Vinyl chloride resin composition for transparent products
A vinyl chloride resin composition for transparent products, comprising 100 parts by mass of the vinyl chloride resin, 0.01 to 10 parts by mass of the following component (A), 0.01 to 10 parts by mass of the following component (B) and 0.01 to 3 parts by mass of the following component (C); (A) At least one kind of salt selected from organic acid zinc salts. (B) At least one kind of compound selected from zinc-modified hydrotalcite compounds. (C) At least one kind of compound selected from phosphite ester compounds.
1. A vinyl chloride resin composition for transparent products, comprising 100 parts by mass of the vinyl chloride resin, 0.01 to 10 parts by mass of the following component (A), 0.01 to 10 parts by mass of the following component (B) and 0.01to 3 parts by mass of the following component (C);
(A) At least one kind of salt selected from among organic acid zinc salts,
(B) At least one kind of compound selected from among zinc-modified hydrotalcite compounds,
(C) At least one kind of compound selected from among phosphite ester compounds.
2. The vinyl chloride resin composition for transparent products according to claim 1 , wherein said component (C) is a phosphite ester compound having 12 to 32 carbon atoms.
3. The vinyl chloride resin composition for transparent products according to claim 1 , wherein said component (A) is a zinc salt of organic carboxylic acid having 6 to 18 carbon atoms.
4. The vinyl chloride resin composition for transparent products according to claim 1 , wherein said component (B) is a zinc-modified hydrotalcite compound represented by the following general formula (1);
M y1 Zn y2 Al x (OH) 2 (CO 3 ) x/2 ·mH 2 O (1)
wherein M represents magnesium, or magnesium and calcium, x, y1 and y2 are numbers satisfying the conditions represented by the following formulae respectively, m represents 0or any positive numbers; 0<x≦0.5, y1+y2=1−x, y1≧y2, 0.3y1<1 and 0<y2<0.5.
5. The vinyl chloride resin composition for transparent products according to claim 1 , wherein said composition does not contain an organic tin compound.
6. A transparent molded article obtained by molding the vinyl chloride resin composition for transparent products according to claim 1 .