Abstract: In a method for producing at least a single-walled tubular thermoplastic body in a machine, a nozzle head extrudes at least one tubular preform. The preform is expanded to a predefined dimension in a transverse direction and to a predefined shape in an expansion process using an expanding mandrel, the preform remaining open at the top and bottom. When the at least one preform has cooled off, the expanding mandrel is changed into a non-expanded state and the at least single-walled tubular body is removed from the machine.

Abstract: A small sewage treatment plant comprises a first sewage tank in which a preliminary clarification takes place due to the sinking of solid particles to the bottom of the first sewage tank, and a filtering device in a second sewage tank, which filtering device comprises several filters and to which the pre-clarified sewage is fed from above for further clarification. The filtering device has a rotary plate which is rotatable about a vertical axis of rotation and stores several filter containers, each filter container including several filters arranged above each other. In a lid of the second sewage tank, a closable tank opening is provided, via which at least one filter is removable when the associated filter container is opposite to the tank opening after a corresponding rotation of the rotary plate.

Abstract: A double barrel for hazardous goods with an outer barrel of plastic and an inner barrel of plastic received in the outer barrel. The body of the outer barrel is formed of a first barrel part and a second barrel part. The first barrel part has a first connecting area and the second barrel part has a second connecting area that is complementary to the first connecting area. The first and the second barrel part are firmly connected to each other via the connecting areas in an assembled state by means of a circumferential plastic weld seam.

Abstract: A transport and storage container of plastic for a filling material, having an inner container of polyethylene which is produced in the blow-molding method and which has a single-layer wall structure. The inner container is accommodated by an outer container, which is open at the top and which contains at least one layer of electrically conductive plastic. The outer lateral surface of the inner container is wrapped with an electrically dissipative flexible material, wherein at least one electrically conductive tab covers at least part of the top side of the inner container.

Abstract: A container made of plastic and having a receiving volume of 2000 to 10000 liters comprises an upper container part and a lower container part and at least one clamping device which connects the two container parts in a sealing manner. Further, a plastic blow molding process is described, which serves to produce the container.

Abstract: The invention relates to a method and a device for producing large-volume container trays of plastic. A tubular preform is guided over a mold frame which is facing two blow molds. During the closure of the blow molds, an encircling flange is formed on the outer edge of the container trays. After blow molding, the container trays are cut free from the mold frame along said mold frame.

Abstract: In a method for producing at least a single-walled tubular thermoplastic body in a machine, a nozzle head extrudes at least one tubular preform. The preform is expanded to a predefined dimension in a transverse direction and to a predefined shape in an expansion process using an expanding mandrel, the preform remaining open at the top and bottom. When the at least one preform has cooled off, the expanding mandrel is changed into a non-expanded state and the at least single-walled tubular body is removed from the machine.

Abstract: A double barrel for hazardous goods with an outer barrel of plastic and an inner barrel of plastic received in the outer barrel. The body of the outer barrel is formed of a first barrel part and a second barrel part. The first barrel part has a first connecting area and the second barrel part has a second connecting area that is complementary to the first connecting area. The first and the second barrel part are firmly connected to each other via the connecting areas in an assembled state by means of a circumferential plastic weld seam.

Abstract: A container made of plastic and having a receiving volume of 2000 to 10000 liters comprises an upper container part and a lower container part and at least one clamping device which connects the two container parts in a sealing manner. Further, a plastic blow molding process is described, which serves to produce the container.

Abstract: A transport and storage container of plastic for a filling material, having an inner container of polyethylene which is produced in the blow-molding method and which has a single-layer wall structure. The inner container is accommodated by an outer container, which is open at the top and which contains at least one layer of electrically conductive plastic. The outer lateral surface of the inner container is wrapped with an electrically dissipative flexible material, wherein at least one electrically conductive tab covers at least part of the top side of the inner container.

Abstract: The invention relates to a method and a device for producing large-volume container trays of plastic. A tubular preform is guided over a mold frame which is facing two blow molds. During the closure of the blow molds, an encircling flange is formed on the outer edge of the container trays. After blow molding, the container trays are cut free from the mold frame along said mold frame.

Abstract: A two steps polymerization process for obtaining a polyolefin composition comprising: a) from 25 wt % to 70 wt % of a propylene homopolymer or a propylene-ethylene copolymer containing from 0.1 wt % to 10 wt % of ethylene derived units; b) from 27 wt % to 70 wt % of a copolymer of ethylene and at least one C3-C20 alpha olefins, wherein the ethylene derived units content ranges from 15 wt % to 70 wt %; c) from 3 wt % to 20 wt % of polyethylene homopolymer or an ethylene and at least one C3-C20 alpha olefins copolymer; the sum a)+b)+c) being 100, wherein said process comprises: step a) contacting under polymerization conditions propylene, optionally ethylene and the catalyst system in order to obtain component a), step b) contacting under polymerization conditions ethylene and at least one C3-C20 alpha-olefins and the catalyst system in order to obtain components b) and c); wherein the catalyst system comprises a metallocene compound and an iron complex.

Abstract: A two steps polymerization process for obtaining a polyolefin composition comprising: a) from 25 wt % to 70 wt % of a propylene homopolymer or a propylene-ethylene copolymer containing from 0.1 wt % to 10 wt % of ethylene derived units; b) from 27 wt % to 70 wt % of a copolymer of ethylene and at least one C3-C20 alpha olefins, wherein the ethylene derived units content ranges from 15 wt % to 70 wt %; c) from 3 wt % to 20 wt % of polyethylene homopolymer or an ethylene and at least one C3-C20 alpha olefins copolymer; the sum a)+b)+c) being 100, wherein said process comprises: step a) contacting under polymerization conditions propylene, optionally ethylene and the catalyst system in order to obtain component a), step b) contacting under polymerization conditions ethylene and at least one C3-C20 alpha-olefins and the catalyst system in order to obtain components b) and c); wherein the catalyst system comprises a metallocene compound and an iron complex.

Abstract: Methods of preparing silica-supported catalysts useful for olefin polymerization are described. The catalysts comprise a metallocene complex. An activator mixture made from a boron acid compound and methylalumoxane is combined with either: (i) the metallocenecomplex, followed by calcined or chemically treated silica to give a supported catalyst; or (ii) calcined or chemically treated silica, followed by the metallocenecomplex to give a supported catalyst. The methods provide active supported catalysts.

Abstract: A process for the preparation of a catalyst paste comprising the following steps: a) obtaining a slurry in an organic solvent containing at least: a1) a support bearing functional groups; a2) a trialkylaluminum of formula (Ra)3Al wherein Ra, equal to or different from each other is a C1-C20 hydrocarbon radical optional containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; a3) a compound of formula (I) (R1)x-A-(OH)y??(I) wherein: A is an atom of group 13 or 15 of the Periodic Table; R1 equal to or different from each other, are C1-C40 hydrocarbon radicals optionally containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; Y is 1 or 2; X is 1 or 2; provided that x+y=3; a4) a transition metal organometallic compound; b) washing the resulting slurry one or more times with oil.

Abstract: A process for the preparation of a catalyst paste comprising the following steps: a) obtaining a slurry in an organic solvent containing at least: a1) a support bearing functional groups; a2) a trialkylaluminum of formula (Ra)3Al wherein Ra, equal to or different from each other is a C1-C20 hydrocarbon radical optional containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; a3) a compound of formula (I) (R1)x-A-(OH)y??(I) wherein: A is an atom of group 13 or 15 of the Periodic Table; R1 equal to or different from each other, are C1-C40 hydrocarbon radicals optionally containing heteroatoms belonging to groups 13-17 of the periodic table of the elements; Y is 1 or 2; X is 1 or 2; provided that x+y=3; a4) a transition metal organometallic compound; b) washing the resulting slurry one or more times with oil

Abstract: The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reacting A) a support bearing functional groups, B) triethylaluminum and C) a compound of the formula (I), (R1)x—A—OH)y??(I) where A is an atom of group 13 or 15 of the Periodic Table, R1 are identical or different and are each, independently of one another, hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalky, C7-C40-haloarylalkyl, C7-C40-alkylaryl, C7-C40-haloalkylaryl or an OSiR32 group, where R2 are identical or different and are each hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalkyl, C7-C40-haloarylalkyl, C7-C40-alkylaryl or C7-C40-haloalkylaryl, y is 1 or 2 and x is 3 minus y.

Abstract: The present invention relates to a process for preparing a supported cocatalyst for olefin polymerization, which comprises reacting A) a support bearing functional groups, B) triethylaluminum and C) a compound of the formula (I), (R1)x—A—OH)y??(I) where A is an atom of group 13 or 15 of the Periodic Table, R1 are identical or different and are each, independently of one another, hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalky, C7-C40-haloarylalkyl, C7-C40-alkylaryl, C7-C40-haloalkylaryl or an OSiR32 group, where R2 are identical or different and are each hydrogen, halogen, C1-C20-alkyl, C1-C20-haloalkyl, C1-C10-alkoxy, C6-C20-aryl, C6-C20-haloaryl, C6-C20-aryloxy, C7-C40-arylalkyl, C7-C40-haloarylalkyl, C7-C40-alkylaryl or C7-C40-haloalkylaryl, y is 1 or 2 and x is 3 minus y.

Abstract: A fluorous phosphine wherein the phosphor is coupled to at least one aryl or alkyl moiety, to which moiety a fluorous tail is coupled, wherein a spacer group, containing a non-carbon atom, is positioned between the aryl or alkyl moiety and the fluorous tail, a process for the preparation of said phosphines, metalcomplexes, catalysts and catalyst compounds therefrom and their use in catalysis.

Abstract: Continuous process for the preparation of pentafluoroethyl iodide from iodine, iodine pentafluoride and tetrafluoroethylene, which comprises dissolving the iodine in iodine pentafluoride and continuously feeding the resulting solution to a vertical bubble column (1), which is filled with iodine pentafluoride and at its lower end has a feed line for tetrafluoroethylene, where the reaction zone is maintained at from 85 to 95° C., preferably 90° C., and the pentafluoroethyl iodide formed escapes in gaseous form at the top of the reactor (1), is liquefied in a downstream cooled condenser and is drawn off into storage vessels.