Acid salts of amine-functionalized SMA imide resins
Compositions comprising acid salts of amine-functionalized styrene-maleic anhydride resins are disclosed. The salts can be dissolved in organic solvents, UV/EB polymerizable monomers and/or oligomers, and/or water and act as a polymeric surfactants to disperse pigments or fillers, emulsifying agents, or hard resin additives in a variety of formulations. The compositions react under UV/EB cure conditions, and provide enhanced properties such as cure speed, hardness and adhesion to polymer compositions.
1. A composition comprising a salt of an unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, and an unsaturated hemi-ester of a dicarboxylic anhydride, and cinnamic acid; and an amine-functionalized styrene-maleic anhydride imide copolymer.
2. The composition of claim 1 wherein the amine-functionalized styrene-maleic anydride imide copolymer is an imide copolymer prepared from styrene-maleic anhydride copolymer (SMA) and a polyamine compound having a primary amine and at least one tertiary amine.
3. The composition of claim 1 wherein the amine-functionalized styrene-maleic anydride imide copolymer is an imide copolymer prepared from styrene-maleic anhydride copolymer (SMA) and a an N,N-dialkylaminoalkyl amine.
4. The composition of claim 1 wherein the amine-functionalized styrene-maleic anydride imide copolymer is an imide copolymer prepared from styrene-maleic anhydride copolymer (SMA) and N,N-dimethylaminopropyl amine.
5. A composition comprising a solution of the salt of claim 1 in water, an organic solvent, UV/EB-curable organic monomer, and/or UV/EB curable organic oligomer.
6. The composition of claim 1 further including a photoinitiator and being curable under UV or EB conditions.
7. The composition of claim 1 in the form of a pigment dispersion, ink, varnish, wood coating, or metal coating.
8. The composition of claim 1 in the form of a pigment dispersion which comprises pigment, water, defoamer, and non-ionic surfactant.
9. A method comprising dispersing, emulsifying, crosslinking, hardening, or conferring adhesion properties to a polymer, oligomer, or monomer by adding a salt of an unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid, and an unsaturated hemi-ester of a dicarboxylic anhydride, and cinnamic acid, and an amine-functionalized styrene-maleic anhydride imide copolymer to the polymer, oligomer, or monomer.
10. A composition prepared by curing the composition of claim 1 .
11. The composition of claim 10 in the form of a coating or paint.
12. A method of curing the composition of claim 1 comprising Michael addition, free radical polymerization, or radiation curing.
13. A copolymer of the salts of claim 1 prepared by reacting the salt with a different ethylenically unsaturated monomer or oligomer.
14. A homopolymer of the sail of claim 1 .
15. A method of preparing a composition according to claim 1 comprising reacting an amine-functionalized styrene-maleic anhydride imide with an unsaturated carboxylic acid to form a salt.
16. A salt prepared according to the method of claim 15 .