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公开(公告)号:US4042409A
公开(公告)日:1977-08-16
申请号:US672540
申请日:1976-04-01
申请人: Ichiro Terada , Tadashi Yamada , Michio Nishi , Mitsuo Uchida , Naomasa Sugiyama , Mamoru Kaneko , Nobuhiko Takeda
发明人: Ichiro Terada , Tadashi Yamada , Michio Nishi , Mitsuo Uchida , Naomasa Sugiyama , Mamoru Kaneko , Nobuhiko Takeda
CPC分类号: C04B28/14 , B32B13/08 , C04B2111/0062 , C04B2111/27
摘要: A water repellent gypsum composition comprising a gypsum, and a paraffin emulsion prepared by emulsifying (a) paraffin hydrocarbon having a melting point of 40.degree.-80.degree. C and (b) an oxidized paraffin having an acid value of 10-70 at a ratio of from 97:3 to 50:50 by weight, respectively, in the presence of a water soluble alkali compound. Optionally, a polymer emulsion or solution may be added.
摘要翻译: 一种防水石膏组合物,其包含石膏和通过乳化(a)熔点为40-80℃的烷烃和(b)具有酸值为10-70的氧化石蜡的比例制备的石蜡乳液 分别为97:3至50:50,在水溶性碱性化合物的存在下。 任选地,可以加入聚合物乳液或溶液。