Title:
HEAT SHRINKABLE POLYOLEFIN FILM AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/075705
Kind Code:
A1
Abstract:
A heat shrinkable polyolefin film that is high in the shrinkability in the longitudinal
direction as its main shrinkage direction, excelling in shrink finish performance,
perforated line openability and thermal blocking resistance. The main shrinkage
direction of the heat shrinkable polyolefin film agrees with the longitudinal
direction. Regulation is made so that the hot water thermal shrinkage ratio
in the longitudinal direction measured after treatment in 90°C hot water
for 10 sec, hot water thermal shrinkage ratio in the width direction measured
after treatment in 90°C hot water for 10 sec, rectangular tear strength
in the width direction measured after 10% shrinkage in the longitudinal direction
in 80°C hot water, heat-resistant peel strength measured in application
of a pressure of 0.4 MPa for 90 sec while heating at 90°C and 60°-80°C
hot water thermal shrinkage ratio fall within respective specified ranges.
Inventors:
YAMAMOTO SHIGETOMO (JP)
MUKOYAMA YUKINOBU (JP)
INAGAKI KYOKO (JP)
KAWAI KENJI (JP)
HASHIMOTO MASATOSHI (JP)
NOSE KATSUHIKO (JP)
MUKOYAMA YUKINOBU (JP)
INAGAKI KYOKO (JP)
KAWAI KENJI (JP)
HASHIMOTO MASATOSHI (JP)
NOSE KATSUHIKO (JP)
Application Number:
PCT/JP2007/074399
Publication Date:
June 26, 2008
Filing Date:
December 19, 2007
Export Citation:
Assignee:
TOYO BOSEKI (JP)
YAMAMOTO SHIGETOMO (JP)
MUKOYAMA YUKINOBU (JP)
INAGAKI KYOKO (JP)
KAWAI KENJI (JP)
HASHIMOTO MASATOSHI (JP)
NOSE KATSUHIKO (JP)
YAMAMOTO SHIGETOMO (JP)
MUKOYAMA YUKINOBU (JP)
INAGAKI KYOKO (JP)
KAWAI KENJI (JP)
HASHIMOTO MASATOSHI (JP)
NOSE KATSUHIKO (JP)
International Classes:
B29C55/14; B29C61/06; B32B27/32; C08J5/18; B29K23/00; B29K105/02; B29L7/00; B29L9/00
Foreign References:
| JP2001162725A | 2001-06-19 | |||
| JP2005068317A | 2005-03-17 | |||
| JP2005047959A | 2005-02-24 | |||
| JP2006272775A | 2006-10-12 | |||
| JP2004074426A | 2004-03-11 |
Other References:
"Polymer Analysis Handbook", 1995, KINOKUNIYA COMPANY LTD., pages: 615 - 617
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