Patent ID: 9211502
Filing Date: 2015-12-15
Classification: A61L,B01D,B01J,B32B,E04B,E04F,Y10T

Abstract:
1. A covering for application on a surface and reduction or prevention of a singularity or a plurality of emissions released from said surface, said covering comprising: a trapping agent; a carrier for retaining and supporting said trapping agent, such that said trapping agent can trap said singularity or plurality of emissions without being released from said carrier, wherein said trapping agent includes an absorbing agent or an adsorbing agent, or a combination thereof, such that said trapping agent is capable of fully or partly trapping said singularity or plurality of emissions by absorption or adsorption, or by a combination of absorption and adsorption, and said carrier includes a sheet having a first side and an opposite second side, said first side is for application on said surface such that said first side is facing said surface and said second side is facing away from said surface; and a semi-permeable barrier on said second side, wherein said semi-permeable barrier is permeable to water in gaseous form, such that said covering can trap said singularity or plurality of emissions while said covering is simultaneously allowing escape of water in gaseous form from said surface, said semi-permeable barrier is non-permeable to oxygen, or permeable to only a low extent to oxygen, and said semi-permeable barrier is substantially homogeneous, such that molecules pass through said semi-permeable barrier by diffusion in the material said semi-permeable barrier is made of.