Patent ID: 9724476
Date: 2017-08-08
CPC Classifications: A61J,A61M,B29C,B29K,B29L,B65D,Y10T

Claim:
1. A medical rubber part, obtained by: stacking an unvulcanized rubber sheet mainly containing a rubber for forming a liquid-contacting portion and an unvulcanized rubber sheet mainly containing a butyl-based rubber for forming a non-liquid-contacting portion, and press-molding the stacked rubber sheets to form a molded sheet, thereby obtaining said medical rubber part, wherein a color difference dE between the liquid-contacting portion and the non-liquid-contacting portion is 6.0 or more in NBS units, and wherein a density difference between the liquid-contacting portion and the non-liquid-contacting portion is 0.02 or less.