| abstract |
HYDROCARBON RESINS ARE PRODUCED BY POLYMERIZING A REACTION MIXTURE CONTAINING ALPHA-METHYL STYRENE, INDENE AND VINYL TOLUENE AS THE PRINCIPAL POLYMERIZABLE CONSTITUENTS IN THE PRESENCE OF A FRIEDEL-CRAFTS TYPE CATALYST SUCH AS BORON TRIFLUORIDE. THE ALPHA-METHYL STYRENE/INDENE/VINYL TOLUEN TERPOLYMER OR RESIN MAY ADVANTAGEOUSLY BE USED WITH SHORT AND MEDIUM OIL ALKYD RESINS AND OTHER COATING COMPOSITIONS IN BOTH AIR-DRY AND BAKING TYPE FINISHES, ESPECIALLY WHERE HEAT AND UTRAVIOLET LIGHT STABILITY, DRYING TIME, GLOSS AND GLOSS RETENTION, WATER AND CAUSTIC RESISTANCE, AND LEVELING PROPERTIES ARE IMPORTANT. THE RESIN MAY ALSO BE USED ADVANTAGEOUSLY IN HOT MELT ADHESIVES AND COATINGS AND AS A MODIFIER IN WAX SYSTEMS, ESPECIALLY WHERE LOW ODOR, COLOR STABILITY, AND VISCOSITY STABILITY ARE IMPORTANT. |