MOLDING METHOD OF POLYVINYL BUTYRAL RESIN, TREATMENT METHOD OF POLYVINYL BUTYRAL RESIN AND LAMINATED GLASS RECYCLING METHOD

摘要

PPROBLEM TO BE SOLVED: To recycle a polyvinyl butyral resin at a low cost in a short time. PSOLUTION: Recovered polyvinyl butyral resin pieces (PVB pieces) and particles of a filler such as paper or the like are mixed and the resulting mixture is ground by a grinder while water is added to the mixture (S1). Next, the mixture of the ground polyvinyl butyral resin and the filler is ground, kneaded and granulated (S2). Subsequently, the mixture obtained by kneading and granulation is charged in an injection molding machine along with an olefinic resin to be heated and melted. Then, the resin melted in the injection molding machine is injected in a mold to obtain a molded product (S3). PCOPYRIGHT: (C)2005,JPO&NCIPI