US 12,110,388 B2
Polybutylene terephthalate resin composition and molded article
Souki Yoshida, Hiratsuka (JP); and Yasushi Yamanaka, Hiratsuka (JP)
Assigned to Mitsubishi Chemical Corporation, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Apr. 23, 2021, as Appl. No. 17/238,266.
Application 17/238,266 is a division of application No. 16/097,426, granted, now 11,098,190, previously published as PCT/JP2017/018469, filed on May 17, 2017.
Claims priority of application No. 2016-100664 (JP), filed on May 19, 2016; application No. 2017-097381 (JP), filed on May 16, 2017; and application No. 2017-097382 (JP), filed on May 16, 2017.
Prior Publication US 2021/0246302 A1, Aug. 12, 2021
Int. Cl. C08L 67/02 (2006.01); C08J 5/00 (2006.01); C08L 23/08 (2006.01); C08L 63/00 (2006.01); H01B 3/40 (2006.01); H01R 13/533 (2006.01)
CPC C08L 67/02 (2013.01) [C08J 5/00 (2013.01); C08L 23/08 (2013.01); C08L 63/00 (2013.01); H01R 13/533 (2013.01); C08L 2201/02 (2013.01); C08L 2203/20 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2205/06 (2013.01); H01B 3/40 (2013.01); H01R 2201/26 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A connector connection port, wherein:
the connector connection port is formed of a molded body obtained by injection molding a polybutylene terephthalate resin material, and a boss part is provided in a protruding form on an outer peripheral surface or inner peripheral surface of the connector connection port,
voids are present in the polybutylene terephthalate resin material in the boss part and a lower part of the outer peripheral surface or inner peripheral surface on which the boss part is provided,
when a sum total of cross-sectional areas of voids which are present in a region lying at a height of 0 to 0.5 mm from the outer peripheral surface or inner peripheral surface in the boss part is denoted by S1, a sum total of cross-sectional areas of voids which are present in a region lying at a depth of 0 to 0.5 mm from the outer peripheral surface or inner peripheral surface on which the boss part is provided is denoted by S2, and a total area of S1 and S2 is 100%, an areal ratio of S1 is 5% to 45% and an areal ratio of S2 is 55% to 95%,
the polybutylene terephthalate resin material is a polybutylene terephthalate resin composition having a crystallization temperature of from 175 to 193° C., and
the polybutylene terephthalate resin material comprises 100 parts by mass of a polybutylene terephthalate resin and 5 to 30 parts by mass of an elastomer, and the elastomer is within a phase of the polybutylene terephthalate resin.