C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/10 (2006.01) C08L 23/12 (2006.01) D01F 8/06 (2006.01)
Patent
CA 2554103
Fibers and nonwoven materials comprising polymeric blends and polymeric mixtures that incorporate a blend of a first metallocene polypropylene and a second polypropylene are described. The first and second polypropylenes have a predetermined relationship for the melt temperature and the melt flow rate of the individual polypropylenes. Also described are fibers (including bicomponent fibers) and nonwoven materials made from the fibers where the fibers are extruded using the polymeric blends, and/or the polymeric mixtures.
L'invention concerne des matériaux en fibres et nontissés, qui comprennent des mélanges polymériques et des composites polymériques incorporant un composite d'un premier polypropylène métallocène et d'un second polypropylène. Le premier et le second polypropylènes présentent une relation préétablie concernant la température de fusion et le taux de fluidité à chaud des polypropylènes pris séparément. L'invention concerne des fibres (y compris des fibres bicomposées) et des matériaux nontissés réalisés à partir des fibres de l'invention, lesquelles fibres sont extrudées avec les mélanges polymériques et/ou les composites polymériques.
Arora Kelyn Anne
Autran Jean-Philippe Marie
Dimock Stratton Llp
The Procter & Gamble Company
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