US4814102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergents containing oxyalkylated, carboxyl-containing polymers
Assignee: BASF SE
•
Filing: 1988-03-31
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Granted: 1989-03-21
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Expires: 2008-03-31
Abstract
Abstract Detergents which contain from 0.01 to 20% by weight of oxyalkylated, carbonyl-containing polymers can be prepared by reacting. (A) a polymer which contains, as copolymerized units, one or more monoethylenically unsaturated C 3 -C 6 -carboxylic acids with (B) ethylene oxide, propylene oxide, n-butylene oxide, isobutylene oxide or a mixture of these, in an aqueous medium at up to 150° C.
Inventors
- 👤 Richard Baur
- 👤 Walter Denzinger
- 👤 Albrecht Eckell
- 👤 Heinrich Hartmann
- 👤 Josef Mueller
- 👤 Hans-Juergen Raubenheimer
- 👤 Wolfgang Trieselt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:20
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/378; C08; C08F; C08F8/00; C08F8/14; C11D3/3757; C11D3/3769; C11D3/3773; C11D3/3784
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
103 words
A detergent comprising, as an added builder, an oxyalkylated, carboxyl-containing polymer which can be prepared by reacting (A) polymers which contain, as monomeric units, one or more monoethylenically unsaturated C 3 -C 6 -carboxylic acids and (B) from 3 to 80% by weight, based on the polymers (A), of ethylene oxide, propylene oxide, n-butylene oxide, isobutylene oxide or a mixture of these, in an aqueous medium at up to 150° C., the builder simultaneously being an incrustation inhibitor and a dispersant for dirt particles in the wash liquor, and being present in the detergent in amounts of from 0.1 to 20% by weight.
Claim 2
Dependent Claim
103 words
A detergent comprising, as an added builder, an oxyalkylated, carboxyl-containing polymer which can be prepared by reacting (A) polymers which contain, as monomeric units, one or more monoethylenically unsaturated C 3 -C 6 -carboxylic acids and (B) from 3 to 80% by weight, based on the polymers (A), of ethylene oxide, propylene oxide, n-butylene oxide, isobutylene oxide or a mixture of these, in an aqueous medium at up to 150° C., the builder simultaneously being an incrustation inhibitor and a dispersant for dirt particles in the wash liquor, and being present in the detergent in amounts of from 0.1 to 20% by weight.
Claim 3
Dependent Claim
25 words
A detergent as claimed in claim 1, wherein the polymer (A) used is a homopolymer of a monoethylenically unsaturated C 3 -C 6 -carboxylic acid.
Claim 4
Dependent Claim
37 words
A detergent as claimed in claim 1, wherein the polymer (A) used is a copolymer of (a) monoethylenically unsaturated C 3 -C 6 -monocarboxylic acids and (b) monoethylenically unsaturated dicarboxylic acids of 4 to 6 carbon atoms.
Claim 5
Dependent Claim
149 words
A detergent as claimed in claim 1, wherein the polymer (A) used is a copolymer of (a) from 5 to 40% by weight of one or more monoethylenically unsaturated C 3 -C 6 -monocarboxylic acids, (b) from 5 to 40% by weight of one or more monoethylenically unsaturated dicarboxylic acids of 4 to 6 carbon atoms, (c) from 0 to 80% by weight of one of more hydroxy-C 2 -C 6 -alkyl esters of mono- or dicarboxylic acids according to (a) and (b) and (d) from 0 to 20% by weight of one or more amides or nitriles of mono- or dicarboxylic acids according to (a) and (b) or of one or more esters of monohydric C 1 -C 4 -alcohols with the said acids, vinylphosphonic acid, vinylsulfonic acid, vinyl acetate, vinyl propionate and/or acrylamido-2-methylpropanesulfonic acid, the sum of the percentages by weight (a) to (d) always being 100.
Claim 6
Dependent Claim
42 words
A detergent as claimed in claim 1, wherein the oxyalkylated carboxyl-containing polymers can be prepared by reacting (A) and (B) in the presence of from 0.5 to 5% by weight, based on the alkylene oxides (B) used, of thioethers of SH-containing compounds.
Claim 7
Dependent Claim
47 words
A detergent as claimed in claim 1, wherein the oxyalkylated polymers have a K value of from 8 to 200 (determined according to H. Fikentscher in aqueous solution at pH 7, at 25° C. and at a polymer concentration of the Na salt of 1% by weight).
Claim 8
Dependent Claim
47 words
The detergent as claimed in claim 1, wherein the oxyalkylated polymers have a K value of from 15 to 100 (determined according to H. Fikentscher in aqueous solution at pH 7, at 25° C. and at a polymer concentration of the Na salt of 1% by weight).
Claim 9
Dependent Claim
20 words
A detergent as claimed in claim 1, wherein the alkali metal and/or ammonium salts of oxyalkylated, carboxyl-containing polymers are used.
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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) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |