Poly fluorine-containing siloxane coatings

US10150889B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Ya Qun Liu · Shanghai, CN
• Bright Zhang · Shanghai, CN
• Huifeng Duan · Shanghai, CN
• Wanchao Jiang · Shanghai, CN
• Yunzi Jiang · Shanghai, CN
• Zhe Ding · Shanghai, CN
• David K. Chen · Vancouver, US
• Yanming Shen · Brooklyn, US
• Wei-Jun Wang · Nanhu, CN

Key dates

• Filing date: Sep 8, 2014
• Grant date: Dec 11, 2018
• Expiry date: Feb 10, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K2003/385
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Poly fluorine-containing siloxane coatings having improved hydrophobic and oleophobic properties and solutions for creating such coatings are provided. In some embodiments, the coating includes a polymer having a plurality of Si—O—Si linkages; and at least two fluorine-containing moieties, each attached to at least one of the Si—O—Si linkages. Each fluorine-containing moiety independently includes a linking portion attached to a silicon of one of the Si—O—Si linkages, wherein the linking portion is of a formula selected from the group consisting of: —[CH2]a— where a is an integer from 1 to 10 and —[CH2]bCONH[CH2]c— where b and c are independently an integer from 0 to 10. Each fluorine-containing moiety also independently includes a fluorinated portion attached to the linking portion, wherein the fluorinated portion is selected from a fluorinated-alkyl group having 1-10 carbon atoms and a perfluoro-ether containing organic group.