The Nippon Synthetic Chemical Industry Co., Ltd.

Msi Technology Llc.

Soarus, L.l.c.

Mark Pucci

Mitsuzo Shida

John Machonis, Jr

Hideshi Onishi

Mariko Hori

Kuniyasu Kato

Mark R Mueller

A polyvinyl alcohol type resin, which renders possible preparation of a packaging material having high gas barrier property under a high humidity condition even as a monolayer film, is provided. The polyvinyl alcohol (PVA) type resin of the invention has at least a PVA structural unit and also has an alicyclic structural unit in the main chain. A monolayer film containing this PVA type resin and a laminate containing at least one layer comprising this PVA type resin can be used as a packaging material which shows high gas barrier property even under a high humidity condition.

Polyvinyl alcohol type resin, monolayer film and laminate

The present invention provides a resin composition that is added when a multi-layer structure containing hydrolyzed ethylene-vinyl acetate copolymer is reground into a multi-layer structure and a process for preparing a multi-layer structure using the resin composition. Specifically, the present invention relates to a resin composition comprising (A) polyolefin, (B) metal salt of higher fatty acid having 12 to 30 carbon atoms and (C) zeolite. Also, the multi-layer structure is prepared by the process of regrinding by adding the resin composition to a multi-layer structure containing hydrolyzed ethylene-vinyl acetate copolymer.

Resin composition and process for preparing multi-layer structure using the same

Improved packaging films which can be heat sealed and then easily opened when desired are provided. The heat sealable packaging films are prepared from ionomers, acid copolymers, or mixtures thereof which are modified with polypropylene, ethylene vinyl acetate copolymer, and, optionally, polyethylene. The resulting films are heat sealable with a relatively low heat seal initiation temperature and with consistent seal strengths over a relatively broad heat sealing temperature range. The heat seal strength, which is retained over time, can be varied or adjusted to desired values by adjusting the composition of the modified ionomer blend. The seal can be opened in a clean manner (i.e., not stringy). Since the seal whitens upon opening, the film of this invention allows for tamper evident packaging.

Heat sealable films

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Elk Grove Village, IL, United States of America

Mark Pucci