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Solvent dewaxing waxy hydrocarbon oil distillates using a combination poly di-alkyl fumarate-vinyl acetate copolymer having pendent carbon side chain length of predominantly C.sub.22 and polyalkyl(meth-)acrylate polymer dewaxing aid

US Patent 4406771 · Granted Sep 27, 1983

Estimated economic value: $22,144,000

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