Chlorinated vinyl chloride resin composition and chlorinated vinyl chloride resin molded body
AssigneeSekisui Chemical Co., Ltd.
InventorKenichi Matsumura
Life of this patent
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Abstract
The present invention provides a chlorinated polyvinyl chloride resin composition capable of providing a molded article that is excellent in discoloration resistance and corrosion resistance and is not likely to cause environmental pollution as the amount of metal leached therefrom is small, and a chlorinated polyvinyl chloride resin molded article. The present invention relates to a chlorinated polyvinyl chloride resin composition containing: a chlorinated polyvinyl chloride resin; a thermal stabilizer; and at least one thioglycolic acid compound selected from the group consisting of thioglycolic acid and thioglycolic acid esters.
Claims17
A chlorinated polyvinyl chloride resin composition comprising:
- a chlorinated polyvinyl chloride resin;
- a thermal stabilizer;
- and
- at least one thioglycolic acid compound selected from the group consisting of thioglycolic acid and thioglycolic acid esters,
- wherein the chlorinated polyvinyl chloride resin contains structural units (a) to (c) represented by the following formulas (a) to (c),
- [Chem. 1]
- —CH2—CHCl— (a)
- —CH2—CCl2— (b)
- —CHCl—CHCl— (c)
- wherein the mass equivalent of the structural unit (b) of the chlorinated polyvinyl chloride resin is 5 to 35 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin,
- wherein the amount of added chlorine in the chlorinated polyvinyl chloride resin is 9.3 to 12.3% by mass, and
- wherein the ratio of the amount in parts by mass of the thioglycolic acid compound to the mass equivalent of the structural unit (b) of the chlorinated polyvinyl chloride resin is 0.0001 to 1.5.
A chlorinated polyvinyl chloride resin molded article comprising:
- a chlorinated polyvinyl chloride resin;
- a thermal stabilizer;
- and
- at least one thioglycolic acid compound selected from the group consisting of thioglycolic acid and thioglycolic acid esters,
- wherein the chlorinated polyvinyl chloride resin contains structural units (a) to (c) represented by the following formulas (a) to (c),
- [Chem. 1]
- —CH2—CHCl— (a)
- —CH2—CCl2— (b)
- —CHCl—CHCl— (c)
- wherein the mass equivalent of the structural unit (b) of the chlorinated polyvinyl chloride resin is 5 to 35 parts by mass based on 100 parts by mass of the chlorinated polyvinyl chloride resin,
- wherein the amount of added chlorine in the chlorinated polyvinyl chloride resin is 9.3 to 12.3% by mass, and
- wherein the ratio of the amount in parts by mass of the thioglycolic acid compound to the mass equivalent of the structural unit (b) of the chlorinated polyvinyl chloride resin is 0.0001 to 1.5.
Dependencies are inferred from the claim text.