US5227446A
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US
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Graft copolymers of monosaccharides, oligosaccharides, polysaccharides and modified polysaccharides, the preparation thereof, and their use
Assignee: BASF SE
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Filing: 1991-02-01
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Granted: 1993-07-13
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Expires: 2011-02-01
Abstract
Abstract Graft copolymers obtainable by free radical-initiated copolymerization of (A) a monomer mixture comprising (a) a monoethylenically unsaturated C4- to C8-dicarboxylic acid, or an anhydride, alkali metal salt or ammonium salt thereof, (b) a monoethylenically unsaturated C3- to C10-carboxylic acid, or an alkali metal salt or ammonium salt thereof, (c) if desired another monoethylenically unsaturated monomer which can be copolymerized with monomer (a) and (b), and (d) a monomer containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of (B) a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically or enzymatically degraded polysaccharide, oxidized, hydrolytically or enzymatically degraded polysaccharide, or chemically modified monosaccharide, oligosaccharide or polysaccharide, in the weight ratio (A):(B) of (95 to 20):(5 to 80), a process for the preparation of the graft copolymers, and detergents and cleaners containing the graft copolymers in amounts of from 0.1 to 20% by weight, are described.
Inventors
- 👤 Walter Denzinger
- 👤 Heinrich Hartmann
- 👤 Alexander Kud
- 👤 Richard Baur
- 👤 John Feldmann
- 👤 Hans-Juergen Raubenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:32
CPC Classifications
C; C08; C08F; C08F251/00; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/228; C11D3/37; C11D3/3788
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
A graft copolymer of monosaccharides, oligosaccharides, polysaccharides and derivatives thereof, which is obtainable by free radical-initiated copolymerization of (A) a monomer mixture comprising (a) from 90 to 10% by weight of a monoethylenically unsaturated C 4 - to C 8 -dicarboxylic acid, or an anhydride, alkali metal salt or ammonium salt thereof, (b) from 10 to 90% by weight of a monethylenically unsaturated C 3 - to C 10 -carboxylic acid, or an alkali metal salt or ammonium salt thereof, (c) from 0 to 40% by weight of another monoethylenically unsaturated monomer which can be copolymerized with monomers (a) and (b), and (d) from 0 to 5% by weight of a monomer containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of (B) a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically or enzymatically degraded polysaccharide, oxidized, hydrolytically or enzymatically degraded polysaccharide, or chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of said compounds, in the weight ratio (A):(B) of (95 to 20):(5 to 80).
Claim 2
Dependent Claim
169 words
A graft copolymer of monosaccharides, oligosaccharides, polysaccharides and derivatives thereof, which is obtainable by free radical-initiated copolymerization of (A) a monomer mixture comprising (a) from 90 to 10% by weight of a monoethylenically unsaturated C 4 - to C 8 -dicarboxylic acid, or an anhydride, alkali metal salt or ammonium salt thereof, (b) from 10 to 90% by weight of a monethylenically unsaturated C 3 - to C 10 -carboxylic acid, or an alkali metal salt or ammonium salt thereof, (c) from 0 to 40% by weight of another monoethylenically unsaturated monomer which can be copolymerized with monomers (a) and (b), and (d) from 0 to 5% by weight of a monomer containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of (B) a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically or enzymatically degraded polysaccharide, oxidized, hydrolytically or enzymatically degraded polysaccharide, or chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of said compounds, in the weight ratio (A):(B) of (95 to 20):(5 to 80).
Claim 3
Dependent Claim
178 words
A detergent or cleaning agent which contains surfactants as the essential constituents, containing from 0.1 to 20% by weight of a graft copolymer obtainable by free radical-initiated copolymerization of (A) monomer mixtures of (a) from 90 to 10% by weight of a monoethylenically unsaturated C 4 - to C 8 -dicarboxylic acid, or an anhydride, alkali metal salt and/or ammonium salt thereof, (b) from 10 to 90% by weight of a monoethylenically unsaturated C 3 - to C 10 -carboxylic acid, or an alkali metal salt and/or ammonium salt thereof, (c) from 0 to 40% by weight of another monoethylenically unsaturated monomer which is copolymerizable with monomers (a) and (b), and (d) from 0 to 5% by weight of a monomer containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of (B) a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically or enzymatically degraded polysaccharide, oxidized, hydrolytically or enzymatically degraded polysaccharie, or chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of said compounds, in the weight ratio (A):(B) of (95 to 20):(5 to 80).
Claim 4
Dependent Claim
178 words
A detergent or cleaning agent which contains surfactants as the essential constituents, containing from 0.1 to 20% by weight of a graft copolymer obtainable by free radical-initiated copolymerization of (A) monomer mixtures of (a) from 90 to 10% by weight of a monoethylenically unsaturated C 4 - to C 8 -dicarboxylic acid, or an anhydride, alkali metal salt and/or ammonium salt thereof, (b) from 10 to 90% by weight of a monoethylenically unsaturated C 3 - to C 10 -carboxylic acid, or an alkali metal salt and/or ammonium salt thereof, (c) from 0 to 40% by weight of another monoethylenically unsaturated monomer which is copolymerizable with monomers (a) and (b), and (d) from 0 to 5% by weight of a monomer containing two or more ethylenically unsaturated, non-conjugated double bonds in the molecule, in the presence of (B) a monosaccharide, oligosaccharide, polysaccharide, oxidatively, hydrolytically or enzymatically degraded polysaccharide, oxidized, hydrolytically or enzymatically degraded polysaccharie, or chemically modified monosaccharide, oligosaccharide or polysaccharide, or a mixture of said compounds, in the weight ratio (A):(B) of (95 to 20):(5 to 80).
Claim 5
Dependent Claim
28 words
A graft copolymer as claimed in claim 1 wherein component (B) is selected from the group consisting of a monosaccharide, an oligosaccharide, a polysaccharide or a mixture 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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |