PURPOSE: To obtain the title film excellent in adhesion and retention of adhesion between an adherend and the film, by sticking a specified self-adhesive film for marking to the surface of a polyolefin adherend with a modified polyolefin- containing composition.
CONSTITUTION: A composition (B) is obtained by mixing a modified polyolefin with a resin which has a number-average MW of 300W30,000 and is liquid or tacky at 50°C as an optical component and an organic solvent. Component B is applied to the surface of a polyolefin adherend (A) such as a sheet or a molding of a crystalline polyolefin polymer obtained by polymerizing a hydrocarbon compound having an olefinic C-C bond in the molecular structure and dried. To this adherend a marking film (C) formed by applying an adhesive to the back of a film formed from a mixture of a vinyl chloride resin, a colorant, a plasticizer, etc. and having a thickness of 20W500μ, a tensile strength of 1W10kg/25mm (Tensilon tensile tester, 300mm/min at 23°C and 65% RH), an elongation of 300% (measured in the same way as that described above) and a contrast ratio ≥90 (JIS K-5400) is stuck by application of pressure.
MATSUI KOMAJI
TAKAHASHI MASAHARU
WAKIMOTO MITSUO
| JPS6099138A | 1985-06-03 | |||
| JPS59227450A | 1984-12-20 |
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