Production of thin films

Details Production of thin films Production of thin films

B - Operations, Transporting

05

D

117/122, 117/183

B05D 1/20 (2006.01)

Patent

CA 1338082

Thin films are produced by a process in which organic polymers having long-chain side groups are dissolved in an organic solvent, the solution is spread at the water/air interface by the Langmuir- Blodgett technique and the film is transferred onto a solid base material after evaporation of the organic solvent, and the organic polymers used are those which contain long- chain n-alkyl side groups bonded to the main chain of the polymer via polar groups, and some of these long-chain n- alkyl side groups are replaced by shorter-chain n-alkyl side groups, by branched alkyl side groups having the same or a smaller number of carbon atoms or by equally long or shorter side groups having one or more C-C multiple bonds. This process can be used to produce film ele- ments, for example for optical filters.

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