Patent ID: 7884161

Claim:
A method for preparation of an 1-alkene-acrylate based copolymer comprising the step of polymerization reaction of a mixture of monomer comprising 1-alkene and an acrylate based monomer with a radical polymerization initiator under presence of a metal oxide or Lewis acid, wherein the metal oxide is a compound as represented in Formula 5, M x N y O z Formula 5 where M is at least one selected from the group consisting of an alkali earth metal, a transition metal, a group 13 and group 14 metal; N is a group 5 or group 6 atom; 0 is an oxygen atom; x, y and z are a value determined by state of oxidation of M and N, and x>0, y≧0 and z>0; and the Lewis acid comprises a metal cation selected from the group consisting of scandium, titanium, vanadium, chrome, manganese, iron, cobalt, copper, zinc, boron, aluminum, yttrium, zirconium, niobium, molybdenum, cadmium, rhenium, and tin; and an anion selected from the group consisting of halide, triflate, HPO 3 2− , H 3 PO 2− , CF 3 COO − , C 7 H 15 OSO 2− and SO 4 2− , and wherein the acrylate based monomer is selected from the group consisting of a compound as represented in Formulas 2 and 3 and a mixture thereof where o, p and q are a positive number of 0 to 2, respectively and independently, x is a (II) connector referred as single bond, —(CH 2 ) r —, —(C 2 H 4 O) r —, —(C 3 H 6 O) r — or —(C 4 H 8 ) r —, wherein r is a positive number of 1 to 5, R 9 is a hydrogen or methyl group, R′ 10 and R″ 10 are hydrogen, R′ 11 , R″ 11 , R′″ n and R″″ 11 are respectively and independently a hydrogen or methyl group, wherein one of R′ 10 , R″ 10 , R′ 11 , R″ 11 , R′″ 11 and R″″ 11 are substituted with the x group, and R′ 12 , R″ 12 , R′″ 12 , and R″″ 12 , are hydrogen; halogen; a substituted or unsubstituted C1-C20 hydrocarbon group, bonding directly to a cyclic structure or bonding by a connector including oxygen, nitrogen and sulfur or silicon; or a polar group, respectively and independently.