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1. 发明专利

JP2002088111A OLEFIN POLYMERIZATION CATALYST 审中-公开
公开(公告)号：JP2002088111A
公开(公告)日：2002-03-27
申请号：JP2001235995
申请日：2001-08-03
申请人： UNION CARBIDE CHEM PLASTIC
发明人： JOB ROBERT C
IPC分类号： C08F4/60 , C08F4/646 , C08F4/654 , C08F4/657 , C08F4/658 , C08F10/00 , C08F110/06
摘要： PROBLEM TO BE SOLVED: To provide an olefin polymerization catalyst manufactured from an organic aluminum cocatalyst, a selectivity-controlling agent, and a procatalyst obtained from a precursor containing magnesium and titanium, and also an alkoxide component, and a method for polymerizing and copolymerizing an α-olefin, especially propylene using the catalyst. SOLUTION: The catalyst is highly active and at the same time stereospecific, and further it has high productivity and gives a large amount of a polymer having a desired excellent property.

2. 发明专利

JP2001181311A DEVICE FOR TAKING OUT GAS-FLUIDIZED BED PRODUCT 失效
公开(公告)号：JP2001181311A
公开(公告)日：2001-07-03
申请号：JP2000343367
申请日：2000-11-10
申请人： UNION CARBIDE CHEM PLASTIC
发明人： EISINGER RONALD STEVEN , JONES DAVID NUNN , GARNER BILLY JACK , HUSSEIN FATHI DAVID
IPC分类号： B01J4/00 , B01J8/00 , B01J8/24 , C08F2/01 , C08F2/34
摘要： PROBLEM TO BE SOLVED: To provide a discharge device for taking out a granular polymer product from a vessel accommodating a gas-fluidized bed for the granular polymer product. SOLUTION: The discharge device comprises (a) an opened and substantially cylindrical product removing leg arranged at the lower part of the fluidized bed of the granular product, (b) a product discharge valve located at the bottom of the product removing leg, and (c) a plurality of individual nozzle means directed to the surface of the valve means, the nozzle means being communicated to a gas source under pressure, whereby when the product discharge valve is at a closed position, some or all of the surface of the valve is continuously swept so that it does not hold the granular polymer.

3. 发明专利

JP2001019707A STAGED REACTOR PROCESS 失效
公开(公告)号：JP2001019707A
公开(公告)日：2001-01-23
申请号：JP2000165661
申请日：2000-06-02
申请人： UNION CARBIDE CHEM PLASTIC
发明人： JORGENSEN ROBERT JAMES , UPHAM STEPHANIE MARIE , MADDEN JAMES DANIEL , MICHIE WILLIAM JAMES JR
IPC分类号： C08F2/34 , C08F2/00 , C08F4/654 , C08F10/00 , C08F210/00 , C08F210/16 , C08F210/02
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an in situ blend, capable of regulating a melt flow ratio in line without changing a variable factor which is more difficult in control, e.g. the weight ratio of polymers. SOLUTION: This method for carrying out an in situ blending of polymers by bringing ethylene and one or more kinds of comonomers into contact with a catalyst system comprising (i) a carried or not-carried magnesium/titanium- based precursor materials containing an electron donor and (ii) a hydrocarbyl aluminum cocatalyst in a sufficient amount for finishing the activation of the precursor material comprises (A) increasing or decreasing the melt flow and/or the molecular weight by, respectively, decreasing or increasing the molar ratio of the precursor activator compound to the electron donor, or (B) increasing or decreasing the bulk density of the blend by, respectively, increasing or decreasing the molar ratio of the precursor activator compound to the electron donor.

4. 发明专利

JP2001002709A ULTRASONIC WAVE CATALYST FOR POLYMERIZING OLEFIN IN FLUIDIZED BED 失效
公开(公告)号：JP2001002709A
公开(公告)日：2001-01-09
申请号：JP2000167341
申请日：2000-06-05
申请人： UNION CARBIDE CHEM PLASTIC
发明人： RAMAMURTHY ARAKALGUD V , WILLIAMS CLARK CURTIS
IPC分类号： C08F2/00 , B01J8/00 , B01J8/18 , B01J8/20 , B01J8/40 , B01J19/26 , C08F2/34 , C08F10/00 , C08F10/02
摘要： PROBLEM TO BE SOLVED: To provide a method for supplying a liquid catalyst composition to a fluidized bed olefin polymerization reactor, by which liquid drops are instantaneously formed without or substantially without forming a belt at the exit of a nozzle and without needing a gas for forming the liquid drops, even when the flow rate of the liquid is extremely small. SOLUTION: This method for supplying a liquid catalyst composition to a fluidized bed olefin polymerization reactor comprises supplying the catalyst composition through an ultrasonic wave nozzle, wherein the catalyst composition does substantially not contain a gas. The catalyst composition preferably contains a 2 to 8C saturated hydrocarbon diluent, and the supply of the catalyst composition is preferably carried out by forming sprayed liquid drops surrounded by an inert gas. The sprayed liquid drops are preferably released from the above ultrasonic wave nozzle, and have an average liquid drop diameter of 1 to 100 μm and a diameter distribution span of

5. 发明专利

JP2000336111A PASSIVATION BY INACTIVE PARTICULATE MATTER FOR UNISITE CATALYST IN PRODUCTION OF EPDM 失效
公开(公告)号：JP2000336111A
公开(公告)日：2000-12-05
申请号：JP2000146248
申请日：2000-05-18
申请人： UNION CARBIDE CHEM PLASTIC
发明人： BAI XINLAI
IPC分类号： C08F2/34 , C08F4/642 , C08F4/659 , C08F4/6592 , C08F10/00 , C08F210/00 , C08F210/18 , C08F210/16
摘要： PROBLEM TO BE SOLVED: To carry out a passivation of an inactive particulate matter reducing a toxic effect of the inactive particulate matter, increasing catalytic activity and cost-reducing by contacting carbon black with trialkyl aluminum prior to a polymerization of constituting monomers. SOLUTION: In a vapor phase production of (A) ethylene-propylene rubber or (B) ethylene-propylene-diene rubber in the presence of (C) a unisite catalyst system and (D) an inactive particulate matter, the component D is preliminary treated with (E) a trialkyl aluminum compound having formula: AlR3 (R is a 1-14C alkyl). The component D is preliminary treated with a slurry including a diluent (i) selected from the group comprising 5-20C aliphatic hydrocarbon, etc., and the component E, in that case, 0,001-100 mmole of the component E is used for 1 g of the component D in the component i as the ratio of the component E to the component D.

6. 发明专利

JPH11335465A REMOVAL OF VOLATILE COMPONENT 失效
公开(公告)号：JPH11335465A
公开(公告)日：1999-12-07
申请号：JP34272998
申请日：1998-12-02
申请人： UNION CARBIDE CHEM PLASTIC
发明人： KHANIN DAVID , SCAROLA LEONARD SEBASTIAN
IPC分类号： C08J3/00 , B29B7/84 , B29C48/76 , B29K101/12 , C08F6/00 , C08F6/10 , C08G63/88 , C08J11/02 , B29C47/76
摘要： PROBLEM TO BE SOLVED: To provide a method for reducing or excluding a gaseous impurity in e resin melt in which the gaseous impurity has an ultralow diffusion rate or from the resin melt. SOLUTION: This method for removing a volatile material from a thermoplastic polymer containing a gaseous impurity in an apparatus equipped with a melting part, a mixing part and a vacuum part and comprises the following: (a) a step for adding a granular foaming agent directly or in a masterbatch to a polymer before introducing the polymer into the melting part or adding a gaseous foaming agent to the mixing part, (b) a step for melting the polymer in the mixing part, (c) a step for mixing the molten polymer with the foaming agent in the mixing part under a pressure sufficient to maintain the foaming agent in the mixture, (d) a step for decomposing the granular foaming agent in the mixing part and/or the vacuum part at a temperature sufficient for decomposition and expansion or expanding the gaseous foaming agent in the vacuum part, (e) a step for reducing the pressure of the molten polymer at the surface by an amount sufficient to remove essentially all the gaseous impurity in the vacuum part, (f) a step for suitably repeating the steps (c), (d) and (e) at least once and (g) and a step for recovering the polymer in an essentially unexpanded state.

7. 发明专利

JPH11255693A NEW ELECTRON DONATOR-CONTAINING COMPOSITION 失效
公开(公告)号：JPH11255693A
公开(公告)日：1999-09-21
申请号：JP34829798
申请日：1998-12-08
申请人： UNION CARBIDE CHEM PLASTIC
发明人： WILSON STANLEY E , BRADY III ROBERT CONVERSE
IPC分类号： C07C43/205 , C08F4/02 , C08F4/60 , C08F4/651 , C08F4/654 , C08F10/00 , C08F10/06
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition capable of producing a crystalline polyolefin product having good properties in high yield and high selectivity and useful as a highly active olefin polymerization catalyst by including a precursor catalyst comprising a specific component. SOLUTION: This composition comprises (A) a magnesium component (e.g. an alkylmagnesium or an arylmagnesium), (B) titanium component (preferably TiCl4 ), (C) a halide and (D) 1,2-dialkoxybenzene electron donator in which at least either one alkoxy group has at least two C atoms. In the component D, preferably, at least either one alkoxy group is ethoxy and especially preferably, both alkoxy groups are ethoxy groups. The component D includes preferably e.g. 1,2-diethoxybenzene or 1-ethoxy-2-isopentoxybenzene. Thereby, an olefin polymerization catalyst having high activity and high selectivity can be expected.

8. 发明专利

JPH10279743A HIGH STRENGTH POLYETHYLENE FILM 失效
公开(公告)号：JPH10279743A
公开(公告)日：1998-10-20
申请号：JP9696198
申请日：1998-03-26
申请人： UNION CARBIDE CHEM PLASTIC
发明人： KUPPERBLATT SANDRA A , TILSTON MICHAEL W , EALER GEORGE E
IPC分类号： C08J5/18 , B29C47/00 , B29K23/00 , B29L7/00 , C08L23/04 , C08L23/08
摘要： PROBLEM TO BE SOLVED: To obtain a high strength polyethylene film extruded from a blended material consisting of copolyethylenes. SOLUTION: This high strength polyethylene film consists of a blended material consisting of 2 kinds of ethylene/α-olefin copolymers having approximately 5-50 g/10 min range flow index, approximately 10-50 range melt flow rate, 0.900-0.940 g/cm density, approximately 98,000 190,000 range molecular weight and approximately 2-8 range Mw/Mn. The blended material is produced by mixing a first copolymer and a second copolymer both having almost similar molecular weights. Each copolymer is a copolymer of ethylene with a 3-8C α-olefin and the copolymers having the above characteristics in prescribed ranges are used.

9. 发明专利

JPH10204122A HIGH-STRENGTH POLYETHYLENE FILM 失效
公开(公告)号：JPH10204122A
公开(公告)日：1998-08-04
申请号：JP1009697
申请日：1997-01-06
申请人： UNION CARBIDE CHEM PLASTIC
发明人： MARK JUNKON HUGH , CHRISTINA MEY SPAULDING , THOMAS EDWARD SPRIGUS
IPC分类号： C08J5/18 , B29D7/00 , C08F4/654 , C08F10/00
摘要： PROBLEM TO BE SOLVED: To provide a polyethylene having positive characteristics attributable to a TMA activation catalyst system. SOLUTION: This film is produced by a process comprising the step of bringing ethylene and at least one 3-8C α-olefin comonomer (e.g. 1-butene or 1-hexene) into contact with a magnesium/titanium catalyst system containing a catalyst precursor containing an electron donor and supported or spray-dried and a promoter under polymerization conditions in a vapor phase in at least one fluidized bed reactor. The promoter should be triethylaluminum, and the atomic ratio of the aluminum to the titanium should be in the range of about 10:1 to about 22:1.

10. 发明专利

JPH10182498A CATIONIC THERAPEUTIC SYSTEMS 失效
公开(公告)号：JPH10182498A
公开(公告)日：1998-07-07
申请号：JP35963296
申请日：1996-12-20
申请人： UNION CARBIDE CHEM PLASTIC
发明人： DONABEDIAN DAVID H , MARLIN LAWRENCE , ING DONA J
IPC分类号： A61K9/08 , A61K47/30 , A61K47/38 , A61P27/02 , A61P27/06
摘要： PROBLEM TO BE SOLVED: To reduce an unpleasant feeling accompanying the use of a therapeutic agent at the time of treating glaucoma, and the like by providing the surface of mucosa with an aqueous solution containing a specific cationic polysaccharide polymer and a cationic therapeutic agent continuously releasing a therapeutic agent. SOLUTION: The surface of mucosa is provided with a solution comprising (A) water, (B) a cationic polysaccharide in an effective amount to provide the surface of mucosa with sustantivity and to produce a clear solution, replaced with >=0.1 moles per mole of polysaccharide of a quaternary nitrogen compound containing a 1-4C hydrocarbon substituent group per substituent group based on 1mol of the polysaccharide and (C) an effective amount of a cationic therapeutic agent to reach the surface of mucosa and to maintain a clear solution. A cationic cellulose compound substituted with 2,3- epoxypropyltrimethylammonium chloride is preferable as the composition B. For example, a β-blocker such as betaxolol and a therapeutic agent for glaucoma such as epinephrine may be cited as the component C.

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