公开(公告)号：US20240247135A1

公开(公告)日：2024-07-25

申请号：US18415233

申请日：2024-01-17

申请人： SUBARU CORPORATION ,  KINUGAWA RUBBER IND. CO., LTD.

发明人： Kazuhito FURUYA ,  Yasushi MORITA ,  Makoto KAWAI ,  Kazuyoshi NOJIRI ,  Asuka SHIMIZU ,  Norihiro HARADA ,  Osamu TANI ,  Keiichi ITOU

IPC分类号： C08L9/00 ,  C08K5/00 ,  C08K5/20 ,  C08K5/357 ,  C08K5/40 ,  C08K5/47 ,  C08L91/06

CPC分类号： C08L9/00 ,  C08K5/0025 ,  C08K5/20 ,  C08K5/357 ,  C08K5/40 ,  C08K5/47 ,  C08L91/06 ,  C08K2201/014 ,  C08L2205/02

摘要： Disclosed is a rubber molded body formed from a rubber composition, wherein the rubber composition contains: a natural rubber and a butadiene rubber as predominant rubber components; a low-melting paraffin wax having a melting point of 45 to 57° C.; and optionally a low-melting fatty acid amide having a melting point of 35 to 85° C., wherein the mass ratio of the natural rubber to the butadiene rubber ranges from 80/20 to 10/90, wherein the amount of the low-melting paraffin max contained in the rubber composition ranges from 20 to 70 parts by mass per 100 parts by mass of all rubber components, and wherein the total amount of the low-meting paraffin wax and the low-melting fatty acid amide contained in the rubber composition ranges from 30 to 100 parts by mass per 100 parts by mass of all rubber components.