Patent ID: 6686302
Filing Date: 2004-02-03
Classification: B05D,Y10T

Abstract:
Substrate (44) with a deposited organic diffusion barrier layer (58) which has a non-polar basic structure with a high barrier effect against highly volatile gases, vapors and fluids, where the diffusion barrier layer (58) consists of a hydrocarbon polymer produced by means of plasma polymerization which contains 0.01-6 at % of at least one element of the group consisting of oxygen, nitrogen, fluorine, chlorine, bromine, boron and silicon, in total however maximum 12 at %,the improvement comprising: the diffusion barrier layer based on carbon and hydrogen has a content of 20-80 at % of both elements, whereby the barrier effect of the diffusion barrier layer (58) is sustained in air having a relative humidity of 50% and higher.