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Title:
SHEET HAVING BENDING LINE AND PLASTIC CASE USING THE SAME
Document Type and Number:
Japanese Patent JP2005035561
Kind Code:
A
Abstract:

To provide a sheet, which eliminates blocking between sheets in a curl removal process, and enables the manufacture of a plastic case by forming a folding line on the sheet, bending the sheet along the folding line, and gluing together the ends of at least two folded sheet faces with a solvent or an adhesive.

A stretch sheet is provided by forming a polylactic acid copolymer mixture, and the folding line is formed on the stretch sheet. The polylactic acid copolymer mixture is given by mixing a first polylactic acid copolymer, in which the content ratio of a D-lactic acid component to the total lactic acid components is less than 5 wt% to more than 95 wt%, with a second polylactic acid copolymer, in which the content ratio of a D-lactic acid component to the total lactic acid components is 5 wt% or more to 95 wt% or less, and the mixture satisfies the inequality of 5≤Da≤8 when the content ratio of the D-lactic acid component to the total lactic acid components contained in the mixture is Da(%).


Inventors:
YOSHIGA NORIO
Application Number:
JP2003000197942
Publication Date:
February 10, 2005
Filing Date:
July 16, 2003
Export Citation:
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Assignee:
MITSUBISHI PLASTICS IND
International Classes:
B65D5/42; B65D65/02; B65D65/46; C08L67/04; C08L101/16; (IPC1-7): B65D5/42; B65D65/02; B65D65/46; C08L67/04
Attorney, Agent or Firm:
Bunji Kamata
Higashio Masahiro
Torii Kazuhisa



 
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