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
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Filing: 1985-08-22
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Granted: 1987-04-21
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Expires: 2005-08-22
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.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 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 |