US6736857B2
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US
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Method for imparting soil and stain resistance to carpet
Assignee: 3M Innovative Properties Co
•
Filing: 2001-05-25
•
Granted: 2004-05-18
•
Expires: 2021-05-25
Abstract
Abstract A solventless cleaning and treating composition for carpet is described. The composition comprises an aqueous solution of a stainblocking polymer, a silsesquioxane anti-soiling polymer, a surfactant and optionally a sequesting agent or salt.
Inventors
- 👤 John C. Chang
- 👤 Robert F. Deutsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:20
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/162; C11D3/0005; C11D3/0031; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/37; D06M15/39; D06M15/41; D06M15/412; D06M15/643
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
34 words
A composition comprising a stainblocker, silsesquioxane, and surfactant; wherein said composition is an aqueous composition having a pH of at least 6, and said stainblocker comprises a copolymer of methacrylic acid and butyl acrylate.
Claim 2
Dependent Claim
34 words
A composition comprising a stainblocker, silsesquioxane, and surfactant; wherein said composition is an aqueous composition having a pH of at least 6, and said stainblocker comprises a copolymer of methacrylic acid and butyl acrylate.
Claim 3
Dependent Claim
43 words
The composition of claim 1 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is a substituted or unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 4
Dependent Claim
41 words
The composition of claim 2 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is an unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 5
Dependent Claim
24 words
The composition of claim 2 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R and R′ are —CH 3 .
Claim 6
Dependent Claim
54 words
The composition of claim 1 , wherein the silsesquioxane comprises cocondensates of R—Si(OR′) 3 and silanes selected from Si(OR′) 4 and R 2 —Si(OR′) 2 , or combinations thereof, wherein R is an unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 7
Dependent Claim
13 words
The composition of claim 1 , wherein the surfactant comprises a hydrocarbon surfactant.
Claim 8
Dependent Claim
12 words
The composition of claim 6 , wherein the hydrocarbon surfactant is anionic.
Claim 9
Dependent Claim
72 words
The composition of claim 7 , wherein the anionic surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, or combinations thereof.
Claim 10
Dependent Claim
22 words
The composition of claim 6 , wherein the hydrocarbon surfactant is a nonionic surfactant having an HLB value of at least 18.
Claim 11
Dependent Claim
15 words
The composition of claim 9 , wherein the nonionic surfactant is nonylphenol polyethylene glycol ether.
Claim 12
Dependent Claim
17 words
The composition of claim 6 wherein the hydrocarbon surfactant comprises a combination of anionic and nonionic surfactants.
Claim 13
Dependent Claim
76 words
The composition of claim 6 , wherein the hydrocarbon surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, nonylphenol polyethylene glycol ether or combinations thereof.
Claim 14
Dependent Claim
19 words
The composition of claim 11 , wherein the hydrocarbon surfactant comprises sodium xylene sulfonate and nonylphenol polyethylene glycol ether.
Claim 15
Dependent Claim
14 words
The composition of claim 1 , wherein the pH is from 6 to 8.
Claim 16
Dependent Claim
119 words
The composition of claim 6 , wherein said silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is a substituted or unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms; said surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, nonylphenol polyethylene glycol ether or combinations thereof; and said pH is from 6 to 8.
Claim 17
Dependent Claim
43 words
The composition of claim 6 , wherein said silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R and R′ are —CH 3 ; said surfactant comprises sodium xylene sulfonate and nonylphenol polyethylene glycol ether; and said pH is from 6 to 8.
Claim 18
Dependent Claim
34 words
The composition of claim 1 , wherein the composition comprises: (a) 1 to 4 weight percent of a stainblocker; (b) 1 to 4 weight percent silsesquioxane; and (c) 1 to 4 weight percent surfactant.
Claim 19
Dependent Claim
34 words
The composition of claim 1 , wherein the composition comprises: (a) 2 to 3 weight percent of a stainblocker; (b) 2 to 3 weight percent silsesquioxane; and (c) 2 to 3 weight percent surfactant.
Claim 20
Dependent Claim
14 words
The composition of claim 1 further comprising a sequestering agent, salt, or combination thereof.
Claim 21
Dependent Claim
53 words
The composition of claim 19 , wherein said sequestering agent comprises EDTA or a salt thereof, citric acid or a salt thereof, boric acid or a salt thereof, nitrilotriacetic acid or a salt thereof, alkali metal orthophosphates, an alkali metal tripolyphosphate, an alkali metal pyrophosphate, an alkali metal hexametaphosphate, or a mixture thereof.
Claim 22
Dependent Claim
13 words
The composition of claim 20 , wherein said sequestering agent comprises sodium tripolyphosphate.
Claim 23
Dependent Claim
17 words
The composition of claim 1 , wherein the composition comprises less than 1 weight percent organic solvent.
Claim 24
Dependent Claim
17 words
The composition of claim 1 , wherein the composition comprises less than 0.5 weight percent organic solvent.
Claim 25
Dependent Claim
17 words
The composition of claim 1 , wherein the composition comprises less than 0.1 weight percent organic solvent.
Claim 26
Independent Claim
65 words
A method of cleaning a fibrous polyamide substrate while imparting soil and stain resistance properties, comprising the steps of: (a) water extracting the substrate with an aqueous composition having a pH of at least 6 comprising: (i) a stainblocker comprising a copolymer of methacrylic acid and butyl acrylate; (ii) a silsesquioxane; and (iii) a surfactant; and (b) vacuum removal of the composition from the substrate.
Claim 27
Independent Claim
65 words
A method of cleaning a fibrous polyamide substrate while imparting soil and stain resistance properties, comprising the steps of: (a) water extracting the substrate with an aqueous composition having a pH of at least 6 comprising: (i) a stainblocker comprising a copolymer of methacrylic acid and butyl acrylate; (ii) a silsesquioxane; and (iii) a surfactant; and (b) vacuum removal of the composition from the substrate.
Claim 28
Dependent Claim
43 words
The method of claim 25 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is a substituted or unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 29
Dependent Claim
41 words
The method of claim 26 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is an unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 30
Dependent Claim
24 words
The method of claim 26 , wherein the silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R and R′ are —CH 3 .
Claim 31
Dependent Claim
54 words
The method of claim 25 , wherein the silsesquioxane comprises cocondensates of R—Si(OR′) 3 and silanes selected from Si(OR′) 4 and R 2 —Si(OR′) 2 , or combinations thereof, wherein R is an unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms.
Claim 32
Dependent Claim
13 words
The method of claim 25 , wherein the surfactant comprises a hydrocarbon surfactant.
Claim 33
Dependent Claim
12 words
The method of claim 30 , wherein the hydrocarbon surfactant is anionic.
Claim 34
Dependent Claim
72 words
The method of claim 31 , wherein the anionic surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, or combinations thereof.
Claim 35
Dependent Claim
12 words
The method of claim 30 , wherein the hydrocarbon surfactant is nonionic.
Claim 36
Dependent Claim
15 words
The method of claim 33 , wherein the nonionic surfactant is nonylphenol polyethylene glycol ether.
Claim 37
Dependent Claim
17 words
The method of claim 30 wherein the hydrocarbon surfactant comprises a combination of anionic and nonionic surfactants.
Claim 38
Dependent Claim
76 words
The method of claim 30 , wherein the hydrocarbon surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, nonylphenol polyethylene glycol ether or combinations thereof.
Claim 39
Dependent Claim
19 words
The method of claim 35 , wherein the hydrocarbon surfactant comprises sodium xylene sulfonate and nonylphenol polyethylene glycol ether.
Claim 40
Dependent Claim
19 words
The method of claim 25 , wherein the composition has a pH within the range of 6 to 8.
Claim 41
Dependent Claim
120 words
The method of claim 25 , wherein said silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R is a substituted or unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, and R′ is an alkyl radical with 1 to 4 carbon atoms; and said surfactant is sodium xylene sulfonate, sodium lauryl sulfate, sodium myristyl sulfate, sodium lauryl ether (2) sulfate, sodium decyl sulfate, ammonium myristyl ether sulfate, sodium nonylphenol polyglycol ether (15) sulfate, sodium C 16 -C 18 α-olefin sulfonate, sodium dodecylbenzenesulfonate, sodium naphthyl sulfonate, sodium dihexyl sulfosuccinate, sodium laurate, sodium stearate, sodium ether (5) stearate, potassium ricinoleate, sodium myristoyl sarcosine, sodium N-methyl-N-oleyl taurate, nonylphenol polyethylene glycol ether or combinations thereof; and said pH is from 6 to 8.
Claim 42
Dependent Claim
43 words
The method of claim 25 , wherein said silsesquioxane comprises compounds of the formula R—Si(OR′) 3 wherein R and R′ are —CH 3 ; said surfactant comprises sodium xylene sulfonate and nonylphenol polyethylene glycol ether; and said pH is from 6 to 8.
Claim 43
Dependent Claim
34 words
The method of claim 25 , wherein the composition comprises: (a) 1 to 4 weight percent of a stainblocker; (b) 1 to 4 weight percent silsesquioxane; and (c) 1 to 4 weight percent surfactant.
Claim 44
Dependent Claim
34 words
The method of claim 25 , wherein the composition comprises: (a) 2 to 3 weight percent of a stainblocker; (b) 2 to 3 weight percent silsesquioxane; and (c) 2 to 3 weight percent surfactant.
Claim 45
Dependent Claim
18 words
The method of claim 25 , wherein the composition further comprises a sequestering agent, salt, or combination thereof.
Claim 46
Dependent Claim
53 words
The method of claim 43 , wherein said sequestering agent comprises EDTA or a salt thereof, citric acid or a salt thereof, boric acid or a salt thereof, nitrilotriacetic acid or a salt thereof, alkali metal orthophosphates, an alkali metal tripolyphosphate, an alkali metal pyrophosphate, an alkali metal hexametaphosphate, or a mixture thereof.
Claim 47
Dependent Claim
13 words
The method of claim 44 , wherein said sequestering agent comprises sodium tripolyphosphate.
Claim 48
Dependent Claim
17 words
The method of claim 25 , wherein the composition comprises less than 1 weight percent organic solvent.
Claim 49
Dependent Claim
17 words
The method of claim 25 , wherein the composition comprises less than 0.5 weight percent organic solvent.
Claim 50
Dependent Claim
17 words
The method of claim 25 , wherein the composition comprises less than 0.1 weight percent organic solvent.
Claim 51
Dependent Claim
11 words
The method of claim 25 , wherein the substrate is carpet.
Claim 52
Dependent Claim
12 words
The method of claim 49 , wherein the substrate comprises nylon carpet.
Claim 53
Dependent Claim
25 words
The method of claim 25 , wherein the composition is in contact with the substrate from less than 10 seconds during the water extracting step.
Claim 54
Dependent Claim
27 words
The method of claim 25 , further comprising the step of (c) contacting the substrate with an aqueous composition comprising: (i) a stainblocker; and (ii) a silsesquioxane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-05-18 | 2007-11-17 | 2008-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-05-18 | 2011-11-17 | 2012-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-05-18 | 2015-11-17 | 2016-05-18 | $7700.00 | Window Closed / Lapsed |