US4784789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid aqueous cleaning preparations for hard surfaces
Assignee: Henkel AG and Co KGaA
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Filing: 1987-04-28
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Granted: 1988-11-15
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Expires: 2007-04-28
Abstract
Abstract A liquid cleaning preparation for hard surfaces comprising an amphoteric polymer compound containing both anionic and cationic centers in the molecular thereof. The polymer is obtained by copolymerization of a cationic vinyl monomer with an anionic vinyl polymer, and in a 0.01% solution of water having a German hardness of 16°d produces irreversible hydrophilization of polyvinyl chloride with increments in the wetting tension of at least 3 mN/m. The preparation may contain an anionic, nonionic, cationic or amphoteric surfactant or mixtures thereof. The polymer compound is present in an amount of from about 0.01% to about 10% by weight, based on the weight of the preparation, and the surfactant is present in a weight ratio of polymer to surfactant of from about 20:1 to about 1:1.
Inventors
- 👤 Peter Jeschke
- 👤 Eva Kiewert
- 👤 Ludwig Schieferstein
- 👤 Klaus Schumann
- 👤 Klaus-Dieter Wisotzki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:51
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/75; C09; C09K; C09K3/00; C09K3/16; C09K3/18; C11D3/00; C11D3/16; C11D3/37; C11D3/3796
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
126 words
In a liquid cleaning preparation for hard surfaces comprising an amphoteric polymer compound containing both anionic and cationic centers in the molecule thereof, said polymer compound having been obtained by copolymerization of a cationic vinyl monomer with an anionic vinyl polymer which in a 0.01% solution of water having a hardness of 16°d produce irreversible hydrophilization of polyvinyl chloride with increments in the wetting tension of at least 3mN/m, and an anionic, nonionic, cationic or amphoteric surfactant or mixtures thereof, said polymer compound being present in an amount of from about 0.01% to about 10% by weight, based on the weight of said preparation, the improvement comprising said polymer being present in a weight ratio of polymer to surfactant of from about 20:1 to about 1:1.
Claim 2
Dependent Claim
126 words
In a liquid cleaning preparation for hard surfaces comprising an amphoteric polymer compound containing both anionic and cationic centers in the molecule thereof, said polymer compound having been obtained by copolymerization of a cationic vinyl monomer with an anionic vinyl polymer which in a 0.01% solution of water having a hardness of 16°d produce irreversible hydrophilization of polyvinyl chloride with increments in the wetting tension of at least 3mN/m, and an anionic, nonionic, cationic or amphoteric surfactant or mixtures thereof, said polymer compound being present in an amount of from about 0.01% to about 10% by weight, based on the weight of said preparation, the improvement comprising said polymer being present in a weight ratio of polymer to surfactant of from about 20:1 to about 1:1.
Claim 3
Dependent Claim
28 words
A liquid cleaning preparation in accordance with claim 1 wherein said polymer compound is present therein in an amount of from about 0.02% to about 5% by weight.
Claim 4
Dependent Claim
23 words
A liquid cleaning preparation in accordance with claim 1 wherein said weight ratio of polymer to surfactant is from about 10:1 to 1:1.
Claim 5
Dependent Claim
31 words
A liquid cleaning preparation in accordance with claim 1 wherein said polymer compound contains at least 1 mole of a nitrogen containing acrylic acid derivative per 1 mole of acrylic acid.
Claim 6
Dependent Claim
27 words
A liquid cleaning preparation in accordance with claim 1 wherein said nonionic surfactant is in amine oxide containing at least one C 10 -C 20 alkyl group.
Claim 7
Dependent Claim
28 words
A liquid cleaning preparation in accordance with claim 5 wherein said amine oxide is selected from the group consisting of N-dodecyl-N,N-dimethylamine oxide, N-tetradecyl-N, N-dihydroxyethylamine oxide, and hexadecyl-N,N-bis-(2,3-dihydroxypropyl)-amine oxide.
Claim 8
Dependent Claim
53 words
A liquid cleaning preparation in accordance with claim 1 wherein said nonionic surfactant is an adduct of from about 4 to about 40 moles of ethylene oxide or ethylene oxide and propylene oxide with 1 mole of fatty alcohol, alkane diol, alkane phenol, fatty acid, fatty amine, fatty acid amide or alkane sulfonamide.
Claim 9
Dependent Claim
24 words
A liquid cleaning preparation in accordance with claim 1 wherein said anionic surfactant is selected from the group consisting of sulfonate and sulfate surfactants.
Claim 10
Dependent Claim
30 words
A liquid cleaning preparation in accordance with claim 8 wherein said sulfonate surfactant comprises an alkylbenzene sulfonate containing from about 9 to about 15 carbon atoms in the alkyl group.
Claim 11
Dependent Claim
22 words
A liquid cleaning preparation in accordance with claim 8 wherein said sulfate surfactant comprises a sulfuric acid monoester of a primary alcohol.
Claim 12
Dependent Claim
28 words
A liquid cleaing preparation in accordance with claim 1 wherein said anionic surfactant comprises a fatty acid ester amide of a hydroxy or amino-carboxylic acid or sulfonic acid.
Claim 13
Dependent Claim
26 words
A liquid cleaning preparation in accordance with claim 1 wherein said cationic surfactant contains at least one hydrophobic group and at least one basic, water-solubilizing group.
Claim 14
Dependent Claim
39 words
A liquid cleaning preparation in accordance with claim 1 wherein said amphoteric polymer compound is derived from acrylic acid and salts thereof, dimethylaminoethyl methacrylate, dimethylaminoneopentyl acrylate, dimethylaminopropyl methacrylamide, ethylacrylate, methacrylamidopropyl trimethylammonium chloride, methacrylic acid and salts thereof, and methylmethacrylate.
Claim 15
Dependent Claim
16 words
A liquid cleaning preparation in accordance with claim 1 including a water-soluble or water-emulsifiable organic solvent.
Claim 16
Dependent Claim
21 words
A liquid cleaning preparation in accordance with claim 1 including from 0 to about 3% by weight of a complexing agent.
Claim 17
Dependent Claim
31 words
A liquid cleaning preparation in accordance with claim 15 wherein said complexing agent is selected from the group consisting of polyphosphate, pyrophosphate and amino polycarboxylic acid including alkali metal salts thereof.
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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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |