Latices comprising polymer monomer and autoxidizable material
Abstract
Abstract A COMPOSITION WHICH COMPRISES A DISPERSION OF FILMFORMING POLYMER IN AN AQUEOUS LIQUID, AN AUTOXIDIZABLE MATERIAL WHICH IN THE PRESENCE OF OXYGEN PROVIDES RADICALS TO INITIATE ADDITION POLYMERIZATION, AND AN ETHYLENICALLY UNSATURATED MONOMER WHICH IS READILY HOMOPOLYMERISABLE BY SUCH RADICALS. WHEN THIS COMPOSITION IS EXPOSED TO AIR, PARTICULARLY AS A THIN FILM OF COATING COMPOSITION SUCH AS PAINT, AUTOXIDATION OF THE AUTOXIDIZABLE MATERIAL TAKES PLACE TO PROVIDE RADICALS CAPABLE OF POLYMERIZING AN ETHYLENICALLY UNSATURATED MONOMER AND A POLYMERIZATION REACTION OCCURS, THE AUTOXIDIZABLE MATERIAL ALSO BEING ITSELF MODIFIED BY THE AUTOXIDATION AND/ OR SUBSEQUENT POLYMERIZATION REACTION. THIS MODIFICATION OF THE AUTOXIDIZABLE MATERIAL AND/OR THE POLYMERIZATION REACTION CAN BE MADE USE OF IN HARDENING UP A POLYMER FILM FORMED FROM PARTICLES INITIALLY SOFT ENOUGH TO INTEGRATE AT THE FILM-FORMING TEMPERATURE.
Inventors
- 👤 Michael Raymond Clarke
Bibliographic Details
Claims Analysis
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