Phosphoric esters

A process for the preparation of a phosphoric ester, which comprises:

• a) reacting (1) ammonia, or a primary or secondary amine, said amine being a mono-oligo-, or polyamine, with (2) a C.sub.2 -C.sub.8 alkylene oxide, styrene oxide, or C.sub.2 -C.sub.8 alkylene carbonate to give (3) an amino (ether) alcohol which is an amino alcohol, an amino mono-, oligo- or polyether alcohol, 100% of the alkoxylatable NH groups of the amine being alkoxylated,
• b) reacting the resulting amino (ether) alcohol (3) with (4A) a hydroxycarboxylic acid or ester thereof, to give (5A) a mono-, oligo- or polyester, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified, and
• c) reacting the resulting amino (ether) ester (5A) with (6) a phosphorous compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester (5A) being converted into phosphoric ester groups, and the phosphorous atoms being mono-, di-, and/or tri-esterified.

A phosphoric ester which is obtained by the process of:

• b) reacting an amino (ether) alcohol which is an amino alcohol, an amino ether alcohol or a polyamino polyether alcohol, wherein said alcohol contains only tertiary nitrogen atoms, with (4A) a hydroxycarboxylic acid or ester thereof, to give (5A) a mono-, oligo- or polyester, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified, and
• c) reacting the resulting amino (ether) ester (5A) with (6) a phosphorous compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester (5A) being converted into phosphoric ester groups, and the phosphorous atoms being mono-, di-, and/or tri-esterified.

A process for preparing a phosphoric ester, which comprises

• b) reacting an amino (ether) alcohol which is an amino alcohol, an amino ether alcohol or a polyamino polyether alcohol, wherein said alcohol contains only tertiary nitrogen atoms, with (4A) a hydroxycarboxylic acid or ester thereof, to give (5A) a mono-, oligo- or polyester, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified, and
• c) reacting the resulting amino (ether) ester (5A) with (6) a phosphorous compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester (5A) being converted into phosphoric ester groups, and the phosphorous atoms being mono-, di-, and/or tri-esterified.