← Back to Patent Explorer
US4659494A Expired / Lapsed US ⏱️ 0.0 years remaining

Carpet cleaning composition contains a cellulose powder from a hardwood source

Assignee: Henkel AG and Co KGaA
•
Filing: 1985-08-22
•
Granted: 1987-04-21
•
Expires: 2005-08-22
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Powder-form compositions containing as its principal components cellulose powder, organic solvents, and water. The compositions are suitable for cleaning textiles, particularly carpets, and are distinguished by high cleaning power and minimal dust generation.

Inventors

  • 👤 Heinz-Dieter Soldanski
  • 👤 Bernd-Dieter Holdt
  • 👤 Ursula Meier

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 23:16
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/40; C11D7/44; C11D3/00; C11D3/0005; C11D3/0031; C11D3/16; C11D3/20; C11D3/22; C11D3/222; D; D06; D06L; D06L1/00; D06L1/01

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 96 words
In a powder-form dry cleaning composition for textiles which is free from zeolites and urea-formaldehyde resin, and which consists essentially of about 35-70% of an adsorbent, about 25-60% of water, and about 5-22% of an organic solvent, the improvement wherein adsorbent said is predominately a cellulose powder derived from a hardwood cellulose having a particle size of from about 5 to about 50 μm is present therein, said cellulose powder being essentially colorless and substantially free from lignin and other impurities associated with the hardwood sources, all percentages being by weight based upon the total composition.
Claim 2
Dependent Claim 96 words
In a powder-form dry cleaning composition for textiles which is free from zeolites and urea-formaldehyde resin, and which consists essentially of about 35-70% of an adsorbent, about 25-60% of water, and about 5-22% of an organic solvent, the improvement wherein adsorbent said is predominately a cellulose powder derived from a hardwood cellulose having a particle size of from about 5 to about 50 μm is present therein, said cellulose powder being essentially colorless and substantially free from lignin and other impurities associated with the hardwood sources, all percentages being by weight based upon the total composition.
Claim 3
Dependent Claim 23 words
A dry cleaning composition in accordance with claim 1 wherein the cellulose powder is derived from the mechanical size reduction of beechwood cellulose.
Claim 4
Dependent Claim 16 words
A dry cleaning composition in accordance with claim 1 wherein the composition also contains a surfactant.
Claim 5
Dependent Claim 19 words
A dry cleaning composition in accordance with claim 1 wherein the cellulose powder is the only adsorbent present therein.
Claim 6
Dependent Claim 128 words
A powder-form dry cleaning composition for cleaning textiles which is free from zeolites and urea-formaldehyde resins consisting essentially of: A. from about 35 to about 70% by weight of at least one cellulose powder derived from a hardwood cellulose having a particle size in the range of from about 5 to about 50 μm, said cellulose powder being essentially colorless and substantially free from lignin and other impurities associated with the hardwood sources, B. from about 25 to about 60% by weight of water, C. from about 5 to about 22% by weight of at least one organic solvent, D. from 0 to 4% by weight of at least one anionic and/or nonionic surfactant, and E. from 0 to 5% by weight of other dry cleaning composition additives.
Claim 7
Dependent Claim 128 words
A powder-form dry cleaning composition for cleaning textiles which is free from zeolites and urea-formaldehyde resins consisting essentially of: A. from about 35 to about 70% by weight of at least one cellulose powder derived from a hardwood cellulose having a particle size in the range of from about 5 to about 50 μm, said cellulose powder being essentially colorless and substantially free from lignin and other impurities associated with the hardwood sources, B. from about 25 to about 60% by weight of water, C. from about 5 to about 22% by weight of at least one organic solvent, D. from 0 to 4% by weight of at least one anionic and/or nonionic surfactant, and E. from 0 to 5% by weight of other dry cleaning composition additives.
Claim 8
Dependent Claim 63 words
A powder-form dry cleaning composition in accordance with claim 5 wherein the following quantities of ingredients are present: Component A--from about 45 to about 55% by weight, Component B--from about 30 to about 40% by weight, Component C--from about 10 to about 15% by weight, Component D--from about 0.05 to about 1% by weight, and Component E--from 0 to about 2% by weight.
Claim 9
Dependent Claim 25 words
A dry cleaning composition in accordance with claim 5 wherein the cellulose powder in A. is derived from the mechanical size reduction of beechwood cellulose.
Claim 10
Dependent Claim 23 words
A dry cleaning composition in accordance with claim 5 wherein the cellulose powder in A. is the only adsorbent present in the composition.
Claim 11
Dependent Claim 32 words
A dry cleaning composition in accordance with claim 5 wherein the organic solvent in C. is one or more of a C 2 -C 3 alcohol, propylene glycol, and a petroleum fraction.
Claim 12
Dependent Claim 49 words
A dry cleaning composition in accordance with claim 5 wherein component D. is an anionic surfactant which is at least one of a fatty alcohol sulfate containing from 12 to 18 carbon atoms and a monoalkyl sulfosuccinate containing from 16 to 22 carbon atoms in the alcohol portion thereof.
Claim 13
Dependent Claim 82 words
A method for cleaning textiles comprising the steps of a. applying to the textile the dry cleaning composition of claim 1 in a quantity of from about 20 to about 200 g/m 2 , b. rubbing the composition of claim 1 into the textile for from about 0.5 to about 2.5 minutes per square meter, c. after the composition of claim 1 has dried, mechanically removing the composition of claim 1 and any dirt mixed with or adhering thereto from the textile.
Claim 14
Dependent Claim 31 words
A method in accordance with claim 11 wherein in step a. the composition of claim 1 is used in a quantity of from about 50 to about 150 g/m 2 .
Claim 15
Dependent Claim 31 words
A method in accordance with claim 12 wherein in step b. the composition of claim 1 is rubbed into the textile for from about 0.5 to about 1.5 minutes/m 2 .
Claim 16
Dependent Claim 13 words
A method in accordance with claim 11 wherein the textile is a carpet.

References Cited (Backward Citations)

US2165586A Cited
US2344268A Cited
US3240713A Cited
US3418243A Cited
US3630919A Cited
DE2544605A1 Cited
GB2001099A Cited
US4440661A Cited
GB2134917A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-20 1990-10-20 1991-04-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-20 1994-10-20 1995-04-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-20 1998-10-20 1999-04-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag