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专利名称：Vinyl alcohol polymer and its composition发明人：Fujiwara, Naoki, c/o Kuraray Co.,
Ltd.,Somemiya, Kazuyuki, c/o Kuraray Co.,Ltd.,Kusudou, Takeshi, c/o Kuraray Co., Ltd.
申请号：EP99309612.2申请日：19991130公开号：EP1008605B1公开日：20050601
摘要：Vinyl alcohol polymers having an ethylene unit content of 2 to 19 mole %, apolymerization degree of 200 to 2,000, a degree of saponification of 80 to 99.99 mole %and a total content of carboxyl group and lactone rings of 0.02 to 0.4 mole % areexcellent in thermal stability, water resistance, gas-barrier properties, water vapor-barrier property, stability of aqueous solution kept at low temperatures andbiodegradability.
申请人：KURARAY CO
地址：JP
国籍：JP
代理机构：Nachshen, Neil Jacob
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