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公开(公告)号：DE2410317A1
公开(公告)日：1975-09-18
申请号：DE2410317
申请日：1974-03-05
Applicant: BASF AG
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公开(公告)号：DE2459162A1
公开(公告)日：1976-06-24
申请号：DE2459162
申请日：1974-12-14
Applicant: BASF AG
Inventor： MOORWESSEL DIETER DIPL CHEM DR , SCHOENE WERNER DIPL CHEM DR , STRICKLE ERICH ING GRAD , LAMPERT KLAUS DIPL CHEM DR
IPC: C09K3/24 , E01C13/12 , A63C19/10 , C08F110/02
Abstract: A snow substitute based on any ethylene polymerisate which consists of is not 80 wt.% of ethylene units has a density of 0.91-0.97 g/cm3 pref. 0.915 g/cm3 and is in the form of particles. The main axis of the particles i.e. the straight line through the two most distant points present, has a length of 10-10000 um pref. 100-6000 um, and the secondary axes have a length of is not 5% of the corresponding main axis pref. is not 10%. Particles of ethylene polymer prepared according to the invention can be applied directly to a provide background to produce a cover of "synthetic snow" of the desire thickness. It is also possible to set up the particles in an intimate mix with water-particles/water = 100-10 to 100-100 pts. wt- by e.g. spraying, the outside temperature being over or under 0 degrees C. the particles can be used in a mixture with natural snow or in combination with a brush type artificial snow. It has been shown to be advantageous if the particles are porous, when they are present together with water or snow.
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公开(公告)号：DE2459161A1
公开(公告)日：1976-06-24
申请号：DE2459161
申请日：1974-12-14
Applicant: BASF AG
Inventor： MOORWESSEL DIETER DIPL CHEM DR , SCHOENE WERNER DIPL CHEM DR , STRICKLE ERICH ING GRAD , LAMPERT KLAUS DIPL CHEM DR
IPC: C09K3/24 , E01C13/12 , A63C19/10 , C08F210/06
Abstract: The snow substitute is based on plastics materials such as polymerisates of monoolefin type unsatd. hydrocarbons or chlorinated hydrocarbons. Polymerisate consists of is not 80 wt.% monomer of molecular wt. 40. The synthetic materials have a wt. average molecular wt. 0.1-106 have a granular particle shape, have particles diameter of 10-3000 um, an apparent density which amounts to 5-60% of the density of the polymer. The particles are porous and have a wt. per unit vol. of 0.7-0.98 g/cm3. Specifically used is a mixture from (1) 70-90 pts. wt. of a polypropylene with 1 wt.% soluble in boiling or room temp. xylol and (2) 10-30 pts.wt. of a polypropylne with >99 wt.% soluble in boiling room temp. xylol. Sum of pts.wt. from (1) and (2) = 100. The polypropylenes in (1) and (2) have approximately similar intrinsic viscosities and mol.wt. distributions. The absolute intrinsic viscosity measured in Dekalin at 130 degrees C is in the range 1-15. Particles prepared according to the invention can be applied directly to a provide background to produce a cover of "synthetic snow of the desired thickness. It is generally an advantage to set up the synthetic particles in an intimate mix with water - particles water = 100-10 to 100-100 pts. wt. by e.g. spraying, the outside temperature being over or under 0 degrees C. The particles can be used in a mixture with natura snow or in combination with a brush type artificial snow.
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公开(公告)号：DE2441145A1
公开(公告)日：1976-03-11
申请号：DE2441145
申请日：1974-08-28
Applicant: BASF AG
Abstract: Packing strips are produced from polypropylene compsns. contg. 0.5-8 (1-4) wt. % (based on polypropylene) of a finely divided, uniformly distributed bituminous coal having particle size 5-150 (10-90) mu, by a process involving extrusion of polypropylene compsn. at 170-320 degrees C. to form primary strips, having cross-sectional area 0.5-20 (1-10)mm2 and ratio thickness: width 1:5 to 1:80, (1:10 to 1:40) and drawing longitudinally and monoaxially at surface temp. >60 degrees C. but below crystallite m.pt. of polypropylene component, in ratio 1:4 to 1:12. The polypropylene used has intrinsic viscosity (in decaline at 130 degrees C.) 1-9 dl/g and density (DIN 53 479) 0.8-0.92 g/cc; a proportion of 9 wt.% (at wt. ratio polypropylene: xylene 5:95) is soluble in xylene boiling under normal conditions and then cooled again to room temp.
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Patent Agency Ranking
公开(公告)号：DE2316846A1
公开(公告)日：1974-10-17
申请号：DE2316846
申请日：1973-04-04
Applicant: BASF AG
Inventor： KAUTZ GERHARD DIPL ING , LAMPERT KLAUS DIPL CHEM DR
Abstract: Process comprises mixing the thermoplastics with a foaming agent at a temp. above the softening temp. of the plastics and under pressure such that foaming of the mixt. is prevented; forcing the foamable mixt. into a lower-pressure zone; adjusting the bulk wt. of the foamed material to 10-90% of the sp. wt. of the thermoplastics; cooling the foamed foil to below the softening pt. of the plastics; and hauling off the cooled foil at >= x the rate at which the melt issued from the lip of the extrusion die. A wide range of plastics may be used, e.g. non-crosslinked polythylene, which may be so processed at above its crystallite m. pt. No additional shaping equipment is required. Also suitable for poluypropyklene, PVC, EVA and plystyrene.
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6.发明专利
公开(公告)号：DE2460363A1
公开(公告)日：1976-06-24
申请号：DE2460363
申请日：1974-12-20
Applicant: BASF AG
Abstract: A process is claimed for prepg. polypropylene tapes for packaging, comprising extruding a polypropylene (PP) moulding compsn. at 170-320 degrees C to form primary tapes with a cross-section area of 0.5-20 mm2 and thickness/width ratio of 1/5-1/80, and monoaxillay drawing the tapes longitudinally in the ratio 1/4-1/12 with their surface at >60 degrees C but less than the m.pt. of the PP crystallites. The compsn. comprises a mixt. of (a) 70-90 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) less than 1wt. % in soluble inboiling xylene under normal conditions, the xylene being then cooled again to room temp. and (b) 10-30 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) mor than 99 t.% are soluble in boiling xylene under normal conditions, the xylen being then cooled again to room temp, provided that (a) + (b) = 10, the PP's of (a) and (b) have intrinsic viscosities and molecular wt. distributions which are approximately equal (I.V. being 1-10 and measured in decaline at 130 degrees C and mol. wt. distribution by gel permeation chromatography). The process is characterised in that the compsn. contains 0.5-15 wt.% of finely divided coal fo particle size 5-150 um homogeneously distributed therein.
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公开(公告)号：DE2441147A1
公开(公告)日：1976-03-11
申请号：DE2441147
申请日：1974-08-28
Applicant: BASF AG
Abstract: Packing strips are produced from polypropylene compsns. contg. 0.5-8 (1-4) wt. %, (based on polypropylene component) of finely-divided, uniformly distributed chalk and/or talcum, having particle size 1-100 (5-50) mu, by a process in which (1) primary strips having cross-sectional surface 0.5-20 (1-10) mm2 and ratio thickness:width 1:5 to 1:80 (1:10 to 1:40) are extruded from compsn. at 170-320 degrees C and the primary strips are drawn longitudinally and monoaxially in ratio 1:4 to 1:12 (1:5 to 1:9), at a surface temp. >60 degrees C but below crystallite m.pt. of polypropylene component. A polypropylene compsn. is used in which polypropylene component has intrinsic viscosity (measured in decaline at 130 degrees C) of 1-9 dl/g and density (DIN 53479) 0.8-0.92 g/cc.
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8.发明专利
公开(公告)号：DE2441146A1
公开(公告)日：1976-03-11
申请号：DE2441146
申请日：1974-08-28
Applicant: BASF AG
Abstract: A process is claimed for prepg. polypropylene tapes for packaging, comprising extruding a polypropylene (PP) moulding compsn. at 170-320 degrees C to form primary tapes with a cross-section area of 0.5-20 mm2 and thickness/width ratio of 1/5-1/80, and monoaxillay drawing the tapes longitudinally in the ratio 1/4-1/12 with their surface at >60 degrees C but less than the m.pt. of the PP crystallites. The compsn. comprises a mixt. of (a) 70-90 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) less than 1wt. % in soluble inboiling xylene under normal conditions, the xylene being then cooled again to room temp. and (b) 10-30 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) mor than 99 t.% are soluble in boiling xylene under normal conditions, the xylen being then cooled again to room temp, provided that (a) + (b) = 10, the PP's of (a) and (b) have intrinsic viscosities and molecular wt. distributions which are approximately equal (I.V. being 1-10 and measured in decaline at 130 degrees C and mol. wt. distribution by gel permeation chromatography). The process is characterised in that the compsn. contains 0.5-15 wt.% of finely divided coal fo particle size 5-150 um homogeneously distributed therein.
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公开(公告)号：DE2358018A1
公开(公告)日：1975-05-28
申请号：DE2358018
申请日：1973-11-21
Applicant: BASF AG
Abstract: Plastics grains for use as soil-improvers, consist of polymerised ethylene or propylene, with average mol. wt. of 0.1-20 x 106, grit-shaped particles of dia. 10-1000 mu, and bulk density 5-60% of the density of the polyolefin. The prod. is easily worked into the soil, without blocking holes formed by aeriation, and gives improved drainage, penetration of air, etc.
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