Phosphoric acid esters, method of producing them, and use...

Details Phosphoric acid esters, method of producing them, and use... Phosphoric acid esters, method of producing them, and use...

C - Chemistry, Metallurgy

07

F

134/43, 117/45,

C07F 9/09 (2006.01) B01F 17/00 (2006.01) B01F 17/14 (2006.01) C08G 18/28 (2006.01) C08G 18/38 (2006.01) C08G 63/692 (2006.01) C09C 3/08 (2006.01) C09D 7/02 (2006.01)

Patent

CA 2022957

Phosphoric acid esters and their salts corresponding to the formula (I): Image wherein R represents an aliphatic, cycloaliphatic and/or aromatic moiety having no Zerewitinoff hydrogen, containing at least one ether oxygen atom (-O-) and at least one carboxylic acid ester group (-COO-) and/or urethane group (-NHCOO-), and having an average molecular weight ~ n of 200 to 10,000, wherein the hydrogen atoms may be partially replaced by halogen atoms, and wherein the ratio of the number of ether oxygen atoms to the number of the carboxylic acid ester groups and/or urethane groups in the molecule (or in every group R) is in the range from 1:20 to 20:1, and n represents 1 or 2. A method for preparing such phosphoric acid esters and salts and the use of such phosphoric acid esters or salts as dispersants or dispersing aids is also disclosed.

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