Oxygen permeability of electron beam cured gelatin methacrylate layers

✍ Scribed by Tom Scherzer; Rolf Schubert

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 199 KB
• Volume: 9
• Category: Article
• ISSN: 1042-7147
• DOI: 10.1002/(sici)1099-1581(1998100)9:10/11<777::aid-pat830>3.0.co;2-c

✦ Synopsis

The oxygen permeability of electron beam cured layers of gelatin methacrylate was studied. Gelatin coatings on various polymer foils or paper were found to have excellent gas barrier properties. The influence of factors such as the substrate material, the coating thickness and the composition of the gelatin formulation on the permeability was investigated. Moreover, the water vapor transmission of gelatin layers was determined. Their high moisture permeation can only be reduced by an additional barrier layer against water vapor. Laminates were prepared of polymer films and/or paper using the methacrylated gelatin as barrier and adhesive layer. Such laminates show very low permeabilities for oxygen and water vapor. If substrate foils of biodegradable polymers are used, completely biodegradable laminates with a reasonable oxygen transmission can be made.