-
公开(公告)号：US3919292A
公开(公告)日：1975-11-11
申请号：US33987473
申请日：1973-03-09
发明人： VOFSI DAVID , ASSCHER MEIR
CPC分类号： C08F2/38
摘要： The production of chlorinated cotelomers in which a homogeneous solution of mixtures of vinyl chloride and vinylidine chloride or a binary or tertiary mixture of vinyl chloride and/or vinylidene chloride with a non-chlorinated vinyl monomer are polymerized in the presence of chloroform or carbon tetrachloride with a catalyst in the form of a ferrous or ferric compound.
摘要翻译： 制备氯化共聚物，其中氯乙烯和氯化亚乙烯基氯化物的混合物的均匀溶液或氯乙烯和/或偏二氯乙烯的二元或三元混合物与非氯化乙烯基单体的混合物在氯仿或四氯化碳存在下聚合， 亚铁或铁化合物形式的催化剂。
-
2.发明授权
公开(公告)号：US3876713A
公开(公告)日：1975-04-08
申请号：US23577672
申请日：1972-03-17
发明人： CORREIA YVES , STRINI JEAN-CLAUDE
CPC分类号： C07C17/04 , C07C19/055
摘要： A process for the preparation of tetrachloroethanes, trichloroethylene and pentachloroethane by chlorination of dichloroethylenes in the presence of a catalyst but in the absence of light radiations.
-
公开(公告)号：US3787447A
公开(公告)日：1974-01-22
申请号：US3787447D
申请日：1970-05-25
发明人： RAOUL P
IPC分类号： C07D307/89 , C07D5/32
CPC分类号： C07D307/89
摘要： THIS INVENTION IS ADDRESSED TO A NEW AND IMPROVED PROCESS FOR THE PREPARATION OF 3-ACETOXY PHTHALIDE FROM ORTHOXYLENE IN WHICH ORTHOXYLENE IN ACETIC ACID OR A MIXTURE OF ACETIC ACID AND ACETIC ANHYDRIDE IS OXIDIZED TO FORM THE 3-ACETOXY PHTHALIDE AND PHTHALIC ANHYDRIDE.
-
公开(公告)号：US3742019A
公开(公告)日：1973-06-26
申请号：US3742019D
申请日：1969-04-01
IPC分类号： C08F214/06 , C07C121/02 , C07C121/28
CPC分类号： C08F214/06
摘要： The production of chlorinated cotelomers in which a homogeneous solution of mixtures of vinyl chloride and vinylidene chloride or a binary or tertiary mixture of vinyl chloride and/or vinylidene chloride with a non-chlorinated vinyl monomer are polymerized in the presence of chloroform or carbon tetrachloride with a catalyst in the form of a ferrous or ferric compound.
摘要翻译： 制备氯化共聚物，其中氯乙烯和偏二氯乙烯的混合物的均匀溶液或氯乙烯和/或偏二氯乙烯的二元或三元混合物与非氯化乙烯基单体的混合物在氯仿或四氯化碳存在下聚合， 亚铁或三价铁化合物形式的催化剂。
-
公开(公告)号：US3683051A
公开(公告)日：1972-08-08
申请号：US3683051D
申请日：1969-02-25
发明人： CHATELAIN JEAN
IPC分类号： C08F259/04 , C08F15/00
CPC分类号： C08F259/04
摘要： Vinyl chloride is first polymerized in mass with high turbulent agitation to from 7 to 15 percent completion forming suspended polymer seeds in the liquid monomer, the suspension is added to a mixture of liquid vinyl chloride and low molecular weight olefin, and polymerization in mass is continued to completion, producing grains having a seed of the homopolymer of vinyl chloride surrounded by the copolymer. The first stage with high turbulence is carried out under warm conditions of usually about 50* to 60* C. and the second stage is carried out at from about -40* to +80* C. with mild agitation. The product is concentrated in a narrow range of particle sizes, e.g. 80 percent between 100 and 250 microns.
摘要翻译： 首先在高湍流搅拌下将氯乙烯聚合成7〜15％完成形成液体单体中的悬浮聚合物种子，将悬浮液加入到液态氯乙烯和低分子量烯烃的混合物中，并且继续质量聚合 制造由共聚物包围的具有氯乙烯均聚物的种子的颗粒。 高湍流的第一阶段通常在约50-60℃的温度条件下进行，第二阶段在温度搅拌下在约-40℃至+ 80℃下进行。 该产品集中在窄范围的粒度，例如 100％至250微米之间的80％。
-
公开(公告)号：US3658481A
公开(公告)日：1972-04-25
申请号：US3658481D
申请日：1970-04-06
CPC分类号： G01N30/68
摘要： A flame ionization detector assembly for use in gas chromatography including a detector and a gas sampling assembly comprising a housing defining primary passage means for gaseous effluent from a chromatography column, a needle and a valve seat, both of which are received in recesses defined by the housing and both of which define passages communicating with the primary passage means whereby a small portion of the gaseous effluent from the chromatography column passes from the primary passage means through the passages defined by the valve seat and the needle to a combustion zone.
摘要翻译： 一种用于气相色谱法的火焰离子化检测器组件，包括检测器和气体采样组件，其包括壳体，其限定用于来自色谱柱，针和阀座的气态流出物的主要通道装置，两者均被容纳在由 壳体，并且它们都限定与第一通道装置连通的通道，由此来自色谱柱的气体流出物的一小部分从主要通道装置通过由阀座和针限定的通道进入燃烧区。
-
7.发明授权Expansible pearls containing ethyl-ethylene propylene and so2 groups in a copolymer and processes of making them 失效在乙二醇中含有乙烯 - 乙烯丙烯和二氧化硫的膨胀型PE及其制备方法
公开(公告)号：US3655592A
公开(公告)日：1972-04-11
申请号：US3655592D
申请日：1968-08-29
发明人： CHATELAIN JEAN
CPC分类号： C08J9/20 , C08G75/22 , C08J2381/00
摘要： EXPANSIBLE PEARLS CONTAINING PROPYLENE, ETHYL-ETHYLENE, AND SO2, GROUPS WITH BUTENE-1 AND PROPANE. THEY ARE USEFUL AS ADJUVANTS TO SOIL IN AGRICULTURE, AS INSULATION AGAINST SOUND AND HEAT, AND TO MAKE CELLULAR ARTICLES BY MOLDING.
-
8.发明授权
公开(公告)号：US3634330A
公开(公告)日：1972-01-11
申请号：US3634330D
申请日：1969-04-22
发明人： MICHEL MAX , BENAROYA GERARD , JACQUES ROLAND
摘要： AN OXIDATION CATALYST FOR HYDROGEN CHLORIDE FORMED OF A CATALYTIC COMPONENT OF CUPRIC CHLORIDE AND AT LEAST ONE CHLORIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF AN ALKALINE METAL, AN ALKALINE EARTH METAL AND A RARE EARTH METAL IN COMBINATION WITH A SUPPORT FOR THE CATALYTIC COMPONENT IN THE FORM OF SPHEROIDAL PARTICLES COMPOSED ESSENTIALLY OF SILICA AND CONTAINING AT LEAST ONE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF A METAL OF THE GROUP II-A, III-B AND IV-B OF THE PERIODIC TABLE OF ELEMENTS, HAVING AN ATOMIC WEIGHT BELOW 178 AND ALUMINA, SAID SUPPORT HAVING A SPECIFIC SURFACE AREA WITHIN THE RANGE OF 40-400M.2/G.
-
公开(公告)号：US3632688A
公开(公告)日：1972-01-04
申请号：US3632688D
申请日：1968-08-23
发明人： LEGROS JEAN , JUILLARD MICHEL
CPC分类号： C08L27/06 , C08K5/09 , C08L63/08 , C08L71/02 , C08L2666/14
摘要： RESINS HAVING A POLYVINYL CHLORIDE BASE REINFFORCED WITH UP TO 5% BY WEIGHT OF A PROPYLENE OXIDE POLYMER, PREFERABLY HAVING A HIGH VISCOSITY AND OF A RUBBERY TYPE.
-
公开(公告)号：US3628914A
公开(公告)日：1971-12-21
申请号：US3628914D
申请日：1969-11-21
发明人： GRAULIER MAXIME
CPC分类号： C01F7/025 , B01J21/04 , B01J21/16 , B01J37/10 , C01P2004/50 , C01P2006/12 , C01P2006/13 , C01P2006/14 , C01P2006/21
摘要： The preparation of active alumina agglomerates of highmechanical strength and low-active surface consisting of treating pellets of alumina in an autoclave in an acidic medium at a temperature above 100* to 250* C. for a time within the range of 1-20 hours, followed by drying the treated pellets and calcining the dried pellets at elevated temperature.
-
-
-
-
-
-
-
-
-
搜索结果
153 条记录 (耗时 0.016 秒)
