Title:
良好な機械的特性を有する無臭のエチレンホモポリマー及びコポリマー
Document Type and Number:
Japanese Patent JP4104126
Kind Code:
B2
Abstract:
A process for preparing ethylene homopolymers and copolymers in a tubular reactor having two or more polymerization zones at temperatures of between 150° C. and 350° C. and pressures in the range from 500 to 5000 bar, using oxygen as initiator, which comprises using, as molar mass regulator, one or more aliphatic ketones of the formula I, where the variable R1 is a C1-C6-alkyl or C3-C12-cycloalkyl, ethylene homopolymers and copolymers obtainable therefrom and their user for producing injection-molded products in the cosmetics, medical and food sectors are described.
Inventors:
Mailing, Frank-Olav
Decas, Andreas
Kehler, Gernot
Schmitz, Axel
Witkowski, Rals
Hopach, Michael
Decas, Andreas
Kehler, Gernot
Schmitz, Axel
Witkowski, Rals
Hopach, Michael
Application Number:
JP2002552975A
Publication Date:
June 18, 2008
Filing Date:
December 12, 2001
Export Citation:
Assignee:
Basel, Polyolefin, Gezel Shaft, Mitt, Beschlenktel, Haftung
International Classes:
C08F2/40; C08F2/00; C08F2/38; C08F4/28; C08F4/30; C08F10/00; C08F10/02; C08F110/00; C08F210/02; C08F110/02
Domestic Patent References:
| JP2002500250A | ||||
| JP53055386A | ||||
| JP11171922A | ||||
| JP2002519485A |
Foreign References:
| US3334081 |
Attorney, Agent or Firm:
Satoshi Eto