US2007248823A1PendingUtilityA1

Fluorine containing copolymer fiber and fabric

37
Assignee: DAIKIN IND LTDPriority: Apr 24, 2006Filed: Apr 23, 2007Published: Oct 25, 2007
Est. expiryApr 24, 2026(expired)· nominal 20-yr term from priority
Inventors:Chris MooreKatsuyoshi Kubo
Y10T428/2975D01F 6/32
37
PatentIndex Score
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Claims

Abstract

A fiber contains a fluorine-containing copolymer such as EFEP. The fiber is preferably a non-hollow monofilament fiber, and the fluorine-containing copolymer preferably has a melt index (MI) below 100. A fabric contains a fluorine-containing copolymer such as EFEP. The fabric preferably includes non-hollow monofilament fibers, which contain the fluorine-containing copolymer, and the fluorine-containing copolymer preferably has a melt index (MI) below 100.

Claims

exact text as granted — not AI-modified
1 . A non-hollow, monofilament fiber consisting essentially of a fluorine containing copolymer having a melt index (MI) of less than 100. 
   
   
       2 . The non-hollow fiber as set forth in  claim 1 , wherein
 the fluorine containing copolymer has a melting point below 240° C.   
   
   
       3 . The non-hollow fiber as set forth in  claim 2 , wherein
 the fluorine containing copolymer has a melting point below 200° C.   
   
   
       4 . The non-hollow fiber as set forth in  claim 1 , wherein
 the fluorine containing copolymer is a fluorine-containing ethylenic polymer (A) represented by the general formula   
     
       
         
         
             
             
         
       
       where l, m, and n are natural numbers and X and Y are functional groups. 
     
   
   
       5 . The non-hollow fiber as set forth in  claim 4 , wherein
 the functional groups X and Y are carboxyl groups.   
   
   
       6 . The non-hollow fiber as set forth in  claim 4 , wherein
 at least one of the functional groups X and Y includes at least one of a carbonate group and a carboxyl halide group.   
   
   
       7 . The non-hollow fiber as set forth in  claim 6 , wherein
 the functional groups X and Y include a carbonate group and a carboxyl halide group.   
   
   
       8 . The non-hollow fiber as set forth in  claim 7 , wherein
 the carbonate group is represented by the formula:
   —OC(═O)O—R 
   wherein R is one of the group consisting of a hydrogen atom; an alkyl group with 1-20 carbon atoms; an alkyl group with 2-20 carbon atoms and an ether coupling; and an element of the first, second, or the seventh group.   
   
   
       9 . The non-hollow fiber as set forth in  claim 1 , wherein
 the fiber is a staple fiber.   
   
   
       10 . The non-hollow fiber as set forth in  claim 1 , wherein
 the fiber is a filament fiber.   
   
   
       11 . A fabric comprising:
 non-hollow, monofilament fibers consisting essentially of a fluorine containing copolymer having a melt index (MI) less than 100.   
   
   
       12 . The fabric as set forth in  claim 11 , wherein
 the fluorine containing copolymer has a melting point below than 240° C.   
   
   
       13 . The fabric as set forth in claim  112 , wherein
 the fluorine containing copolymer has a melting point below than 200° C.   
   
   
       14 . The fabric as set forth in  claim 11 , wherein
 the fluorine containing copolymer is a fluorine-containing ethylenic polymer (A) represented by the general formula   
     
       
         
         
             
             
         
       
     
     where l, m, and n are natural numbers and X and Y are functional groups. 
   
   
       15 . The fabric as set forth in  claim 14 , wherein
 the functional groups X and Y are carboxyl groups.   
   
   
       16 . The fabric as set forth in  claim 14 , wherein
 at least one of the functional groups X and Y includes at least one of a carbonate group and a carboxyl halide group.   
   
   
       17 . The fabric as set forth in  claim 16 , wherein
 the functional groups X and Y include a carbonate group and a carboxyl halide group.   
   
   
       18 . The fabric as set forth in  claim 17 , wherein
 the carbonate group is represented by the formula:
   —OC(═O)O—R 
   wherein R is one of the group consisting of a hydrogen atom; an alkyl group with 1-20 carbon atoms; an alkyl group with 2-20 carbon atoms and an ether coupling; and an element of the first, second, or the seventh group.   
   
   
       19 . The fabric as set forth in  claim 11 , wherein
 the fabric is a woven fabric.   
   
   
       20 . The fabric as set forth in  claim 11 , further comprising
 a non-fluoropolymer material.   
   
   
       21 . The fabric as set forth in  claim 20 , wherein
 the fibers consisting essentially of the fluorine containing copolymer are at least partially disposed at an outer surface of the fabric.   
   
   
       22 . The fabric as set forth in  claim 20 , wherein
 the fabric is a non-woven fabric.   
   
   
       23 . The fabric as set forth in  claim 11 , wherein
 the fabric is a non-woven fabric.   
   
   
       24 . The fabric as set forth in  claim 23 , wherein
 the fibers consisting essentially of the fluorine containing copolymer are melt-blown fibers.   
   
   
       25 . The fabric as set forth in  claim 24 , wherein
 the fibers consisting essentially of the fluorine containing copolymer have a melting point below 240° C.   
   
   
       26 . The fabric as set forth in  claim 25 , wherein
 the fibers consisting essentially of a fluorine containing copolymer have a melting point below 200° C.   
   
   
       27 . The fabric as set forth in  claim 24 , further comprising
 a non-fluoropolymer material.   
   
   
       28 . The fabric as set forth in  claim 27 , wherein
 the fabric includes a plurality of fibers consisting essentially of the non-fluoropolymer material.   
   
   
       29 . The fabric as set forth in  claim 23 , wherein
 the fluorine containing copolymer is represented by the general formula   
     
       
         
         
             
             
         
       
     
     where l, m, and n are natural numbers and X and Y are functional groups. 
   
   
       30 . The fabric as set forth in  claim 11 , wherein
 all fibers of the fabric consist essentially of the fluorine containing copolymer.   
   
   
       31 . A fiber containing EFEP. 
   
   
       32 . The fiber as set forth in  claim 31 , wherein
 the fiber is a non-hollow fiber.   
   
   
       33 . The fiber as set forth in  claim 32 , wherein
 the fiber is a monofilament fiber consisting essentially of EFEP.   
   
   
       34 . A fabric containing EFEP. 
   
   
       35 . The fiber as set forth in  claim 34 , wherein
 the fabric includes fibers containing EFEP.   
   
   
       36 . The fiber as set forth in  claim 35 , wherein
 the fibers are non-hollow fibers.   
   
   
       37 . The fiber as set forth in  claim 36 , wherein
 the fibers are monofilament fibers consisting essentially of EFEP.   
   
   
       38 . The fiber as set forth in  claim 35 , wherein
 the fibers containing EFEP are melt blown fibers.

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