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US 6,228,830 B1Granted
Heavy oil remover
AssigneeDotolo Research Corporation
InventorJack T. Vlasblom
Life of this patent
Estimating the term…
Abstract
A heavy oil remover comprises d-limonene, dipropylene glycol mono n-butyl ether, a salt of an alkyl aromatic sulfonic acid, a carboxylated anionic detergent, an ethoxylated tallow amine, a branched alcohol ethoxylate, an ethoxylated alkyl mercaptan, and water.
Claims25
A heavy oil remover, comprising:
- from about 1 to about 99 weight percent d-limonene;
- from about 1 to about 99 weight percent dipropylene glycol mono n-butyl ether;
- from about 1 to about 99 weight percent salt of an alkyl aromatic sulfonic acid;
- from about 0.5 to about 99 weight percent carboxylated anionic detergent;
- from about 0.1 to about 55 weight percent ethoxylated tallow amine;
- from about 0.1 to about 75 weight percent branched alcohol ethoxylate;
- from about 0.1 to about 75 weight percent ethoxylated alkyl mercaptan;
- and up to about 95 weight percent water.
5 more elements
A heavy oil remover, comprising:
- from about 22 to about 46 weight percent d-limonene;
- from about 7 to about 15 weight percent dipropylene glycol mono n-butyl ether;
- from about 1 to about 5 weight percent salt of an alkyl aromatic sulfonic acid;
- from about 4 to about 9 weight percent carboxylated anionic detergent;
- from about 1 to about 7 weight percent ethoxylated tallow amine;
- from about 3 to about 8 weight percent branched alcohol ethoxylate;
- from about 3 to about 8 weight percent ethoxylated alkyl mercaptan;
- and
- up to about 95 weight percent water.
6 more elements
A heavy oil remover, comprising:
- about 30 weight percent d-limonene;
- about 10 weight percent dipropylene glycol mono n-butyl ether;
- about 3 weight percent salt of an alkyl aromatic sulfonic acid;
- about 6 weight carboxylated anionic detergent;
- about 6 weight percent ethoxylated tallow amine;
- about 5 weight percent branched alcohol ethoxylate;
- about 5 weight percent ethoxylated alkyl mercaptan;
- and
- about 35 weight percent water.
6 more elements
Dependencies are inferred from the claim text.