US Patent 8240484 High loft spunbonded web
Patent 8240484 was granted and assigned to 3M on August, 2012 by the United States Patent and Trademark Office.
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Patent abstract
Herein are disclosed high loft spunbonded webs that are substantially free of crimped fibers and gap-formed fibers. The webs exhibit a solidity of from less than 8.0% to about 4.0% and a ratio of Effective Fiber Diameter to Actual Fiber Diameter of at least 1.40. Also disclosed are methods of making such webs.
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Patent Inventor Names
Andrew R. Fox0
John D. Stelter0
Jonathan M Lise0
Michael R. Berrigan0
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US Patent 08240484 High loft spunbonded web US Patent 8240484 High loft spunbonded web
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Patent Number
08240484
Patent Number
8240484
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US Patent 08240484 High loft spunbonded web
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Is a
Current assignee
Patent jurisdiction
Patent number
08240484
Date of patent
August 14, 2012
Patent application number
13420901
Date Filed
March 15, 2012
Patent primary examiner
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