Plastic and nonmetallic article shaping or treating: processes – Direct application of electrical or wave energy to work – Extrusion molding
Reexamination Certificate
2007-05-24
2011-11-29
Tentoni, Leo B (Department: 1742)
Plastic and nonmetallic article shaping or treating: processes
Direct application of electrical or wave energy to work
Extrusion molding
C264S140000, C264S211000, C264S211230, C264S232000, C264S234000, C264S483000
Reexamination Certificate
active
08066934
ABSTRACT:
The present invention relates to a process of production of polyamide compounds with natural fibers and polyamide compounds with natural fibers, establishes the fact of using natural fiber to obtain a compound with mechanical properties close to the one obtained with inorganic loads by means of continuous process with extrusion and molding by injection process; the processes presented allows the obtainment, by means of injection, of finished products with precise dimensional and complex features; the fact that the compound with natural Curauá fiber presenting suitable mechanical properties combined to a lesser density than the compound with inorganic load is interesting to the automotive industry as vehicles manufactured with lighter parts consume less fuel.
REFERENCES:
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patent: 2 781 492 (2000-01-01), None
Herman Winata, et al.;Applications of Polyamide/Cellulose Fiber/Wollastonite Composites for Microcellular Injection Molding; ANTEC; 2003; pp. 701-705 (XP-002471423).
Alexandre Gomes, et al.;Effects of Alkali Treatment to Reinforcement on Tensile Properties of Curaua Fiber Green Composites; JSME International Journal; 2004; pp. 541-546; Series A, vol. 47, No. 4 (XP-002471424).
Johan Felix, et al.;Plasma Modification of Cellulose Fibers: Effects on Some Polymer Composite Properties; Journal of Applies Polymer Science; 1994; pp. 285-295; vol. 51 (XP-002471425).
Prof. Dr. Ryszard Kozlowski;Potential and Diversified Uses of Green Fibres; 3rdInternational Wood and Natural Fibre Composites Symposium; Sep. 19-20, 2000; pp. 2-1-2-14; Kassel, Germany (XP-002471426).
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da Silva Spinacé Márcia Aparecida
de Paoli Marco Aurélio
dos Santos Paulo Aparecido
Girioli João Carlos
Godoi Fermoselli Karen Kely
Cantor & Colburn LLP
Sabic Innovative Plastics South America
Tentoni Leo B
Universidade Estadual de Campinas
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