PURPOSE: To obtain a colored interlayer for laminated glass with a superior self- bonding property by adding a plasticizer and a colorant to a thermoplastic copolymer resin consisting of vinyl chloride, glycidyl methacrylate and one or more kinds of monomers such as ethylenic hydrocarbons.
CONSTITUTION: Vinyl chloride, glycidyl metharylate and one or more kinds of monomers such as ethylenic hydrocarbons, e.g., ethylene, and fatty acid vinyls, e.g., vinyl acetate, are preferably suspension polymerized to prepare a thermoplastic copolymer. The copolymer is preferably adjusted to ≥500 average degree of polymn., and 1W10wt% glycidyl methacrylate content. To the copolymer are then added a plasticizer such as DOP and a colorant such as phthalocyanine green, and a film is manufactured by a known working method such as a calender roll method. This resin film is used as an interlayer. It is superposed between glass and glass, melted by heating, and press bonded to obtain colored laminated glass.
SAWAZAKI MASARU
KIDA KUNIHIRO
