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Aqueous coating compositions containing water dispersible polyurethane polyureas as binders and the coatings produced therefrom

  • US 5,141,987 A
  • Filed: 10/26/1990
  • Issued: 08/25/1992
  • Est. Priority Date: 11/04/1989
  • Status: Expired due to Term
First Claim
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1. An aqueous coating composition comprising an aluminum pigment and a water dispersible polyurethane polyurea binder which contains(i) at least 200 milliequivalents of chemically incorporated carbonate groups, --O--CO--O--, per 100 g of solids and(ii) a combined total of up to 320 milliequivalents, per 100 g of solids, of chemically incorporated urethane groups, --NH--CO--O--, and chemically incorporated urea groups, --NH--CO--NH--.

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