Sheet materials according to the present invention comprise a sheet material substrate, such as for example a film or paper sheet, with a polymer release coating overlying and adhered to a surface of the sheet material substrate. Single and multilayer release coatings can be formed on the substrate...http://www.google.com.au/patents/US5811183?utm_source=gb-gplus-sharePatent US5811183 - Acrylate polymer release coated sheet materials and method of production thereof 
