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Patent Searching and Data


Title:
FILM COMPRISING HIGH-DENSITY POLYETHYLENE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP2000204176
Kind Code:
A
Abstract:

To produce the subject film without any slackness and without causing whitening even when bent by carrying out a calender processing of a high- density polyethylene having both the ratio of the weight-average molecular weight/number-average molecular weight and the weight-average molecular weight in specific ranges.

This film comprises a high-density polyethylene having the ratio of the weight-average molecular weight/number-average molecular weight within the range of 10-30 and the weight-average molecular weight within the range of 100,000-200,000. The film preferably has 40-600 μm thickness. The film is produced by carrying out a calender processing of the high-density polyethylene at 150-220°C roll temperature and rolling the high-density polyethylene to the thickness. The resultant film can suitably be used as a substrate film for decorative materials, displays, markings or stickers.


Inventors:
IIDA AKIRA
SHITSUPOU KUNIO
MIKI TOMOHIRO
ABE FUSAO
Application Number:
JP14291699A
Publication Date:
July 25, 2000
Filing Date:
May 24, 1999
Export Citation:
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Assignee:
BANDO CHEMICAL IND
International Classes:
C08J5/18; B29C43/24; C08F10/02; (IPC1-7): C08J5/18; B29C43/24; C08F10/02
Attorney, Agent or Firm:
Makino Itsuro