Kureha Corporation

Yoshikazu Amano

Hiroyuki Sato

Yukichika Kawakami

Kenichi Ishii

Kazuyuki Yamane

Takashi Sato

Fuminori Kobayashi

Michihiro Sato

Shinichi Sekine

Tadashi Umetsu

Asako Saeki

Makoto Unino

Takayuki Seki

Makoto Hideoka

A center portion () of a V-shaped cutter blade () includes center large teeth () and center middle teeththe tooth height of which is less than the tooth height of the center large teeth (). End portions () of the cutter blade () each include first end teeth () and second end teeth () the tooth height of which is less than the tooth height of the first end teeth (). Tooth tops of the first end teethof each end portion () are located on a straight line (L), which extends through tooth tops of the center large teeth () located on one of the right half and the left half of the center portion ().

Cutter blade for packing container and packing container

In the production of an aliphatic polyester by ring-opening polymerization of a cyclic ester, at least a latter period of polymerization is proceeded with by way of solid-phase polymerization, and the resultant aliphatic polyester is subjected to removal of residual cyclic ester. As a result, an aliphatic polyester with a minimized content of residual monomer is obtained.

Process for producing aliphatic polyester reduced in residual cyclic ester content

A wrapping film container, including: an elongated container body for housing therein a rolled self-tacky wrapping film, an opening provided to the container body along a longitudinal direction of the container body for pulling out a portion of the wrapping film therethrough, cutting means for cutting the pulled-out portion of the wrapping film and a film-holding section provided on a front face of the container body for preventing re-winding to an inside of the container, wherein the film-holding section comprises a laminate structure including a pressure-sensitive adhesive layer, a substrate layer, an adhesive layer and a self-tacky film layer, disposed sequentially from the container body side. The film-holding section is efficiently formed on the front face of the container body by using a label for forming film-holding section of a wrapping film container having a laminate structure including a self-tacky film layer, an adhesives layer, a base material layer, a pressure-sensitive adhesive layer and a separator layer, disposed sequentially from one side thereof, and exhibits a stable and consistent film-holding power.

Wrap film container and label adapted for use for the container and used for film holding section

Growing community of inventors

Tokyo, Japan

Yoshikazu Amano