Title:
SHAPE RETAINING FILM AND PRODUCTION METHOD THEREFOR, LAMINATED FILM·TAPE, SELF-ADHESIVE FILM·TAPE, ANISOTROPIC THERMAL CONDUCTIVE FILM, AND SHAPE RETAINING FIBER
Document Type and Number:
WIPO Patent Application WO/2012/026119
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a shape retaining film excellent in shape retention, and further having high tensile elasticity and good longitudinal tear resistance. The shape retaining film is composed of at least one base material layer containing an ethylene polymer that has the density of 900 kg/m3 or more, and the weight-average molecular weight (Mw)/number-average molecular weight (Mn) of 5 to 20, and at least one soft layer containing a high polymer material. The ethylene polymer is an ethylene homopolymer or an ethylene-α-olefin copolymer in which the content of α-olefin unit having 3 to 6 carbon atoms is less than 2% by weight. The high polymer material has the melting point (Tm2) lower than the melting point (Tm1) of the ethylene polymer, the tensile elasticity of 10 to 50 GPa, and the recovery angle of 65º or less as a result of 180º bending test.
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Inventors:
KAWASUMI TAMIO
ERIGUCHI MICHIO
NISHIKAWA SHIGEO
ERIGUCHI MICHIO
NISHIKAWA SHIGEO
Application Number:
PCT/JP2011/004709
Publication Date:
March 01, 2012
Filing Date:
August 24, 2011
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
KAWASUMI TAMIO
ERIGUCHI MICHIO
NISHIKAWA SHIGEO
KAWASUMI TAMIO
ERIGUCHI MICHIO
NISHIKAWA SHIGEO
International Classes:
D02G3/02; B32B27/32
Foreign References:
| JP2007153361A | 2007-06-21 | |||
| JPH11222256A | 1999-08-17 | |||
| JP2009030219A | 2009-02-12 | |||
| JP2004263326A | 2004-09-24 | |||
| JP2003278026A | 2003-10-02 |
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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Claims: