VOID-CONTAINING HEAT-SHRINKABLE POLYESTER FILM AND PROCESS FOR PRODUCTION THEREOF

WIPO Patent Application WO/2010/143737

A1

Disclosed is a void-containing heat-shrinkable polyester film which is composed of at least two layers, wherein at least one of the layers is a polyester resin layer comprising a cyclic polyolefin resin and containing voids. The film has an apparent specific gravity of less than 1.00 and has specified heat shrinking properties and mechanical properties. Also disclosed is a void-containing heat-shrinkable polyester film as mentioned above, which exhibits specified cuttability along a perforation. Further disclosed is a process for producing a void-containing heat-shrinkable polyester film as mentioned above.

YAMAMOTO Shigetomo (344 aza-Maehata, Oaza-Kotsu, Inuyama-sh, Aichi 08, 〒4848508, JP)
山本　茂知 (〒08 愛知県犬山市大字木津字前畑３４４番地　東洋紡績株式会社　内 Aichi, 〒4848508, JP)
HARUTA Masayuki (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)
春田　雅幸 (〒50 福井県敦賀市東洋町１０番２４号　東洋紡績株式会社　内 Fukui, 〒9148550, JP)

JP2010/060022

December 16, 2010

June 14, 2010

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TOYO BOSEKI KABUSHIKI KAISHA (2-8 Dojima Hama 2-chome, Kita-ku Osaka-sh, Osaka 30, 〒5308230, JP)
東洋紡績株式会社 (〒30 大阪府大阪市北区堂島浜二丁目２番８号 Osaka, 〒5308230, JP)
YAMAMOTO Shigetomo (344 aza-Maehata, Oaza-Kotsu, Inuyama-sh, Aichi 08, 〒4848508, JP)
山本　茂知 (〒08 愛知県犬山市大字木津字前畑３４４番地　東洋紡績株式会社　内 Aichi, 〒4848508, JP)
HARUTA Masayuki (10-24 Toyo-cho, Tsuruga-sh, Fukui 50, 〒9148550, JP)

B32B27/36; B29C47/08; B29C55/14; B29C61/06; B29K67/00; B29K105/02; B29L7/00

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