公开(公告)号：DE2351077A1

公开(公告)日：1975-04-24

申请号：DE2351077

申请日：1973-10-11

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  MARX MATTHIAS DR ,  SPOOR HERBERT DR ,  ROSCHKE WILFRIED ,  JUNG HANS DR-ING

IPC: C08J3/05 ,  C08L79/08 ,  C09D5/25 ,  H01B3/30 ,  C08G79/08 ,  C09J3/16

Abstract: Aq. polyesterimide dispersions contg. 20-60 wt.% polyesterimide as fine particles having particle size 5 mu, and opt. small amounts of flow control agents, dispersants and/or esterification catalysts, are prepd. by (1) breaking up a solidified melt of polyesterimide in dry condition at 100 degrees C to particle size 100 mu (2) grinding with water at 80 degrees C to particle size 5 (0.05-1.5) mu. Pref. used in prepn. of temp-resistant luting and impregnating compsns., for bonding and laminating foils, webs, papers and fibrous materials. Conc. dispersions are more easily processed than solns.; risk of fire is obviated.

公开(公告)号：DE2351078A1

公开(公告)日：1975-04-24

申请号：DE2351078

申请日：1973-10-11

Applicant: BASF AG

Inventor： KOVACS JENOE DR ,  MARX MATTHIAS DR ,  SPOOR HERBERT DR ,  ROSCHKE WILFRIED ,  JUNG HANS DR-ING

IPC: C08J3/05 ,  C08L79/08 ,  C09D5/25 ,  H01B3/30 ,  C09D3/70

Abstract: Heat-hardenable coating compsns., present as aq. dispersions, consist, by wt., of (A) 50-80% water and (B) 20-50% polyesterimide present as particles having dia. =5 mu. (B) contains 0.2-10 wt.% of at least one esterification catalyst. Dispersion has pH 5-9. Used for wire lacquering, insulating metal conductors, esp. wires and rails. Dispersions have good processing ability and storage stability. Gloss and smoothness of stoved lacquers cannot be distinguished from lacquer of same binder applied from soln.