Back to results
US 4,302,348 AGranted
Hard surface cleaning compositions
AssigneeThe Drackett Company
InventorLuz P. Requejo
Life of this patent
Estimating the term…
Abstract
A composition for cleaning a wide variety of hard surfaces in a no rinse mode, comprised of a mixture of organic solvents at least one having a low boiling point and at least one having a relatively higher boiling point, an alkali-metal polyphosphate, fugitive alkaline material, a first surfactant which is a nonionic or anionic surfactant, a second surfactant which is a fluorinated hydrocarbon anionic or nonionic surfactant, and water.
Claims8
A cleaning composition for hard surfaces consisting essentially by weight of:
- (a) from about 1.85% to about 10.00% of at least one organic solvent which is a lower aliphatic monohydric alcohol having from about 2 to about 4 carbon atoms and having a boiling point within the range of from about 75.degree. C. to about 100.degree. C.;
- (b) from about 1.15% to about 10.00% of at least one organic solvent having a boiling point of between about 120.degree. C. to about 250.degree. C. and selected from the group consisting of alkylene and polyalkylene glycols having from about 2 to 6 carbon atoms, and the lower alkyl ethers, having about 1 to 4 carbon atoms, of alkylene or polyalkylene glycols containing a total of from about 3 to 8 carbon atoms;
- (c) from about 0.1% to about 2.5% of a first surfactant which is an anionic or nonionic surfactant selected from the group consisting of linear primary alcohols having from about 9 to about 11 carbon atoms reacted with an average of 2.5 moles of ethylene oxide, alkyl aryl sulfonates, polyethylene oxide ethers of fatty alcohols, sodium lauryl sulfate, octyl phenoxy polyethoxy ethanol, sodium lauryl ether sulfate, and sodium dodecyl benzene sulfonate;
- (d) from about 0.011% to about 5.000% of a second surfactant which is an anionic or nonionic fluorinated hydrocarbon surfactant selected from the group consisting of:
- (i) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion has a branched chain structure and having aliphatic per-fluorocarbon groups at one end thereof;
- (ii) nonionic fluorinated hydrocarbon surfactants having a fluorinated hydrocarbon portion exhibiting a branched structure and having the formula:
- R.sub.f (OCH.sub.2 CH.sub.2).sub.n OR.sub.f
- wherein R.sub.f is C.sub.8 F.sub.15, C.sub.10 F.sub.19 or C.sub.12 F.sub.23 and n is an integer from 10 to 30;
- (iii) nonionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a branched structure and having the formula:
- R.sub.f (OCH.sub.2 CH.sub.2).sub.m OR
- wherein R.sub.f is as in (ii), R is a lower alkyl and m is an integer from 2 to 10;
- and
- (iv) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a straight chain structure and having aliphatic per-fluorocarbon groups at one end of the chain thereof;
- (e) from about 0.02% to about 2.0% of an alkali-metal polyphosphate selected from the group consisting of the sodium or potassium salts of tripolyphosphate, hexametaphosphate, and tetra-sodium or potassium pyrophosphate;
- (f) from about 0.15% to about 3.00% of a fugitive alkaline material which can be ammonia, or morpholine;
- and
- (g) the balance of said composition being water.
14 more elements
Dependencies are inferred from the claim text.