公开(公告)号：US20170306144A1

公开(公告)日：2017-10-26

申请号：US15520492

申请日：2015-11-12

申请人： Kureha Corporation

发明人： TAKUMA KOBAYASHI ,  HIKARU SAIJO ,  KATSUMI YOSHIDA

IPC分类号： C08L67/04 ,  C08G63/06 ,  C08L33/10 ,  B22C1/22 ,  E21B4/16

CPC分类号： C08L67/04 ,  B22C1/2266 ,  C08G63/06 ,  C08L23/08 ,  C08L33/10 ,  C08L51/04 ,  E21B4/16 ,  C08L33/068

摘要： In light of increasingly severe and diverse excavation conditions for hydrocarbon resource recovery, such as the drilling of very deep wells, provided is a highly impact-resistant polyglycolic acid resin composition that is resistant to damage even from contact or collision with various members during molding, transport, and well drilling; has excellent mechanical properties and heat resistance; can easily be removed as necessary after the completion of well treatment; and contributes to reducing the cost and shortening the process of well drilling. Also, provided is a molded product for well drilling, such as a downhole tool member.