MOLDING RESIN COMPOSITION INCLUDING CHLORINATED VINYL CHLORIDE-BASED RESIN, AND MOLDED ARTICLE THEREOF
申请人:Sekisui Chemical Co., Ltd.
公开号:EP3050925A1
公开(公告)日:2016-08-03
The present invention aims to provide a chlorinated vinyl chloride-based resin composition with excellent thermal stability and a molded body thereof. The present invention relates to a resin composition for molding, including a chlorinated vinyl chloride-based resin, a thermal stabilizer, and a polyalcohol and/or a partial ester of a polyalcohol. The chlorinated vinyl chloride-based resin has a chlorine content of 65% by weight or more and less than 72% by weight. The chlorinated vinyl chloride-based resin has, based on the total number of moles of a structural unit (a) -CCl2 a structural unit (b) -CHCl-, and a structural unit (c) -CH2-, a proportion of the structural unit (a) of 17.5 mol% or less, a proportion of the structural unit (b) of 4 6. 0 mol% or more, and a proportion of the structural unit (c) of 37.0 mol% or less. The thermal stabilizer contains at least one of a compound represented by the formula Ca1-xZnx(OH)2 where x satisfies the inequality 0 < x < 1 and a compound represented by the formula Ca1-yZnyO where y satisfies the inequality 0 < y < 1.
本发明旨在提供一种具有优异热稳定性的氯化乙烯基树脂组合物及其模塑体。本发明涉及一种成型用树脂组合物,包括氯化乙烯基树脂、热稳定剂、多元醇和/或多元醇部分酯。氯化乙烯基树脂的氯含量为 65%(重量比)以上,72%(重量比)以下。根据结构单元(a)-CCl2、结构单元(b)-CHCl-和结构单元(c)-CH2-的总摩尔数,氯化乙烯基树脂中结构单元(a)的比例为 17.5 摩尔%或更少,结构单元(b)的比例为 4 6.0 摩尔%或更多,结构单元(c)的比例为 37.0 摩尔%或更少。热稳定剂含有至少一种由式 Ca1-xZnx(OH)2 表示的化合物(其中 x 满足不等式 0 < x < 1)和由式 Ca1-yZnyO 表示的化合物(其中 y 满足不等式 0 < y < 1)。