| abstract |
AQUEOUS COATING COMPOSITIONS ARE PREPARED FROM WATER SOLUBLE CYCLIC SULFONIUM ZWITTERIONS OF FORMULA I. (-CH2-A-(B)C-CH2-)>S(+)-(((-)O-),R''A-PHENYLENE)-(Z- (HO-,R''A-PHENYLENE))X-(Z-(((-CH2-A-(B)C-CH2-)>S(+)-), ((-)O-),R''A-PHENYLENE))Y-R WHERE Z IS A BRIDGING ETHER, ESTER OR ALKYLENE GROUP AND $(X+Y)=0-20 AND AQUEOUS INORGANIC AND ORGANIC COLLOIDIAL SOLS STABLE AT ALKALINE PH. THESE COMPOSITIONS CURE THERMALLY TO FORM WATER-INSOLUBLE COATINGS WITH THE COLLOIDAL PARTICLES DISPERSED THROUGHOUT A BINDER MATRIX OF POLYMERIZED ZWITTERIONIC MONOMER. COATINGS OF UNUSUAL HARDNESS, SCRATCH RESISTANCE, FLEXIBLE, RESILIENCE AND LUBRICITY CAN BE OBTAINED USING SOLS OF SUCH MATERIALS AS SILICA, POLYTETRAFLUOROETHYLENE, POLYETHYLENE, STYRENEBUTADIENE LATEX, AND WATER-INSOLUBLE OILS. |