Polyamine additive
AssigneeLubrizol Advanced Materials, Inc.
InventorsShui-Jen R. Hsu, Dominic Cremona, Darlene D. Rota, Adlai J. Perry, Keith Rawlins, Stephan A. Horvath
Life of this patent
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Abstract
Polyamine additives are disclosed that are useful to provide early water resistant to drying anionically colloidally stabilized polymer dispersions in aqueous media. The polyamines are polymerization products from ethylenically unsaturated monomers with pendant tertiary amine groups with ethylenically unsaturated monomers with pendant poly(alkylene oxide) chains of 88 to 1200 g/mole molecular weight.
Claims8
A water dilutable polyamine additive comprising the polymerization product of free radically polymerizable monomers into repeating units of a polyamine wherein:
- a) from 30-90 wt. % of repeating units are from a free radically polymerizable tertiary amine monomer(s) comprising Formula A1 or A2
- wherein Ra is O or NRk, Rb is a C1 to C6 alkylene, Re is a C1-C4 alkyl, Rf is a C1-C4 alkyl, Rg is H or methyl or ethyl and Rh is H or methyl or ethyl, Rk is H, a C1-C4 alkyl, or a C1-C4 acyl group, A′ is poly(oxy-C2H4 and/or C3H6 alkylene) homopolymer or copolymer having a number average molecular weight of 88-348 g/mole, m is 2 or 3, Ri is selected from a group consisting of hydrogen, phenyl group, benzyl group, and a C1-C12 alkyl group if it is not linked directly to Rj to form an alkylene group, Rj is selected from a group consisting of hydrogen, a C1-C4 alkyl group, if it is not linked directly to Ri, and optionally Ri and Rj together are covalently bonded to each other to form a C4 or C5 alkylene group forming a 5 or 6 membered ring with the C atom to which they are attached, with
- b) from 10-60 wt. % of repeating units are from a poly(alkylene oxide) monomer B of the formula
- wherein Rp is a poly(alkylene oxide) having a number average molecular weight from about 88 to about 1200, wherein said poly(alkylene oxide) has 2 or 3 or 4 carbons per alkylene group, Rq is H or C1-C8 alkylene group;
- and Rr is H or methyl or ethyl;
- c) from about 5 to about 60 wt. % of repeating units are from other free radically polymerizable monomers other than monomers A1, A2 and B, and the polyamine additive has a number average molecular weight from 10,000 and 500,000 Daltons based on GPC molecular weight determinations using polystyrene standards.
Dependencies are inferred from the claim text.