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Machine translation
1. (WO1981002395) POLYMERIC DISPERSING AGENT,METHODS OF PREPARING THE SAME AND DISPERSION CONTAINING SAID DISPERSING AGENT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/002395    International Application No.:    PCT/DK1981/000024
Publication Date: 03.09.1981 International Filing Date: 27.02.1981
IPC:
B01F 17/00 (2006.01), C08G 69/44 (2006.01), C09B 67/46 (2006.01)
Applicants:
Inventors:
Priority Data:
857/80 28.02.1980 DK
Title (EN) POLYMERIC DISPERSING AGENT,METHODS OF PREPARING THE SAME AND DISPERSION CONTAINING SAID DISPERSING AGENT
(FR) AGENT DE DISPERSION POLYMERE, PROCEDES DE PREPARATION ET DISPERSION CONTENANT CET AGENT
Abstract: front page image
(EN)A polymeric dispersing agent consisting of an oligo or polyamide chain, wherein all nitrogen atoms are part of amido bonds, said oligo or polyamide chain being connected with at least one polymeric chain, each polymeric chain having a molecular weight of at least 1000. The dispersing agent shows high affinity to particles of "acidic" character, such as certain pigments, and is therefore capable of effectively dispersing such particles in organic liquids. The dispersing agent is prepared (1) by reacting a diamine with an amino acid and optionally reacting the reaction product thus formed with a dicarboxylic acid so as to form a reaction product which is reacted with a polyester forming hydroxycarboxylic acid, or (2) by reacting a diamine with a dicarboxylic acid so as to form an oligo or polyamide which is reacted with a polyester forming hydroxycarboxylic acid. A dispersion of solid particles in an organic liquid and the polymeric dispersing agent contains from 1 to 20% by weight of the dispersing agent based on the weight of solid particles.
(FR)Un agent de dispersion polymere consiste en une chaine oligo ou polyamide, dans laquelle tous les atomes d"azote font partie des liaisons amido, ladite chaine oligo ou polyamide etant reliee a au moins une chaine polymere, chaque chaine polymere ayant un poids moleculaire d"au moins 1000. L"agent de dispersion presente une grande affinite vis a vis des particules de caractere "acide", tel que certains pigments, et est par consequent capable de disperser efficacement de telles particules dans des liquides organiques. L"agent de dispersion est prepare (1) en faisant reagir une diamine avec un amino acide et eventuellement en faisant reagir le produit de la reaction ainsi forme avec un acide dicarboxylique de maniere a former un produit de reaction qui reagit avec un polyester pour former un acide hydroxycarboxylique, ou (2) en faisant reagir une diamine avec un acide dicarboxylique de maniere a former un oligo ou polyamide qui reagit avec un polyester formant de l"acide hydroxycarboxylique. Une dispersion de particules solides dans un liquide organique et l"agent de dispersion polymere contient de 1 a 20% en poids de l"agent de dispersion base sur le poids des particules solides.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)