US4138352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent compositions with antisoil and antiredeposition properties
Assignee: Dow Chemical Co
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Filing: 1978-02-03
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Granted: 1979-02-06
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Expires: 1998-02-03
Abstract
Abstract Detergent compositions of particular value in washing synthetic fabrics, especially polyester, inhibiting the redeposition of soil and imparting antisoil properties are based essentially on a combination of a nonionic surfactant and a hydroxybutylated methylcellulose of low molecular weight and having a relatively high degree of substitution.
Inventors
- 👤 Arthur S. Teot
- 👤 Percy J. Hamlin
- 👤 Albert B. Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:40
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D1/00; C11D1/66; C11D1/72
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
A detergent composition wherein the essential components thereof consist of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 60 percent of sodium sesquicarbonate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 0.1-2 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 10 percent of Na 2 SO 4 .
Claim 2
Dependent Claim
90 words
A detergent composition wherein the essential components thereof consist of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 60 percent of sodium sesquicarbonate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 0.1-2 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 10 percent of Na 2 SO 4 .
Claim 3
Dependent Claim
78 words
A detergent composition wherein the composition consists essentially of (a) about 20 percent by weight of an ethylene oxide-polypropylene glycol block copolymer, (b) about 60 percent of sodium sesquicarbonate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 0.1-2 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 10 percent of Na 2 SO 4 .
Claim 4
Dependent Claim
78 words
A detergent composition wherein the composition consists essentially of (a) about 20 percent by weight of an ethylene oxide-polypropylene glycol block copolymer, (b) about 60 percent of sodium sesquicarbonate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 0.1-2 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 10 percent of Na 2 SO 4 .
Claim 5
Dependent Claim
68 words
A detergent composition which consists essentially of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 35 percent of sodium tripolyphosphate, (c) about 1 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (d) about 44 percent of Na 2 SO 4 .
Claim 6
Dependent Claim
68 words
A detergent composition which consists essentially of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 35 percent of sodium tripolyphosphate, (c) about 1 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (d) about 44 percent of Na 2 SO 4 .
Claim 7
Dependent Claim
87 words
A detergent composition which consists essentially of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 25 percent of sodium nitrilotriacetate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 1 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 44 percent of Na 2 SO 4 .
Claim 8
Dependent Claim
87 words
A detergent composition which consists essentially of (a) about 20 percent by weight of a C 8 -C 22 alkyl monoether of a polyethylene glycol of about 5-20 alkylene oxide units, (b) about 25 percent of sodium nitrilotriacetate, (c) about 10 percent of sodium silicate having a ratio of SiO 2 /Na 2 O of about 2-3/1, (d) about 1 percent of a hydroxybutylmethylcellulose having a DS of about 1.5-2.3 and an MS of about 0.01-0.6, and (e) about 44 percent of Na 2 SO 4 .
References Cited (Backward Citations)
US3590001A
Cited
GB1314897A
Cited
FR2103929A5
Cited
US3749675A
Cited
US3843563A
Cited
ZA727174B
Cited
ZA735423B
Cited
US3957695A
Cited
US3865754A
Cited
US3925228A
Cited
DE2613790A1
Cited
US4000093A
Cited
NL7701022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |