Abstract:
BLENDS OF PETROLEUM WAX WITH (1) FROM 1 TO 20 WT. PERCENT OF POLYBUTENE-1 HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 50,000 TO 1,000,000 AND AN ISOTACTIC CONTENT OF ABOUT 50 TO 98 WT. PERCENT, AND (2) FROM 1 TO 20 WT. PERCENT OF AN ETHYLENE/VINYL ACETATE COPOLYMER CONTAINING FROM ABOUT 10 TO 40 WT. PERCENT VINYL ACETATE HAVE IMPROVED TENSILE STRENGTH, HARDNESS, SOFTENING POINTS AND GLOSS, WITHOUT MARKEDLY INCREASED VISCOSITY OR SHRINKAGE, AND HAVE CLOUD POINTS NOT APPRECIABLY HIGHER THAN THAT OF THE PETROLEIUM WAX CONSTITUENT. THESE BLENDS ARE PARTICULARLY USEFUL AS OCATINGS FOR PAPER, PAPERBOARD AND THE LIKE.