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Method and means for reducing undesirable effects of dirt particles on a flexible record device

  • US 4,335,173 A
  • Filed: 09/22/1980
  • Issued: 06/15/1982
  • Est. Priority Date: 09/22/1980
  • Status: Expired due to Term
First Claim
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1. In a flexible record device comprising a flexible support layer having a recording layer on one side thereof,the improvement wherein said flexible record device has superposed on the opposite side of said recording layer a cushioning layer having an average thickness of from about 0.17 millimeter to about 0.64 millimeter completely enveloped either by a flexible encompassing layer or by a flexible encompassing layer and said flexible support layer;

  • said cushioning layer comprising an amorphous film-forming material and said flexible encompassing layer being immiscible with and inhibiting diffusion therethrough of said amorphous film-forming material.

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