C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/02 (2006.01) B32B 5/16 (2006.01) C08L 23/06 (2006.01) C08L 23/08 (2006.01) C08L 29/04 (2006.01)
Patent
CA 2128579
TITLE LAMINAR ARTICLES FROM A POLYOLEFIN MATRIX, ETHYLENE-VINYL ALCOHOL COPOLYMERS AND A COMPATIBILIZER ABSTRACT OF THE DISCLOSURE The laminar article of the invention comprises a mixture of a polyolefin matrix with a barrier resin of polyethylene-vinyl alcohol copolymer and a compatibilizer selected from an ethylene-ethylenically unsaturated carboxylic acid copolymer such as ethylene methacrylic acid or ethylene acrylic acid, ethylene vinyl acetate, polyethylene vinyl alcohol or mixtures thereof. A process is also claimed for preparing a laminar article with multiple thin, overlapping layers, comprising preparing a melted heterogeneous blend of a polyolefin, an ethylene-vinyl alcohol copolymer, and the above compatibilizer; extending the body of the melt; and cooling the extended body to below the melting point of the polyolefin.
Scott Robert William
Torradas Jose Maria
Bennett Jones Llp
E. I. Du Pont de Nemours And Company
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