Environmentally degradable polymeric composition and method for obtaining an environmentally degradable polymeric composition
AssigneePhb Industrial S.A.
InventorsJefter Fernandes Nascimento, Wagner Mauricio Pachekoski, Jose Augusto Marcondes Agnelli
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Abstract
The environmentally degradable polymeric composition is obtained from the biodegradable polymers poly (hydroxybutyrate)-PHB and copolymers thereof and poly (lactic acid)-PLA and, optionally, at least one of the additives defined by: plasticizer of natural origin, such as natural fibers; natural fillers; thermal stabilizer; nucleant; compatibilizer; surface treatment agent; and processing aid.
Claims13
Environmentally degradable polymeric composition, characterized in that it comprises a biodegradable polymer, defined by poly (hydroxybutyrate)-PHB or copolymers thereof;
- a poly (lactic acid)-PLA;
- and optionally at least one of the additives defined by:
- plasticizer of natural origin, such as natural fibers;
- and natural fillers.
Method for obtaining an environmentally degradable polymeric composition, formed by poly (hydroxybutyrate)-PHB or its PHBV copolymers;
- and a Poly (lactic acid)-PLA, characterized in that it comprises the steps of:
- a) pre-mixing the constituent materials of the formulation of interest;
- b) drying said materials;
- extruding the pre-mixed materials so as to obtain granulation thereof;
- and c) injection molding the extruded and granulated material for manufacturing of injected packages and other injected products.
Application of the environmentally degradable polymeric composition formed from the mixture of poly (hydroxybutyrate)-PHB/Poly (lactic acid)-PLA, in the manufacture of injected packages for food articles, injected packages for cosmetics, tubes, technical pieces and several injected products.
Dependencies are inferred from the claim text.