| abstract |
A graft polymer containing a cyclic structurencomprised of a polymer containing a cyclic structurengraft-modified with an unsaturated compound containingna polar group, having a graft ratio of 10 to 150 mol%,nhaving a weight average molecular weight of 1,000 ton1,000,000, and having a gel content of not more thann0.1 wt% or having a ratio (Ha/La) of high molecularnweight side area (Ha) and low molecular weight sidenarea (La) divided by a vertical line suspended from anpeak top of a differentiated elution profile measurednby gel permeation chromatography to a baseline of notnmore than 1.6, a method of production of the same, andna curable composition containing that graft polymerncontaining a cyclic structure and a curing agent. |