Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-09-28
2008-12-02
Lipman, Bernard (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S017000, C524S427000, C524S451000, C524S584000
Reexamination Certificate
active
07459492
ABSTRACT:
This invention reveals polypropylene composites to be used in the automotive, electronics, packaging and textile industries, which comprises a polypropylene homopolymer in a proportion ranging from 10 to 60% by weight, a natural reinforcement based on eggshells, and an antioxidant. This invention also reveals a natural reinforcement produced from eggshells obtained as an agroindustrial waste, the process to obtain said composite, and the process to obtain such reinforcement. By means of this invention, polypropylene composites using the natural reinforcement are obtained that have improved mechanical and thermal behavior when compared to polypropylene composites using traditional mineral reinforcements.
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Arias Bautista José Luis
Mehrdad Yazdani Pedram
Quijada Abarca Juan Raúl
Toro Estay Patricio Fernando
Lipman Bernard
Merchant & Gould P.C.
Universidad de Chile
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