C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/00 (2006.01) C04B 35/111 (2006.01) C04B 35/26 (2006.01) C04B 35/45 (2006.01) C04B 35/565 (2006.01) C04B 35/581 (2006.01) C04B 35/634 (2006.01) C08L 23/36 (2006.01)
Patent
CA 2083429
2458B Title: METHODS OF PREPARING SINTERED SHAPES AND MethodS USED THEREIN Abstract of the Invention The invention relates to (1) a method of preparing sintered shapes, comprising the steps of forming a green body from a mixture comprising (A) a major amount of at least one inorganic powder with (B) at least one reaction product of a alkanol- amine with a hydrocarbyl-substituted carboxylic acylating agent provided that when the hydrocarbyl group of the acylating agent contains less than 40 carbon atoms then the carboxylic acylating agent is a polycarboxylic acylating agent; and (2) sintering the body. Sintered shapes made from the methods of the present invention have relatively high fired densities and small uniform grain sizes; and low porosity. The reaction products of the present invention help disperse the inorganic powder. These reaction prod- ucts also improve deagglomeration of the inorganic powder and help prevent reagglomeration of the powder.
Burk W. Michael
Quinn Robert E.
Ridout & Maybee Llp
The Lubrizol Corporation
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