发明授权
US4102701A Plaster compositions containing oxo-polycarboxylic acids as a set
retarder
失效
含有氧代多元羧酸作为凝结缓凝剂的石膏组合物
- 专利标题： Plaster compositions containing oxo-polycarboxylic acids as a set retarder
- 专利标题（中）： 含有氧代多元羧酸作为凝结缓凝剂的石膏组合物
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申请号： US667777申请日： 1976-03-17
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公开(公告)号： US4102701A公开(公告)日： 1978-07-25
- 发明人: Colin Dennis Campbell , Michael Anthony Finan , Kenneth William Shelton
- 申请人： Colin Dennis Campbell , Michael Anthony Finan , Kenneth William Shelton
- 申请人地址： NY Ardsley
- 专利权人： Ciba-Geigy Corporation
- 当前专利权人： Ciba-Geigy Corporation
- 当前专利权人地址： NY Ardsley
- 优先权： GB11373/75 19750319
- 主分类号： C04B24/04
- IPC分类号： C04B24/04 ; C04B11/14
摘要：
Oxo-polycarboxylic acids act as set control agents, preferably as set retarders for plasters. Examples of usable acids are 2,2,6,6-tetra(.beta.-carboxyethyl)cyclohexanone, 2,2-di(.beta.-carboxyethyl)-3,5,5-trimethylcyclohexanone or 3-acetyl-3(.beta.-carboxyethyl)-pimelic acid. Also the salts of these acids are usable. The set control agents are added to the plaster in amounts of 5 to 5000 ppm.
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