US4900467A — Viscoelastic cleaning compositions with long rela…

Claim 1

Independent Claim 103 words

A thickened cleaning composition having a viscoelastic rheology comprising, in aqueous solution (a) an active cleaning compound, present in a cleaning effective amount; and (b) a viscoelastic thickening system consisting essentially of a betaine or sulfobetaine having a C 14-18 alkyl group, or a C 10-18 alkylamino or alkylamido group; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols, and mixtures thereof; and wherein the betaine and counterion are present in an amount to thicken and result in a viscoelastic rheology.

Claim 2

Dependent Claim 103 words

A thickened cleaning composition having a viscoelastic rheology comprising, in aqueous solution (a) an active cleaning compound, present in a cleaning effective amount; and (b) a viscoelastic thickening system consisting essentially of a betaine or sulfobetaine having a C 14-18 alkyl group, or a C 10-18 alkylamino or alkylamido group; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols, and mixtures thereof; and wherein the betaine and counterion are present in an amount to thicken and result in a viscoelastic rheology.

Claim 3

Dependent Claim 30 words

The composition of claim 1 wherein the active cleaning compound is selected from the group consisting of acids, bases, oxidants, reductants, solvents, enzymes, detergents, and thioorganic compounds, and mixtures thereof.

Claim 4

Dependent Claim 19 words

The composition of claim 1 wherein the counterion is sodium xylene sulfonate, and the betaine is cetyl dimethyl betaine.

Claim 5

Dependent Claim 25 words

The composition of claim 1 wherein the composition has a relative elasticity between about 10-500 sec/Pa, and a relaxation time greater than about 5 seconds.

Claim 6

Dependent Claim 52 words

The composition of claim 4 wherein the active cleaning compound is present in an amount of from about 0.05% to 50% by weight; the betaine is present from about 0.1% to 10.0% by weight; and the counterion is present in a mole ratio to the betaine of between about 1:10 and 3:1.

Claim 7

Dependent Claim 118 words

A thickened viscoelastic drain opening composition comprising, in aqueous solution (a) a drain opening active, selected from the group consisting of acids, bases, oxidants, reductants, solvents, enzymes, detergents, thioorganic compounds, and mixtures thereof; and (b) a viscoelastic thickening system consisting essentially of a betaine or sulfobetaine having a C 14-18 alkyl group, or a C 10-18 alkylamino or alkylamido group; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols and mixtures thereof; and wherein the betaine and counterion are present in an amount to thicken and result in a composition relative elasticity between about 10-500 sec/Pa.

Claim 8

Dependent Claim 118 words

A thickened viscoelastic drain opening composition comprising, in aqueous solution (a) a drain opening active, selected from the group consisting of acids, bases, oxidants, reductants, solvents, enzymes, detergents, thioorganic compounds, and mixtures thereof; and (b) a viscoelastic thickening system consisting essentially of a betaine or sulfobetaine having a C 14-18 alkyl group, or a C 10-18 alkylamino or alkylamido group; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols and mixtures thereof; and wherein the betaine and counterion are present in an amount to thicken and result in a composition relative elasticity between about 10-500 sec/Pa.

Claim 9

Dependent Claim 13 words

The composition of claim 6 wherein the organic counterion is an aryl sulfonate.

Claim 10

Dependent Claim 38 words

The composition of claim 6 wherein the composition has a percentage diluted of less than about 25%, as determined by pouring a first quantity of composition into a second quantity of standing water and measuring undiluted product delivered.

Claim 11

Dependent Claim 107 words

A thickened viscoelastic drain opening composition comprising, in aqueous solution (a) an alkali metal hydroxide; (b) an alkali metal hypochlorite; and (c) a viscoelastic thickening system, consisting essentially of a C 14-18 alkyl betaine or sulfobetaine; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols and mixtures thereof; and wherein (c) is present in an amount sufficient to thicken and result in a relative elasticity between about 10-500 sec/Pa, a density greater than that of water, and a viscosity of at least about 20 cP.

Claim 12

Dependent Claim 107 words

A thickened viscoelastic drain opening composition comprising, in aqueous solution (a) an alkali metal hydroxide; (b) an alkali metal hypochlorite; and (c) a viscoelastic thickening system, consisting essentially of a C 14-18 alkyl betaine or sulfobetaine; and an anionic organic counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, sulfated C 2-10 alkyl alcohols, sulfated aryl alcohols and mixtures thereof; and wherein (c) is present in an amount sufficient to thicken and result in a relative elasticity between about 10-500 sec/Pa, a density greater than that of water, and a viscosity of at least about 20 cP.

Claim 13

Dependent Claim 33 words

The drain opening composition of claim 9 and further including 0 to about 5 weight percent of an alkali metal silicate, and 0 to about 5 weight percent of an alkali metal carbonate.

Claim 14

Dependent Claim 38 words

The composition of claim 9 wherein the composition has a percentage diluted of less than about 25%, as determined by pouring a first quantity of composition into a second quantity of standing water and measuring undiluted product delivered.

Claim 15

Dependent Claim 60 words

The composition of claim 9 wherein component (a) is present in an amount of from about 0.5 to 20 weight percent; component (b) is present in an amount of from about 1 to 15 weight percent; the betaine is present from about 0.1 to 10 weight percent; and the counterion is present from about 0.01 to about 10 weight percent.

Claim 16

Dependent Claim 104 words

A thickened viscoelastic hypochlorite composition comprising, in aqueous solution (a) a hypochlorite-producing source, present in an amount sufficient to produce a bleaching-effective amount of hypochlorite; and (b) a viscoelastic thickening system, consisting essentially of a C 14-18 alkyl betaine or sulfobetaine; and an anionic organic bleach-resistant counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, C 2-10 sulfated alkyl alcohols, aryl alcohols, and mixtures thereof; and wherein (c) is present in an amount to thicken and result in a relative elasticity between about 10-500 sec/Pa, and a viscosity of at least about 20 cP.

Claim 17

Dependent Claim 104 words

A thickened viscoelastic hypochlorite composition comprising, in aqueous solution (a) a hypochlorite-producing source, present in an amount sufficient to produce a bleaching-effective amount of hypochlorite; and (b) a viscoelastic thickening system, consisting essentially of a C 14-18 alkyl betaine or sulfobetaine; and an anionic organic bleach-resistant counterion, selected from the group consisting of C 2-6 alkyl carboxylates, aryl carboxylates, C 2-10 alkyl sulphonates, aryl sulphonates, C 2-10 sulfated alkyl alcohols, aryl alcohols, and mixtures thereof; and wherein (c) is present in an amount to thicken and result in a relative elasticity between about 10-500 sec/Pa, and a viscosity of at least about 20 cP.

Claim 18

Dependent Claim 54 words

The composition of claim 13 wherein component (a) is present from about 0.1 to 15 weight percent; component (b) is present from about 0.1 to 10 weight percent; the betaine is present from about 0.01 to 10 weight percent; and a mole ratio of betaine to the counterion is between about 10:1 and 1:3.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-02-12	1993-08-14	1994-02-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-02-12	1997-08-14	1998-02-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-02-12	2001-08-14	2002-02-13	$7700.00	Window Closed / Lapsed

Viscoelastic cleaning compositions with long relaxation times

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag