专利检索 ap:("NISSAN CHEMICAL INDUSTRIES LTD.") AND inv:"Sakaguchi, Yuriko c/o Nissan Chem.Ind.Ltd" 第 1 页

1.

发明公开
Agent and method for modifying surface layer of cement structures 失效
标题翻译：用于修改水泥结构表面层的代理和方法

公开(公告)号：EP0072138A3

公开(公告)日：1983-09-21

申请号：EP82303935

申请日：1982-07-26

申请人： NISSAN CHEMICAL INDUSTRIES LTD.

发明人： Obitsu, Masamichi c/o Nissan Chem.Ind.Ltd , Hori, Takahiro c/o Nissan Chem.Ind.Ltd , Koinuma, Toyoji c/o Nissan Chem.Ind.Ltd , Sakaguchi, Yuriko c/o Nissan Chem.Ind.Ltd

IPC分类号： C04B41/04 , C04B41/24

CPC分类号： C04B41/009 , C04B41/5089 , C04B41/68 , C04B41/4811 , C04B28/02

摘要： An agent and method for modifying a surface layer of hardened cement structures or substrates with use of the agent which comprises in a specified ratio of alkali silicate solution and a sodium naphthalenesulfonate formaldehyde condensate. Said agent has an excellent stability and a remarkable permeability into the cement structure to form a deeper strengthened surface layer thereon.