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公开(公告)号:US3935021A
公开(公告)日:1976-01-27
申请号:US412968
申请日:1973-11-05
申请人: Dale R. Greve , Eugene D. O'Neill
发明人: Dale R. Greve , Eugene D. O'Neill
CPC分类号: C04B28/14 , C04B2111/0062 , C04B2111/27
摘要: The water resistance of gypsum products, such as gypsum wallboard, is improved by incorporating in the composition from which the gypsum product is made polyvinyl alcohol and wax-asphalt emulsion.
摘要翻译: 通过将石膏制品制成聚乙烯醇和蜡 - 沥青乳液的组合物掺入,石膏墙板等石膏制品的耐水性得到改善。