-
公开(公告)号：US3639377A
公开(公告)日：1972-02-01
申请号：US3639377D
申请日：1968-08-07
Applicant: BASF AG
Inventor： TRIESCHMANN HANS-GEORG , WISSEROTH KARL , SCHOLL RICHARD , HERBECK RUDOLF
CPC classification number: B01J8/10 , C08F10/06 , Y10S526/913 , C08F2/34
Abstract: PROCESS FOR THE POLYMERIZAITON OF PROPYLENE IN THE GAS PHASE IN WHICH PROPYLENE IN LIQUID FORM IS INTRODUCED INTO A REACTION ZONE, VAPORIZED THEREIN AND POLYMERIZED WITH A CATALYST HAVING HIGH ACTIVITY.
-
2.发明授权Homopolymerization or copolymerization of vinyl chloride in the absence of solvents or dispersing agents 失效乙烯氯化物在溶剂或分散剂的无机物中的共聚合或共聚
公开(公告)号：US3687917A
公开(公告)日：1972-08-29
申请号：US3687917D
申请日：1970-08-19
Applicant: BASF AG
Inventor： WISSEROTH KARL , TRIESCHMANN HANS-GEORG , DODEL PETER , HOEHR LOTHAR , HERBECK RUDOLF , SCHOLL RICHARD
CPC classification number: C08F14/06 , Y10S526/909 , C08F2/02
Abstract: Process for the polymerization of vinyl chloride in the absence of solvents or dispersing agents in two stages. In the first stage the liquid monomers are polymerized to a conversion of from 1 to 15 percent; in the second stage polymerization is continued in the powder phase in the absence of liquid vinyl chloride. The process may be carried out continuously and gives very pure polymers which may be used for all purposes for which polyvinyl chloride is usually employed.
Abstract translation: 在不存在溶剂或分散剂的情况下在两个阶段聚合氯乙烯的方法。
-
公开(公告)号：FR1266746A
公开(公告)日：1961-07-17
申请号：FR834625
申请日：1960-08-01
Applicant: BASF AG
-
公开(公告)号：FR78628E
公开(公告)日：1962-08-17
申请号：FR842682
申请日：1960-10-31
Applicant: BASF AG
Inventor： HELMS ALFRED , HERBECK RUDOLF , LAUTENSCHLAGER HANS , TRIESCHMANN HANS GEORGE
-
5.发明专利
公开(公告)号：CA703004A
公开(公告)日：1965-02-02
申请号：CA703004D
Applicant: BASF AG
Inventor： SCHMIDT-THOMEE GEORG , WISSEROTH KARL , HERBECK RUDOLF , LAUTENSCHLAGER HANS , MOELLER HANS , STAIGER GERHARD , TRIESCHMANN HANS G , WEBER HEINZ
-
Patent Agency Ranking
公开(公告)号：FR1286703A
公开(公告)日：1962-03-09
申请号：FR849213
申请日：1961-01-09
Applicant: BASF AG
Inventor： HRUBESCH ADOLF , MOELLER HANS , HERBECK RUDOLF
IPC: C08K5/372
-
公开(公告)号：GB1042178A
公开(公告)日：1966-09-14
申请号：GB3128763
申请日：1963-08-08
Applicant: BASF AG
Inventor： TRIESCHMANN HANS GEORG , MOELLER HANS , SCHMIDTTHOMEE GEORG , ALT CHRISTIAN , HERBECK RUDOLF
IPC: C08F8/50
Abstract: The molecular weight distribution of a polyolefin is narrowed by a process wherein the polyolefin is brought for 0.001 to 100 seconds into a shear gradient whose speed gradient is from 1500 to 200,000 seconds-1. The process may be effected in a screw extruder, a high-speed kneader or a roll mill, and may be in the presence or absence of oxygen. Stabilizers (e.g. see Example 1) also may be present.
-
公开(公告)号：GB896306A
公开(公告)日：1962-05-16
申请号：GB3762260
申请日：1960-11-02
Applicant: BASF AG
Inventor： HELMS ALFRED , HERBECK RUDOLF , LAUTENSCHLAGER HANS , TRIESCHMANN HANS GEORG
Abstract: In an improvement in the process of the parent Specification for the thermal oxidative degradation and simultaneous purification of linear polyolefins prepared by polymerization of olefins containing 2 to 4 carbon atoms with catalysts containing heavy metals of Group IVa, Va or VIa of the Mendeleeff Periodic Table and which contain small amounts of these catalysts, which comprises dissolving the polyolefin in an inert organic solvent and heating the solution in the presence of oxygen or oxygen supplying compounds for 15 to 200 minutes at 70 DEG to 240 DEG C., the solution of the polyolefin is prepared from a suspension of the polyolefin in the solvent by leading in superheated steam. The superheated steam may be under a pressure of 5 to 100 atmospheres, and basic compounds such as ammonia or alkylamines, air or oxygen may be metered into the steam. In an example a solution of polypropylene is prepared from a suspension thereof in heptane by leading in steam at 14 atmospheres into which ammonia and air have been metered.
-
9.发明专利
公开(公告)号：GB883804A
公开(公告)日：1961-12-06
申请号：GB2642660
申请日：1960-07-29
Applicant: BASF AG
Inventor： WISSEROTH KARL , HERBECK RUDOLF , LAUTENSCHLAGER HANS , MOELLER HANS , SCHMIDT-THOMEE GEORG , STAIGER GERHARD , TRIESCHMANN HANS GEORG , WEBER HEINZ
Abstract: Linear polyolefines which have been prepared by the polymerization of olefines containing two to four carbon atoms using as catalysts heavy metals of Group IV(a), V(a), or VI(a) of the Mendelleeff Periodic System are simultaneously purified and thermally degraded by dissolving or swelling the polyolefine in an inert organic solvent and heating the solution in the presence of oxygen or oxygen-supplying compounds for 15 to 200 minutes at a temperature between 70 DEG and 240 DEG C. Optionally the heat-treatment may be effected in the presence of 2 to 20% of water and in the presence of such an amount of an alkaline compound that the pH in the aqueous solution after the heat-treatment step is 6 to 7. Substances which have a large internal surface on to which impurities are absorbed may be added to the polymers before, during, or after the heat-treatment. Suitable substances are carbon, aluminium oxide, bleaching earths, and kieselguhr. The linear polymers may be polyethylene, polypropylene, or copolymers of ethylene and/or propylene and/or butene-1. Specified solvents are tetra- or decahydro-naphthalene, cyclohexane, benzene, toluene, xylene, and ethylbenzene. The oxygen-supplying compounds may be peroxides. Alkaline compounds which may be included in the heat-treatment step are ammonia, sodium, potassium, or calcium hydroxide, hydroxylamine or aniline.
-
公开(公告)号：AU7001274A
公开(公告)日：1975-12-18
申请号：AU7001274
申请日：1974-06-12
Applicant: BASF AG
Inventor： SCHICK HANS , URBAN FRIEDRICH , KOLK ERICH , SCHWEIER GUENTHER , HERBECK RUDOLF
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.022 seconds)
