The invention provides dispersing agents for inorganic fillers capable of uniformly dispersing inorganic fillers in a substrate such as made of a rubber or resin material such that molded products with improved mechanical strength and abrasion resistance c...

A polyolefin microporous membrane that may serve as a separator for a lithium ion battery is a single-layer or laminated structure and includes a film that forms a surface layer and contains organosilicone particles.