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Color display product

  • US 4,457,718 A
  • Filed: 12/17/1982
  • Issued: 07/03/1984
  • Est. Priority Date: 02/12/1981
  • Status: Expired due to Term
First Claim
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1. A color display product consisting essentially of a polypropylene film base with a thickness in the range of from about 2 mils to about 7 mils,said polypropylene film base having at least one surface coated with an interpolymer coating composition comprising an interpolymer as the film forming agent of (a) from about 2.5 to about 6 parts by weight of an alpha-beta monoethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, and mixtures thereof, and (b) from about 97.5 to about 94 parts by weight of neutral monomer esters, said neutral monomer esters comprising (1) methyl acrylate or ethyl acrylate and (2) methyl methacrylate, said interpolymer comprising from about 30 percent to about 55 percent by weight of methyl methacrylate when said alkyl acrylate is methyl acrylate, and from bout 52.5 percent to about 69 percent by weight of methyl methacrylate when said alkyl acrylate is ethyl acrylate, said interpolymer coating being further characterized as containing (1) from about 30 percent to about 60 percent by weight based upon the total weight of said interpolymer, of a hot slip agent consisting of a finely divided, water insoluble, inorganic solid selected from the group consisting of silica, diatomaceous earth, calcium silicate, bentonite and finely divided clays, said inorganic solid having a particle size between about 10 and about 200 millimicrons, and (2) said interpolymer coating being further characterized by containing a cold-slip, anti-blocking material comprising finely-divided wax;

  • a paint coating on the surface of said film base coated with said interpolymer coating composition;

    an adhesive coating; and

    a mount base, said film base being adhesively affixed to said mount base with said adhesive coating being on said painted coating or on said unpainted surface of said film base.

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