C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
18/1030, 154/106
C08L 27/06 (2006.01) B32B 7/02 (2006.01) B29D 7/14 (1980.01)
Patent
CA 1115879
ABSTRACT OF THE DISCLOSURE A destructible marking film having a thickness of about 30 to about 60 microns and a destructibility of not more than 60 kg.cm/mm, said film being composed of a resin composition consisting essentially of (A) 100 parts by weight of a vinyl chloride resin having a degree of polymerization of about 600 to about 2000 and containing 0 to about 5% by weight of a comonomer unit, (B) about 5 to 20 parts by weight of an alkyl meth- acrylate resin which is a blend of an alkyl methacrylate polymer with the alkyl group containing 1 to 3 carbon atoms and an alkyl methacrylate polymer with the alkyl group containing 4 to 10 carbon atoms, or a copolymer of an alkyl methacrylate with the alkyl group containing 1 to 3 carbon atoms and an alkyl methacrylate with the alkyl group containing 4 to 10 carbon atoms, (C) about 5 to about 30 parts by weight of a liquid plasticizer, (D) about 10 to about 150 parts by weight of a pigment, and (E) 0 to about 10 parts by weight of at least one additive selected from the group consisting of lubri- cants and stabilizers. The film can be prepared by shaping the above-defined resin composition by calendering.
314300
Nippon Carbide Kogyo Kabushiki Kaisha
Smart & Biggar
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