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US 7,449,437 B2Granted
Graffiti remover, paint stripper, degreaser
AssigneeCognis IP Management GmbH
InventorsStephen F. Gross, Martin J. Barabash, J. Frederick Hessel
Life of this patent
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Abstract
A terpene-free cleaning composition containing: (a) an oil-soluble anionic surfactant; (b) a water-soluble anionic surfactant; (c) a primary solvent consisting of a C1-4 alkyl ester; (d) a short-chain cosurfactant; and (e) water.
Claims34
A terpene-free cleaning composition comprising:
- (a) a C1-4 alkyl ester of a C6-22 saturated or unsaturated fatty acid;
- and
- (b) a cyclic ketone, wherein (a) and (b) are employed at a ratio by weight of from about 10:1 to about 1:10 wherein the composition is free of nonionic surfactants.
A terpene-free cleaning composition comprising:
- (a) from about 2 to about 12% by weight of an oil-soluble anionic surfactant;
- (b) from about 0.2 to about 6% by weight of a water-soluble anionic surfactant;
- (c) from about 3 to about 96% by weight of a primary solvent comprising a C1-4 alkyl ester of a C6-22 saturated or unsaturated fatty acid;
- (d) from about 2 to about 14% by weight of a short-chain cosurfactant;
- and
- (e) remainder, water, auxiliaries, and optionally a cyclic ketone, all weights being based on the total weight of the composition.
3 more elements
A terpene-free cleaning composition comprising:
- (a) from about 6 to about 8% by weight of an isopropylamine salt of dodecylbenzenesulfonic acid;
- (b) from about 1 to about 2% by weight of a C12-14 fatty alcohol sulfate;
- (c) from about 40 to about 50% by weight of a primary solvent comprising a C8-C10 methyl ester of the formula R1COOCH3 wherein R1 is an alkyl group containing from 7-9 carbon atoms;
- (d) from about 8 to about 10% by weight of a propylene glycol n-butyl ether;
- and
- (e) the remainder:
- water, auxiliaries and optionally a cyclic ketone, all weights being based on the total weight of the composition, and wherein the primary solvent and water are present in the composition in a ratio by weight of about 1.5:1.
4 more elements
Dependencies are inferred from the claim text.