Abstract:
AN AMORPHOUS CRACKED ETHYLENE-PROPYLENE-TERPOLYMER POUR DEPRESSANT COMPOSITION CONSISTING OF 10 TO 90 PERCENT ETHYLENE, 5 TO 70 PERCENT PROPYLENE AND 0.1 TO 20 PERCENT OF A NON-CONJUGATED DIENE HAVING FROM 5 TO 30 CARBON ATOMS, AND A METHOD OF PREPARING SAME.
Abstract:
An improved process for the transportation of waxy crude oils through pipelines, in particular North African crudes, which comprises introducing into the pipeline a low-pour point, lowsulfur crude oil blend comprising about 70 to about 90 percent by volume of a high-pour point, low-sulfur, waxy crude, and about 30 to about 10 percent by volume of a low-wax, low-pour crude, together with an effective pour depressant amount of an oilsoluble ethylene-vinyl fatty acid ester copolymer. The pipeline flow characteristics of the blend of the crudes are distinctly superior to the high-pour point, low-sulfur, waxy crude forming the major portion of the blend or the high-pour point, waxy crude with the same pour point depressant. In another aspect, this invention relates to the composition comprising the blended crudes together with the oil-soluble copolymer and to a process for preparing such compositions.
Abstract:
POUR DEPRESSANT COMPOSITION COMPRISING A CRACKED AND OXIDIZED ETHYLENE-PROPYLENE-DICYCLOPENTADIENE - TERPOLYMER AND MINERAL OIL COMPOSITIONS CONTAINING SAME.