Patent ID: 9708422
Date: 2017-07-18
CPC Classifications: C08F,C10M,C10N

Claim:
1. A method for aminating an acylated hydrocarbon polymer by reacting a primary or secondary aromatic amine which is solid at room temperature with an acyl group of said polymer, comprising the steps of: (a) supplying a melt of said acylated hydrocarbon polymer; (b) supplying a liquid solution of about 20 to about 60 percent by weight of said aromatic amine in a polar aprotic solvent which has a boiling point (at atmospheric pressure) of at least about 150 ° C., a melting point below about 40 ° C., and a dielectric constant of at least about 5 at 25 ° C.; (c) mixing the solution of said aromatic amine with the melt of said polymer in a mixing device at a temperature of about 140 ° C. to about 185 ° C.; whereby said aromatic amine reacts with acyl group of said polymer; and (d) cooling the resulting amine-reacted polymer.