公开(公告)号：DE2860225D1

公开(公告)日：1980-12-04

申请号：DE2860225

申请日：1978-06-14

Applicant: BASF AG

Inventor： ECKELL ALBRECHT DR ,  MATTHIES PAUL DR ,  PILZ GEORG ,  ROTZOLL RUDI-HEINZ DR

IPC: C08G69/00 ,  C08G69/28

Abstract: A process for the manufacture of nylons by heating an aqueous solution of a salt of an alkanedicarboxylic acid of 6 to 12 carbon atoms and a diamine of the formula NH2RNH2, where R is alkylene of 6 to 12 carbon atoms or is a radical to a temperature at which a nylon is formed, under superatmospheric pressure and with removal of water. The solution used is an aqueous solution of from 75 to 90 percent strength by weight of a salt of a dicarboxylic acid and a diamine, which solution has been obtained by neutralizing a less concentrated salt solution, which contains an appropriate dissolved excess of the particular dicarboxylic acid, with the corresponding diamine. The nylons obtained are used for the manufacture of moldings.

公开(公告)号：DE2728817A1

公开(公告)日：1979-01-04

申请号：DE2728817

申请日：1977-06-27

Applicant: BASF AG

Inventor： ECKELL ALBRECHT DIPL CHEM DR ,  MATTHIES PAUL DR ,  PILZ GEORG ING GRAD ,  ROTZOLL RUDI-HEINZ DIPL CHEM D

IPC: C07C55/02 ,  C07C51/00 ,  C07C51/41 ,  C07C55/14 ,  C07C67/00 ,  C07C209/00 ,  C07C211/09 ,  C07C211/36 ,  C07C231/00 ,  C07C231/02 ,  C07C231/24 ,  C07C233/36 ,  C07C233/41 ,  C08G69/28

Abstract: A process for the manufacture of a highly concentrated aqueous solution of a salt of a dicarboxylic acid and a diamine, as well as of a nylon precondensate, by reacting an alkanedicarboxylic acid of 6 to 12 carbon atoms and a diamine of the formula NH2RNH2, where R is alkylene of 6 to 12 carbon atoms or is An aqueous solution, of lower concentration, of a salt of a dicarboxylic acid and a diamine, containing an appropriate dissolved excess of the particular dicarboxylic acid, is reacted with the particular diamine in the molten state, in an equivalent amount to the dissolved dicarboxylic acid, the reaction being carried out under superatmospheric pressure and the final reaction temperature being kept at from 140 DEG to 210 DEG C. The solution obtained is used for the manufacture of a nylon.