Liquid scouring cream containing calcium metasilicate

Claim 2

A stable, pourable, liquid scouring composition providing effective cleaning with reduced abrasion on porous and non-porous hard surfaces comprising about 45-55% by weight of an abrasive system containing at least 20% by weight of calcium metasilicate in the form of particles having a mean diameter in the range of about 5.5 to 16 microns and having a Mohs hardness value of about 5, suspended in an aqueous vehicle containing about 2-15% by weight of at least one surface active agent selected from the group consisting of anionic and nonionic detergents.

Claim 3

A composition in accordance with claim 1, wherein the abrasive system constitutes about 45-47% by weight of calcium metasilicate.

Claim 4

A composition in accordance with claim 1, which also contains about 0.1 to 4% by weight of polyol humectant.

Claim 5

A composition in accordance with claim 1, wherein said surfactant is an anionic surfactant which constitutes about 0.5 to 10% by weight of the total composition and is selected from the group consisting of water-soluble higher alkyl benzene sulfonate detergent salts wherein the alkyl group contains about 8 to 18 carbon atoms, water-soluble C 10 -C 18 alkyl sulfate detergent salts, water-soluble C 10 -C 18 fatty acid monoglyceride sulfate detergent salts, water-soluble sulfated ethylene oxide condensates of higher aliphatic alsohols having about 10 to 18 carbon atoms with about 2 to 15 moles of ethylene oxide and water-soluble alkyl phosphate ester detergent salts having a hydrophobe containing an alkyl chain of about 8 to 20 carbon atoms or an alkyl phenyl group having about 8 to 20 carbon atoms.

Claim 6

A composition in accordance with claim 1 wherein said surfactant is a nonionic surfactant which constitutes about 1 to 5% by weight of the total composition and is selected from the group consisting of fatty acid mono- and dialkylolamides, condensation products of ethylene oxide with alkyl phenols, fatty acids, fatty alcohols or fatty acid C 2 -C 3 alkylolamides; monoethers of polyethylene glycols and long-chain alcohols; condensation products of long-chain alkanol, propylene oxide and ethylene oxide; and higher fatty alkyl diethylamine oxides.

Claim 7

A composition in accordance with claim 1, which also contains up to about 3% by weight of alkali metal carbonate.

Claim 8

A composition in accordance with claim 1, which also contains up to about 3% by weight of alkali metal silicate.

Claim 9

A composition in accordance with claim 1, which also contains up to about 3% by weight of alkali metal sulfates.

Claim 10

A composition in accordance with claim 8, which has a viscosity within the range of 2300 cps and 5000 cps and a pH of about 8 to 12.

Claim 11

A composition in accordance with claim 1, wherein said surfactant is a mixture of an anionic surfactant which is a water-soluble higher alkyl benzene sulfonate wherein the alkyl group contains about 8 to 18 carbon atoms with a non-ionic surfactant which is an ethoxylated C 1-3 alkylolamide of a C 10 14 C 18 fatty acid with an average of about 1-4 moles of ethylene oxide.

Claim 12

A composition in accordance with claim 1, wherein said abrasive is a mixture of said calcium metasilicate and an abrasive selected from the group consisting of finely divided silica, feldspar, pumice, kieselguhr, labradorite, calcium carbonate, emery and carborundum.

Claim 13

A composition in accordance with claim 11 wherein said abrasive is a mixture of calcium metasilicate and calcium carbonate.

Claim 14

A composition in accordance with claim 1 which further contains up to 1% by weight of a suspending agent selected from the group consisting of natural clays, synthetic clays and mixtures thereof.