Polyvinyl chloride resin composition and manufacturing method thereof
AssigneeKuraray Co., Ltd.
InventorsMasaki Kato, Akira Tsuboi, Masato Nakamae
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Abstract
A polyvinyl chloride resin composition contains: from 0.005 to 5 parts by weight of a vinyl alcohol-based polymer having a degree of saponification of from 75 to 99.9 mol % and having a viscosity average degree of polymerization of 450 or less; and from 0.01 to 5 parts by weight of a zinc compound, based on 100 parts by weight of a polyvinyl chloride resin. A polyvinyl chloride resin composition is thereby provided that is excellent in thermal stability while being shaped and with which a less colored shaped article can be obtained.
Claims8
A polyvinyl chloride resin composition comprising:
- a polyvinyl chloride resin;
- 0.005 to 5 parts by weight of a vinyl alcohol-based polymer having a degree of saponification of 75 to 99.9 mol % and having a viscosity average degree of polymerization of 450 or less;
- and
- 0.01 to 5 parts by weight of a zinc compound, with respect to 100 parts by weight of the polyvinyl chloride resin.
(canceled)
A method of producing a polyvinyl chloride resin composition, the method comprising:
- adding 0.005 to 5 parts by weight of a vinyl alcohol-based polymer having a degree of saponification of from 75 to 99.9 mol % and having a viscosity average degree of polymerization of 450 or less and
- 0.01 to 5 parts by weight of a zinc compound, with respect to 100 parts by weight of a polyvinyl chloride resin
- to a polyvinyl chloride resin.
Dependencies are inferred from the claim text.