Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1991-11-22
1994-08-30
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
419 10, 419 36, 419 37, C04B 3564
Patent
active
053425634
ABSTRACT:
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 alkanolamine 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 products also improve deagglomeration of the inorganic powder and help prevent reagglomeration of the powder.
REFERENCES:
patent: 3330892 (1967-07-01), Herrmann
patent: 3895127 (1975-07-01), Benedict
patent: 4040998 (1977-08-01), Nemeth
patent: 4448609 (1984-05-01), Tear et al.
patent: 4654075 (1987-03-01), Cipollini
patent: 4749664 (1988-06-01), Ross et al.
patent: 4828633 (1989-05-01), Forsberg
patent: 4836966 (1989-06-01), Shimuzu et al.
patent: 4908338 (1990-03-01), Ross et al.
patent: 4917842 (1990-04-01), Currie
patent: 4919178 (1990-04-01), Riga et al.
patent: 5106549 (1992-04-01), Daamen
patent: 5132072 (1992-07-01), Fukuoka
Dispersion of Ceramic Particles in Organic Liquids, Mat. Res. Soc. Symp. Proc. vol. 73 (1986) Materials Research Society.
Dispersions of Ceramic Powders in Organic Media, Advances in Ceramics vol. 21: Ceramic Powder Science Copyright 1987, The American Ceramic Society, Inc. pp. 411-415.
Dispersants in Ceramics Processing, British Ceramics Proceedings Published by British Ceramics Society, vol. 37 (1986) pp. 249-253.
Tape Casting: The Basic Process for Meeting the needs of the Electronics Industry, Ceramic Bulletin, vol. 69, No. 6, 1990, pp. 1022-1026, by R. Mistler.
Burk W. Miachel
Quinn Robert E.
Collins Forrest L.
Cordek James L.
Derrington James
Hunter Frederick D.
The Lubrizol Corporation
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