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Metallizable, essentially isotropic polymeric substrates well adopted for printed circuits

  • US 4,541,894 A
  • Filed: 05/29/1984
  • Issued: 09/17/1985
  • Est. Priority Date: 05/27/1983
  • Status: Expired due to Term
First Claim
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1. An essentially isotropic metallizable polymeric substrate, comprising a fibrous organic polymer matrix bonded together with a cured imido prepolymer and including particulate filler material distributed therethrough, said substrate having low moisture absorption ranging from 0.03 to 0.5% and a coefficient of thermal expansion, at a temperature ranging from -65°

  • C. to 125°

    C., which ranges from 3 to 8×

    10-6 cm/cm/°

    C.

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