(19)
(11) EP 0 175 635 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.09.1986 Bulletin 1986/36

(43) Date of publication A2:
26.03.1986 Bulletin 1986/13

(21) Application number: 85630151

(22) Date of filing: 05.09.1985
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 11.09.1984 US 649348

(71) Applicant: ESSEX GROUP INC.
 ()

(72) Inventors:
  • Doyle, Arthur F.
     ()
  • Sklarski, Dennis J.
     ()

   


(54) High density moisture resistant mica cylinders


(57) High density, moisture resistant, high temperature stable mica tubular structures and methods of making the same are described. The structures comprise one or more mica paper layers impregnated with a polysiloxane binder, said binder containing an organic titanate and a metal naphthenate. Also disclosed are methods for making such tubular mica composite structures by impregnating mica papers with such composition, rolling the impregnated papers into cylindrical form and curing the cylinder.






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