Nova Chemicals (international) S.a.

Denny Paul Sauvageau

P Scott Chisholm

Tony Tikuisis

Norman Dorien Joseph Aubee

Patrick Lam

Douglas Checknita

Sarah Marshall

Tingting Yu Chuang

Ian Gibbons

Laura Elaine Ellis

Barrier films are prepared from a blend of two high density polyethylene blend components and a high performance organic nucleating agent. The two high density polyethylene blend components have substantially different melt indices. Large reductions in the moisture vapor transmission rate of the film are observed in the presence of the nucleating agent when the melt indices of the two blend components have a ratio of greater than 10/1. The resulting barrier films are suitable for the preparation of packaging for dry foods such as crackers and breakfast cereals.

Barrier film for food packaging

This invention provides a process for the stabilization of thermoplastic polyolefins during melt processing operations. The stabilizer package of this invention is 'phenol free' and must contain at least one aryl monophosphite and at least one diphosphite. The process of this invention is especially suitable for the manufacture of polyethylene film.

Phenol free stabilization of polyethylene film

Growing community of inventors

Edmonton, Canada

Denny Paul Sauvageau