RUBBER COMPOUNDING INGREDIENT AND RUBBER COMPOSITION

A rubber compounding ingredient containing (A) a compound having a blocked isocyanate group and a hydrolyzable silyl group, such as an organosilicon compound having the following formula (1): wherein R is each independently an alkyl group having 1 to 8 carbon atoms, L is a divalent linking group, X is -O- or -NR-, Z is a hydrogen atom or a monovalent organic group, R is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group capable of bonding to Z to form a ring structure, and m is an integer of 1 to 3.