188results about How to "Low water vapor transmission rate" patented technology

The invention discloses a high-barrier biodegradable free-standing bag and a preparation method thereof. The free-standing bag is composed of two parts of a high-barrier biodegradable self-sealing strip and a five-layer composite high-barrier biodegradable bag body, the main substrate of the high-barrier biodegradable self-sealing strip is PLGA and PPC with excellent barrier property, the five-layer composite high-barrier biodegradable bag body is composed of single-light white kraft paper, a bonding layer, a first barrier layer, a second barrier layer and a heat seal layer, and is integrallyformed by adopting the four-layer co-extrusion and film-coating combined process. Compared with a traditional non-degradable free-standing bag, the prepared high-barrier biodegradable free-standing bag has the advantages that the physical mechanical property and the heat sealing performance are substantially equivalent, the barrier property is more excellent, biodegradation can be achieved, the problem of "white pollution" caused by waste of traditional free-standing bags is solved, and the application of the biodegradable plastic in the field of high-barrier food packaging is expanded, so that the high-barrier biodegradable free-standing bag has very important significance.

Disclosed are a flexible active element array substrate and an organic electroluminescent element. The array substrate comprises a flexible substrate, an active element array layer, a block layer and a plurality of pixel electrode, wherein the active element array layer is arranged on the flexible substrate, the block layer covers the active element array layer and comprises a multi-layer organic material layer and a multi-layer inorganic material layer, which are alternatively stacked on the active element array layer, and the pixel electrode is arranged on the block layer and electrically connected with the active element array layer. The flexible active element array substrate is flexible and is low in steam permeability.

A method and apparatus for depositing an inorganic layer onto a substrate is described. The inorganic layer may be part of an encapsulating film utilized in various display applications. The encapsulating film includes one or more inorganic layers as barrier layers to improve water-barrier performance. An oxygen containing gas, such as nitrous oxide, is introduced during the deposition of the inorganic layer. As a result, the inorganic layer is lower in stress and may obtain a water vapor transmission rate (WVTR) of less than 100 mg / m2-day.