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Title:
METHOD FOR MANUFACTURING INTERPOLYMER AND PRODUCT MANUFACTURED THEREFROM
Document Type and Number:
Japanese Patent JP2008179825
Kind Code:
A
Abstract:

To provide an interpolymer which can have a relatively higher level of long chain branching while maintaining a relatively narrow molecular weight distribution, i.e., a MWD less than about 6 and which is an olefinic polymer exhibiting processability similar to or better than a LDPE but having physical characteristics similar to those of a metallocene-catalyzed polymer.

A polymerization process comprises contacting one or more olefinic monomers or co-monomers in the presence of at least one high molecular weight catalyst and at least one low molecular weight catalyst in a single reactor, and effectuating the polymerization of the olefinic co-monomers in the reactor to obtain an olefinic polymer. Preferably, both catalysts have the ability to incorporate a substantially similar amount of co-monomers in the olefin polymer.


Inventors:
STEVENS JAMES C
VANDERLENDE DANIEL D
Application Number:
JP2008056619A
Publication Date:
August 07, 2008
Filing Date:
March 06, 2008
Export Citation:
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Assignee:
DOW GLOBAL TECHNOLOGIES INC
International Classes:
C08F10/00; C08F2/00; C08F4/02; C08F4/64; C08F4/646; C08F4/659; C08F4/6592; C08F210/16; C08F290/04; C08L23/04; C08L23/06; C08L23/08
Domestic Patent References:
JP4249984B22009-04-08
Other References:
JPN6012047620; 東京高等裁判所における判決(昭和48(行ケ)第27号,昭和53年5月31日判決言渡)
JPN6012047621; 東京高等裁判所における判決(昭和62(行ケ)第97号,平成2年4月24日判決言渡)
JPN6012043295; 東京高等裁判所における判決 昭和47年3月31日言渡, 昭和41(行ケ)第177号
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Yasuhito Suzuki