US 11,987,691 B2
Resin molded article and manufacturing method thereof
Akira Yane, Tokyo (JP); Kento Tsuda, Yokohama (JP); and Daisuke Tanaka, Yokohama (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 23, 2021, as Appl. No. 17/533,861.
Application 17/533,861 is a continuation of application No. 16/708,272, filed on Dec. 9, 2019, granted, now 11,208,545.
Claims priority of application No. 2018-235923 (JP), filed on Dec. 17, 2018.
Prior Publication US 2022/0081543 A1, Mar. 17, 2022
Int. Cl. C08L 23/08 (2006.01); C08K 3/013 (2018.01); C08K 3/04 (2006.01)
CPC C08L 23/08 (2013.01) [C08K 3/013 (2018.01); C08K 3/04 (2013.01); C08L 2203/20 (2013.01); C08L 2203/30 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A resin molded article comprising an ethylene vinyl acetate copolymer resin and a carbon black,
wherein 80 parts by mass or more of the ethylene vinyl acetate copolymer resin and the carbon black are contained in 100 parts by mass of the resin molded article,
wherein R1 and R2 satisfy a relationship of R2/R1≤1.5, where the R2 denotes a surface resistivity of the resin molded article after being drawn by a tension tester and the R1 denotes a surface resistivity of the resin molded article before being drawn by the tension tester, so that, at 25 degrees Celsius, a length of a primary face of the resin molded article in a width direction becomes 140% of a length of the primary face of the resin molded article in the width direction before being drawn by the tension tester, and
wherein the primary face is a face that intersects a thickness direction of the resin molded article.