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1. 发明授权

US06242535B1 Hollow vessel for heat sterilization 有权
标题翻译：用于加热灭菌的空心容器
公开(公告)号：US06242535B1
公开(公告)日：2001-06-05
申请号：US09455795
申请日：1999-12-07
申请人： Mamoru Kagami , Seiki Maeda , Yasuo Tanaka
发明人： Mamoru Kagami , Seiki Maeda , Yasuo Tanaka
IPC分类号： C08L2300
CPC分类号： C08L23/04 , C08L23/10 , C08L53/00 , C08L2314/06 , C08L2666/04 , C08L2666/02
摘要： A hollow vessel for heat sterilization, which is superior in the transparency and in the impact resistance with scarce odor, made of a polyolefin resin having characteristic properties comprising an underwater light transmittance of 70-99% resulting from determination of light transmission at a wave length of 450 nm for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam at a temperature of 121° C. for 20 minutes; a tensile elastic modulus of 200-700 MPa, determined according to ASTM D 638 for a resin specimen of a thickness of 0.5 mm which has been subjected to a heat sterilization treatment with steam; a haze value difference &Dgr; Haze of 1-20%, determined according to ASTM D 1330 for a resin specimen of a thickness of 0.5 mm respectively before and after a heat sterilization treatment thereof with steam; and a high-speed impact strength of 1.5-10 J, determined on an impact test at 0° C. as the total rupture energy required for rupturing a resin specimen of 0.5 mm×9 cm×9 cm which has been subjected to a heat sterilization treatment with steam, wherein the impact test is carried out by settling the specimen on a jig having a hole of 1 inch diameter for receiving an impinging weight having an impact top of a diameter of 0.5 inch and causing the weight to impinge thereonto at an impingement speed of 3 m/sec.
摘要翻译：一种用于加热灭菌的中空容器，其具有优异的透明性和耐候性，具有极好的气味，由聚烯烃树脂制成，该聚烯烃树脂具有以下特征：聚苯乙烯树脂，其具有70至99％的水中透光率，对于已经在121℃的温度下用蒸汽进行加热灭菌处理20分钟的厚度为0.5mm的树脂样品的450nm;拉伸弹性模量为200-700MPa，根据ASTM D 638，对于已经用蒸汽进行热灭菌处理的厚度为0.5mm的树脂试样;雾度值差ΔTA1为1-20％，根据ASTM D 1330测定厚度为0.5的树脂试样 mm，分别在用蒸汽进行热灭菌处理之前和之后; 并且在0℃下的冲击试验确定为1.5-10J的高速冲击强度，作为已经用蒸汽进行热灭菌处理的0.5mm×9cm×9cm的树脂试样破裂所需的总破裂能量，其中冲击试验是通过将样品沉积在具有1英寸直径的孔的夹具上进行的，用于接收具有0.5英寸直径的冲击顶部的冲击重量，并使其重量以3m的冲击速度冲击 /秒。

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