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1.Paper coating compositions comprising an adhesive, an alkali metal silicate, and an attapulgite or zeolite material 失效
标题翻译: 纸涂料组合物包含粘合剂,碱金属硅酸盐和绿坡缕石或沸石材料公开(公告)号:US2699432A
公开(公告)日:1955-01-11
申请号:US22854251
申请日:1951-05-26
申请人: NCR CO
CPC分类号: D21H19/40 , B41M5/1555 , D21H19/58 , D21H19/64