Process of curing polymerizable resins having terminal vinyl ester groups using high energy electrons

Abstract

Abstract A PROCESS OF COATING A POROUS OR NONPOROUS SUBSTRATE WITH A LIQUID POLYMERIZABLE FILM AND SUBJECTING THE COATED SUBSTRATE TO IONIZING RADIATION SUFFICIENT TO IMPART TO THE COATING COMPOSITION A DOSE OF FROM 1 TO 10 MEGARADS IN ONE SECOND OR LESS. THE COATING COMPOSITIONS, CAPABLE OF SUBSTANTIALLY COMPLETE POLYMERIZATION IN LESS THAN ONE SECOND, CONTAIN UNDILUTED VINYL ESTER RESINS HAVING TERMINAL VINYL ESTER GROUPS, OR THE ABOVE DISSOLVED IN VINYL MONOMERS. THE VINYL ESTER RESINS ARE MADE BY REACTING: (1) A POLYFUNCTIONAL MATERIAL SELECTED FROM THE GROUP CONSISTING OF (A) DICARBOXYLIC ACIDS HAVING FROM 4 TO 15 CARBON ATOMS, (B) POLYEPOXIDES HAVING TERMINAL, REACTIVE GLYCIDYL GROUPS, (C) POLYFUNCTIONAL ISOCYANATES HAVING TERMINAL, REACTIVE ISOCYANATE GROUPS, OR (D) DICARBOXYLIC ACID ESTERS OF POLYEPOXIDES, POLYAMINES, POLYISOCYANATES, WITH (2) 2-HYDROXYALKYL ACRYLATES OR METHACRYLATES. PARTICULARLY USEFUL ARE COATING COMPOSITIONS CONTAINING RESINS HAVING TERMINAL ACRYLATE GROUPS AND AN ACRYLATE MONOMER, THE POLYFUNCTIONAL ACRYLATE HAVING MORE THAN ONE 2-OXYALKYLACRYLATE END GROUP PER MOLECULE WITH THE END GROUPS BEING JOINED BY A HYDROPHOBIC MOLECULE SUCH AS A DICARBOXYLIC ACID, POLYFUNCTIONAL ISOYANATE OR POLYEPOXIDE.

Inventors

• 👤 Lewis S Miller

Bibliographic Details