17-12-2020 дата публикации
Номер: US20200392425A1
A drag reducing composition comprises a sealed temporary container; and a drag reducing agent and up to 20 weight percent of a dispersing fluid disposed in the sealed temporary container. The drag reducing agent comprises polyolefin particles having a particle size of about 10 to about 2,000 microns; and the dispersing fluid comprising water, an alcohol, a hydrocarbon, or a combination comprising at least one of the foregoing. 1. A drag reducing composition comprising:a sealed temporary container; anda drag reducing agent and up to 20 weight percent of a dispersing fluid disposed in the sealed temporary container;wherein the drag reducing agent comprises polyolefin particles having a particle size of about 10 to about 2,000 microns;the dispersing fluid comprising water, an alcohol, a hydrocarbon, or a combination comprising at least one of the foregoing;the temporary container comprises a container material, which includes a polyethylene, a polypropylene, an ethylene propylene copolymer, a polystyrene, a polylactic acid, a polyamide, a polyester, a polystyrene, an ethylene vinyl acetate copolymer, an ethylene vinyl alcohol copolymer, a polyvinylpyrrolidone, an ethylene vinylpyrrolidone copolymer, a vinylpyrrolidone vinyl acetate copolymer, a polyvinyl acetate, a polyvinyl alcohol, a polyethylene oxide, a polyethylene glycol, polyvinylidene chloride, a polysaccharide or its derivative, or a combination comprising at least one of the foregoing; andthe weight percent is based on the total weight of the drag reducing composition.2. The drag reducing composition of claim 1 , wherein the drag reducing agent comprises a plurality of first polyolefin particles; and a plurality of second polyolefin particles different from the first polyolefin particles.3. The drag reducing composition of claim 2 , wherein the first polyolefin particles have a particle size of about 10 to about 200 microns and the second polyolefin particles have a particle size of about 200 to about 2 claim ...
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