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CN106232713B 成形用树脂组合物 有权

成形用树脂组合物
摘要：
本发明提供能够不使用铅、锡等重金属地制造具有优异的热稳定性、且柔软性、强度高的成形体的成形用树脂组合物、以及使用了成形用树脂组合物的成形体。本发明提供一种成形用树脂组合物，是含有氯化氯乙烯系树脂和热稳定剂的成形用树脂组合物，所述氯化氯乙烯系树脂具有下述式(a)～(c)中所示的构成单元(a)～(c)，相对于所述构成单元(a)、(b)及(c)的合计摩尔数，构成单元(a)的比例为17.5摩尔％以下，构成单元(b)的比例为46.0摩尔％以上，构成单元(c)的比例为37.0摩尔％以下，所述氯化氯乙烯系树脂中的氯含量为63～小于72质量％，所述热稳定剂含有烷基羧酸钙及锌化合物，成形用树脂组合物的230℃时的加热减量率小于2质量％。(化1)‑CCl2‑(a)‑CHCl‑(b)‑CH2‑(c)。
摘要（英）：

The present invention provides a resin composition for molding that allows production of a molded body having excellent thermal stability as well as high flexibility and strength, without using heavy metals such as lead and tin, and also provides a molded body obtained using the resin composition for molding. The present invention provides a resin composition for molding, including a chlorinated polyvinyl chloride and a thermal stabilizer, the chlorinated polyvinyl chloride having structural units (a) to (c) represented by formulae (a) to (c) shown below: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CCl 2 -€ƒ€ƒ€ƒ€ƒ€ƒ(a), €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CHCl-€ƒ€ƒ€ƒ€ƒ€ƒ(b), €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CH 2 -€ƒ€ƒ€ƒ€ƒ€ƒ(c), the proportion of the structural unit (a) being 17.5 mol% or less, the proportion of the structural unit (b) being 46.0 mol% or more, and the proportion of the structural unit (c) being 37.0 mol% or less, relative to the total number of moles of the structural units (a), (b), and (c), the chlorinated polyvinyl chloride having a chlorine content of 63 mass% or more and less than 72 mass%, the thermal stabilizer containing a calcium alkyl carboxylate and a zinc compound, and the resin composition for molding having a loss in quantity on heating at 230°C of less than 2 mass%.

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