EP0075433B1 - Antifoam compositions - Google Patents

Antifoam compositions Download PDF

Info

Publication number
EP0075433B1
EP0075433B1 EP82304843A EP82304843A EP0075433B1 EP 0075433 B1 EP0075433 B1 EP 0075433B1 EP 82304843 A EP82304843 A EP 82304843A EP 82304843 A EP82304843 A EP 82304843A EP 0075433 B1 EP0075433 B1 EP 0075433B1
Authority
EP
European Patent Office
Prior art keywords
composition
foam
liquid
compositions
polysiloxane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82304843A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0075433A3 (en
EP0075433A2 (en
Inventor
Peter Robert Garret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT82304843T priority Critical patent/ATE20085T1/de
Publication of EP0075433A2 publication Critical patent/EP0075433A2/en
Publication of EP0075433A3 publication Critical patent/EP0075433A3/en
Application granted granted Critical
Publication of EP0075433B1 publication Critical patent/EP0075433B1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • 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
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones

Definitions

  • This invention relates to anti-foam compositions.
  • Anti-foam compositions are widely used in industry, especially in the detergents, textile and paper industries.
  • the chemical nature of the anti-foam materials which have been suggested in the past is very diverse, but this invention is concerned with certain mixtures of polysiloxanes with defined particulate solids.
  • an anti-foam composition comprising the combination of a hydrophobic liquid and a particulate solid, the hydrophobic liquid being a polysiloxane and the particulate solid comprising an a,w-dialkylamide alkane.
  • the present invention provides a further choice of anti-foam compositions which are useful for a variety of applications, but which are especially useful for producing low foaming soap and detergent compositions.
  • a detergent composition containing an anti-foam composition comprising the combination of a hydrophobic liquid and a particulate solid, wherein the hydrophobic liquid is a polysiloxane and the particulate solid comprises an a,w-dialkylamide alkane.
  • the anti-foam composition When the anti-foam composition is incorporated into a fabric washing powder and when the polysiloxane is mobile, then it will be desirable to protect the anti-foam composition, otherwise the mobile liquid will migrate away from the particulate solid, leading to deactivation of the foam-inhibiting properties. Protection techniques which are known in the detergents art are appropriate here.
  • the anti-foam composition can be encapsulated in a water-soluble or water-dispersible medium such as gelatin or polyethylene glycol, or it may be granulated on a spherical or cylindrical core of sucrose or gelatinised starch and subsequently coated with, for example, paraffin wax.
  • the polysiloxanes used in the invention are generally alkyl polysiloxanes. These materials are well known to industrial chemists and are available in a wide range of molecular weights, the higher molecular weight materials, as is usually the case with polymers, tending to be more viscous. Polysiloxanes are available from various suppliers, for example Dow Corning Corporation of Illinois, USA, and Rhone-Poulenc Chemie, France.
  • the anti-foam composition will normally be present in detergent compositions in accordance with the invention in amounts of from 0.1 to 2%, preferably 0:.1 to 1%.
  • compositions are especially effective when incorporated into a liquid detergent and we prefer that it should be applied to liquid detergent compositions of both the structured and unstructured types.
  • the usual detergent composition components can be incorporated provided that they have no adverse reaction with the components of the anti-foam composition.
  • anionic surfactants such as alkylbenzene sulphonates, primary and secondary alkyl sulphates, secondary alkane sulphonates, soaps and olefine sulphonates can be used.
  • Nonionic surfactants either alone or in combination with anionic surfactants can also be used, the preferred nonionic surfactants being C 7 to C 24 primary or secondary alcohols ethoxylated with from 1 to 25 moles of ethylene oxide per mole of alcohol. Typical amounts of surfactant are from 3 to 25% by weight when only one species is present, and from 1 to 16% by weight when more than one is present.
  • Builders may be present in amounts of from 5 to 50% by weight.
  • Typical of the inorganic builders are sodium tripolyphosphate, sodium pyrophosphate and sodium orthophosphate, sodium carbonate and the crystalline and amorphous forms of aluminosilicates.
  • Organic builders such as sodium nitrilotriacetate, sodium citrate, sodium carboxymethyloxysuccinate, and the host of other materials have been suggested as phosphate replacers are also appropriate.
  • sodium silicate as a corrosion inhibitor and powder structurant
  • oxygen bleaches such as sodium perborate and sodium percarbonate
  • bleach precursors such as tetraacetylethylene diamine, fluorescers, antiredeposition agents and antiashing agents
  • suds- suppressing agents other than the anti-foam compositions of this invention, and moisture.
  • compositions in powdered (granular) form although some are also suitable for incorporation into liquids.
  • optional components particularly appropriate to this form include electrolytes, hydrotropes, opacifiers, stabilising polymers, organic solvents and colourants.
  • the anti-foam composition will contain from 1 to 40% by weight of the particulate solid.
  • a structured liquid washing composition having the following formulation was prepared.
  • the pH of the composition was adjusted to 9.8.
  • compositions and two similar ones in which 0.1 % and 0.2% by weight of the water were replaced, respectively with 0.1% and 0.2% by weight of a 1:9 mixture of methylene distearamide and a liquid polysiloxane having a viscosity of 1000 mm 2 s-' were subjected to test in the following manner.
  • a liquid detergent composition stabilised with polyacrylic acid was prepared to the following formulation:
  • the pH of the composition was adjusted to 8.5.
  • compositions and two similar ones in which 1.0% and 2.0% by weight of the water were replaced with 1.0% and 2.0% by weight respectively of a 1:9 mixture of ethylene distearamide and a polysiloxane having an average viscosity of 1000 to 60 000 mm 2 s -1 were subjected to test in the following manner.
  • an antifoam in accordance with the invention is effective in the defined liquid composition, although as the inherent foam generating power of the surfactants used in this instance are greater than in Example 1, somewhat larger amounts of anti-foam are required.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Silicon Polymers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP82304843A 1981-09-16 1982-09-14 Antifoam compositions Expired EP0075433B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304843T ATE20085T1 (de) 1981-09-16 1982-09-14 Anti-schaumzusammensetzungen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8127967 1981-09-16
GB8127967 1981-09-16

Publications (3)

Publication Number Publication Date
EP0075433A2 EP0075433A2 (en) 1983-03-30
EP0075433A3 EP0075433A3 (en) 1983-11-02
EP0075433B1 true EP0075433B1 (en) 1986-05-28

Family

ID=10524540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304843A Expired EP0075433B1 (en) 1981-09-16 1982-09-14 Antifoam compositions

Country Status (7)

Country Link
EP (1) EP0075433B1 (enrdf_load_stackoverflow)
JP (1) JPS5861808A (enrdf_load_stackoverflow)
AT (1) ATE20085T1 (enrdf_load_stackoverflow)
AU (1) AU547364B2 (enrdf_load_stackoverflow)
BR (1) BR8205363A (enrdf_load_stackoverflow)
DE (1) DE3271384D1 (enrdf_load_stackoverflow)
ZA (1) ZA826807B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7316995B2 (en) 2003-02-10 2008-01-08 Henkel Kommanditgesellschaft Auf Aktien Detergents or cleaning agents comprising a water-soluble building block system and a cellulose derivative with dirt dissolving properties
US7375072B2 (en) 2003-02-10 2008-05-20 Henkel Kommanditgesellschaft Auf Aktien Bleach-containing laundry detergents or cleaning compositions comprising water-soluble builder system and soil release-capable cellulose derivative

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8513074D0 (en) * 1985-05-23 1985-06-26 Unilever Plc Antifoam ingredient
FR2725456B1 (fr) * 1994-10-07 1996-12-27 Rhone Poulenc Chimie Composition solide, granulaire, comprenant un ingredient liquide emprisonne dans une matrice solide, procede de preparation et utilisation dans une composition detergente en poudre
US6200498B1 (en) 1997-08-29 2001-03-13 Henkel Kommanditgesellschaft Auf Aktien Process for producing paraffin-containing foam regulators
GB9816377D0 (en) * 1998-07-29 1998-09-23 Dow Corning Sa Foam control agents
DE102004004722A1 (de) * 2004-01-29 2005-08-18 Basf Ag Verfahren zur Behandlung von Textil
CN112717479A (zh) * 2020-12-29 2021-04-30 新疆水处理工程技术研究中心有限公司 一种聚醚消泡剂及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI54058C (fi) * 1971-09-07 1978-10-10 Nalco Chemical Co Antiskumkomposition foer att hindra skumbildning i vattenhaltiga system
GB1407997A (en) * 1972-08-01 1975-10-01 Procter & Gamble Controlled sudsing detergent compositions
JPS5121415A (ja) * 1974-08-15 1976-02-20 Mitsubishi Electric Corp Denryokusenryohansosochino soshinkairo
GB1571502A (en) * 1976-01-23 1980-07-16 Unilever Ltd Detergent compositions
GB1571501A (en) * 1976-01-23 1980-07-16 Unilever Ltd Detergent compositions
CH636123A5 (de) * 1978-06-07 1983-05-13 Ciba Geigy Ag Verfahren zur herstellung schaumregulierter waschmittel.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7316995B2 (en) 2003-02-10 2008-01-08 Henkel Kommanditgesellschaft Auf Aktien Detergents or cleaning agents comprising a water-soluble building block system and a cellulose derivative with dirt dissolving properties
US7375072B2 (en) 2003-02-10 2008-05-20 Henkel Kommanditgesellschaft Auf Aktien Bleach-containing laundry detergents or cleaning compositions comprising water-soluble builder system and soil release-capable cellulose derivative

Also Published As

Publication number Publication date
ATE20085T1 (de) 1986-06-15
EP0075433A3 (en) 1983-11-02
JPS6249082B2 (enrdf_load_stackoverflow) 1987-10-16
BR8205363A (pt) 1983-08-23
JPS5861808A (ja) 1983-04-13
ZA826807B (en) 1984-04-25
EP0075433A2 (en) 1983-03-30
DE3271384D1 (en) 1986-07-03
AU547364B2 (en) 1985-10-17
AU8834682A (en) 1983-03-24

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