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Porous, heat-sensitive substrates coated with synthetic resins

  • US 3,935,364 A
  • Filed: 01/11/1974
  • Issued: 01/27/1976
  • Est. Priority Date: 10/30/1970
  • Status: Expired due to Term
First Claim
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1. An article, comprising a heat-sensitive porous substrate having a smooth, hard resin surface coating thereon, said coating comprising a room temperature cured mixture of (a) 100 parts by weight of at least one saturated synthetic resin which normally has a minimum filmforming temperature higher than room temperature on said porous substrate and (b) 2 to 40 parts by weight of an organic liquid which is a swelling agent for said resin, said liquid consisting of 70 to 10 percent by weight of at least one mono-ethylenically unsaturated compound having a boiling point of less than 190°

  • C. and 30 to 90 percent by weight of at least one ethylenically unsaturated compound having a boiling point of at least 190°

    C.

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