摘要 |
<p>A multi-layer material with a layer (A) of a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60 mol% and a degree of saponification of at least 90% and a layer (B) of a styrene-based polymer having mainly syndiotactic configuration, or a resin composition comprising 5 to 95 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A) having an ethylene content of 20 to 60 mol% and a degree of saponification of at least 90% and 95 to 5 parts by weight of a styrene-based polymer (B) having mainly syndiotactic configuration has gas barrier properties and markedly improved heat resistance. In a molding comprising the resin composition or the multi-layer material, contents (food) can be stored for a long period of time at ambient temperature. Moreover, after retort sterilization, the container can be heated by boiling, or in a microwave oven or a grill oven (at 220 to 240 DEG C) in the condition that the contents (food) are placed in the container.</p> |
申请人 |
KURARAY CO., LTD., KURASHIKI, OKAYAMA, JP;IDEMITSU PETROCHEMICAL CO., LTD., TOKIO/TOKYO, JP |
发明人 |
TAICHI, NEGI, KURASHIKI-SHI, OKAYAMA-KEN, JP;AKIRA, MOCHIZUKI, TSUKUBA-SHI, IBARAGI-KEN, JP;SHIRO, NAGATA, KURASHIKI-SHI, OKAYAMA-KEN, JP;KOMEI, YAMASAKI, C/O IDEMITSU PETROCHEM. CO., LTD., ICHIHARA-SHI, CHIBA-KEN, JP;KEISUKE, FUNAKI, C/O IDEMITSU PETROCHEM. CO., LTD., ICHIHARA-SHI, CHIBA-KEN, JP;TAKASHI, SUMITOMO, C/O IDEMITSU PETROCHEM. CO.,LTD, ICHIHARA-SHI, CHIBA-KEN, JP |