The present invention provides a coating additive (co)polymer comprising, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 20% to 60%, at least one acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer, and from 40% to 80% at least one
The present invention provides a coating additive (co)polymer comprising, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 20% to 60%, at least one acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer, and from 40% to 80% at least one water soluble ethylenically unsaturated monomer. It further provides a coating formulation comprising higher than 0.04% by dry weight based on total dry weight of the coating formulation, the acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer.
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1. A coating additive (co)polymer comprising, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 20% to 60%, at least one acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer, and from 40% to 80% at least one water soluble ethylenically
1. A coating additive (co)polymer comprising, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 20% to 60%, at least one acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer, and from 40% to 80% at least one water soluble ethylenically unsaturated monomer. 2. The coating additive (co)polymer according to claim 1 wherein it comprises, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 30% to 45%, at least one acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer. 3. The coating additive (co)polymer according to claim 1 wherein it comprises, as (co)polymerized units, by dry weight based on total dry weight of the (co)polymer, from 55% to 70% at least one water soluble ethylenically unsaturated monomer. 4. The coating additive (co)polymer according to claim 1 wherein the acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomers have the following structure: wherein R1 is selected from H, alkyl having 1 to 10 carbon atoms, and phenyl;wherein A has the following structure: wherein R2 is selected from H, alkyl having 1 to 10 carbon atoms, phenyl, halo, CO2CH3, and CN; R3 is selected from H, alkyl having 1 to 10 carbon atoms, phenyl, and halo; R4 is selected from alkylene having 1 to 10 carbon atoms and phenylene; and R5 is selected from alkylene having 1 to 10 carbon atoms and phenylene;wherein a, m, n, and q are independently selected from 0 and 1; andwherein each of X and Y is selected from —NH— and —O—; andwherein B is selected from A, alkyl having 1 to 10 carbon atoms, phenyl, and heterocyclic groups. 5. The coating additive (co)polymer according to claim 4 wherein the acetoacetoxy and acetoacetamide functional ethylenically unsaturated monomers are selected from acetoacetoxyethyl (meth)acrylate, acetoacetoxypropyl (meth)acrylate, acetoacetoxybutyl (meth)acrylate, allyl acetoacetate, 2,3-di(acetoacetoxy) propyl (meth)acrylate, and any combinations thereof. 6. The coating additive (co)polymer according to claim 1 wherein the water soluble ethylenically unsaturated monomer has the following structure: D-(CH2CH2O)h—(CH2CH(CH3)O)k-Ewherein h is an integer of from 0 to 150, preferably from 23 to 100, and more preferably from 25 to 50; and k is an integer of from 0 to 30, preferably from 0 to 20, and more preferably from 0 to 10;wherein D is an ethylenically unsaturated group, can be selected from methyacrylate, methacrylamide, acrylate, acrylamide, vinyl ether, and allyl ether; andwherein E is a capping group, and is selected from H, alkyl having 1 to 4 carbon atoms, and anionic salt groups including lithium, sodium, potassium and ammonium salt of phosphonate, phosphate, sulfate and sulfonate. 7. The coating additive (co)polymer according to claim 6 wherein the water soluble ethylenically unsaturated monomers are selected from methoxypolyethylene glycol (meth)acrylate, polyethylene glycol (meth)acrylate, hydroxypropyl (meth)acrylate, vinylsulfonic acid sodium, sodium p-styrenesulfonate, acrylamide, and N-hydroxylmethyl (meth)acrylate. 8. A coating formulation comprising higher than 0.04% by dry weight based on total dry weight of the coating formulation, the acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer. 9. The coating formulation according to claim 8 wherein it comprises from 0.1% to 2% by dry weight based on total dry weight of the coating formulation, the acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer. 10. The coating formulation according to claim 8 wherein it comprises from 0.2% to 1.5% by dry weight based on total dry weight of the coating formulation, the acetoacetoxy or acetoacetamide functional ethylenically unsaturated monomer.
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