Intermediate transfer member and method of production thereof

US12181811B2 · kind B2 · utility

Assignee

• HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

• Dima Libster · Nes Ziona, IL
• Jacob Ben-Yakar · Nes Ziona, IL
• Danny Feldman · Nes Ziona, IL
• Sergey Inotaev · Nes Ziona, IL
• Gabi Habibi · Nes Ziona, IL
• Dafna Shunary · Nes Ziona, IL

Key dates

• Filing date: Apr 1, 2020
• Grant date: Dec 31, 2024
• Expiry date: Sep 4, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/025
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There is described an intermediate transfer member for digital offset printing, comprising: a cured silicone release layer formed by curing a curable silicone release formulation comprising: a polyalkylsiloxane containing at least two vinyl groups having a weight average molecular weight of 60,000 g/mol or less; a polyalkylsiloxane containing two vinyl groups having a weight average molecular weight of at least 65,000 g/mol; a polyalkylsiloxane cross-linker containing at least two Si—H bonds; and a catalyst or a photoinitiator. There is also described a method of producing an intermediate transfer member, and a curable silicone release formulation for an intermediate transfer member.