公开(公告)号：NO924368A

公开(公告)日：1993-05-24

申请号：NO924368

申请日：1992-11-12

Applicant: LUBRIZOL CORP

Inventor： HIGGINS WILLIAM A ,  WALSH REED H ,  BIASE STEPHEN A DI ,  HELLER FRED E ,  KORNBAKKE RALPH E

IPC: C04B35/632 ,  C04B35/00 ,  C04B35/64

CPC classification number: C04B35/632 ,  Y10T428/31504 ,  Y10T428/31938

公开(公告)号：NO924368D0

公开(公告)日：1992-11-12

申请号：NO924368

申请日：1992-11-12

Applicant: LUBRIZOL CORP

Inventor： HIGGINS WILLIAM A ,  WALSH REED H ,  BIASE STEPHEN A DI ,  HELLER FRED E ,  KORNBAKKE RALPH E

IPC: C04B35/632 ,  C04B

Abstract: 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. (

公开(公告)号：NO924368L

公开(公告)日：1993-05-24

申请号：NO924368

申请日：1992-11-12

Applicant: LUBRIZOL CORP

Inventor： HIGGINS WILLIAM A ,  WALSH REED H ,  BIASE STEPHEN A DI ,  HELLER FRED E ,  KORNBAKKE RALPH E

IPC: C04B35/632 ,  C04B35/00 ,  C04B35/64

Abstract: 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. (