Lubrizol Advanced Materials, Inc.

Jonathan J Bird

Gabor Erdodi

Naser Pourahmady

Israel J Skoff

Christopher Swech

Anthony D Pajerski

Darlene D Rota

Yutao Yang

Lisa A Blevins

Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.

Matted polyamide-pud

Copolymer dispersions containing polyamide segments in aqueous media form binders for coatings for various industrial and construction materials. The copolymers have a high percentage of amide linkages. The copolymers are linked into higher molecular weight species by reactions with polyisocyanates (which forms urea linkages if the other reactant is an amine or a urethane linkage if the other reactant is a hydroxyl group).

Aqueous copolymer coating compositions for industrial and construction applications

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Wooster, OH, United States of America

Jonathan J Bird