摘要 |
<p>Provided are compositions comprising a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 80 mol% and a saponification degree of vinyl acetate component of at least 95 mol%, said composition containing 20 to 200 ppm as converted to alkali metal of an alkali metal acetate, 30 to 250 ppm of acetic acid, and 5 to 500 ppm as converted to phosphate ion of phosphoric acid or an alkali metal hydrogenphosphate, and having a content ratio of acetic acid/alkali metal acetate of 0.1 to 1 and the flow characteristic that the extrusion rate does not substantially increase for at least 10 hours in the relationship between the heating time and the extrusion rate with a capillary rheometer (Koka Flow Tester) at at least one temperature from 10 to 80 DEG C above the melting point. Also provided are multilayered containers comprising as the innermost layer a layer formed by the use of the above compositions, and packages comprising such containers containing a liquid article or paste article.</p> |
申请人 |
KURARAY CO., LTD., KURASHIKI, OKAYAMA, JP |
发明人 |
AOYAMA, AKIMASA, KURASHIKI-CITY, JP;KATAYAMA, TETSUYA, KURASHIKI-CITY, JP;MORITANI, TAKESHI, KURASHIKI-CITY, JP;YAMAUCHI, JUNNOSUKE, KURASHIKI-CITY, JP;HIROFUJI, SATOSHI, KURASHIKI-CITY, JP |