WO1994016044A1 - Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln - Google Patents
Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln Download PDFInfo
- Publication number
- WO1994016044A1 WO1994016044A1 PCT/EP1993/003697 EP9303697W WO9416044A1 WO 1994016044 A1 WO1994016044 A1 WO 1994016044A1 EP 9303697 W EP9303697 W EP 9303697W WO 9416044 A1 WO9416044 A1 WO 9416044A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- foam
- glycol
- block copolymer
- polyethylene glycol
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0034—Fixed on a solid conventional detergent ingredient
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0026—Low foaming or foam regulating compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3715—Polyesters or polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3726—Polyurethanes
Definitions
- the invention relates to the use of block copolymers containing propylene glycol ether and, where appropriate, ethylene glycol ether units as foam regulators in detergents and / or cleaning agents containing surfactants, a pourable and free-flowing, particulate foam inhibitor, comprising water-soluble or water-dispersible carrier material and block copolymer adsorbed thereon. and processes for the production of such block copolymers as well as such particulate foam inhibiting agents.
- polysiloxanes are known to be comparatively complex to produce with a known good defoamer effect and have the disadvantage that, particularly in more recent times, they are often perceived as not completely satisfactory in terms of their biodegradability.
- Silicone-free foam regulators are also known.
- European Patent EP 87 233 describes a process for producing a low-foaming detergent in which mixtures of an oily or waxy substance and bisamides are applied to a carrier powder, in particular a spray-dried detergent containing surfactants.
- the oily or waxy substance can consist, for example, of petroleum jelly with a melting point of 20 ° C. to 120 ° C.
- German published patent application DT 2857 155 discloses detergents with a foam regulating agent which contains hydrophobic silicon dioxide and a mixture of solid and liquid hydrocarbons, optionally in a mixture with fatty acid esters. Due to the high content of hydrocarbon which is liquid at room temperature, from 22.5% by weight to about 98% by weight, there is a risk of clumping in such foam regulating agents.
- Foam regulating agents containing paraffin wax mixtures and hydrophobized silica, optionally in combination with branched-chain alcohols, are known from German published patent application DE 3400008.
- Powdered defoamers which contain a liquid mixture of higher molecular weight, branched-chain alcohols with hydrophobized silica in combination with a water-insoluble wax on a water-soluble, powdery carrier, are known from German published patent application DE 31 15 644.
- European patent application EP 309931 foam regulating agents were described which contain a relatively complex mixture of paraffin wax and microcrystalline paraffin wax.
- the task was therefore to provide a silicone-free foam regulator which is effective in aqueous washing and cleaning liquors and which can be confectioned in the form of a free-flowing foam regulating agent.
- a silicone-free foam regulator which is effective in aqueous washing and cleaning liquors and which can be confectioned in the form of a free-flowing foam regulating agent.
- both the foam regulator and the foam regulating agent containing it should remain stable in storage and effect in a mixture with conventional detergent or cleaning agent components and should not have any adverse effects on the material to be treated and the environment.
- the invention thus relates to the use of block copolymers containing glycol ether units, which are obtainable by reacting polypropylene glycol with a molecular weight in the range from 1000 to 8000 and optionally polyethylene glycol with a molecular weight in the range from 200 to 20,000 with diisocyanates and / or dicarboxylic acids each with 2 to 44 carbon atoms, as foam regulators in detergents and / or cleaning agents containing surfactants.
- Block copolymers are preferably used which, by reacting diisocyanate and / or dicarboxylic acid with the glycol or the glycols, in a molar ratio of hydroxyl groups to carbonyl groups of from 1: 2 to 2: 1, in particular from 1: 1 to 2: 1 and particularly preferably from 1.1: 1 to 1.9: 1 are available.
- block copolymers are used which can be obtained by reacting diisocyanate and / or dicarboxylic acid with a mixture of polypropylene glycol and polyethylene glycol, in which the molar ratio of polyethylene glycol to poly- propylene glycol up to 1: 1, in particular from 0.1: 1 to 0.9: 1.
- the molar ratio can, however, also be significantly above 1: 1.
- Such block copolymers contain the blocks ([-C3Hö0] a -X) n - and ([-C2H4 ⁇ ] bX) 0 -, in which the numbers a and b result from the molar weights of the polypropylene glycol and polyethylene glycol, respectively, and in the case of degree of ethoxylation b can also be 0,
- X is a bisacyl or bisurethane group
- n is a number greater than 0 and o is a number of at least 0.
- the number of these blocks in the polymer, the molecular ratio of the blocks to one another and the sizes n and o form a complex system which is difficult to illustrate in a general formula.
- Another object of the invention is a granular, free-flowing foam regulating agent which adsorbs 0.5% by weight to 30% by weight of a block copolymer to be used according to the invention to 70% by weight to 99.5% by weight of a granular , contains essentially inorganic phosphate-free carrier material.
- the block copolymers to be used according to the invention are substances with ester and / or urethane groups, which can be obtained by reacting polypropylene glycols, optionally in a mixture with polyethylene glycols, with diisocyanates and / or dicarboxylic acids. These are preferably compounds which, by reacting 1 mol equivalence of diisocyanate and / or dicarboxylic acid with 1 mol equivalents to 2 mol equivalents, in particular 1.1 mol equivalents to 1.9 mol equivalents, of polypropylene glycol and up to 1 mol equivalent, in particular 0. 05 mol equivalents of up to 0.9 mol equivalents of polyethylene glycol are available.
- urethane block copolymers particular preference is given to those which are obtainable by reacting the glycols with diisocyanates in molar ratios of 0H: NC0 from 1: 1 to 1.5: 1.
- the molar ratio of polypropylene glycol to polyethylene glycol is preferably 0.1: 1 to 0.9: 1, in particular 0.2: 1 to 0.8: 1.
- Polyethylene glycol preferably has a molecular weight from 500 to 15,000 and polypropylene glycol, preferably a molecular weight of 500 to 2,000.
- polyethylene glycol and polypropylene glycol in the stated ratio, in which at least part, in particular not more than 90 mol% and particularly preferably 5 mol% to 50 mol%, of the polypropylene glycol and / or of the polyethylene glycol is replaced by longer-chain aliphatic vicinal diols with 10 to 20 C atoms, in particular 12 to 18 C atoms, and / or a, w-diols with 3 to 22 C atoms.
- X represents a bisacyl or a bisurethane grouping, as is obtained by formal condensation with two molar equivalents of an alcohol from a dicarboxylic acid or by formal addition of two molar equivalents of an alcohol from a diisocyanate.
- the bisacyl groups contain a total of 2 to 44, preferably 2 to 12, carbon atoms, which can be arranged between the acyl or isocyanate ends as an alkylene, alkenylene or arylene group.
- the formal derivatives of linear ⁇ , w-dicarboxylic acids and of double carboxyl-substituted aromatics are particularly preferred.
- ester derivatives of oxalic acid, malonic acid, succinic acid, maleic acid, fumaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, brassylic acid, phthalic acid, isophthalic acid, terephthalic acid and mixtures thereof are therefore particularly useful.
- Block copolymers which are particularly useful according to the invention, in which X denotes a bisurethane group, are, in addition to the optionally alkyl-substituted alkylene diisocyanates, for example trimethylhexamethylene diisocyanate, that of isophorone diisocyanate, ortho-, meta- and para-phenylene diisocyanate, the methylene diphenyl diisocyanates and the methylene dicyclohexylhexylhexylhexylhexane Toluene diisocyanates, the xylylene diisocyanates and the tetramethylxylylene diisocyanates and their mixtures of derivable compounds.
- alkyl-substituted alkylene diisocyanates for example trimethylhexamethylene diisocyanate, that of isophorone diisocyanate, ortho-, meta- and para-phenylene diisocyanate, the methylene di
- the isocyanate-terminated or carboxylic acid-terminated reaction products obtainable by reaction of the diisocyanates or dicarboxylic acids mentioned with diols in molar ratios of about 2: 1 can also be used. Because of their excellent defoamer performance, the block copolymers which can be derived from 2,4- or 2,6-tolylene diisocyanate are particularly preferred.
- Hydroxyl group-terminated compounds of the abovementioned type can also be reacted in a manner known in principle with monocarboxylic acids having 1 to 22 carbon atoms, in particular fatty acids with 12 to 20 carbon atoms, or their reactive derivatives, for example acid chlorides, anhydrides or methyl or ethyl esters and thus at least partially closed end groups.
- monocarboxylic acids having 1 to 22 carbon atoms, in particular fatty acids with 12 to 20 carbon atoms, or their reactive derivatives, for example acid chlorides, anhydrides or methyl or ethyl esters and thus at least partially closed end groups.
- the defoamer performance of such compounds is also excellent.
- the polymers to be used according to the invention are preferably prepared by reacting polypropylene glycols and, if appropriate, polyethylene glycols with difunctional isocyanates or difunctional carboxylic acids or reactive carboxylic acid derivatives, for example anhydrides or acid chlorides, in the abovementioned molar ratios, if desired with the addition of acidic catalysts Temperatures from 20 ° C to 140 ° C and, if desired, in a solvent which is inert under the reaction conditions. It is also possible to use the lower alkyl esters of carboxylic acids, especially their methyl or ethyl esters, under preferably acidic transesterification conditions.
- block copolymers to be used according to the invention which contain both polyethylene and polypropylene groups
- the production of certain polyglycol esters is described, for example, in US Pat. No. 2,950,310.
- reaction with monocarboxylic acids or their reactive derivatives can then take place, so that end-capped products are formed.
- the use according to the invention can be achieved in that a block copolymer described above, in a washing or cleaning liquor in bulk without this addition, which tends to undesirably strong foaming, dissolved in a preferably water-miscible organic solvent or in aqueous suspension is added.
- the block copolymers to be used according to the invention are preferably in In the form of granular, free-flowing foam regulators which contain the block copolymers mentioned.
- the phosphate-free carrier material for converting the block copolymers to be used according to the invention into a free-flowing foam regulating agent which is particularly suitable for use in powdered detergents and cleaning agents, has a granular structure and consists of water-soluble or water-dispersible compounds, primarily of inorganic and optionally additional organic salts, which are suitable for use in detergents and cleaning agents.
- organic carrier materials such as starch or cellulose and customary neutral salts, for example alkali sulfates or alkali chlorides, in particular customary washing alkalis, for example alkali carbonates or silicates, inorganic builder substances, for example aluminosilicates, layered silicates, for example bentonites, and inorganic bleaching agents Oxygen-based, for example alkali perborates or percarbonates, the latter bleaching agents in particular being preferred in one embodiment of the foam regulating agent according to the invention as carrier material or constituent of the carrier material.
- customary neutral salts for example alkali sulfates or alkali chlorides
- customary washing alkalis for example alkali carbonates or silicates
- inorganic builder substances for example aluminosilicates, layered silicates, for example bentonites
- inorganic bleaching agents Oxygen-based, for example alkali perborates or percarbonates, the latter bleaching agents in particular being preferred in one embodiment
- the carrier material preferably contains both alkali carbonate and alkali silicate.
- the carrier material preferably contains 1% by weight to 50% by weight of alkali carbonate, up to 70% by weight of alkali sulfate, up to 50% by weight of alkali alumosilicate and 10% by weight to 50% by weight of alkali silicate , however, can additionally contain other water-soluble or water-insoluble, water-dispersible substances.
- the materials which can additionally be used include, in particular, alkali metal chlorides and layered silicates, for example bentonite.
- the alkali silicate is preferably a compound with a molar ratio of alkali oxide to SiO 2 of 1: 1.5 to 1: 3.5.
- the use of such silicates results in particularly good grain properties, in particular high abrasion stability and nevertheless high dissolution rate in water.
- the carrier material for the Foam control agents useful according to the invention include aluminosilicates, in particular the zeolites, for example zeolite NaA and NaX.
- Examples of possible organic components of the carrier material are starch, acetates, tartrates, citrates, succinates, carboxymethyl succinates and the alkali metal salts of aminopolycarboxylic acids, such as NTA or EDTA, hydroxyalkane phosphonates and aminoalkane polyphosphonates, such as 1-hydroxyethane, 1,1-diphosphonate, ethylenediaminophonate and diethylene triamine pentamethylene phosphonate.
- Water-soluble salts of polymeric or copolymeric carboxylic acids for example polyacrylates and copolymers of acrylic acid and maleic acid, can also be used.
- Preferred alkali metal in the alkali salts mentioned is sodium in all cases.
- the carrier material can also contain film-forming polymers as organic component, for example polyethylene glycols, polyvinyl alcohols, polyvinylpyrrolidones and cellulose derivatives.
- Usable cellulose ethers are, in particular, alkali carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose and so-called cellulose mixed ethers, such as, for example, methyl hydroxyethyl cellulose and methyl hydroxypropyl cellulose, and mixtures thereof.
- the carboxymethyl cellulose usually having a degree of substitution of 0.5 to 0.8 carboxymethyl groups per anhydroglucose unit and the methyl cellulose having a degree of substitution of 1.2 to 2 methyl groups per anhydroglucose unit.
- the mixtures preferably contain alkali carboxymethyl cellulose and nonionic cellulose ethers in weight ratios from 80:20 to 40:60, in particular from 75:25 to 50:50.
- Such cellulose ether mixtures can be used in solid form or as aqueous solutions, which can be pre-swollen in the usual way.
- the foam regulating agents according to the invention can, preferably not more than 10 wt .-% and in particular from 0.5 wt .-% to 3.5 wt .-%, surfactant.
- Surfactants are to be understood as meaning surface-active compounds with a hydrophobic part of the molecule and hydrophilic anionic, ampholytic, zwitterionic, cationic and nonionic groups which, in aqueous solution or dispersion, have a cleaning or emulsifying unfold its effect.
- Surfactants are normally the foam-causing components of washing and cleaning liquors. It is all the more surprising that these foaming constituents can be contained in the foam regulating agents according to the invention without the effectiveness of the agents being impaired.
- the hydrophobic molecular part of surfactants generally consists of a hydrocarbon radical or a substituted hydrocarbon radical or a polyglycol ether radical which is poorly soluble in water, for example a polypropylene glycol or polybutylene glycol ether radical.
- the foam regulating agents according to the invention preferably contain synthetic anionic surfactants of the sulfate or sulfonate type, in particular alkylbenzenesulfonates and / or alkyl sulfates, because, in the course of the production of the foam regulating agents described below, via aqueous dispersions of the block copolymers, the block copolymers are dispersed particularly well enable.
- a foam regulating agent according to the invention can be produced by applying the liquid block copolymer, optionally heated to room temperature, to the granular carrier material, for example by successive admixing, in particular as a spray, to the carrier material.
- the carrier grain which can be produced in the usual way by granulation or by spray-drying an aqueous slurry of the carrier materials, is kept in motion by mixing elements or by fluidization in order to ensure uniform loading of the carrier material.
- the spray mixers used for this can be operated continuously or discontinuously.
- an aqueous dispersion of the block copolyzer to be used according to the invention, which preferably contains a film-forming polymer and / or surfactant listed above as a dispersing aid.
- a dispersing aid Depending on the water content of the dispersion and the water binding capacity of the carrier This procedure can make the subsequent drying of the resulting foam regulating agent necessary, for example by means of conventional fluidized bed dryers.
- the foam regulating agent is prepared by dissolving or slurrying the carrier materials in water, dispersing the block copolymer to be used according to the invention therein and then spray-drying this slurry.
- a water-soluble dispersion stabilizer in the form of a surfactant and / or polymers swellable in water is preferably added to the dispersion since the block copolymers to be used according to the invention are generally insoluble or only slightly soluble in the aqueous slurry.
- water-swellable polymers examples include the cellulose ethers mentioned, homo- and copolymers of unsaturated carboxylic acids, such as acrylic acid, maleic acid and copolyzable vinyl compounds, such as vinyl ether, acrylamide and ethylene.
- the addition of such compounds which act as dispersion stabilizers in the aqueous slurry is preferably not more than 5% by weight, in particular 1% by weight to 3% by weight, based on the foam regulating agent formed.
- the water content of the slurry can be from 30% by weight to 60% by weight, depending on the type or solubility of the carrier material.
- the spray drying of the dispersion can be carried out in a known manner in principle in systems provided for this purpose, so-called spray towers, using hot drying gases conducted in cocurrent or countercurrent.
- a foam regulating agent according to the invention preferably consists of particles with particle sizes not more than 2 mm, in particular from 0.1 mm to 1.6 mm. It preferably has a bulk density in the range from 300 grams per liter to 1100 grams per liter, in particular from 450 grams per liter to 900 grams per liter. It is preferably used for the production of powdered detergents or cleaning agents, a further advantage of the foam regulating agents according to the invention being their low use amount and good defoamer performance. It is thus possible to defoam the performance of conventional silicone defoamers both in machine low-temperature washing at 30 ° C. to 60 ° C. and in high-temperature washing at about 90 ° C. with less than the same weight To achieve amounts, based on the active substance, of the foam regulating agents according to the invention on the basis of the block copolymers to be used according to the invention.
- the block copolymer esters El and E2 were obtained as highly viscous, colorless liquids.
- polyethylene glycols PEG, the number given means the molecular weight
- polypropylene glycols PPG, the number given means the molecular weight
- diisocyanates given in the following tables 2 to 5 and diisocyanates were converted to the block copolymer urethanes U1 to U20.
- the parts by weight used for the polyglycols are given in the tables; for the diisocyanate component, this is the equivalent weight ratio with respect to the alcohol components (ratio 0H: NC0).
- the defoamer performance of block copolymers according to Example 1 was determined using the free-fall cycle method.
- a wash liquor (500 ml) pumped in a circle and heated to 60 ° C. failed with 4 g of a defoamer-free universal detergent (containing 6% by weight alkylbenzenesulfonate, 2% by weight alkyl sulfate, 3.5% by weight fatty alkyl polyethoxylate) , 1.5% by weight of soap, 20% by weight of zeolite Na-A, 10% by weight of sodium carbonate, 3% by weight of sodium silicate, 3.5% by weight of Na polycarboxylate, 20% by weight of sodium ⁇ perborate, 1.5% by weight TAED, 0.3% by weight protease, remainder on 100% by weight sodium sulfate and water) and the block copolymer concentration given in Table 6 below a distance of 40 cm .
- Table 6 shows the times (in seconds) until 1000 ml of foam build up. The longer these times are the better the foam-regulating effect of the block copolymer. It was largely irrelevant whether the block copolymers were absorbed in bulk or on carrier materials (sodium carbonate, zeolite Na-A, starch, partially hydrolyzed starch and a sodium sulfate / sodium carbonate / sodium silicate / carboxymethyl cellulose / methyl cellulose combination were used) .
- Table 7 shows the amounts of foam (in ml) formed in the free-fall cycle method described above as a function of time. Block copolymers in concentrations of 0.5% by weight were used in the liquor. Table 7: Schaumrnen ⁇ en Tmll
- Granular foam control agents were obtained by simply mixing in each case 1% by weight of part of the block copolymers E1, E2 and U1 to U20 with 10% by weight of powdered sodium sulfate. This was incorporated into universal detergent formulations free of foam inhibitors and, under conditions of use, in a household washing machine at concentrations of 1% by weight to 4% by weight, based on total detergent, had defoamer performances which were comparable to those of a commercially available silicone foam inhibitor (based on weight) used on active substance) in any case.
- the amount of foam formed was read off after the times indicated below (switch off the pump, the foam height is the distance between the foam surface and the liquid surface).
- the value for the foam regulator-free agent was set as 1. After a pumping and spraying time of 30 minutes, the foam height when using the foam regulator-containing agent was 0.5 units, after 3.5 hours 0.4 units.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94904187A EP0678117B1 (de) | 1993-01-07 | 1993-12-27 | Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln |
JP6516413A JPH08512333A (ja) | 1993-01-07 | 1993-12-27 | 洗浄剤または清浄剤の泡調節剤としてのブロックコポリマー |
DE59303602T DE59303602D1 (de) | 1993-01-07 | 1993-12-27 | Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4300087.8 | 1993-01-07 | ||
DE4300087A DE4300087A1 (de) | 1993-01-07 | 1993-01-07 | Blockcopolymere als Schaumregulatoren in Wasch- oder Reinigungsmitteln |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994016044A1 true WO1994016044A1 (de) | 1994-07-21 |
Family
ID=6477741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1993/003697 WO1994016044A1 (de) | 1993-01-07 | 1993-12-27 | Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0678117B1 (de) |
JP (1) | JPH08512333A (de) |
AT (1) | ATE141944T1 (de) |
DE (2) | DE4300087A1 (de) |
ES (1) | ES2091132T3 (de) |
WO (1) | WO1994016044A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5632860A (en) * | 1995-07-05 | 1997-05-27 | Betzdearborn Inc. | Method of controlling foam in aqueous systems |
WO2005021613A1 (de) * | 2003-08-27 | 2005-03-10 | Basf Aktiengesellschaft | Schaumregulierungsmittel auf einer basis von kationischen urethan-oligomeren |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI555800B (zh) * | 2011-04-04 | 2016-11-01 | 拜耳材料科學股份有限公司 | 聚胺基甲酸酯脲分散體 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069577B (de) * | 1959-11-26 | Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk | Entschäumer auf Urethanbasis | |
GB1465700A (en) * | 1974-11-21 | 1977-02-23 | Ici Ltd | Surface active compositions |
JPS57119807A (en) * | 1981-01-19 | 1982-07-26 | Mitsubishi Petrochem Co Ltd | Antifoaming agent |
EP0207002A2 (de) * | 1985-06-27 | 1986-12-30 | Ciba-Geigy Ag | Entschäumungsmittel für wässrige Systeme und ihre Verwendung |
-
1993
- 1993-01-07 DE DE4300087A patent/DE4300087A1/de not_active Withdrawn
- 1993-12-27 JP JP6516413A patent/JPH08512333A/ja active Pending
- 1993-12-27 WO PCT/EP1993/003697 patent/WO1994016044A1/de active IP Right Grant
- 1993-12-27 EP EP94904187A patent/EP0678117B1/de not_active Expired - Lifetime
- 1993-12-27 AT AT94904187T patent/ATE141944T1/de not_active IP Right Cessation
- 1993-12-27 ES ES94904187T patent/ES2091132T3/es not_active Expired - Lifetime
- 1993-12-27 DE DE59303602T patent/DE59303602D1/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1069577B (de) * | 1959-11-26 | Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk | Entschäumer auf Urethanbasis | |
GB1465700A (en) * | 1974-11-21 | 1977-02-23 | Ici Ltd | Surface active compositions |
JPS57119807A (en) * | 1981-01-19 | 1982-07-26 | Mitsubishi Petrochem Co Ltd | Antifoaming agent |
EP0207002A2 (de) * | 1985-06-27 | 1986-12-30 | Ciba-Geigy Ag | Entschäumungsmittel für wässrige Systeme und ihre Verwendung |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Derwent World Patents Index; AN 82-73467E * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5632860A (en) * | 1995-07-05 | 1997-05-27 | Betzdearborn Inc. | Method of controlling foam in aqueous systems |
WO2005021613A1 (de) * | 2003-08-27 | 2005-03-10 | Basf Aktiengesellschaft | Schaumregulierungsmittel auf einer basis von kationischen urethan-oligomeren |
US7807725B2 (en) | 2003-08-27 | 2010-10-05 | Basf Aktiengesellschaft | Foam regulating agent based on cationic urethane oligomers |
Also Published As
Publication number | Publication date |
---|---|
EP0678117B1 (de) | 1996-08-28 |
ES2091132T3 (es) | 1996-10-16 |
DE59303602D1 (de) | 1996-10-02 |
EP0678117A1 (de) | 1995-10-25 |
JPH08512333A (ja) | 1996-12-24 |
ATE141944T1 (de) | 1996-09-15 |
DE4300087A1 (de) | 1994-07-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0759947B1 (de) | Schmutzablösevermögende polyester | |
EP3049508B1 (de) | Cellulosecarbamate als schmutzablösevermögende wirkstoffe | |
EP3810742B1 (de) | Xylosecarbamate als schmutzablösevermögende wirkstoffe | |
WO1996016150A1 (de) | Schmutzabweisendes waschmittel mit bestimmter tensidkombination | |
EP3280788B1 (de) | Wasch- und reinigungsmittel mit polymerem wirkstoff | |
EP1438346A1 (de) | Baumwollaktive schmutzablösevermögende polymere auf urethan-basis | |
WO2006131197A1 (de) | Verstärkung der reinigungsleistung von waschmittel durch polymer | |
WO1994016044A1 (de) | Blockcopolymere als schaumregulatoren in wasch- oder reinigungsmitteln | |
WO1998050509A1 (de) | Verfahren zur herstellung von lagerstabilen schmutzablösevermögende polymere (soil release polymere, srp) enthaltenden granulaten und ihre verwendung zur herstellung fester wasch- und reinigungsmittel | |
EP0719167B1 (de) | Estergruppenhaltige blockpolymere als entschäumer für wässrige systeme | |
WO2017009160A1 (de) | Vermeidung von textilknittern | |
WO2001007551A1 (de) | Verwendung von polyvinylalkoholen als schmutzablösevermögende waschmittelzusätze | |
EP3227421B1 (de) | Wasch- und reinigungsmittel mit polymerem wirkstoff | |
DE19649288A1 (de) | Baumwollaktive schmutzablösevermögende Polymere | |
WO2012010531A1 (de) | Verhinderung von textilschäden beim waschen | |
EP0719168B1 (de) | Estergruppenhaltige blockpolymere als entschäumer für wässrige systeme | |
DE4417686A1 (de) | Endgruppenmodifizierte schmutzablösevermögende Polyester | |
DE10152308A1 (de) | Baumwollaktive schmutzablösevermögende Polymere auf Urethan-Basis | |
EP2922943B1 (de) | Die primärwaschkraft verbessernde polyalkoxylierte polyamine | |
EP3227423B1 (de) | Wasch- und reinigungsmittel mit polymerem wirkstoff | |
EP0850292B1 (de) | Farbübertragungsinhibierendes waschmittel | |
DE4123195A1 (de) | Waschaktive zubereitung mit verzoegertem aufloeseverhalten und verfahren zu ihrer herstellung | |
DE10151287A1 (de) | Baumwollaktive schmutzablösevermögende Polymere auf Urethan-Basis | |
DE19502181A1 (de) | Endgruppenmodifizierte schmutzablösevermögende Polyester | |
DE10112136A1 (de) | Verhinderung von Textilschäden beim Waschen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1994904187 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: US Ref document number: 1995 481354 Date of ref document: 19950727 Kind code of ref document: A Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1994904187 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1994904187 Country of ref document: EP |