Coating compositions having chelant functionality
AssigneeRohm and Haas Company
InventorsAfia Sarpong Karikari, Theodore Tysak
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Abstract
The present invention provides a floor coating composition comprising (A) and aqueous solvent; and (B) a chelating polymer which comprises units derived from one or more aminocarboxylate compounds or their salts, one or more other polymerizable monomers, one or more ethylenically unsaturated monomers and, optionally, one or more crosslinking monomers. For example, the aminocarboxylate compounds or their salts may be one or more of iminodiacetic acid (IDA), iminodisuccinic acid (IDS), ethylenediamine triacetic acid (ED3A) and ethylenediamine disuccinic acid (EDDS), or their salts. Suitable polymerizable monomers may be one or more of glycidyl methacrylate (GMA), allyl glycidyl ether (AGE), vinylbenzyl chloride (VBC), allyl bromide, and their derivatives.
Claims10
A floor polish composition comprising:
- (A) an aqueous solvent;
- and
- (B) a chelating polymer which comprises polymerized units derived from:
- (1) one or more aminocarboxylic acid compounds or their salts;
- (2) one or more polymerizable monomers comprising a vinyl group, an allyl group, or both, and optionally, an epoxy group;
- and
- (3) one or more ethylenically unsaturated monomers;
- wherein the polymerized units derived from (B)(1) one or more aminocarboxylic acid compounds or their salts comprise those having aminocarboxylic groups of at least one of the following structures:
- wherein R1 and R2 are each independently selected from the group consisting of a hydrogen, a COOX3 and a COOX4;
- wherein X1, X2, X3 and X4 are each independently selected from the group consisting of a hydrogen, a monovalent cation and a polyvalent cation;
- wherein the monovalent cation is selected from the group consisting of Na+, K+ and NH4+;
- wherein the polyvalent cation is selected from the group consisting of Ca2+ and Mg2+;
- wherein R3 is hydrogen or a unit derived from a polymerizable monomer;
- wherein * is the location at which the aminocarboxylic group is bound to the chelating polymer at a unit derived from a polymerizable monomer, or at a unit derived from an ethylenically unsaturated monomer;
- wherein the floor polish composition contains a polyvalent cation concentration of 0.27 to 0.86 equivalents;
- wherein the polymerized units derived from the B(3) one or more ethylenically unsaturated monomers, wherein the one or more ethylenically unsaturated monomers are selected from the group consisting of acrylic acid, methacrylic acid, alpha-ethacrylic acid, beta-dimethylacrylic acid, crotonic acid, acryloxypropionic acid, maleic acid, maleic anhydride, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, methylenemalonic acid and alkali metal salts thereof;
- and
- wherein the floor polish composition is zinc free.
Dependencies are inferred from the claim text.