Patent US4921629A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4921629A Expired / Lapsed US ⏱️ 0.0 years remaining

Heavy duty hard surface liquid detergent

Assignee: Colgate Palmolive Co
•
Filing: 1988-04-13
•
Granted: 1990-05-01
•
Expires: 2008-04-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A single phase, highly aklaline, liquid detergent composition particularly effective in removing airborne kitchen grease from hard surfaces is provided which comprises, by weight: a. from about 1 to 5% of a surfactant selected from the group consisting of nonionic surfactants (including alcohol ethoxylates and amine oxides, wherein the alcohol ethoxylate is selected from the group consisting of linear primary alcohol ethoxylates, random secondary alcohol ethoxylates) and amphoteric surfactants (comprising water-soluble betaines) and mixtures thereof; b. about 2% of a builder selected from the group consisting of tetrapotassium pyrophosphate (TKPP), sodium tripolyphosphate (STPP), sodium metasilicate, sodium carbonate, sodium bicarbonate, and c. about 2% of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; d. from about 2 to 8% of at least one water miscible, preferably polar organic solvent selected from the group consisting of water soluble glycol ethers (including diethylene glycol monobutyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, and propylene glycol methyl ether) and alkyl acetates; and e. water.

Inventors

  • 👤 Farrokh B. Malihi
  • 👤 Nicholas J. Sparacio

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:34
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/43; C11D3/16; C11D3/26; C11D3/30

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 111 words
A single phase liquid detergent composition especially effective in removing greasy soils from hard surfaces consisting essentially of a mixture of: a. from about 1 to 5% of at least one surfactant selected from the group consisting of nonionic, polar nonionic, and amphoteric surfactants or mixtures thereof; b. about 1-6% of a builder; c. from about 1-5% of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; d. from about 2 to 8% of at least one organic solvent, said solvent selected from the group consisting of water soluble glycol ethers and alkyl acetates; and e. water, wherein the pH of the composition ranges from 9 to 13.
Claim 2
Dependent Claim 111 words
A single phase liquid detergent composition especially effective in removing greasy soils from hard surfaces consisting essentially of a mixture of: a. from about 1 to 5% of at least one surfactant selected from the group consisting of nonionic, polar nonionic, and amphoteric surfactants or mixtures thereof; b. about 1-6% of a builder; c. from about 1-5% of an alkanolamine selected from the group consisting of monoethanolamine, diethanolamine, and triethanolamine; d. from about 2 to 8% of at least one organic solvent, said solvent selected from the group consisting of water soluble glycol ethers and alkyl acetates; and e. water, wherein the pH of the composition ranges from 9 to 13.
Claim 3
Dependent Claim 21 words
The detergent of claim 1 wherein the nonionic surfactant is selected from the group consisting of alcohol ethoxylates and amine oxides.
Claim 4
Dependent Claim 24 words
The detergent of claim 2 wherein the alcohol ethoxylate is selected from the group consisting of linear primary alcohol ethoxylates, random secondary alcohol ethoxylates.
Claim 5
Dependent Claim 30 words
The detergent of claim 3 wherein the surfactant is selected from the group consisting of combinations of high EO--low EO alcohol ethoxylates and combinations of mono or di alkylquaternary compounds.
Claim 6
Dependent Claim 18 words
The detergent of claim 1 wherein the amphoteric surfactant is selected from the group consisting of water-soluble betaines.
Claim 7
Dependent Claim 13 words
The detergent of claim 5 wherein the betaine surfactant is dodecyl dimethylammonium acetate.
Claim 8
Dependent Claim 30 words
The detergent of claim 1 wherein the builder is selected from the group consisting of tetrapotassium pyrophosphate (TKPP), sodium tripolyphosphate (STPP), sodium metasilicate, sodium carbonate, sodium bicarbonate, and mixtures thereof.
Claim 9
Dependent Claim 36 words
The detergent of claim 1 wherein the water soluble glycol ether solvent is selected from the group consisting of diethylene glycol monobutyl ether, ethylene glycol monobutyl ether, ethylene glycol methyl ether, and propylene glycol methyl ether.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-04-30 1993-10-30 1994-05-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-04-30 1997-10-30 1998-05-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-04-30 2001-10-30 2002-05-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag