Films including thermoplastic silicone block copolymers

US8067094B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Karl E. Benson · Windom, US
• Richard G. Hansen · Mahtomedi, US
• Stephen A. Johnson · Woodbury, US
• Charles M. Leir · New Richmond, US
• Richard Y. Liu · Woodbury, US
• Mark D. Purgett · Oakdale, US
• Hildegard Schneider · Steinen, DE
• Audrey A. Sherman · Windom, US

Key dates

• Filing date: Dec 21, 2006
• Grant date: Nov 29, 2011
• Expiry date: May 8, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31736
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A composite film includes a first film and a second film contiguous to the first film. The first film includes a light transmissive material. In one embodiment, the second film includes a polydiorganosiloxane polyamide block copolymer. In another embodiment, the second film includes a polydiorganosiloxane polyoxamide block copolymer.