THERMOPLASTIC ELASTOMER COMPOSITION, MANUFACTURING METHOD OF THE SAME AND RUBBER ROLLER COMPOSED OF THE SAME

摘要

PROBLEM TO BE SOLVED: To prevent oil bleeding from a rubber roller and a void (white-off) in the printed surface when it is used as a paper feeding roller. SOLUTION: The thermoplastic elastomer composition is obtained by compounding together a crosslinking agent, a rubber (A) crosslinkable by the crosslinking agent and a thermoplastic elastomer (B) uncrosslinkable by the crosslinking agent or a blend of the thermoplastic elastomer (B) uncrosslinkable by the crosslinking agent with a thermoplastic resin so that the ratio of (B) to (A) is 4>=B/A>=1/4 thereby dynamically crosslinking the rubber (A) by the crosslinking agent to be dispersed in the thermoplastic elastomer (B). The composition is designed so that it contains none or a little amount of a softening agent comprising oil to set the acetone extract thereof not lower than 0% but not higher than 20%. The rubber roller for feeding a paper is made of the elastomer composition.