Patent ID: 6265493
Filing Date: 2001-07-24
Classification: C08F,Y02P

Abstract:
Functionalized polyolefins and graft copolymers (II) having the structural formula ##STR11##in which: R is a member selected from alkyl groups, cyclic aliphatic groups and aromatic groups; G and G', independently, are selected from --H, --OH, epoxy, --NH.sub.2, --COOH, anhydride, --Cl, --Br, --M, --COOM (wherein M=metal) and a polymer chain having molecular weight of at least about 500; x is .gtoreq.0; y is .gtoreq.0; m is .gtoreq.0; n is at least 0.05%; the combined alpha-olefin mole % (x+y) is from about 50 to 99.9%; the sum of x, y, m and n is 100%; and the backbone polymer chain has a number average molecular weight (Mn) of at least about 1,000; said copolymers (II) being derived from linear polyolefin copolymers (I) that (a) comprises alpha-olefin and divinylbenzene comonomer units, (b) has a linear molecular structure with an unsaturation/divinylbenzene (TUS/DOU) mole ratio from about 0.8 to 1.1, (c) has a ratio of weight average molecular weight (Mw) to number average molecular weight, Mw/Mn, less than about 4, and (d) has narrow composition distribution with the incorporated divinylbenzene units being distributed homogeneously along the polyolefin chains.