US2005159558A1PendingUtilityA1

Bonding of a fluoropolymer layer to a substrate

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Assignee: 3M INNOVATIVE PROPERTIES COPriority: Oct 31, 2001Filed: Mar 9, 2005Published: Jul 21, 2005
Est. expiryOct 31, 2021(expired)· nominal 20-yr term from priority
Inventors:Ludo GovaertsDirk H. C. ArrenTatsuo FukushiWilliam D. CoggioKlaus HintzerHarald Kaspar
B32B 27/28C08K 5/54B32B 7/10B32B 1/08Y10T428/1393B32B 25/08
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Claims

Abstract

The present invention comprises a substrate having a fluoropolymer on at least one of its surfaces wherein one of the substrates or the fluoropolymer comprises a hydride function MH wherein M is Si, Ge, Sn or Pb. The invention further comprises articles comprising the substrate and fluoropolymer; a method of bonding the fluoropolymer to the substrate; a fluoropolymer composition that contains the fluoropolymer, a polyhydroxy cure composition, and an organic composition comprising the hydride function MH; a premix that contains the fluoropolymer and the hydride function MH; and a fluoropolymer composition that comprises (a) a thermoplastic fluoropolymer comprising Cl, Brand/or I atoms and (b) an organic compound that comprises the hydride function MH.

Claims

exact text as granted — not AI-modified
1 . Fluoropolymer composition comprising: 
 (a) a thermoplastic melt processible semi-crystalline fluoropolymer comprising chlorine, bromine and/or iodine atoms; and    (b) an organic compound comprising a hydride function MH, wherein M is selected from Si, Ge, Sn and Pb.    
     
     
         2 . A fluoropolymer according to  claim 1  wherein said fluoropolymer is a copolymer of tetrafluoroethylene and/or vinylidene fluoride and one or more comonomers selected from the group consisting of a chlorine containing monomer, ethylene, propylene, hexafluoropropylene, fluorinated vinyl ethers and fluorinated allyl ethers.  
     
     
         3 . A fluoropolymer according to  claim 1  wherein said fluoropolymer is a copolymer of tetrafluoroethylene and/or vinylidene fluoride and one or more comonomers selected from the group consisting of chlorotrifluoroethylene, vinyl chloride, vinylidene chloride, ethylene, propylene, perfluorinated vinyl ethers and hexafluoropropylene.  
     
     
         4 . Fluoropolymer composition comprising: 
 (a) a fluoropolymer;    (b) a cure composition comprising a polyhydroxy compound; and    (c) a silazane.    
     
     
         5 . A fluoropolymer according to  claim 4  wherein said fluoropolymer is a copolymer of tetrafluoroethylene and/or vinylidene fluoride and one or more comonomers selected from the group consisting of a chlorine containing monomer, ethylene, propylene, hexafluoropropylene, fluorinated vinyl ethers and fluorinated allyl ethers.  
     
     
         6 . A fluoropolymer according to  claim 4  wherein said fluoropolymer is a copolymer of tetrafluoroethylene and/or vinylidene fluoride and one or more comonomers selected from the group consisting of chlorotrifluoroethylene, vinyl chloride, vinylidene chloride, ethylene, propylene, perfluorinated vinyl ethers and hexafluoropropylene.  
     
     
         7 . A fluoropolymer according to  claim 4  wherein said silazane is a disilazane corresponding to the formula:  
         H u Si(R f ) 3-u —NR g —SiH u (R h ) 3-u    
       wherein u is 1 or 2, R f  and R h  each independently represents an alkyl group or an aryl group and R g  represents hydrogen, an alkyl group or an aryl group.  
     
     
         8 . A fluoropolymer according to  claim 7  wherein said disilazane is HSi(CH 3 ) 2 —NH—Si(CH 3 ) 2 H.

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