Fluoropolymer coatings suitable for films of photovoltaic modules

US9221990B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Naiyong Jing · Woodbury, US
• Mark W. Muggli · West St. Paul, US
• Larry S. Hebert · Hudson, US
• Kevin M. Hamer · Windom, US
• Thomas J. Blong · Woodbury, US
• Michael Juergens · Rheydt, DE
• George V. D. Tiers · Windom, US
• Zhigang Yu · 安丰镇, CN
• Yaming Wang · Beijing, CN
• Yiwen Chu · Cambridge, US

Key dates

• Filing date: Nov 14, 2012
• Grant date: Dec 29, 2015
• Expiry date: Nov 14, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/50
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Presently described are methods of making coating comprising aqueous fluoropolymer latex dispersions, aqueous fluoropolymer coating compositions, coated substrates, and (e.g. backside) films of photovoltaic cells. In one embodiment, the film comprises at least one fluoropolymer comprising repeat units derived from VF, VDF, or a combination thereof; inorganic oxide nanoparticles; and a compound that reacts with the repeat units derived from VF and VDF to crosslink the fluoropolymer and/or couple the fluoropolymer to the inorganic oxide nanoparticles. In another embodiment, the backside film comprises at least one fluoropolymer comprising repeat units derived from VF, VDF, or a combination thereof; and an amino-substituted organosilane ester or ester equivalent crosslinking compound.