CONDUCTIVE/ABSORBTIVE SHEET MATERIALS WITH ENHANCED PROPERTIES
First Claim
Patent Images
1. An electrically conductive/electromagnetic energy absorptive sheet material comprisingnonconductive fibers;
- andconductive/absorptive fibers or particles sufficient to give useful conductive/absorptive properties, wherein said conductive/absorptive fibers or particles are interspersed with or mixed together with said nonconductive fibers.
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Abstract
An electrically conductive/electromagnetic energy absorptive sheet material is provided comprising cellulosic fibers mixed with conductive/absorptive fibers or particles. The material may have additional useful properties such as compressibility, biodegradability, and fire retardance.
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Citations
85 Claims
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1. An electrically conductive/electromagnetic energy absorptive sheet material comprising
nonconductive fibers; - and
conductive/absorptive fibers or particles sufficient to give useful conductive/absorptive properties, wherein said conductive/absorptive fibers or particles are interspersed with or mixed together with said nonconductive fibers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A process for making a conductive/absorptive sheet material, comprising:
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providing a slurry of both conductive/absorptive fibers or particles and nonconductive fibers; and applying said slurry onto a porous support and draining the liquid from said slurry to form a mat or web; and
drying said mat or web to form a sheet with conductive/absorptive properties. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A process for making a conductive/absorptive sheet material, comprising:
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providing a first slurry comprising at least nonconductive fibers and optionally conductive/absorptive fibers or particles; providing a second slurry comprising at least conductive/absorptive fibers or particles and optionally nonconductive fibers; applying said first slurry onto a porous support and draining at least a portion of the liquid from said first slurry to form a mat or web; applying said second slurry onto said mat or web; and drying said mat or web to form a sheet with conductive/absorptive properties. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85)
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Specification