| 摘要 |
PURPOSE:To obtain the subject mixture having less haze free from change in dimension of molded article even in variation of recycled ratio in the case of using waste for recovered articles in a polymer molding by blending polyester particles with its melted and recycled product and with its partial hydrolyzate in a specific ratio. CONSTITUTION:(A) A polyester comprising an aromatic dicarboxylic acid and an aliphatic glycol, having 0.65-0.90dl/g intrinsic viscosity is blended with (B) particles prepared by melting and molding the particles A and then grinding and pelletizing, and (C) particles having an intrinsic viscosity of 0.01-0.25dl/g lower than that of the particles A by hydrolyzing the particles A in the ratio of the particles (B+C): the particles A of 8-20:92-80 by weight and in 1wt.% or more particles C based on total amounts of the particles to give the objective mixture. Terephthalic acid, naphthalenedicarboxylic acid, etc., are used as the aromatic dicarboxylic acid and ethylene glycol and trimethylene glycol may be used as the aliphatic glycol. |
