| abstract |
The instant invention is an adhesion promoter system, and method of producing the same. The adhesion promoter system according to the present invention comprises an aqueous dispersion comprising the melt kneading product of: (a) at least 60 percent by weight of a first functionalized polyolefin, based on the total weight of the solid content; (b) optionally from 0.5 to less than 40 percent by weight of a second functionalized polyolefin, based on the total weight of the solid content, wherein said second functionalized polyolefin comprises homopolymers of propylene or copolymers of propylene with hexene, octene and/or other like alpha-olefins, the homopolymers or copolymers having a single unsaturation, a terminal succinic anhydride moiety, and additional succinic anhydride substitutions on the polypropylene backbone, where the succinic anhydride substitution ranges from about 5 to about 45 weight percent of second functionalized polyolefin; (c) from 0.1 to less than 20 percent by weight of a stabilizing agent, based on the total weight of the solid content; and (d) in the presence of water and optionally one or more neutralizing agents, for example, at a temperature in the range of 25° C to 200° C. |