C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 67/02 (2006.01) C08L 67/04 (2006.01)
Patent
CA 2641921
The present invention refers to a polymeric blend for the preparation of environmentally degradable materials, said blend comprising biodegradable polymers, polyhydroxybutyrate - PHB or copolymers thereof and poly (butylene adipate/butylene terephthalate) aliphatic-aromatic copolyester and at least one additive. The present invention further refers to the process for obtaining said blend, by applying the extrusion technique to obtain an adequate morphology in the distribution, dispersion and interaction of the polymers, so as to obtain compatible polymeric blends, allowing the granules of the produced polymeric blends to be utilized to manufacture several injection molded products.
La présente invention concerne un mélange polymérique destiné à la préparation de matériaux biodégradables. Le mélange comprend des polymères biodégradables, un polyhydroxybutyrate (PHB) ou des copolymères de ce dernier, et un copolyester aliphatique-aromatique de poly(butylène adipate/butylène téréphtalate) et au moins un additif. L'invention concerne également la méthode de production dudit mélange, mise en oeuvre par la technique d'extrusion permettant d'obtenir une morphologie appropriée en ce qui concerne la distribution, la dispersion et l'intéraction des polymères, ce qui donne des mélanges polymériques compatibles et permet d'utiliser les granules des mélanges polymériques obtenus pour fabriquer divers produits moulés par injection.
Agnelli Jose Augusto Marcondes
Nascimento Jefter Fernandes
Pachekoski Wagner Mauricio
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Phb Industrial S.a.
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