Pactiv Corporation

Topas Advanced Polymers Gmbh

Hydromer, Inc.

Paul N Chen

William P Belias

Randy Douglas Jester

Steven P Long

Rainer Gruening

Thomas A White

Barbara Canale-Schmidt

Vitaly Falevich

Karen Merritt

Xin Qu

The present invention relates to polymer structures such as thermoplastic films having improved aroma barrier properties and methods for making the polymeric structures, which may be in the form of a resealable container. Aroma barrier is improved by incorporating a barrier layer of polymeric material including at least about 10 mole percent of polymerized cyclo-olefin moieties.

Thermoplastic aroma barrier incorporating cyclo-olefins

A fastener for a plastic bag comprising a male track including a male profile and an optional first fin extending from the male profile and a female track including a female profile and an optional second fin extending from the female profile. At least one of the first and second fins and/or one of the male and female profiles comprises a cyclic olefin copolymer or a combination of a cyclic olefin copolymer and one or more additional polymers. The cyclic olefin copolymer has a glass transition temperature, T , of greater than about 20&deg; C. as determined by ASTM D3418. The cyclic olefin copolymer may comprise from about 10 to about 90 mol. % norbornene. The additional polymer is selected from a polyolefinic resin, an engineering resin, and a combination thereof.

Fins and profiles for plastic bags

Growing community of inventors

Canandaigua, NY, United States of America

Paul N Chen