Synthesis and coating application of chlorinated hydroxyrubber
AssigneeThe University of Southern Mississippi
InventorsShelby F. Thames, Zhiqiang A. He
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Abstract
The invention relates to chlorinated hydroxyrubber, a method for making chlorinated hydroxyrubber via chlorinating partially hydroxylated rubber with chlorine gas, and environmentally friendly low volatile organic content coatings comprising chlorinated hydroxyrubber.
Claims23
A composition comprising chlorinated hydroxyrubber wherein the chlorine and hydroxyl groups are attached to isoprene moieties.
A method of making chlorinated hydroxyrubber comprising reacting hydroxyrubber with chlorine gas.
A method of making chlorinated hydroxyrubber comprising the steps of:
- (i) dissolving hydroxyrubber in chloroform;
- (ii) purging the reaction system with nitrogen gas;
- (iii) introducing chlorine gas into the reaction system;
- (iv) allowing the solution to reflux with constant agitation;
- and
- (v) precipitating chlorinated hydroxyrubber with methanol.
A rubber coating composition comprising chlorinated hydroxyrubber Wherein the chlorine and hydroxyl groups are attached to isoprene moieties.
A method of making a chlorinated hydroxyrubber coating composition comprising the steps of:
- (i) dissolving chlorinated hydroxyrubber having chlorine and hydroxyl groups attached to isoprene moieties, catalyst, and additives in an organic solvent;
- (ii) adding isocyanate to the chlorinated hydroxyrubber solution of step (i);
- and
- (iii) stirring the mixture of isocyanate and chlorinated hydroxyrubber solution.
Dependencies are inferred from the claim text.