Coating grade polyactide and coated paper, preparation and...

Details Coating grade polyactide and coated paper, preparation and... Coating grade polyactide and coated paper, preparation and...

D - Textiles, Paper

21

H

D21H 19/28 (2006.01) C09D 167/04 (2006.01) C08G 63/91 (2006.01) D21H 23/46 (2006.01) D21H 27/10 (2006.01)

Patent

CA 2291172

A coated paper product including a paper layer and a polymer layer, wherein the polymer layer includes a polylactide polymer composition having a ratio of Mz to Mn of greater than about 6. The polymer composition, when melted, exhibits a die swell of greater than about 1.25 for a melt flow index of greater than about 2. Polymer lactide compositions, methods of manufacturing the polymer composition and the coated paper product, and articles produced therefrom are also described.

La présente invention concerne un produit de papier enduit comprenant une couche de papier et une couche polymère, laquelle couche polymère est constituée d'une composition polymère à base de polyactide dont le rapport Mz/Mn est supérieur à environ 6. La composition polymère, lorsqu'elle est fondue, présente un gonflement de l'extrudât supérieur à environ 1,25 pour un indice de fluidité supérieur à environ 2. La présente invention concerne également des compositions de lactide polymère, des procédés de fabrication de la composition polymère, du produit de papier enduit et des articles produits à partir de ceux-ci.

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