| 摘要 |
<p>PURPOSE: To obtain an interior material useful for interior decoration for a door of an automobile and of a ceiling, having excellent adhesiveness to a core material free from blocking to a primer layer, by subjecting the exposed surface of a foam of a specific laminated foam to corona discharge treatment, coating the treated surface with a primer and drying. CONSTITUTION: The exposed surface of a foam of a laminated foam obtained by laminating a vinyl chloride resin sheet (e.g. one having 0.4-0.7mm thickness) to one side of the foam (e.g. one having 15-30 times expansion ratio and 1-4mm thickness) which comprises a PP-based resin [e.g. a mixture of 40-100wt.% of PP and 60-0wt.% of an ethylenic resin such as (linear low-density) PP or ethylene-vinyl acetate copolymer] and has 3-10μm surface roughness is subjected to corona discharge treatment so as to make >=34dyn/cm surface tension. The treated surface is coated with a primer (e.g. a solution obtained by chloroprene rubber, etc., as main agents in a solvent such as an ether or toluene) and dried to give the objective interior material.</p> |
