Peroxide cure possible blend and the cure se ru product null of the polyacrylate and part

摘要

PROBLEM TO BE SOLVED: To obtain the subject product composed of an acrylate elastomer and a partially hydrogenated nitrile rubber, having excellent oil deterioration resistance and thermal deterioration resistance and useful especially for belt, hose, etc., to be used near an automobile engine. ;SOLUTION: This cured product is produced by blending (A) 10-90 pts.wt. of a polyacrylate elastomer composed of (i)≥10mol% of a structural unit of formula I (R¹ is a 4-8C alkyl), (ii) 0-30mol% of a structural unit of formula II (R² is a 2-12C alkoxyalkyl) and (iii) the remaining part of a structural unit of formula III (R³ is a 1-3C alkyl) (the sum of (i) to (iii) is 100mol%) and (B) 90-10 pts.wt. of a partially hydrogenated nitrile rubber having an unsaturation degree of 0.1-20% and curing the obtained blend with a peroxide.;COPYRIGHT: (C)1997,JPO