Adhesive tape having printable release coating
AssigneeBorden, Inc.
InventorAlfred Blum
Life of this patent
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Abstract
A pressure-sensitive tape with a printable release coat on the side opposite to the adhesive face, the release coat including a vinyl film former, an acrylic resin and a polyamide plasticizing resin.
Claims11
A normally tacky pressure-sensitive adhesive tape comprising a backing, a normally tacky and pressure-sensitive adhesive coat on one side of said backing and a printable release coat on the opposite side of said backing, said release coat comprising, in parts by weight per 100 parts by weight of said release coat, 10 to 60 parts vinyl film former, 10 to 60 parts acrylic resin and 20 to 80 parts polyamide plasticizer resin, said vinyl film former is selected from polyvinyl chloride, polyvinyl acetate, vinyl butyral resins, copolymers of vinyl chloride and vinyl acetate, vinyl alcohol-acetate resins, copolymers of vinyl chloride and vinylidene chloride, copolymers of vinyl chloride and acrylonitrile and said vinyl film formers modified with butadiene elastomers;
- said acrylic resin is selected from polymers of C.sub.1 to C.sub.6 alkyl esters of methacrylic acid, copolymers of C.sub.1 to C.sub.6 alkyl methacrylates with less than 50% by weight of C.sub.1 to C.sub.8 alkyl acrylates, copolymers of C.sub.1 to C.sub.6 alkyl acrylates with styrene, and mixtures thereof;
- and said polyamide resin is selected from linear polyamide resins which are obtained by condensing polyfunctional amines with dimeric and trimeric fatty acids and such polyamide resins modified with waxes and plasticizers.
Dependencies are inferred from the claim text.