A process is provided for preparing polymer composites from compositions
comprising i) a polyolefin, ii) a polymer selected from the group
consisting of polymers having hydroxyl groups and polymers having amino
groups and iii) a polar ethylene copolymer having copolymerized units
selected from the group consisting of C.sub.4-C.sub.8 unsaturated
anhydrides, monoesters of C.sub.4-C.sub.8 unsaturated acids having at
least two carboxylic acid groups, diesters of C.sub.4-C.sub.8 unsaturated
acids having at least two carboxylic acid groups and mixtures thereof.
The process is suitable for use with recycle streams that contain
polymeric materials that are laminates or composites of dissimilar
polymers.