Water-Based Adhesion promoter for polypropylene materials

摘要

Honda Giken Kogyo Kabushiki Kaisha, Tokyo, Japan, and Honda of America Mfg., Inc., Marysville, OH, have been awarded a patent for a method to coat polypropylene materials. It is comprised of pretreating in which a polypropylene material is beforehand cleaned, and then applying a water-based adhesion promoter, which is comprised of a grafted polypropylene chloride, which includes a polypropylene chloride moiety and a maleic anhydride moiety as bonded thereto, and which has a chlorine content of 15-25 weight percent and a maleic anhydride moiety content of one to five weight percent; an amine-neutralized water-soluble resin; a wettability-improving agent; and water.