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AssigneeMitsui Toatsu Chemicals, Inc.
InventorsHosei Shinoda, Masami Ohtaguro, Shigeru Iimuro, Akihiro Funae, Shinobu Moriya
Estimating the term…
Articles which can be degraded and disappear in the natural environment are a degradable adhesive film which can be used for surface protection or indication after printing on the film surface and has an adhesive layer on one side of a substrate film obtained from a lactic acid base polymer such as polylactic acid and a lactic acid/hydroxycarboxylic acid copolymer having a molecular weight of 30,000-500,000, and a degradable resin composition which is excellent in weatherability and comprises 100 parts by weight of a lactic acid base polymer and 0.001-5 parts by weight of one or more additives selected from ultraviolet absorbers and light stabilizers.
A degradable adhesive film comprising a substrate film obtained from a lactic acid base polymer and an adhesive layer on one side of the substrate film, wherein the substrate film comprises 0.001.about.5 parts by weight of at least one additive selected from the group consisting of an ultraviolet absorber and a light stabilizer for 100 parts by weight of the lactic acid base polymer, and the adhesive layer comprises an adhesive and 0.01.about.20 parts by weight of a crosslinking agent selected from the group consisting of epoxy based resins, melamine based resins and aziridine based resins for 100 parts by weight of the adhesive.
Dependencies are inferred from the claim text.