Degreasing composition comprising an anionic surfactant mixture
OwnerWojciech Babinskiinventor
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Abstract
The invention pertains to degreasing compositions, process for producing and uses thereof. The composition comprises: from about 4% to about 16% by weight of the composition of a first anionic surfactant having HLB value less than 12; from about 1% to about 5% by weight of the composition of a second anionic surfactant having HLB value more than 12; from about 1% to about 4% by weight of the composition of a weak acid; from about 2% to about 6% by weight of the composition of urea; from about 1% to about 5% by weight of the composition of trisodium phosphate; about 1% to about 4% of the composition, of an inorganic base; and from about 60% by weight to about 90% by weight of the composition of water.
Claims28
A degreasing composition comprising:
- A) from about 4% to about 16% by weight of the composition of a first anionic surfactant having an HLB value less than 12;
- B) from about 1% to about 5% by weight of the composition of a second anionic surfactant having an HLB value more than 12;
- C) from about 1% to about 4% by weight of the composition of a weak acid;
- D) from about 2% to about 6% by weight of the composition of urea;
- E) from about 1% to about 5% by weight of the composition of trisodium phosphate;
- F) from about 1% to about 4% by weight of the composition of an inorganic base;
- and
- G) from about 60% to about 90% by weight of the composition of water.
A method of preparing a degreasing composition, the method comprising:
- adding, into a chemical reactor, about 600 liters of water having a temperature of about 25-35° C.;
- mixing, into the chemical reactor, about 30 kg of boric acid for about 15 minutes to about 30 minutes, until the boric acid dissolves;
- mixing, into the chemical reactor, from about 125 liters to about 130 liters of alkylbenzene sulfonic acid for about 30 minutes;
- mixing, into the chemical reactor, about 30 liters of sodium laureth sulfate for about 30 minutes;
- letting the reaction mixture stand still for about 60 minutes;
- mixing, into the chemical reactor, about 500 liters of water having a temperature of about 30° C., about 30 kg of trisodium phosphate and about 50 kg of urea;
- adding, into the chemical reactor, from about 250 liters to about 300 liters of an about 10% solution of sodium hydroxide;
- allowing the reaction mixture to stand still for about 24 hours to allow air to escape contents of the chemical reactor.
Dependencies are inferred from the claim text.