High-temperature polymerization of unsaturated hydrocarbon mixtures

Claim 1

A PROCESS FOR MAKING A RESIN FROM A NORMALLY LIQUID MIXTURE OF UNSATURATED HYDROCARBONS OBTAINED IN THE PYROLYSIS OF A NORMALLY GASEOUS HYDROCARBON HAVING AT LEAST TWO CARBON ATOMS IN THE MOLECULE AT A TEMPERATURE BETWEEN ABOUT 1300 AND 1550* F. AND A CONTACT TIME BETWEEN ABOUT 0.2 AND 5 SECONDS, WHICH COMPRISES CONTACTING SAID NORMALLY LIQUID MIXTURE OF UNSATURATED HYDROCARBONS WITH ABOVE ABOUT 0.5 PERCENT BY WEIGHT OF BORON TRIFLUORIDE IN THE SUBSTANTIAL ABSENCE OF WATER AND ORGANIC OXYGENATED COMPOUNDS AT A TEMPERATURE ABOVE ABOUT 500* F., WHEREBY A PORTION OF SAID UNSATURATED HYDROCARBONS IS CONVERTED INTO A THERMOPLASTIC RESIN, REMOVING SAID BORON TRIFLUORIDE FROM THE REACTION PRODUCT AT A TEMPERATURE ABOVE ABOUT 500* F., AND REMOVING LOW-BOILING COMPONENTS FROM THE REACTION PRODUCT, WHEREBY A THERMOPLASTIC RESIN IS OBTAINED HAVING AN IODINE NUMBER BELOW ABOUT 80, LIGHT COLOR, AND SUPERIOR SUSCEPTIBILITY TO DECOLORIZATION.