EP0109247B1 - Hydrocarbon anti-foam granules - Google Patents

Hydrocarbon anti-foam granules Download PDF

Info

Publication number
EP0109247B1
EP0109247B1 EP83306784A EP83306784A EP0109247B1 EP 0109247 B1 EP0109247 B1 EP 0109247B1 EP 83306784 A EP83306784 A EP 83306784A EP 83306784 A EP83306784 A EP 83306784A EP 0109247 B1 EP0109247 B1 EP 0109247B1
Authority
EP
European Patent Office
Prior art keywords
liquid
hydrocarbon
detergent composition
granules
mixture
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
EP83306784A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0109247A3 (en
EP0109247A2 (en
Inventor
Tan Tai Ho
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10534152&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0109247(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to AT83306784T priority Critical patent/ATE32346T1/de
Publication of EP0109247A2 publication Critical patent/EP0109247A2/en
Publication of EP0109247A3 publication Critical patent/EP0109247A3/en
Application granted granted Critical
Publication of EP0109247B1 publication Critical patent/EP0109247B1/en
Expired legal-status Critical Current

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
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • 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
    • C11D3/18—Hydrocarbons

Definitions

  • This invention relates to anti-foam granules for use in detergent compositions and to a process for their preparation.
  • compositions contain a special mixture of liquid hydrocarbon with either a solid hydrocarbon or a fatty acid ester and a hydrophobic silica.
  • the anti-foam system consists of:
  • the present invention provides a detergent composition containing an anionic surfactant and/or a nonionic surfactant and anti-foam granules comprising hydrophobic silica and a mixture of at least one hydrocarbon which is liquid at room temperature and at atmospheric pressure and at least one solid hydrocarbon with a melting point in the range from 35°C to 110°C characterised in that the liquid hydrocarbon component constitutes less than 30% by weight of the total hydrocarbon and in that the silica and the mixture of liquid and solid hydrocarbons are sorbed on a core of a material producing a mechanical action on addition to water.
  • the liquid hydrocarbon component in a detergent composition according to the present invention comprises from 15-25% by weight of the total hydrocarbon.
  • the solid hydrocarbon component is preferably a petroleum jelly or a paraffin wax having a drop-melting point of 50°C or higher.
  • a second aspect of the invention provides two alternative processes for manufacturing granules for use in the compositions.
  • the invention provides first a process for the production of anti-foam granules which comprises:
  • compositions of the invention will contain both a nonionic surfactant and an anionic surfactant.
  • compositions which contain both types of surfactant produce lower amounts of foam than those which contain only anionic surfactant and consequently lower amounts of anti-foam granule will be required to control the foam.
  • Typical anionic surfactants which may be present in amounts of from about 2 to 35% by weight of the finished compositions are sodium alkylbenzene sulphonates, preferably the C l6- C l6 alkyl compounds, sodium primary and secondary alkyl sulphates, preferably the C, o -C 2z alkyl sulphates, sodium olefine sulphonates, preferably the C lo -C, 8 sulphonates and sodium alkane sulphonates.
  • Soaps of fatty acids may also be present, preferably the sodium and potassium salts of C lO -C 22 fatty acids, both saturated and unsaturated.
  • soap is the sole anionic surfactant it may be present in an amount up to about 65% by weight of the finished composition, down to about 0.2% by weight when other anionic surfactants are present.
  • Typical soaps which can be used are those formed from coconut oil, tallow, hydrogenated tallow, hydrogenated rapeseed oil and natural oils containing high proportions of oleic acid such as sunflower oil.
  • Typical nonionic surfactants are ethoxylated primary and secondary alcohols of from 8 to 25 carbon atoms containing from 3 to 25 moles of ethylene oxide per mole of alcohol. These materials may generally be present in an amount of from 1 to 25% by weight, based on the weight of the finished composition.
  • Typical detergency builders which can be used are the water-soluble phosphates, carbonates, percarbonates and aluminosilicates, particularly the sodium and potassium salts of these compounds.
  • Organic builders may also be used, examples being sodium carboxymethyloxysuccinate, sodium citrate, sodium polyacrylates and sodium nitrilotriacetate. Any of these compounds, or any other builder compound, in any suitable mixture, may be used in amounts of from 5 to 60% by weight of the finished composition.
  • Other components which will normally be present are bleaching agents, corrosion inhibitors, anti-redeposition agents, fluorescers, stabilisers and substantial proportions of water.
  • each powder was subjected to accelerated ageing by storing it in an E3 unlaminated cardboard carton for 2 or 4 weeks at 37°C and 60% relative humidity.
  • the anti-foam granules for incorporation into powders were prepared by forming a molten mixture of the liquid hydrocarbon, the solid hydrocarbon and silica and spraying the mixture onto the sorbent in a pan granulator.

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)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP83306784A 1982-11-10 1983-11-08 Hydrocarbon anti-foam granules Expired EP0109247B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83306784T ATE32346T1 (de) 1982-11-10 1983-11-08 Anti-schaum-kohlenwasserstoff-granulate.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8232050 1982-11-10
GB8232050 1982-11-10

Publications (3)

Publication Number Publication Date
EP0109247A2 EP0109247A2 (en) 1984-05-23
EP0109247A3 EP0109247A3 (en) 1985-04-03
EP0109247B1 true EP0109247B1 (en) 1988-02-03

Family

ID=10534152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83306784A Expired EP0109247B1 (en) 1982-11-10 1983-11-08 Hydrocarbon anti-foam granules

Country Status (8)

Country Link
EP (1) EP0109247B1 (pt)
AT (1) ATE32346T1 (pt)
AU (1) AU554566B2 (pt)
DE (1) DE3375580D1 (pt)
GR (1) GR79717B (pt)
NO (1) NO834071L (pt)
PT (1) PT77642B (pt)
ZA (1) ZA838239B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169308B (en) * 1985-01-07 1988-11-02 Kao Corp Method of removing mold
GB8513074D0 (en) * 1985-05-23 1985-06-26 Unilever Plc Antifoam ingredient
GB8521956D0 (en) * 1985-09-04 1985-10-09 Unilever Plc Antifoam ingredient
GB8619634D0 (en) * 1986-08-12 1986-09-24 Unilever Plc Antifoam ingredient
GB8811954D0 (en) * 1988-05-20 1988-06-22 Unilever Plc Antifoam ingredients
WO2005005588A2 (en) * 2003-07-15 2005-01-20 A.S.T. Kimya Ve Teknoloji Sanayi Ticaret Limited Sirketi An anti-foam composition comprising puffed
WO2006106384A1 (en) * 2005-04-07 2006-10-12 A.S.T. Kimya Ve Teknoloji Sanayi Ticaret Limited Sirketi An anti-foam agent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1492939A (en) * 1974-03-11 1977-11-23 Procter & Gamble Ltd Controlled-sudsing detergent compositions
DE2857155C3 (de) * 1977-06-23 1996-06-13 Procter & Gamble Detergensmittel mit Schaumregulierungssystem
EP0008830A1 (en) * 1978-09-09 1980-03-19 THE PROCTER & GAMBLE COMPANY Suds-suppressing compositions and detergents containing them
ATE20358T1 (de) * 1981-07-31 1986-06-15 Unilever Nv Schaumregulierungsmittel und diese enthaltende detergenszusammensetzungen.

Also Published As

Publication number Publication date
EP0109247A3 (en) 1985-04-03
GR79717B (pt) 1984-10-31
AU554566B2 (en) 1986-08-28
DE3375580D1 (en) 1988-03-10
PT77642A (en) 1983-12-01
PT77642B (en) 1986-05-12
ZA838239B (en) 1985-06-26
AU2103183A (en) 1984-05-17
NO834071L (no) 1984-05-11
EP0109247A2 (en) 1984-05-23
ATE32346T1 (de) 1988-02-15

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