Back to results
US 5,629,396 AGranted
Latex containing oxazoline for industrial coatings
AssigneeThe Dow Chemical Company
InventorsDaniel B. Rice, James G. Galloway, William H. Keskey
Life of this patent
Estimating the term…
Abstract
The incorporation of oxazoline monomers into conventional latexes imparts resistance to flash rust and salt fog of industrial coatings which contain the oxazoline latex.
Claims7
A process for coating cold rolled steel by applying thereto a composition comprising an aqueous dispersion of latex copolymers prepared from ethylenically unsaturated monomers, wherein from 0.25 to 5.0 percent by weight of such monomers are of the formula:
- ##STR7## wherein R.sup.1 is H.sub.2 C.dbd.C(R.sup.3)--, wherein R.sup.3 is hydrogen or an alkyl group;
- each R.sup.2 is independently hydrogen, halogen, alkyl, or alkylene group of two to four carbons.
A process for coating cold rolled steel by applying thereto a composition comprising a pigment grind, the pigment grind comprising:
- a pigment carrier, a thickener, a defoamer, a wetting agent, a dispersant, a bacteriostat, at least one pigment, a pigment stabilizer and a latex which comprises:
- (a) a first charge of monomer comprising an effective amount of at least one ethylenically unsaturated monomer and
- (b) a second charge of monomer comprising (i) an effective amount of an oxazoline monomer represented by the following formula:
- ##STR8## wherein R.sup.1 is a polymerizable organic group;
- each R.sup.2 is independently hydrogen, halogen, alkyl, or alkylene group of two to four carbons, and n=1.
2 more elements
Dependencies are inferred from the claim text.