首页>
外国专利>
protective coatings for economic development is to:
protective coatings for economic development is to:
展开▼
机译：经济发展的防护涂料是：
展开▼
页面导航
摘要
著录项
相似文献
摘要
Water-sensitive cellulosic substrates coated on at least one surface with a barrier coating (e.g., vinylidene chloride copolymer or aluminum or iron orthophosphate) applied from an organic solvent wherein the substrate surface is first impregnated with about 0.15 to 1.5 g./m.2 of an alkali metal silicate (e.g., Na2SiO3 or Li2SiO3) wherein the mole ratio of SiO2 to alkali metal oxide is from about 1.6 to 4.6. A preferred coated substrate may be represented by the following sequence of layers: }vinylidene chloride copolymer coating }orthophosphate layer }alkali metal silicate coating }cellophane substrate }alkali metal silicate coating }orthophosphate layer }vinylidene chloride copolymer coating }
展开▼
