发明名称 |
Methods for preparing sintered shapes and compositions used therein. |
摘要 |
<p>The invention relates to a process for preparing sintered shapes, comprising the steps of: (1) forming a green body from a mixture comprising a major amount of at least one inorganic powder; and one or more additives selected from the group consisting of: (A) at least one reaction product of a hydroxy compound with a carboxylic acylating agent; (B) at least one Mannich reaction product; (C) at least one hydrocarbyl-substituted amine; (D) at least one aminophenol; (E) at least one reaction product of a nitrophenol and amino compound; (F) at least one basic nitrogen-containing polymer; (G) at least one carboxylic acylating agent; (H) at least one aromatic acid or derivative thereof; (I) at least one aromatic oxime; and (J) at least one overbased or gelled overbased metal salt of an acidic organic compound provided that when the carboxylic acylating agent is a hydrocarbyl-substituted carboxylic acylating agent and the hydrocarbyl group contains less than an average of 40 carbon atoms, then the carboxylic acylating agent is a polycarboxylic acylating agent; and (2) sintering the green body. Sintered shapes made from the compositions of the present invention have relatively high fired densities and grain sizes; and relatively low pore volume. (</p> |
申请公布号 |
EP0550820(A2) |
申请公布日期 |
1993.07.14 |
申请号 |
EP19920119723 |
申请日期 |
1992.11.19 |
申请人 |
THE LUBRIZOL CORPORATION |
发明人 |
HIGGINS, WILLIAM A.;WALSH, REED H.;DI BIASE, STEPHEN A.;HELLER, FRED E.;KORNBREKKE, RALPH E. |
分类号 |
C04B35/632 |
主分类号 |
C04B35/632 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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