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公开(公告)号：EP0656017A1
公开(公告)日：1995-06-07
申请号：EP94920105.0
申请日：1994-06-06
申请人： CONOCO INC.
发明人： JOHNSTON, Ray, L. , FRY, Larry, G.
CPC分类号： F17D1/16 , C08F6/12 , Y10T137/0391 , C08L23/00
摘要： The present invention provides a process for precipitating a polyolefin from solution. The present invention also provides a polyolefin paste having drag reducing characteristics when dissolved in a flowing hydrocarbon stream and a method for making the drag reducing paste. Finally, the present invention provides a slurried drag reducer prepared from the paste for use in flowing hydrocarbon streams.
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2.发明公开ULTRA HIGH MOLECULAR WEIGHT POLYOLEFIN USEFUL AS FLOW IMPROVERS IN COLD FLUIDS 审中-公开具有超高分子量和用作低温液体磁场增强烯烃共聚物
公开(公告)号：EP1434805A1
公开(公告)日：2004-07-07
申请号：EP02766386.3
申请日：2002-09-27
申请人： Conoco, Inc.
IPC分类号： C08F210/14 , C10L1/16
CPC分类号： C10L1/165 , C08F110/14 , C08F210/00 , C08F210/14 , C10L1/10 , C10L1/1208 , C10L1/125 , C10L1/1283 , C10L1/1291 , C10L1/1641 , C10L1/1824 , C10L1/1826 , C10L1/1832 , C10L1/1852 , C10L1/1881 , C10L1/1966 , C10L1/198 , C10L1/224 , C10L1/2437 , C10L1/285 , Y10S526/903 , Y10S526/916 , Y10T137/0391 , C08F4/651 , C08F2500/17 , C08F2500/01 , C08F212/08
摘要： A drag-reducing polymer capable of dissolving even in cold fluids is described, along with a method for manufacturing said drag-reducing polymer. The drag-reducing polymer has at least one alpha-olefin monomer with between a four and nine carbon chain length and a co-monomer and has less than 25% monomers (molar content) with carbon chain lengths of 12 or longer. A drag-reducing polymer suspension is also described.
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公开(公告)号：EP1432754A1
公开(公告)日：2004-06-30
申请号：EP02766387.1
申请日：2002-09-27
申请人： Conoco, Inc.
CPC分类号： B02C23/12 , B02C19/186 , B02C21/00 , F17D1/17
摘要： A hydrocarbon-soluble drag-reducing suspension is described, along with a process for manufacturing the drag-reducing suspension. The drag-reducing suspension is easily transportable, non-hazardous, easily handled, and provides a significant increase in drag-reducing capability over existing products. The drag-reducing suspension is manufactured by grinding an ultra-high molecular weight polymer in the presence of a grinding aid and mixing it with a with a suspending fluid.
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公开(公告)号：EP1432755A1
公开(公告)日：2004-06-30
申请号：EP02766388.9
申请日：2002-09-27
申请人： Conoco, Inc.
CPC分类号： F17D1/17 , B02C19/186 , B02C21/00 , B02C23/12
摘要： A drag-reducing suspension is described, along with a process for manufacturing the drag-reducing suspension. The drag-reducing suspension is easily transportable, non-hazardous, easily handled, and provides a significant increase in drag-reducing capability over existing products.
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公开(公告)号：EP0932651A1
公开(公告)日：1999-08-04
申请号：EP97942494.0
申请日：1997-09-12
申请人： CONOCO INC.
发明人： JOHNSTON, Ray, L. , LEE, Yung, N.
摘要： This invention relates to improving the flow of flowing streams of hydrocarbons, such as petroleum or finished products, in a conduit such as a pipeline. The present invention also relates to a stable, nonagglomerating nonaqueous suspension suitable for improving flow of hydrocarbons in conduits, particularly finished product hydrocarbons in conduits.
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公开(公告)号：EP0885259A1
公开(公告)日：1998-12-23
申请号：EP96909608.0
申请日：1996-03-08
申请人： CONOCO INC.
CPC分类号： C08F10/00 , C08F110/14 , C08J3/03 , C08J2323/02 , C08K5/06 , C08L23/06 , C08L23/18 , C08F2/22 , C08F2/005 , C08F2/02 , C08F2500/17
摘要： Flow of a stream comprised of hydrocarbons is improved by introducing into the stream a stable, non-agglomerating suspension comprising: (a) water, (b) highly dispersed in the water, and substantially insoluble therein, and extremely finely-divided, non-crystalline, ultra-high molecular weight, hydrocarbon-soluble, undegraded polyalkene having 2 to about 30 carbon atoms per alkene precursor and an inherent viscosity of at least 20 dL/g, and (c) a small but effective amount of a surfactant having an HLB of at least about 9. The finely divided polyalkene is prepared by polymerization and then cryogrinding below the glass transition temperature of the polyalkene.
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