Photocrosslinkable materials

US7687118B2 · kind B2 · utility

Assignee

• ROLIC AG · CH

Inventors

• Zoubair Cherkaoui · Allschwil, CH
• Thomas Bachels · Menzingen, CH
• Guy Marck · Schlierbach, FR
• Olivier Muller · Ennery, FR
• Andreas Schuster · Annaberg-Buchholz, DE
• Hubert Seiberle · Lörrach, DE

Key dates

• Filing date: Oct 5, 2005
• Grant date: Mar 30, 2010
• Expiry date: Oct 3, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/133788
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A diamine compound is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound. The compound is represented by one of the general formulae (Ia) and (Ib). It could be shown that such structures, in particular for a specific choice of the residue B, provide, if e.g. used as orientation layers, a photostable, vertically aligning material with an improved VHR.