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1.发明公开SHAPE RETAINING MATERIAL AND METHOD FOR MANUFACTURING SAME 有权FORMPEICHERNDES材料在VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP3050695A1
公开(公告)日：2016-08-03
申请号：EP15842677.5
申请日：2015-02-26
申请人： Sekisui Seikei, Ltd.
CPC分类号： C08L23/06 , B29C55/06 , B29C55/18 , B29K2023/065 , B29L2007/002
摘要： The present invention provides a single-layer shape retaining material excellent in mechanical strengths, such as tensile elastic modulus and tensile strength, as well as in non-directional shape retaining properties; and a method for producing the same. The shape retaining material is a fibrous, band-like, or sheet-like stretched formed material comprising 100 parts by weight of a high-density polyethylene resin having a weight-average molecular weight of 100,000 to 500,000 and a density of 0.945 to 0.960 g/cm 3 and 3 to 50 parts by weight of an ethylene-α-olefin copolymer obtained by copolymerizing ethylene with an α-olefin having 4 to 10 carbon atoms, the copolymer having a density of 0.935 to 0.960 g/cm 3 , the difference in density between the copolymer and the high-density polyethylene resin being ± 0.020 g/cm 3 or less, wherein the material shows, after being bent at an angle of 180 degrees in a direction orthogonal to the stretching direction, held in the bent state for 1 minute, released, and left for 5 minutes after the release, a return angle of 15 degrees or less; and shows, after being bent in a direction parallel to the stretching direction, a return angle of 25 degrees or less.
摘要翻译： 本发明提供了拉伸弹性模量和拉伸强度以及非定向形状保持性等机械强度优异的单层形状保持材料。 及其制造方法。 形状保持材料是纤维状，带状或片状拉伸成形材料，其包含100重量份的重均分子量为100,000至500,000的高密度聚乙烯树脂和0.945至0.960g的密度 / 3，和3〜50重量份通过使乙烯与碳原子数为4〜10的α-烯烃共聚获得的乙烯-α-烯烃共聚物，该共聚物的密度为0.935〜0.960g / cm 3， 共聚物与高密度聚乙烯树脂之间的密度为±0.020g / cm 3以下，其特征在于，在与拉伸方向正交的方向上以180度的角度弯曲，保持在弯曲状态 1分钟，释放后，释放5分钟后，返回角度为15度以下; 并且在平行于拉伸方向的方向弯曲之后，返回角度为25度以下。
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公开(公告)号：EP3050695B1
公开(公告)日：2018-07-18
申请号：EP15842677.5
申请日：2015-02-26
申请人： Sekisui Seikei, Ltd.
CPC分类号： C08L23/06 , B29C55/06 , B29C55/18 , B29K2023/065 , B29L2007/002
摘要： The present invention provides a single-layer shape retaining material excellent in mechanical strengths, such as tensile elastic modulus and tensile strength, as well as in non-directional shape retaining properties; and a method for producing the same. The shape retaining material is a fibrous, band-like, or sheet-like stretched formed material comprising 100 parts by weight of a high-density polyethylene resin having a weight-average molecular weight of 100,000 to 500,000 and a density of 0.945 to 0.960 g/cm 3 and 3 to 50 parts by weight of an ethylene-±-olefin copolymer obtained by copolymerizing ethylene with an ±-olefin having 4 to 10 carbon atoms, the copolymer having a density of 0.935 to 0.960 g/cm 3 , the difference in density between the copolymer and the high-density polyethylene resin being ± 0.020 g/cm 3 or less, wherein the material shows, after being bent at an angle of 180 degrees in a direction orthogonal to the stretching direction, held in the bent state for 1 minute, released, and left for 5 minutes after the release, a return angle of 15 degrees or less; and shows, after being bent in a direction parallel to the stretching direction, a return angle of 25 degrees or less.
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