Phosphoric esters

Details Phosphoric esters Phosphoric esters

C - Chemistry, Metallurgy

07

F

C07F 9/09 (2006.01) B01F 17/00 (2006.01) C07F 9/6509 (2006.01) C07F 9/655 (2006.01) C08G 18/32 (2006.01) C08G 18/50 (2006.01) C08G 18/83 (2006.01) C08G 63/692 (2006.01) C09B 67/46 (2006.01) C09D 7/02 (2006.01) C09D 17/00 (2006.01)

Patent

CA 2182899

Phosphoric esters obtainable by a) reacting a mono-, oligo- or polyamine with an alkylene oxide or alkylene carbonate to give an amino alcohol or amino mono-, oligo-, or polyether alcohol, from 50 to 100% of the alkoxylatable NH groups of the amine being alkoxylated, b) reacting the resulting amino (ether) alcohol with a hydroxycarboxylic acid or a dicarboxylic acid and a diol to give a mono-, oligo- or polyester, or reacting it with a diisocyanate and a diol to give a di-, oligo- or polyurethane, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified or converted into urethane groups, and c) reacting the resulting amino (ether) ester or urethane with a phosphorus compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester or urethane being converted into phosphoric ester groups, and the phosphorus atoms being mono- and/or di- and, if appropriate, tri-esterified, preparation of the phosphoric esters, and their use as dispersants for solids.

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