Aqueous fluorochemical compositions and abrasion-resistant coatings therefrom

US5760126A · kind A · utility

Assignee

• Minnesota Mining and Manufacturing Company · US

Inventors

• Lori P. Engle · Little Canada, US
• Steven J. Hamrock · Saint Paul, US
• George G. I. Moore · Afton, US
• Mark J. Pellerite · Woodbury, US
• Dong-Wei Zhu · North Oaks, US

Key dates

• Filing date: Dec 20, 1996
• Grant date: Jun 2, 1998
• Expiry date: Dec 20, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L39/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) a sol comprising a colloidal dispersion of surface-modified, inorganic microparticles in liquid; at least one of the components (a), (b), and (c) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.