Addition compounds suitable for use as dispersing agents and dispersion stabilizers, process for their production, their use and solids coated therewith
First Claim
1. An addition compound or salt thereof suitable for use as a dispersing aid or dispersion stabilizer obtained by reacting a polyisocyanate having an average functionality of from 2.5 to 10(a) with at least one monohydroxycompound of Formula I
wherein Y represents;
(i) an aliphatic or cycloaliphatic hydrocarbon group with 8 to 30 carbon atoms, the hydrogen atoms of which may be partially replaced by halogens or aryl residues, or(ii) an aliphatic, cycloaliphatic or aromatic group containing at least one --O--, --NHCOO-- or --COO-- group, having an average molecular weight Mn from 200 to 10,000, the hydrogen atoms of which may be partially replaced by halogens, in such an amount that 10 to 70% of the NCO-- groups are reacted;
(b) reacting the product of stage (a) with at least one compound of Formula II
space="preserve" listing-type="equation">G--(E).sub.n II whereinE represents --OH, --NH2, or --NHR (in which R represents an alkyl group having 1 to 4 carbon atoms),n represents 2 or 3, andG represents an aliphatic, cycloaliphatic or aromatic group containing at least 2 carbon atoms having an average molecular weight Mn of at most 3000, which may contain --O--, --COO--, --CONH--, --NHCOO--, --S--, --Si(CH3)2 O-- or --SO2 -- group, in such an amount that a further 1 to 50% of the NCO-- groups of the originally provided polyisocyanate are reacted,whereby in stages (a) and (b) all total from 20 to 85% of the NCO-- groups of the originally provided polyisocyanate are reacted, and(c) reacting the product of stage (b) with at least one compound of Formula III
space="preserve" listing-type="equation">Z--Q III of IV
space="preserve" listing-type="equation">Z--NH--Z IV whereinQ represents --OH, --NH2, --NHR (wherein R represents an alkyl group having 1 to 4 carbons atoms) or --SH, andZ may be the same or different and represents an aliphatic, cycloaliphatic or aromatic residue having at least one acidic functional group, OH-- group or --Si(OR)m (R'"'"')3-m -- group (wherein R and R'"'"' represent alkyl groups with 1 to 10 carbon atoms and m=1-3), in such an amount that at least 0.8 molecule of the compound Z--Q or Z--NH--Z is provided for each remaining isocyanate group not reacted in stages (a) and (b).
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Accused Products
Abstract
Addition compounds suitable for use as dispersing agents and dispersion stabilizers obtainable by reacting polyisocyanates having an average functionality from 2.5 to 10 with monohydroxy compounds, reacting the resulting reaction products with compounds of Formula II
G--(E).sub.n II
wherein E represents --OH, --NH2 and/or --NHR (wherein R represents an alkyl group having 1 to 4 carbon atoms), n represents 2 or 3, and G represents an aliphatic, cycloaliphatic and/or aromatic group, and further reacting the resulting reaction product with compounds of Formula III
Z--Q III
or IV
Z--NH--Z IV
wherein Q represents --OH, --NH2, --NHR (wherein R represents an alkyl group having 1 to 4 carbon atoms) or --SH, and Z represents a group which contains at least one acidic functional group, OH-group or Si(OR)m (R'"'"')3-m group (wherein R and R'"'"' represent alkyl groups having 1 to 10 carbon atoms and m=1-3). Optionally, OH-groups present in the reaction product may be further reacted with polycarboxylic acids or their anhydrides. The invention also relates to a process for producing these addition compounds, to their use, and to powdered or fibrous solids which are to be worked into liquid systems which are coated with these dispersing agents.
53 Citations
43 Claims
- 1. An addition compound or salt thereof suitable for use as a dispersing aid or dispersion stabilizer obtained by reacting a polyisocyanate having an average functionality of from 2.5 to 10
(a) with at least one monohydroxycompound of Formula I - space="preserve" listing-type="equation">Y--OH I
wherein Y represents; (i) an aliphatic or cycloaliphatic hydrocarbon group with 8 to 30 carbon atoms, the hydrogen atoms of which may be partially replaced by halogens or aryl residues, or (ii) an aliphatic, cycloaliphatic or aromatic group containing at least one --O--, --NHCOO-- or --COO-- group, having an average molecular weight Mn from 200 to 10,000, the hydrogen atoms of which may be partially replaced by halogens, in such an amount that 10 to 70% of the NCO-- groups are reacted; (b) reacting the product of stage (a) with at least one compound of Formula II
space="preserve" listing-type="equation">G--(E).sub.n IIwherein E represents --OH, --NH2, or --NHR (in which R represents an alkyl group having 1 to 4 carbon atoms), n represents 2 or 3, and G represents an aliphatic, cycloaliphatic or aromatic group containing at least 2 carbon atoms having an average molecular weight Mn of at most 3000, which may contain --O--, --COO--, --CONH--, --NHCOO--, --S--, --Si(CH3)2 O-- or --SO2 -- group, in such an amount that a further 1 to 50% of the NCO-- groups of the originally provided polyisocyanate are reacted, whereby in stages (a) and (b) all total from 20 to 85% of the NCO-- groups of the originally provided polyisocyanate are reacted, and (c) reacting the product of stage (b) with at least one compound of Formula III
space="preserve" listing-type="equation">Z--Q IIIof IV
space="preserve" listing-type="equation">Z--NH--Z IVwherein Q represents --OH, --NH2, --NHR (wherein R represents an alkyl group having 1 to 4 carbons atoms) or --SH, and Z may be the same or different and represents an aliphatic, cycloaliphatic or aromatic residue having at least one acidic functional group, OH-- group or --Si(OR)m (R'"'"')3-m -- group (wherein R and R'"'"' represent alkyl groups with 1 to 10 carbon atoms and m=1-3), in such an amount that at least 0.8 molecule of the compound Z--Q or Z--NH--Z is provided for each remaining isocyanate group not reacted in stages (a) and (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 39, 40, 41, 42, 43)
- 20. A process for producing addition compounds and salts thereof suitable for use as dispersing agents and as dispersion stabilizers, comprising reacting at least one polyisocyanate having an average functionality from 2.5 to 10
(a) with at least one monohydroxy compound of Formula I - space="preserve" listing-type="equation">Y--OH I
wherein Y represents (i) an aliphatic or cycloaliphatic hydrocarbon group with 8 to 30 carbon atoms, the hydrogen atoms of which may be partially replaced by halogens or aryl residues, or (ii) an aliphatic, cycloaliphatic or aromatic group containing at least one --O--, --NHCOO-- or --COO-- group, having an average molecular weight Mn from 200 to 10,000, the hydrogen atoms of which may be partially replaced by halogens, in such an amount that 10 to 70% of the NCO-- groups are reacted; (b) reacting the product of stage (a) with at least one compound of Formula II
space="preserve" listing-type="equation">G--(E).sub.n IIwherein E represents --OH, --NH2, or --NHR (in which R represents an alkyl group having 1 to 4 carbon atoms), n represents 2 to 3, and G represents an aliphatic, cycloaliphatic or aromatic group containing at least 2 carbon atoms having an average molecular weight Mn of at most 3000, which may contain --O--, --COO--, --CONH--, --NHCOO--, --S--, --Si(CH3)2 O-- or --SO2 -- groups, in such an amount that a further 1 to 50% of the NCO-- groups of the originally provided polyisocyanate are reacted, whereby in stages (a) and (b) all total from 20 to 85% of the NCO groups of the originally provided polyisocyanate are reacted, (c) reacting the product of stage (b) with at least one of the compound of Formula III
space="preserve" listing-type="equation">Z--Q IIIor IV
space="preserve" listing-type="equation">Z--NH--Z IVwherein Q represents --OH, --NH2, --NHR (wherein R represents an alkyl group having 1 to 4 carbons atoms) or --SH, and Z may be the same or different and represents an aliphatic, cycloaliphatic or aromatic residue having at least one acidic functional group, OH-- group or Si(OR)m (R'"'"')3-m -- group (wherein R and R'"'"' represent alkyl groups with 1 to 10 carbon atoms and m=1-3), in such an amount that at least 0.8 molecule of the compound Z--Q or Z--NH--Z is provided for each remaining isocyanate group not reacted in stages (a) and (b). - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
Specification