Title:
METHOD FOR SEPARATING SLIGHT AMOUNT OF CRYSTALLINE POLYOLEFIN DISSOLVED IN SOLVENT
Document Type and Number:
Japanese Patent JP3437607
Kind Code:
B2
Abstract:
PURPOSE: To enable a given crystalline polyolefin dissolved in a solvent to be stably separated from the solvent over long without cooling the solution, by passing the solution through a layer of an irregularly packed packing material under specific conditions to deposit the polyolefin on the packing material.
CONSTITUTION: A crystalline polyolefin having a weight-average mol.wt of 1,000 or higher (e.g. ultra-high-mol.wt. PE) and dissolved in a solvent (e.g. n- decane) is passed through an irregularly packed packing material (e.g. a layer of household scrubbing stainless-steel brushes) at the shear rate represented by the equation.
Inventors:
Kozo Hirano
Application Number:
JP22555193A
Publication Date:
August 18, 2003
Filing Date:
September 10, 1993
Export Citation:
Assignee:
Mitsui Chemicals, Inc.
International Classes:
C08F6/06; B01D9/02; C08F6/12; (IPC1-7): C08F6/12; B01D9/02
Domestic Patent References:
| JP4713367B1 | ||||
| JP4222053B1 | ||||
| JP4224176B1 |
Attorney, Agent or Firm:
Yukio Shoji