Electrically conductive compositions and methods for producing same
First Claim
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1. An electrically conductive composition comprising:
- a matrix comprising substantially a first thermoplastic component selected from polybutylene terephthalate, polycarbonate and polycarbonate acrylonitrile butadiene styrene;
a second thermoplastic component having a higher polarity than that of said first thermoplastic component, said second component encapsulating a plurality of fibers forming a network of encapsulated fibers within said matrix; and
a carbon component preferentially attracted to said second component so as to make said network an electrically conductive network within said matrix, said carbon component located at the interface between said second thermoplastic component and said matrix wherein said carbon component is carbon black and is present in an amount less than 10 parts per hundred.
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Abstract
An electrically conductive composition and a method for producing same, for example by injection molding. The composition includes a matrix comprising substantially a first thermoplastic component, a second thermoplastic component having a higher polarity than that of the first thermoplastic component, the second component encapsulating a plurality of fibers forming a network of encapsulated fibers within the matrix, and a carbon component preferentially attracted to the second component so as to make said network an electrically conductive network within the matrix.
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Citations
24 Claims
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1. An electrically conductive composition comprising:
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a matrix comprising substantially a first thermoplastic component selected from polybutylene terephthalate, polycarbonate and polycarbonate acrylonitrile butadiene styrene;
a second thermoplastic component having a higher polarity than that of said first thermoplastic component, said second component encapsulating a plurality of fibers forming a network of encapsulated fibers within said matrix; and
a carbon component preferentially attracted to said second component so as to make said network an electrically conductive network within said matrix, said carbon component located at the interface between said second thermoplastic component and said matrix wherein said carbon component is carbon black and is present in an amount less than 10 parts per hundred. - View Dependent Claims (2, 3, 4, 5)
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6. An electrically conductive composition comprising;
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a matrix comprising substantially a first thermoplastic component;
a second thermoplastic component having a higher polarity than that of said first thermoplastic component, said second component encapsulating a plurality of fibers forming a network of encapsulated fibers within said matrix;
said second component being acrylonitrile butadiene styrene anda carbon component preferentially attracted to said second component so as to make said network an electrically conductive network within said matrix, said carbon component located at the interface between said second thermoplastic component and said matrix wherein said carbon component is carbon black and is present in an amount less than 10 parts per hundred. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An electrically conductive composition comprising:
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a matrix comprising substantially a first thermoplastic component;
a second thermoplastic component having a higher polarity an that of said first thermoplastic component, said second component encapsulating filler forming a network of encapsulated filler particles within said matrix; and
a carbon component preferentially attracted to said second component so as to make said network an electrically conductive network within said matrix, said carbon component located at the interface between said second thermoplastic component and said matrix wherein said carbon component is carbon black and is present in an amount less than 10 parts per hundred. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. An electrically conductive composition comprising:
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a matrix comprising substantially a first thermoplastic component;
a second thermoplastic component having a higher polarity than that of said first thermoplastic component, said second component encapsulating a plurality of organic fibers forming a network of encapsulated organic fibers within said matrix; and
a carbon component preferentially attracted to said second component so as to make said network an electrically conductive network within said matrix, said carbon component located at the interface between said second thermoplastic component and said matrix wherein said carbon component is carbon black and is present in an amount less than 10 parts per hundred. - View Dependent Claims (22, 23, 24)
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Specification
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Current AssigneeCarmel Olefins, Ltd. (Oil Refineries Ltd.)
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Original AssigneeCarmel Olefins, Ltd. (Oil Refineries Ltd.)
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InventorsTchoudakov, Rosa, Vaxman, Anita, Siegmann, Arnon, Narkis, Moshe
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Primary Examiner(s)KOPEC, MARK T
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Application NumberUS09/244,249Time in Patent Office1,238 DaysField of Search252/54, 264/105, 423/449.1, 524/495US Class Current252/511CPC Class CodesC08F 283/00 Macromolecular compounds ob...C08L 23/04 Homopolymers or copolymers ...C08L 23/0861 Saponified vinylacetateC08L 23/10 Homopolymers or copolymers ...C08L 25/04 Homopolymers or copolymers ...C08L 25/06 PolystyreneC08L 25/18 Homopolymers or copolymers ...C08L 2666/02 Organic macromolecular comp...C08L 2666/04 Macromolecular compounds ac...C08L 2666/06 Homopolymers or copolymers ...C08L 2666/14 Macromolecular compounds ac...C08L 2666/20 Macromolecular compounds ha...C08L 2666/24 Graft or block copolymers a...C08L 29/04 Polyvinyl alcohol; Partiall...C08L 55/02 ABS [Acrylonitrile-Butadien...C08L 77/00 Compositions of polyamides ...H01B 1/24 the conductive material com...
