The present invention provides a new chemical adsorbent which can form an extremely thin and transparent film in nanometer order which is fixed uniformly and firmly on a substrate, and give an alignment characteristic of high thermal stability to the thin film; as well as a liquid crystal alignment layer...http://www.google.ca/patents/US6495221?utm_source=gb-gplus-sharePatent US6495221 - Chemisorptive substance, aligned liquid-crystal film and liquid-crystal display element both made by using the same, and processes for producing these
