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1. 发明专利

JPH10280180A APPARATUS FOR PRODUCTION OF HYDROGEN PEROXIDE WATER AND METHOD THEREFOR 失效
公开(公告)号：JPH10280180A
公开(公告)日：1998-10-20
申请号：JP9973597
申请日：1997-04-02
申请人： PERMELEC ELECTRODE LTD , KATAYAMA CHEMICAL WORKS CO
发明人： SHIMAMUNE TAKAYUKI , NAKAMATSU HIDEJI , TANAKA MASASHI , WAKITA SHUHEI , UNO MASAHARU , NISHIKI YOSHINORI , NISHIMURA KUNIO , ANDO MASAHIRO
IPC分类号： C01B15/01 , C25B1/30
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for electrolytic production of high-purity hydrogen peroxide water to be used for a washing treatment, etc., of electronic devices and liquid crystals. SOLUTION: At the time of forming atomic hydrogen in an electrolytic cell in which an anode 7 and a cathode 8 consisting of a hydrogen occlusion metal and/or alloy (more preferably palladium and palladium alloy) is housed and forming hydrogen peroxide by reducing the oxygen by the device, the anode and the cathode are segmented by using an ion exchange membrane 2 functioning as a solid electrolyte. As a result, the need for dissolving the electrolytic substance into the electrolyte is eliminated and the intrusion of the anodic substance into the hydrogen peroxide water to be formed is prevented and therefore, the hydrogen peroxide water of the high-purity free from the intrusion of impurities may be provided.

2. 发明专利

JPH0952803A AQUEOUS RESIN EMULSION AND LONG-ACTING UNDERWATER ANTIFOULING AGENT COMPRISING THE SAME 失效
公开(公告)号：JPH0952803A
公开(公告)日：1997-02-25
申请号：JP20253095
申请日：1995-08-08
申请人： KATAYAMA CHEMICAL WORKS CO
发明人： NOHASHI KENZOU , SAEKI YASUSHI , ANDO MASAHIRO
IPC分类号： A01N25/04 , A01N25/10 , A01N25/22 , A01N33/04 , A01N33/08 , C08F2/24 , C08F2/30 , C08F2/44
摘要： PROBLEM TO BE SOLVED: To obtain an antifouling agent which can inhibit marine foulings from attaching to fish nets, ship bottoms, marine water intake pathway by using a salt of a specific compound as an emulsifier and combining it with a (meth)acrylic monomer or other copolymerizable monomers. SOLUTION: One or two kinds of an N-alkylpolyamine of the formula (R is an 8-28C aliphatic hydrocarbon group residue which may be substituted with β-hydroxy group, an 8-28C alkoxy-1-6C alkyl; (n) is 1-5) is used as an emulsifier to effect emulsion polymerization of a (meth)acrylic monomer alone or copolymerization of its combination with other copolymerizable monomers in an aqueous medium. As an N-alkylpolyamine, N-oleyltripropylenetetramine is preferably cited and its salt is added to the aqueous emulsion of a resin in an amount of 1-20wt.%. The (meth)acrylic monomer is, for example, methyl (meth)acrylate, 2 hydroxyethyl (meth)acrylate and the other monomers are preferably maleic acid, styrene or the like.

3. 发明专利

JPH10120508A PREVENTION OF DAMAGE BY MARINE PERIPHYTON 失效
公开(公告)号：JPH10120508A
公开(公告)日：1998-05-12
申请号：JP27821596
申请日：1996-10-21
申请人： KATAYAMA CHEMICAL WORKS CO
发明人： WAKAO YOSHIHARU , ANDO MASAHIRO , SAEKI YASUSHI , MATSUMOTO TOMOHIKO
IPC分类号： A01N33/04 , A01N33/08
摘要： PROBLEM TO BE SOLVED: To precisely and economically prevent a marine periphyton by adding a higher aliphatic tertiary amines in a cooling water system by seawater under a specific condition. SOLUTION: This method for preventing a damage by a marine periphyton comprises measuring a transparency of the seawater, and controlling addition of a higher aliphatic tertiary amine or its salt based on the difference of the measured transparency. The higher aliphatic tertiary amine is preferably dodecyldimethylamine, octadecyldimethylamine, etc., and the salt thereof is preferably an acetic acid salt, a hydrochloric acid salt, etc. The sufficient adding amount of the higher aliphatic amine compound or its salt is the minimum effective amount for preventing the damage of the marine periphyton, because the concentration of the component of the higher aliphatic amine compound or its salt effective on the antifouling is accurately measured by this method. The addition amount of the active ingredient is decreased when the transparency is increased, and the addition amount is increased when the transparency is decreased. The change and increase of an adding position is preferable for manifesting an increasing effect of the active ingredient.

4. 发明专利

JPH08301706A STABLE UNDERWATER ANTIFOULING AGENT COMPOSITION IN SOLUTION FORM 失效
公开(公告)号：JPH08301706A
公开(公告)日：1996-11-19
申请号：JP11466495
申请日：1995-05-12
申请人： KATAYAMA CHEMICAL WORKS CO
发明人： SAEKI YASUSHI , KUMAGAI HIROO , ANDO MASAHIRO
IPC分类号： A01N25/02 , A01N33/04 , A01N47/14 , C09D5/14 , C09D5/16
摘要： PURPOSE: To obtain an underwater antifouling agent capable of extremely efficiently preventing damage from occurring especially due to coelenterates by combining a metallic salt of a dialkyldithiocarbamic acid with a specific amine compound at a specified molar ratio and mixing the resultant composition in an organic solvent. CONSTITUTION: This underwater antifouling agent is obtained by blending a metallic salt of a dialkyldithiocarbamic acid of formula I [R is a 1-4C alkyl; (n) is 2 or 3; X is zinc, copper or iron when (n) is 2 and iron when (n) is 3] with at least one of an N-substituted polyamine compound of formula II [R is an aliphatic hydrocarbon which may be substituted with β-OH or an alkoxy- lower alkyl; (n) is 3-5] at 1:(0.45-3.0) molar ratio and mixing the resultant blend in an organic solvent such as xylene. The antifouling agent is capable of preventing crustaceans of the family Balanidae, Hydroides norvegica Gunnerus, Mytilus edulis, etc., from attaching to a fishing net, a ship bottom, a seawater inlet channel, etc., for a long period by application thereto. The antifouling active component is uniformly dissolved in an organic solvent and capable of manifesting excellent stability in storage for a long period.

5. 发明专利

JPH04213391A ADDITIVE FOR DIESEL FUEL 失效
公开(公告)号：JPH04213391A
公开(公告)日：1992-08-04
申请号：JP5288191
申请日：1991-03-18
申请人： KATAYAMA CHEMICAL WORKS CO
发明人： YAMAMOTO AKIRA , GOTO HIRONOBU , ANDO MASAHIRO , KATAYAMA SAKAE
IPC分类号： C10L1/16 , C10L1/24 , C10L1/30 , C10L10/02 , F02B3/06
摘要： PURPOSE:To provide an additive for a diesel fuel which is easy to handle and contains overbasic calcium sulfonate in a high concentration. CONSTITUTION:An overbasic calcium sulfonate is dispersed in a specified organic solvent to obtain an additive for a diesel fuel which contains a high concentration of the overbasic calcium sulfonate and has a low viscosity and a high flash point.

6. 发明专利

JPH1017421A METHOD FOR PREVENTING ADHESION OF SLIME 失效
公开(公告)号：JPH1017421A
公开(公告)日：1998-01-20
申请号：JP19575996
申请日：1996-07-05
申请人： MITSUBISHI GAS CHEMICAL CO , KATAYAMA CHEMICAL WORKS CO
发明人： GOTO YUKIFUMI , WAKAO YOSHIHARU , ANDO MASAHIRO , TABUCHI TAKUO
IPC分类号： C02F1/50 , A01N59/00 , C02F1/46
摘要： PROBLEM TO BE SOLVED: To prevent the adhesion of slime in a water system such as a seawater system for cooling caused mainly by microorganisms by using a small amount of hydrogen peroxide and activating the peroxide by the application of a DC voltage. SOLUTION: Adhesion of slime caused by aerobic microorganisms is prevented by placing a cathode on the water-contacting face such as the inner wall and piping of a water facility and an anode at an arbitrary position enabling the contact with the water and applying a DC voltage between the cathode and the anode in the presence of a small amount of hydrogen peroxide. The hydrogen peroxide may be added to the system or generated in situ. The addition or generation amount of hydrogen peroxide is preferably about 0.01-2mg/L, especially 0.1-1.8mg/L. A durable electrode material such as carbon steel, lead alloy or high-silicon steel is preferable as the electrically conductive material for the cathode and the anode. The DC voltage is preferably about -202 000 to -200mV, especially -100,000 to -400mV for fresh water and about -2,500 to -200mV, especially -2,000 to -400mV for seawater in terms of the cathode potential based on a reference electrode relative to a saturated calomel electrode potential.

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