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Static reduction 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08F-004/44
출원번호 US-0286182 (2002-11-01)
발명자 / 주소
  • Gupte, Kiran M.
  • Tolley, Kevin
  • Mutchler, Joel A.
  • Holland, Charles S.
출원인 / 주소
  • Equistar Chemicals, LP
대리인 / 주소
    Tyrell, JohnSchucharit, Jonathan L.
인용정보 피인용 횟수 : 0  인용 특허 : 27

초록

A gas-phase process for polymerizing an olefin is disclosed. The process involves feeding the catalyst into the reactor in a stream of gas that comprises at least 75 volume % of a noble gas in order to reduce static.

대표청구항

1. A process which comprises polymerizing an olefin in a reactor in the gas phase in the presence of a catalyst, wherein the catalyst is fed to the reactor in a stream of gas that comprises at least 75 volume % of helium. 2. The process of claim 1 wherein the stream of gas comprises at least 90 volu

이 특허에 인용된 특허 (27)

  1. Nagy Sandor ; Krishnamurti Ramesh ; Etherton Bradley P., Azaborolinyl metal complexes as olefin polymerization catalysts.
  2. Krishnamurti Ramesh (Amherst NY) Nagy Sandor (Grand Island NY) Etherton Bradley P. (Houston TX), Borabenzene based olefin polymerization catalysts.
  3. Sugano Toshihiko (Yokkaichi JPX) Takahama Tomohiko (Yokkaichi JPX), Catalyst components for polymerization of olefins and use thereof.
  4. Hlatky Gregory G. (Houston TX) Turner Howard W. (Webster TX), Catalyst system of enhanced productivity.
  5. Hlatky Gregory G. (Houston TX) Turner Howard W. (Webster TX), Catalyst system of enhanced productivity.
  6. Chinh Jean-Claude,FRX ; Filippelli Michel C. H.,FRX ; Newton David,GB2 ; Power Michael Bernard,GB2, Fluidized bed polymerization reactor.
  7. Miller Adam R. (Indianapolis IN), Fluidized bed reactor.
  8. Painter Roger B. (Scott Depot WV) Garner Billy J. (Charleston WV) Song Gyung-Ho (Seoul KRX), Gas phase fluidized bed polyolefin polymerization process using gas or gas-solids tangential flow.
  9. Daire Erick (Chateauneuf les Martigues FRX) Speakman John G. (Sausset les Pins FRX), Gas phase olefin polymerization process.
  10. Zhu Jingxu,CAX ; Grace John R.,CAX ; Jiao Shi-Yun,CNX, Gaseous fluidization aids.
  11. Dutta Arunava (Chestnut Hill MA) Dullea Leonard V. (Peabody MA), Heat transfer in fluidized bed of cohesive powder.
  12. Goeke George L. (Belle Mead NJ) Wagner Burkhard E. (Highland Park NJ) Karol Frederick J. (Belle Mead NJ), Impregnated polymerization catalyst, process for preparing, and use for ethylene copolymerization.
  13. Turner Howard W. (Houston) Hlatky Gregory G. (Houston) Eckman Richard R. (Houston TX), Ionic metallocene catalyst compositions.
  14. Chirillo John R. (Victoria TX) Kimbrough II Kellam C. (Inez TX) McHattie Peder E. (Victoria TX), Method for reducing sheeting during polymerization of alpha-olefins.
  15. Goode Mark G. (St. Albans WV) Hasenberg Daniel M. (Hurricane WV) McNeil Thomas J. (Hurricane WV) Spriggs Thomas E. (Cross Lanes WV), Method for reducing sheeting during polymerization of alpha-olefins.
  16. Spriggs Thomas Edward ; Riley ; Jr. James Laurence ; Madden James Daniel ; Schwarz ; Jr. George William ; Goode Mark Gregory, Method of modifying near-wall temperature in a gas phase polymerization reactor.
  17. Turner Howard W. (Webster TX), New polymerization catalyst.
  18. Turner Howard W. (Webster TX), New polymerization catalyst.
  19. Geerts Rolf L. (Bartlesville OK) Hill Tara G. (Fairfield OH), Organo-aluminoxy product and use.
  20. Etherton Bradley P. (Houston TX) Nagy Sandor (Grand Island NY), Polymerization catalysts based on transition metal complexes with ligands containing pyrrolyl ring.
  21. Nagy Sandor (Grand Island NY) Krishnamurti Ramesh (Amherst NY) Tyrell John A. (Williamsville NY) Cribbs Leonard V. (Houston TX) Cocoman Mary (Grand Island NY), Polymerization of a 상세보기
  • Rees Richard W. (Wilmington DE), Polymerization of ethylene or ethylene/a 상세보기
  • Noshay Allen (East Brunswick NJ) Karol Frederick J. (Belle Mead NJ) Jorgensen Robert J. (Dunbar WV), Preparation of low-density ethylene copolymers in fluid bed reactor.
  • Maurel Jean A. (Marseille FRX) Raufast Charles (Saint Julien les Martigues FRX), Process and device for introducing a powder into a reactor.
  • Nagy Sandor ; Etherton Bradley P. ; Krishnamurti Ramesh ; Tyrell John A., Single-site catalysts for olefin polymerization.
  • Goode Mark Gregory ; Williams Clark Curtis ; Hussein Fathi David ; McNeil Thomas James ; Lee Kiu Hee, Static control in olefin polymerization.
  • Wang Shaotian ; Etherton Bradley P. ; Meyer Karen E. ; Lynch Michael W. ; Winslow Linda N. ; Cribbs Leonard V. ; Liu Jia-Chu X., Supported olefin polymerization catalysts.
  • 문의처: helpdesk@kisti.re.kr전화: 080-969-4114

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