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US 12,742,023 B2Granted
Vinyl acetate, vinyl acetate polymer, and vinyl alcohol polymer
AssigneeKuraray Co., Ltd.
InventorsYasutaka Inubushi, Keishi Hachiya, Masaki Kato, Yoshikazu Yamasaki, Makoto Okamoto, Kazuyuki Somemiya, Takafumi Izawa
Life of this patent
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Abstract
[Problem to be solved] To provide a traceable vinyl acetate, a polymer containing the vinyl acetate, and a vinyl alcohol polymer which is a saponified product of the polymer. [Solution] Vinyl acetate having a ratio of carbon-14 to total carbon of 1.0×10−14 or more, a vinyl acetate polymer containing the vinyl acetate as a monomer unit and a vinyl alcohol polymer obtained by saponifying the vinyl acetate polymer.
Claims31
A vinyl acetate having a ratio of carbon-14 to total carbon of 1.0×10−14 or more and less than 1.2×10−12.
Dependencies are inferred from the claim text.