Surface treated inorganic particle additive for increasing...

Details Surface treated inorganic particle additive for increasing... Surface treated inorganic particle additive for increasing...

Category

C - Chemistry, Metallurgy

Subcategory

08

Subsubcategory

K

IPC codes

C08K 9/04 (2006.01)

Type

Patent

Patent number

CA 2709269

Description

A bioplastic composition comprising a biopolymer containing from 10 - 40 wt% of coated inorganic particles; the particles being coated with one or more of fatty acids, fatty acid derivatives, rosins, rosinates, polyolefin based waxes, oligomers and mineral oils, and combinations thereof has improved stiffness and toughness and also has improved crystallisation kinetics rendering it useful for extrusion, injection moulding and thermoforming.

L'invention concerne une composition bioplastique comprenant un biopolymère contenant de 10 à 40 % en poids de particules inorganiques enrobées, les particules étant enrobées par un ou plusieurs acides gras, dérivés d'acides gras, colophanes, résinates, cires à base de polyoléfine, oligomères et huiles minérales, et des combinaisons de ceux-ci. La composition présente une meilleure rigidité et une meilleure ténacité et a également une meilleure cinétique de cristallisation, ce qui la rend utile pour l'extrusion, le moulage par injection et le thermoformage.

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