C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/04 (2006.01) C08K 3/34 (2006.01) C08K 3/36 (2006.01) C08L 67/00 (2006.01)
Patent
CA 2643725
The invention relates to biodegradable nano-polymer compositions, or nanocotnposites, comprising poly(lactic acid) and co-polyester polymer with adipic acid compounded with nanoparticles of a mineral material having a degree of purity of at least 99.9%, preferably 99.99%, selected from the group of silica and magnesium silicate. In addition, the present invention refers to a process for manufacturing the said compositions as well as biodegradable articles made on the basis of such compositions, such as molded, formed and extruded articles.
L'invention concerne des compositions biodégradables de nano-polymère, ou nanocomposites, comprenant du poly(acide lactique) et un polymère de copolyester avec de l'acide adipique mélangé avec des nanoparticules d'un matériau minéral ayant un degré de pureté supérieur ou égal à 99,9 %, de préférence 99,99 %, choisi parmi le groupe comprenant la silice et le silicate de magnésium. La présente invention concerne également un procédé de fabrication desdites compositions, ainsi que des articles biodégradables fabriqués à partir de telles compositions, tels que des articles moulés, formés ou extrudés.
Borden Ladner Gervais Llp
Cereplast Inc.
LandOfFree
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