5392results about How to "Prevent aging" patented technology

The memory device has a plurality of dielectric films including charge storage layers CS having a charge holding capability therein and stacked on an active region of a semiconductor SUB and electrodes G on the plurality of dielectric films. Each charge storage layer CS includes a first nitride film CS1 made of silicon nitride or silicon oxynitride and a second nitride film CS2 made of silicon nitride or silicon oxynitride and having a higher charge trap density than the first nitride film CS1. The first nitride film CS1 is formed by chemical vapor deposition using a first gas which contains a first silicon-containing gas containing chlorine with a predetermined percent composition and a nitrogen-containing gas as starting materials. The second nitride film CS2 is formed by chemical vapor deposition using a second gas which contains a second silicon-containing gas having a lower chlorine percent composition than the above predetermined percent composition and a nitrogen-containing gas as starting materials.

A coated panel may include a substrate and a decorative top layer provided on the substrate. A method for manufacturing the panel may involve forming at least a portion of the top layer by printing on the substrate to provide a structure on the substrate. The structure may include protrusions formed by two or more prints provided on top of each other.

A coated panel may include a substrate and a decorative top layer provided on the substrate. A method for manufacturing the panel may involve forming at least a portion of the top layer by printing on the substrate to provide a structure on the substrate. The structure may include protrusions formed by two or more prints provided on top of each other.

The invention discloses an ethylene-vinyl acetate copolymer packaging thin film, which is used for packaging solar cell components. The thin film is prepared from the following raw materials in part by weight: 100 parts of an ethylene-vinyl acetate copolymer, 0.1 to 2.0 parts of crosslinking agent, 0.1 to 10.0 parts of aid crosslinking agent and a proper amount of aid. The ethylene-vinyl acetate copolymer contains 25 to 33 percent of vinylacetate, and the ratio of the amount of the aid crosslinking agent and the crosslinking agent is 1:10 to 10:1. In the invention, the introduction of the aid improves the network structure of crosslinked resin, improves crosslinking efficiency, greatly reduces the dosage and residue of the crosslinking agent greatly and avoids aging phenomenon caused by residual crosslinking agent, and the prepared thin film has higher dampness and heat resistance, high ultraviolet resistance, high thermal-oxidative aging resistance and the like and has long service life.

The invention discloses a novel rubber protective wax which comprises the following components in percentage by weight: 14-20 percent of paraffin, 55-60 percent of mixed crystal wax, 24-30 percent ofmicrocrystalline wax and 1-2 percent of polyethylene wax. The invention has favorable seal performance and can reinforce the ozone and ageing resistance of a rubber product and prolong the service life of the rubber product.

The invention relates to a vinegar melody, biological vinegar and the preparing method, which dissolve the problem that glacial acetic acid or the like in the edible vinegar has side effect for the human. The vinegar melody is made by Avena sativa, wheat, black rice, peart barley, soya bean, black soya bean, green bean, red bean, broad bean, pea, tea, traditional Chinese medicine herbal pieces prepared for decoction and vinegar melody bacterial. The preparing method of the vinegar melody comprises the following steps: 1, boiling after disintegrating high starch raw material and infiltrating with the water; 2, adding the other raw material, water and vinegar melody bacterial and fermenting. The biological vinegar is made by vinegar melody, Daqu, Shenqu, bran melody, wine yeast, aspergillus oryzae, Chinese sorghum, corn, millet, glutinous millet, peart barley, glutinous rice, black rice, citrate bacterial, yeast, acetic acid bacteria and fruit normal juice. The preparing method of the biological vinegar comprises the following steps: 1, boiling after disintegrating high starch raw material and infiltrating with the water; 2, adding the other raw material and saccharifying and acetous fermenting zymogeneous bacteria; 3, adding the salt and afterripening; 4, drenching the vinegar; ageing; sterilizing and filtering. The local flavor of the biological vinegar comes from the raw material and the metabolite of the microorganism completely without the glacial acetic acid or the like, and the biological vinegar doesn't have the side effect for the human and has the delicious taste and more than 8. 13g / 100ml high vinegar yield.

This invention relates to a dope combination. The film coating it formed is amorphous gelatinous substance, base unit is three-dimensional network formed by connection of silicon - oxygen tetrahedron and aluminium - oxygen tetrahedron. end product takes electrovalent bond and covalent bond as main, vander waas bond as complement, possess linkage structure of organic heavy polymer, and double property of inorganic polymer and organic polymer. The unique performance supple the insufficiency of organic high molecular polymer. It possesses favorable performance of acid-proof, alkali-proof, impervious, antifreeze, seawater resistance and high temperature resistance.