Moisture-absorption sheet
AssigneeKoninklijke Philips Electronics N.V.
InventorsHenricus Albertus Maria Van Hal, Rifat Ata Mustafa Hikmet
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Abstract
The invention relates to a moisture-absorption sheet comprising a small fraction of an organic polymer having a high weight-averaged molecular weight and a large fraction of particles of a moisture absorbing substance. In spite of the high content of moisture-absorbing material, the moisture-absorption sheet according to the invention is not susceptible to crack formation and disintegration, and may have a high porosity. Due to these properties, the moisture-absorption sheet according to the invention is particularly useful for use in an organic electroluminescent device.
Claims11
A moisture-absorption sheet comprising an organic polymer and comprising particles of moisture-absorbing material dispersed into the organic polymer, characterized in that the organic polymer is an Ultra-High-Molecular-Weight (UHMW) polymer having a weight-averaged molecular weight of more than 0.1 million.
Dependencies are inferred from the claim text.