| abstract |
A method of producing olefin-unsaturated acid copolymer wherein an olefin and an unsaturated acid anhydride are polymerized in the presence of a radical type polymerization catalyst, the improvement which comprises incorporating into the polymerization reaction mixture, an effective amount of a molecular weight lowering agent selected from the group consisting of (1) Groups I-IV metal salts, hydroxides or oxides; and (2) compounds having amine or ammonium groups, whereby the molecular weight of the copolymer is lowered. |