公开(公告)号：EP3269763B1

公开(公告)日：2020-09-09

申请号：EP17180795.1

申请日：2017-07-11

申请人： Hitachi-GE Nuclear Energy, Ltd.

发明人： HONBOU, Kyouko ,  TERAO, Yoshinori ,  NAGATA, Junya

IPC分类号： C08K5/01 ,  C08L23/06 ,  F16L9/12 ,  C08K3/22

公开(公告)号：EP3778745A1

公开(公告)日：2021-02-17

申请号：EP20187000.3

申请日：2017-07-11

申请人： HITACHI-GE NUCLEAR ENERGY, LTD.

发明人： HONBOU, Kyouko ,  TERAO, Yoshinori ,  NAGATA, Junya

IPC分类号： C08K5/01 ,  C08L23/06 ,  F16L9/12

摘要： Disclosed is a polyethylene resin composition which includes: a base material mainly including a polyethylene; and an additive, in which the additive includes a nonpolar substance that is a liquid at room temperature, and a proportion of the additive is 0.1 to 10 parts by mass to the polyethylene of 100 parts by mass. Thus, the polyethylene resin composition can be provided which resists brittle fracture/cracking and stress cracking caused by stress concentration on, if any, invisible minute defects in the composition and which offers sufficient elongation.

公开(公告)号：EP3269763A1

公开(公告)日：2018-01-17

申请号：EP17180795.1

申请日：2017-07-11

申请人： Hitachi-GE Nuclear Energy, Ltd.

发明人： HONBOU, Kyouko ,  TERAO, Yoshinori ,  NAGATA, Junya

IPC分类号： C08K5/01 ,  C08L23/06 ,  F16L9/12

摘要： Disclosed is a polyethylene resin composition which includes: a base material mainly including a polyethylene; and an additive, in which the additive includes a nonpolar substance that is a liquid at room temperature, and a proportion of the additive is 0.1 to 10 parts by mass to the polyethylene of 100 parts by mass. Thus, the polyethylene resin composition can be provided which resists brittle fracture/cracking and stress cracking caused by stress concentration on, if any, invisible minute defects in the composition and which offers sufficient elongation.

摘要翻译： 公开了一种聚乙烯树脂组合物，其包含：主要包含聚乙烯的基材; 和添加剂，其中所述添加剂包含在室温下为液体的非极性物质，并且所述添加剂的比例相对于100质量份聚乙烯为0.1至10质量份。 因此，可以提供聚乙烯树脂组合物，其能够抵抗由应力集中引起的脆性断裂/裂纹和应力开裂，如果存在的话，组合物中的不可见微小缺陷并且提供足够的伸长率。