Rubber composition containing powdered leather and molding products.

摘要

A rubber composition containing a powdered leather of a dispersion mixture comprising from 10 to 400 parts by weight of a powdered leather with a skin component of greater than 75% by weight, a total amount of Na<+> ions and Ca<2><+> ions extractable with water and of less than 0.5% by weight and with an average grain size D50 of from 10 mu m to 250 mu m, and 100 parts by weight of rubber obtained from a raw material for the powdered leather by performing coarse pulverization, water washing, dewatering, steams swelling, drying and powderization and then separation into particles of a desired average grain size depending on the purpose of use, as well as a molding product obtained from the rubber composition.