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Coating liquid for forming porous silica coating, coated substrate and short fiber silica

  • US 6,083,314 A
  • Filed: 08/06/1998
  • Issued: 07/04/2000
  • Est. Priority Date: 08/07/1997
  • Status: Expired due to Term
First Claim
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1. A coating liquid for forming porous silica coating, comprising a product of reaction between:

  • a short fiber silica, anda hydrolyzate of an alkoxysilane represented by the below indicated general formula [1] or a halogenated silane represented by the below indicated general formula [2];

    
    
    space="preserve" listing-type="equation">X.sub.n Si(OR).sub.4-n [ 1],
    
    
    space="preserve" listing-type="equation">X.sub.n SiX'"'"'.sub.4-n [ 2], wherein X represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group;

    R represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group;

    X'"'"' represents a chlorine atom or a bromine atom; and

    n is an integer of 0 to 3.

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