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71. 发明专利

JPH02501656A 失效
公开(公告)号：JPH02501656A
公开(公告)日：1990-06-07
申请号：JP50870988
申请日：1988-10-06
IPC分类号： B01J27/08 , C07B61/00 , C07C17/12 , C07C25/02 , C08F8/18 , C08F8/20 , C08F8/22 , C08K5/02 , C08K5/03 , C08L25/14 , C08L27/00 , C09K21/00 , C09K21/08

72. 发明专利

JPH01213308A PRODUCTION OF CHLORINATED ETHYLENE-BASED COPOLYMER 失效
公开(公告)号：JPH01213308A
公开(公告)日：1989-08-28
申请号：JP3698988
申请日：1988-02-19
申请人： SHOWA DENKO KK
发明人： WATANABE NAOTOSHI , SAKURAI SHOJI , MOGI YOSHIHIRO , IWASHITA TOSHIYUKI
IPC分类号： C08F8/20 , C08F8/22
摘要： PURPOSE:To obtain the present copolymer excellent in adhesivity, resistance to oil, weather and ozone, by chlorinating an ethylene-based copolymer in an aqueous dispersion in three steps under each specified condition. CONSTITUTION:An ethylene-based copolymer from ethylene and an alpha,beta-unsaturated dicarboxylic acid(anhydride) with 0.5-25mol.% copolymerization ratio of the alpha,beta-unsaturated dicarboxylic acid and the anhydride thereof and 0.1-100g/10min melt flow index is contacted with gaseous chlorine in an aqueous dispersion. In this case, the first step chlorination is carried out so as to be 20-60% of the total chlorination at such temperature as to be >=50 deg.C but at least 25 deg.C lower than the melting point of said ethylene-based copolymer followed by the second chlorination so as to be >=30% of the remaining chlorination and 60-90% of the total chlorination at such temperatures as to be at least 10 deg.C higher than that of the first step but 5-15 deg.C lower than the melting point of said ethylene-based copolymer. In the third step, the remaining chlorination is subsequently carried out at such temperatures as to be lower than the melting point of said ethylene-based copolymer but higher than those by 2 deg.C lower than the melting point of said ethylene-based copolymer, thus obtaining the objective chlorinated ethylene-based copolymer with 5-45wt.% chlorine content and >=5 Mooney viscosity (ML1+4, 100 deg.C).

73. 发明专利

JPH01210402A PREPARATION OF CHLORINATED ETHYLENE COPOLYMER 失效
公开(公告)号：JPH01210402A
公开(公告)日：1989-08-24
申请号：JP3274988
申请日：1988-02-17
申请人： SHOWA DENKO KK
发明人： WATANABE NAOTOSHI , SAKURAI SHOJI , MOGI YOSHIHIRO , IWASHITA TOSHIYUKI
IPC分类号： C08F8/20 , C08F8/22
摘要： PURPOSE:To obtain a copolymer having excellent ozone resistance, flame retardancy, heat resistance, wheatherability, mechanical strength and adhesiveness, by bringing at first a specified ethylene copolymer into contact with chlorine in an aq. suspension at a specified temp. to chlorinate the copolymer in part, annealing the mixture at an elevated temp. and then chlorinating the rest. CONSTITUTION:An ethylene copolymer of an MFR of 0.1-100g/10min is obtd. by copolymerizing ethylene with 0.5-25mol% alpha,beta-unsatd. dicarboxylic acid (or anhydride), etc., [e.g., maleic acid (or anhydride)]. Then, this copolymer is brought into contact with chlorine in an aq. suspension obtd. by suspending this polymer in an aq. medium by using a small amt. of an emulsifier, etc., at a temp. at least 20 deg.C lower than the m.p. of the copolymer and 50 deg.C or higher to chlorinate 20-60% of the copolymer. Then, in the second stage, the temp. is elevated to a temp. 1-10 deg.C higher than the m.p. of the copolymer and annealing is performed without introducing chlorine for 10-60min. In the third stage. chlorination of the rest is carried out at a temp. 2-20 deg.C lower than the m.p. of the copolymer to obtain the title copolymer having a chlorine content of 5-45wt.% and a Mooney viscosity (ML1+4, 100 deg.C) of 5 or larger.

74. 发明专利

JPH0195106A MANUFACTURE OF CHLORINATED VINYL CHLORIDE RESIN 失效
公开(公告)号：JPH0195106A
公开(公告)日：1989-04-13
申请号：JP25305087
申请日：1987-10-07
申请人： KANEGAFUCHI CHEMICAL IND
发明人： TSUBOKURA YOSHITERU , KUBOTA TAKAYOSHI , IKEDA MUNEHIRO , SHIMIZU TAKESHI
IPC分类号： C08F8/22 , C08F8/20 , C08F14/00 , C08F14/06 , C08K5/09 , C08L27/22 , C08L27/24
摘要： PURPOSE:To obtain a chlorinated vinyl chloride resin remarkably improved in thermal discoloration, by chlorinating a vinyl chloride resin while irradiating with light in the presence of water and formic acid or oxalic aid. CONSTITUTION:A small amount of formic acid, oxalic acid or a mixture thereof is added to a suspension comprising a vinyl chloride resin as ray material and water in a corrosion-resistant reaction vessel. After the air in the system is replaced with an inert gas, chlorine gas is blown into the vessel with sufficient stirring to carry out chlorination by irradiating with light. It is preferred that the concentration of formic acid and/or oxalic acid in the suspension is in the range of 0.01-2wt.% based on the total feed on the vinyl chloride and water. The chlorination is carried out at 30-80 deg.C under atmospheric pressure or slightly elevated pressure. The progress of the chlorination is monitored by measuring the concentration of a by-product, i.e., HCl, which corresponds to the degree of addition of chlorine, and when the aimed chlorination is attained, the irradiation with light and the supply of chlorine are stopped to complete the reaction.

75. 发明专利

JPS63193904A BROMINATION OF POLYSTYRENE AROMATIC RING USING BROMINE AS REACTIVE SOLVENT 失效
公开(公告)号：JPS63193904A
公开(公告)日：1988-08-11
申请号：JP1677788
申请日：1988-01-27
申请人： GREAT LAKES CHEMICAL CORP
发明人： DEEBITSUDO SHII SANDAASU , JIYON ERU SANZU , ROBAATO JIEI SUTAARU
IPC分类号： C08F8/22 , C08F8/20

76. 发明专利

JPS63145305A PREPARATION OF CHLORINATED VINYL CHLORIDE RESIN 失效
公开(公告)号：JPS63145305A
公开(公告)日：1988-06-17
申请号：JP29211486
申请日：1986-12-08
申请人： TOKUYAMA SEKISUI IND CORP
发明人： ADACHI TERUFUMI , KAKEI HIROSHI
IPC分类号： C08F8/22 , C08F8/20
摘要： PURPOSE:To prepare a chlorinated vinyl chloride resin providing a molten product which is sparingly colored and retains a good transparency when heated, by chlorinating a vinyl chloride resin while a mixture of the resin and chlorine is irradiated with light containing ultraviolet rays of a specified wavelength or longer. CONSTITUTION:A vinyl chloride resin is chlorinated while a mixture of the resin and chlorine is irradiated with light containing ultraviolet rays not including those having wavelengths less than 340nm. It is preferable that light containing such ultraviolet rays be applied to a suspension of the mixture of the resin and chlorine in an aqueous medium, because the resulting chlorinated vinyl chloride resin is sparingly colored when heated.

77. 发明专利

JPS63128006A PRODUCTION OF CHLORINATED ETHYLENE-PROPYLENE COPOLYMER 失效
公开(公告)号：JPS63128006A
公开(公告)日：1988-05-31
申请号：JP27300286
申请日：1986-11-18
申请人： SHOWA DENKO KK
发明人： WATANABE NAOTOSHI , MASUKAWA TAKESHI , OZAKI KENJI , MORIWAKI NOBORU
IPC分类号： C08F8/22 , C08F8/20
摘要： PURPOSE:To obtain the titled crosslinkable and vulcanizable copolymer useful as wire coating material, etc., having excellent heat resistance, freeze resistance, oil resistance, weather resistance and ozone resistance, by chlorinating and annealing a specific ethylene-propylene copolymer under specific conditions. CONSTITUTION:In bringing a chlorine gas into contact with an ethylene- propylene copolymer having 15-40wt% propylene content, 0.01-5.0g/10min melt flow index and 10-180 Mooney viscosity (ML1+4, 100 deg.C) in an aqueous suspension, at first stage 20-60wt% total chlorination amount of the copolymer is chlorinated at a temperature >=25 deg.C lower than the melting point of the copolymer and >=50 deg.C, at second stage the temperature of the copolymer is raised up to a temperature 1-7 deg.C higher than the melting point of the copolymer, the copolymer is annealed for 10-60min without introducing chlorine and at third stage the residue is chlorinated at a temperature 2-25 deg.C lower than the melting point of the copolymer to give the aimed copolymer having 20-45wt% chlorine content and 10-150 Mooney viscosity (ML1+4, 100 deg.C).

78. 实用新型

JPS6335262U 失效
公开(公告)号：JPS6335262U
公开(公告)日：1988-03-07
申请号：JP12138087
申请日：1987-08-07
IPC分类号： H01M4/36 , C08F8/22 , H01M4/06 , H01M4/08 , H01M4/60 , H01M6/18

79. 发明专利

JPS62155919A MEMBRANE FOR SEPARATING COMPONENTS OF GASEOUS MIXTURE, ITS PRODUCTION AND SEPARATION METHOD 失效
公开(公告)号：JPS62155919A
公开(公告)日：1987-07-10
申请号：JP29225586
申请日：1986-12-08
申请人： AIR PROD & CHEM
发明人： MAIKERU RANSAMU
IPC分类号： C08J5/18 , B01D53/22 , B01D67/00 , B01D71/44 , B01D71/70 , C08F8/20 , C08F8/22
摘要： The present invention is a treated, semi-permeable, polymeric membrane having improved selectivity for separating components of a gas mixture. The membrane is provided by fluorinating a polymer cast into membrane form, having the general structural formula:Wherein R, is a linear or branched C 1 -C 4 alkyl group; R 2 and R 3 are independently linear or branched C 1 -C 6 alkyl groups; R 4 is a linear or branched C 1 -C 12 alkyl or aryl group; X is a C,-C 3 alkyl group orm is at least 100; and r, is 0 or 1.

80. 发明专利

JPS6284103A PRODUCTION OF CHLORINATED VINYL CHLORIDE RESIN FORMING TRANSPARENT SOLUTION AT LOW VISCOSITY 失效
公开(公告)号：JPS6284103A
公开(公告)日：1987-04-17
申请号：JP22333685
申请日：1985-10-07
申请人： TOKUYAMA SEKISUI IND CORP
发明人： ADACHI TERUFUMI , KAKEI HIROSHI
IPC分类号： C08F214/06 , C08F2/18 , C08F8/20 , C08F8/22
摘要： PURPOSE:To obtain the titled chlorinated vinyl chloride resin, by copolymerizing vinyl chloride with an alpha-olein in an aqueous medium using only a cellulosic derivative as a dispersion medium and chlorinating the resultant resin. CONSTITUTION:Vinyl chloride and an alpha-olefin, e.g. ethylene, are dispersed in an aqueous medium containing preferably 0.01-0.2pt.wt., based on the monomers to be polymerized, only substantially cellulosic derivative, e.g. methyl cellulose or hydroxypropyl methyl cellulose, present as a dispersion medium and copolymerized in the presence of an oil-soluble polymerization initiator, e.g. benzoyl peroxide, to produce a copolymer of the vinyl chloride containing 2-10wt% alpha-olefin, which is then chlorinated to give normally 60-65wt% chlorine content.

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