed on one side or both sides of a fluorine-contg. cation exchange membrane for electrolyzing an aqueous soln. of alkali metallic halide, etc. or a membraneous substance having functional groups convertible into cation exchange groups with fine particles of an electrode catalyst and a fluorine-contg. binder having cation exchange groups or functional groups convertible into cation exchange groups. The functional groups are converted into the cation exchange groups as required. The resulting electrode joined body shows high electrolytic performance especially in the electrolysis of NaCl, and even when the concn. of NaOH to be produced is increased, the current efficiency and the cell voltage are hardly increased. The joining is easily carried out and the joined body has high durability.

5. 发明专利

JPS55116404A ELECTRODIALYSIS 失效
公开(公告)号：JPS55116404A
公开(公告)日：1980-09-08
申请号：JP2455879
申请日：1979-03-05
申请人： TOKUYAMA SODA KK
发明人： SADA TOSHIKATSU , KAGIYAMA YASUHIRO , KUROKAWA FUMIO , TAKADA KUNIAKI
IPC分类号： B01D61/44 , B01D61/54
摘要： PURPOSE:To carry out efficiently the electrodialysis of an electrolyte such as ion by preventing the diffusion-leakage of a neutral substance and the adhesion of the neutral substance to the face of a membrane by a method wherein the concentration of the neutral substance in a solution is controlled and an ion exchange membrane whose surface is specifically treated is used. CONSTITUTION:In a method of separating a neutral substance from an electrolyte soln. contg. it by electrodialysis employing an ion exchange membrane, a solution contg. not less than 6wt% of the neutral substance is used and an ion exchange membrane having opposite charge to the charge of exchange group thereof is used. For example, benzoyl peroxide is added to a mixt. of styrene-divinylbenzene and polyvinyl chloride. A plain weave cloth made of PVC is coated with the resulting mixt. The resulting material is polymerized to form a macromolecular membrane. The membrane is immersed at a temp. of 60 deg.C in 98% or more conc. sulfuric acid and then in a 1% aq. soln. of sodium polystyrenesulfonate to produce an anion- exchange membrane. By using the produced membrane, a brine contg. glucose is subjected to electrodialysis. The diffusion-leakage rate of the glucose was not more than 5.5g.

6. 发明专利

JPS5578021A ANION EXCHANGE MEMBRANE 失效
公开(公告)号：JPS5578021A
公开(公告)日：1980-06-12
申请号：JP14992278
申请日：1978-12-06
申请人： TOKUYAMA SODA KK
发明人： SADA TOSHIKATSU , KAGIYAMA YASUHIRO , KUROKAWA FUMIO , TAKADA KUNIAKI
IPC分类号： B01J47/12 , B01D61/46 , B01J41/12 , C08J5/22
摘要： PURPOSE:An anion exchange membrane having a great ion exchange capacity, and a high concentration of fixed ions, obtained by combining alkyl groups of specific chain length with anion exchange groups. CONSTITUTION:Anion exchange groups present at least on the surface of an anion exchange membrane, preferably comprising vinylpyridine or a haloalkylstyrene as a component, are combined with 6-30C, preferably 8-20C alkyl groups. A long- chain alkyl halide as an alkylating agent is used for vinylpyridine membranes; a long-chain alkylamine or a trialkylstibine having long-chain alkyl groups, for a haloalkyl type membrane. The amount of the alkylating agent is preferably 2% or more based on the total ion exchange capacity.

7. 发明专利

JPS5322887A PRODUCTION OF ANION EXCHANGE MEMBRANE 失效
公开(公告)号：JPS5322887A
公开(公告)日：1978-03-02
申请号：JP9696776
申请日：1976-08-16
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI
IPC分类号： B01J47/12 , B01D61/46 , B01D65/10 , C08J5/22
摘要： PURPOSE:To produce an electrodialytic membrane used for separation of anions with different molecular weights each other by performing quaternary amination of an ion exchange membrane matrix in which groups which can be converted into strongly basic anion exchange groups have been made inert against quaternary amination beforehand and contacting the aminated matrix with a peroxide soln.

8. 发明专利

JPH04183704A VINYL CHLORIDE COPOLYMER AND PRODUCTION THEREOF 失效
公开(公告)号：JPH04183704A
公开(公告)日：1992-06-30
申请号：JP31158490
申请日：1990-11-19
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI , SHIMADA KAZUNORI , TSUBOI KATSUFUMI
IPC分类号： C08F214/06 , C08F16/14 , C08F216/14 , C08F290/00 , C08F290/06 , C08F299/04
摘要： PURPOSE:To obtain the subject copolymer having excellent processability and having good Vicat softening temperature, impact strength and thermal stability by copolymerizing a specific allyl ester with vinyl chloride. CONSTITUTION:An allyl ester of formula I {R is-R1-(0R2)l-[R1 is (hydroxy) alkylene, phenylene; R2 is alkylene; l is 0, 1]; m is 2, 4, 5; n is 1-500} is copolymerized with vinyl chloride to obtain the objective copolymer comprising 0.01-50mol% of monomer units of formula II and 50-99.99mol% of monomer units based on the vinyl chloride and having a number-average mol.wt. of 20000-600000.

9. 发明专利

JPH04159356A PRODUCTION OF RESIN CONTAINING INORGANIC COMPOUND 失效
公开(公告)号：JPH04159356A
公开(公告)日：1992-06-02
申请号：JP28417990
申请日：1990-10-24
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI , TABATA KAZUAKI
IPC分类号： C08K3/00 , C08F2/44 , C08F8/00 , C08F8/12 , C08F8/42 , C08J7/12 , C08L57/00 , C08L57/06
摘要： PURPOSE:To prepare the title resin excellent in heat resistance and mechanical properties by hydrolyzing a mixture consisting of a copolymer of an organometallic compd. having a polymerizable group and a hydrolyzable functional group with an unsatd. monomer and an inorg. compd. CONSTITUTION:The title resin is prepd. by hydrolyzing a mixture consisting of a copolymer of an organometallic compd. having a polymerizable group and a hydrolyzable functional group (e.g. a compd. of formula I, II, or III) with an unsatd. monomer (e.g. vinyl chloride, ethylene, or propylene) and an inorg. compd. (e.g. calcium carbonate, titanium oxide, alumina, or carbon black). The resin, having a remarkably improved heat resistance and improved mechanical properties such as tensile strength at a high temp., can be used, e.g. as a covering material for a warm water pipe and a heater.

10. 发明专利

JPH04120109A VINYL CHLORIDE-BASED COPOLYMER AND PRODUCTION THEREOF 失效
公开(公告)号：JPH04120109A
公开(公告)日：1992-04-21
申请号：JP23708590
申请日：1990-09-10
申请人： TOKUYAMA SODA KK
发明人： TAKADA KUNIAKI , SHIMADA KAZUNORI , TSUBOI KATSUFUMI , ARITA MASATOSHI
IPC分类号： C08F214/06 , C08F18/02 , C08F218/12 , C08F290/06
摘要： PURPOSE:To obtain the subject copolymer useful for a pipe fitting, an OA instrument housing and a film, etc., having excellent fluidity in processing, softening temperature, impact strength, heat resistance, flexibility and transparency by copolymerizing a specific allyl ester and vinyl chloride. CONSTITUTION:An allyl ester expressed by formula I (m is 2, 4 or 5; n is 1-500) is copolymerized with vinyl chloride preferably in a molar ratio of 0.01:99.99-50:50 to afford the aimed copolymer containing 0.01-50mol% monomer unit expressed by formula II and 50-99.99mol% monomer unit derived from vinyl chloride.

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