| abstract |
PURPOSE: To provide the titled compsn. which causes neither discoloration nor fading, by heating an unvulcanized rubber compsn. contg. a specified vulcanizing agent, an electrophilic reagent and a colorant. n CONSTITUTION: 0.5W5pts.wt. vulcanizing agent selected from among S, org. peroxides (e.g. acetylcyclohexylsulfonyl peroxide), S-contg. compds., Se and Te, 0.2W20pts.wt. electrophilic reagent such as SnCl 4 , a colorant selected from among org. pigments or dyes (e.g. Pigment Red 170) and inorg. pigments (e.g. molybdenum red) and optionally additives such as vulcanizing aid, processing aid, reinforcing agent, softener, filler, antioxidant, ultraviolet light absorber, etc. are blended with 100pts.wt. natural or synthetic rubber. The resulting unvulcanized rubber compsn. is vulcanized by heating. n COPYRIGHT: (C)1985,JPO&Japio |