Search International and National Patent Collections

1. (WO2013155652) POLYURETHANE DISPERSANT AND PREPARATION METHOD THEREOF

Pub. No.:    WO/2013/155652    International Application No.:    PCT/CN2012/001356
Publication Date: Fri Oct 25 01:59:59 CEST 2013 International Filing Date: Tue Oct 09 01:59:59 CEST 2012
IPC: B01F 17/52
C08G 18/38
C08G 18/79
C08G 18/80
C09D 11/00
C09D 7/12
Applicants: WANG, Zhijun
王志军
Inventors: WANG, Zhijun
王志军
Title: POLYURETHANE DISPERSANT AND PREPARATION METHOD THEREOF
Abstract:
A polyurethane dispersant and a preparation method thereof. The polyurethane dispersant is terminated by a nitrogen-containing heterocyclic compound during synthesis; the nitrogen-containing heterocyclic compound is prepared by subjecting anhydride and a compound containing a primary amine and a secondary amine or a hydroxy or mercapto group to dehydration condensation; and the condensed product is the nitrogen-containing heterocyclic compound, containing a reactive hydrogen. The structural formula of the compound containing the primary amine and the secondary amine or hydroxy or mercapto group is shown by formula (I), where n = 1 to 5, and preferably 2 to 4; R1 and R2 are respectively alkyls containing 1 to 8 carbons; R1 and R2 are independent of each other or connected by a chemical bond to form one or more saturated or unsaturated 4-member to 8-member rings; and X represents N, O, or S.