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Process for producing polyolefins 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08F-004/24
출원번호 US-0459229 (1995-06-02)
발명자 / 주소
  • Bergmeister Joseph J. (Bartlesville OK) Kufeld Scott E. (Webster TX) McDaniel Max P. (Bartlesville OK)
출원인 / 주소
  • Phillips Petroleum Company (Bartlesville OK 02)
인용정보 피인용 횟수 : 30  인용 특허 : 25

초록 ▼

A process is provided to produce polyolefins having a multimodal molecular weight distribution at the molecular level by contacting at least one mono-1-olefin in a polymerization zone, under polymerization conditions, with two different types of supported chromium catalyst systems. The first catalys

대표청구항

A mixed catalyst composition comprising: a) a chromocene catalyst system comprising chromocene supported on an aluminophosphate support; and b) a chromium oxide catalyst system comprising chromium oxide supported on an inorganic oxide support.

이 특허에 인용된 특허 (25)

  1. Battiste David R. (Bartlesville OK) Willcox Kenneth W. (Bartlesville OK) Morgan Tommy J. (Ramona OK), Apparatus and method for evaluating the propensity of polymers for smoking during processing.
    상세보기
  2. Lo Frederick Y. (Edison NJ) Nowlin Thomas E. (Somerset NJ) Shirodkar Pradeep P. (Somerset NJ), Catalyst composition and process for polymerizing polymers having multimodal molecular weight distribution.
    상세보기
  3. McDaniel Max P. (Bartlesville OK) Short James N. (Bartlesville OK), Catalyst comprising a phosphate and with a bis-(cyclopentadienyl)chromium(II) compound.
    상세보기
  4. Ewen John A. (Houston TX), Catalyst systems for producing polyolefins having a broad molecular weight distribution.
    상세보기
  5. McDaniel Max P. (Bartlesville OK) Short James N. (Bartlesville OK), Ethylene polymer produced using a catalyst comprising a phosphate and with a bis-(cyclopentadienyl)chromium(II) compound.
    상세보기
  6. McDaniel Max P. (Bartlesville OK) Johnson Marvin M. (Bartlesville OK), Ethylene polymers made from phosphate supported chromium catalyst.
    상세보기
  7. McDaniel Max P. (Bartlesville OK) Klendworth Douglas (Bartlesville OK) Norwood Donald D. (Bartlesville OK) Hsieh Eric T. (Bartlesville OK) Boggs Elizabeth A. (Bartlesville OK), In situ comonomer generation in olefin polymerization.
    상세보기
  8. McDaniel Max P. (Bartlesville OK) Smith Paul D. (Seabrook TX), Method for producing olefin polymer blends utilizing a chromium-zirconium dual catalyst system.
    상세보기
  9. McDaniel Max P. (Bartlesville OK) Smith Paul D. (Seabrook TX), Method for producing olefin polymer blends utilizing a chromium-zirconium dual catalyst system.
    상세보기
  10. Katzen Stanley J. (Buffalo Grove IL) Pullukat Thomas J. (Hoffman Estates IL) Lynch Michael W. (Schaumburg IL) Rekers Louis J. (Wyoming OH), Mixed chromium catalysts and polymerizations utilizing same.
    상세보기
  11. McDaniel Max P. (Bartlesville OK) Johnson Marvin M. (Bartlesville OK), Phosphate supported chromium catalyst.
    상세보기
  12. McDaniel Max P. (Bartlesville OK), Phosphated alumina or aluminum phosphate chromium catalyst.
    상세보기
  13. McDaniel Max P. (Bartlesville OK) Short James N. (Bartlesville OK), Polymerization process using a catalyst comprising a phosphate and with a bis-(cyclopentadienyl)chromium(II) compound.
    상세보기
  14. McDaniel Max P. (Bartlesville OK) Johnson Marvin M. (Bartlesville OK), Polymerization process using catalysts with acid gelled aluminum phosphate base.
    상세보기
  15. McDaniel Max P. (Bartlesville OK) Johnson Marvin M. (Bartlesville OK), Polymerization process using phosphate supported chromium catalyst.
    상세보기
  16. McDaniel Max P. (Bartlesville OK), Polymerization using phosphated alumina or aluminum phosphate chromium catalyst.
    상세보기
  17. McDaniel Max P. (Bartlesville OK) Smith Paul D. (Seabrook TX) Norwood Donald D. (Bartlesville OK), Polymerization with surface silicated and fluorided alumina supported chromium.
    상세보기
  18. Ewen John A. (Houston TX) Welborn ; Jr. Howard C. (Houston TX), Process and catalyst for producing polyethylene having a broad molecular weight distribution.
    상세보기
  19. Ewen John A. (Houston TX) Welborn ; Jr. Howard C. (Houston TX), Process and catalyst for producing polyethylene having a broad molecular weight distribution.
    상세보기
  20. Benham Elizabeth A. (Bartlesville OK) McDaniel Max P. (Bartlesville OK), Process for making bimodal polyolefins using two independent particulate catalysts.
    상세보기
  21. Stricklen Phil M. (Bartlesville OK), Process for producing polyolefins and polyolefin catalysts.
    상세보기
  22. Stricklen Phil M. (Bartlesville OK), Process for producing polyolefins and polyolefin catalysts.
    상세보기
  23. McDaniel Max P. (Bartlesville OK) Johnson Marvin M. (Bartlesville OK), Production of aluminum phosphate from concentrated mass.
    상세보기
  24. McDaniel Max P. (Bartlesville OK) Smith Paul D. (Bartlesville OK) Norwood Donald D. (Bartlesville OK), Silicon and fluorine-treated alumina containing a chromium catalyst and method of producing same.
    상세보기
  25. Pettijohn Ted. M. (Bartlesville OK), Transition metal/rare earth catalyst and olefin polymerization process.
    상세보기

이 특허를 인용한 특허 (30)

  1. Benham, Elizabeth A.; McDaniel, Max P.; Collins, Kathy S., Additives to chromium catalyst mix tank.
    상세보기
  2. Benham, Elizabeth A.; McDaniel, Max P.; Collins, Kathy S., Additives to chromium catalyst mix tank.
    상세보기
  3. Mure,Cliff Robert; St. Jean,Guylaine; Jaker,Stephen Paul; Jorgensen,Robert J.; Breetz,Karen, Blow molding resins with improved ESCR.
    상세보기
  4. Hosoya,Eiichi; Egami,Kazutaka; Ishigaki,Shinya, Catalyst and process for decomposing carbonyl sulfide and hydrogen cyanide.
    상세보기
  5. Schmidt, Stephen R.; Chapman, David M.; Koranne, Manoj M.; Jensen, Michael D., Catalyst on silica clad alumina support.
    상세보기
  6. Schmidt, Stephen R.; Chapman, David M.; Koranne, Manoj M.; Jensen, Michael D., Catalyst on silica clad alumina support.
    상세보기
  7. Michael W. Tilston ; Vinayak Maheshwari ; Mark Bradley Davis, Control of resin split in single-reactor manufacture of bimodal polyolefins.
    상세보기
  8. Hottovy, John D.; Kufeld, Scott E., Flashline heater system and method.
    상세보기
  9. Hottovy, John D.; Kufeld, Scott E., Flashline heater system and method.
    상세보기
  10. Hottovy, John D.; Kufeld, Scott E., Flashline heater system and method.
    상세보기
  11. Johnson Paul ; Grosjean Abel ; Koch Benoit,BEX, Hollow bodies made of ethylene polymer and method of making same.
    상세보기
  12. Fischer, David; Bidell, Wolfgang; Moll, Ulrich; Rosch, Joachim; Langhauser, Franz; Hingmann, Roland; Gregorius, Heike; Suling, Carsten; Schweier, Gunther, Method for producing a supported catalyst.
    상세보기
  13. Davis, Mark B.; Madden, James Daniel, Method of controlling olefin polymerization.
    상세보기
  14. Mathews, Russel J.; Wall, Brent A.; Young, Aaron Monroe, Method of selecting polyolefins based on rheological properties.
    상세보기
  15. Yang, Qing; Crain, Tony R.; Lanier, Jerry T.; Fodor, Jeff S., Methods for controlling dual catalyst olefin polymerizations.
    상세보기
  16. Follestad, Arild; Jens, Klaus Joachim; Solli, Kjell-Arne; Nenseth, Svein, Multistage polymerization process using a catalyst having different catalytically active sites.
    상세보기
  17. McDaniel,Max P.; Benham,Elizabeth A.; Jensen,Michael D.; Collins,Kathy S.; Martin,Joel L.; Hawley,Gil R., Organochromium/metallocene combination catalysts for producing bimodal resins.
    상세보기
  18. Barry,David Bruce; Diamond,Gary M.; Fruitwala,Hitesh A.; Ong,Shih May Christine; Wang,Chunming, Polyethylene resins.
    상세보기
  19. Barry,David Bruce; Diamond,Gary M.; Fruitwala,Hitesh A.; Ong,Shih May Christine; Wang,Chunming, Polyethylene resins.
    상세보기
  20. Fischer, David; Bidell, Wolfgang; Moll, Ulrich; Rösch, Joachim; Langhauser, Franz; Hingmann, Roland; Gregorius, Heike; Süling, Carsten; Schweier, Günther, Preparation of a metal-containing supported catalyst or a supported catalyst component by impregnation of a support material.
    상세보기
  21. Reid, Thomas A.; Kufeld, Scott E.; Tait, John H.; Burns, David H.; Verser, Donald W., Process and apparatus for separating diluent from polymer solids.
    상세보기
  22. Reid, Thomas A.; Kufeld, Scott E.; Tait, John H.; Burns, David H.; Verser, Donald W., Process and apparatus for separating diluent from polymer solids.
    상세보기
  23. Verser, Donald W.; Burns, David H.; Hottovy, John D., Process and apparatus for separating polymer solids, hydrocarbon fluids, and purge gas.
    상세보기
  24. Follestad Arild,NOX ; Blom Richard,NOX ; Dahl Ivar Martin,NOX ; Jens Klaus-Joachim,NOX ; Eggen Svein Staal,NOX, Process for producing polyethylenes having a broad molecular weight distribution, and a catalyst system used thereby.
    상세보기
  25. Bergmeister, Joseph J.; Secora, Steven J.; Benham, Elizabeth A.; McDaniel, Max P., Process to produce polymers.
    상세보기
  26. Cann, Kevin J; Zhang, Minghui; Cevallos Candau, Jose Fernando; Moorhouse, John; Goode, Mark Gregory; Zilker, Jr., Daniel Paul; Apecetche, Maria, Production of broad molecular weight polyethylene.
    상세보기
  27. Cann,Kevin J; Zhang,Minghui; Cevallos Candau,Jose Fernando; Moorhouse,John; Goode,Mark Gregory; Zilker, Jr.,Daniel Paul; Apecetche,Maria, Production of broad molecular weight polyethylene.
    상세보기
  28. Cann, Kevin J; Zhang, Minghui; Cevallos-Candau, Jose Fernando; Moorhouse, John; Goode, Mark Gregory; Zilker, Jr., Daniel Paul; Apecetche, Maria, Production of polyethylene.
    상세보기
  29. Jens,Klaus Joachim; Follestad,Arild; Fredriksen,Siw Bodil; Blom,Richard; Dahl,Ivar Martin, Supported catalyst.
    상세보기
  30. Cann,Kevin J.; Zhang,Minghui; Cevallos Candau,Jose Fernando; Moorhouse,John; Goode,Mark Gregory; Zilker, Jr.,Daniel Paul; Apecetche,Maria, Supported chromium oxide catalyst for the production of broad molecular weight polyethylene.
    상세보기

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