ATE140955T1 - RE-RELEASABLE COATED ACTIVE SUBSTRATES - Google Patents

RE-RELEASABLE COATED ACTIVE SUBSTRATES

Info

Publication number
ATE140955T1
ATE140955T1 AT93910229T AT93910229T ATE140955T1 AT E140955 T1 ATE140955 T1 AT E140955T1 AT 93910229 T AT93910229 T AT 93910229T AT 93910229 T AT93910229 T AT 93910229T AT E140955 T1 ATE140955 T1 AT E140955T1
Authority
AT
Austria
Prior art keywords
coating
substrate
bleach
aqueous medium
encapsulated
Prior art date
Application number
AT93910229T
Other languages
German (de)
Inventor
Barry Neil Love
Colin Young
Original Assignee
Warwick Int Group
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
Priority claimed from GB929211373A external-priority patent/GB9211373D0/en
Priority claimed from GB929213342A external-priority patent/GB9213342D0/en
Application filed by Warwick Int Group filed Critical Warwick Int Group
Application granted granted Critical
Publication of ATE140955T1 publication Critical patent/ATE140955T1/en

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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3935—Bleach activators or bleach catalysts granulated, coated or protected
    • 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
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • C11D3/3905—Bleach activators or bleach catalysts
    • C11D3/3907—Organic compounds
    • C11D3/3917—Nitrogen-containing compounds
    • C11D3/392—Heterocyclic compounds, e.g. cyclic imides or lactames
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3942—Inorganic per-compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Paper (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Medicinal Preparation (AREA)
  • Lubricants (AREA)
  • Materials For Medical Uses (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)

Abstract

This invention relates to an encapsulated active substrate comprising a bleach and/or a bleach activator releasably encapsulated in a coating of at least one metal salt of an inorganic acid, said salt being soluble in an aqueous medium such that upon contacting the encapsulated substrate with the aqueous medium, the active substrate is released into said aqueous medium, characterized in that the substrate has a preliminary coating of an alkali metal carbonate or a bicarbonate and a final encapsulating coating of a metal salt of an inorganic acid. The coating technique controls the activity of the bleach or bleach activator and minimises dye damage or pinholing of the fabrics washed.
AT93910229T 1992-05-29 1993-05-19 RE-RELEASABLE COATED ACTIVE SUBSTRATES ATE140955T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929211373A GB9211373D0 (en) 1992-05-29 1992-05-29 Releasably encapsulated active substrates
GB929213342A GB9213342D0 (en) 1992-06-24 1992-06-24 Releasably encapsulated active substrates

Publications (1)

Publication Number Publication Date
ATE140955T1 true ATE140955T1 (en) 1996-08-15

Family

ID=26300949

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93910229T ATE140955T1 (en) 1992-05-29 1993-05-19 RE-RELEASABLE COATED ACTIVE SUBSTRATES

Country Status (8)

Country Link
EP (1) EP0643763B1 (en)
JP (1) JPH10500433A (en)
AT (1) ATE140955T1 (en)
AU (1) AU4081693A (en)
CA (1) CA2136833A1 (en)
DE (1) DE69303900T2 (en)
ES (1) ES2090997T3 (en)
WO (1) WO1993024604A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136211B4 (en) * 2001-07-25 2007-05-24 Henkel Kgaa Process for the preparation of particulate detergents or cleaners
WO2004050810A2 (en) * 2002-12-02 2004-06-17 Diamond Chemical Company, Inc. New class of laundry compositions
PL2292725T5 (en) 2009-08-13 2022-11-07 The Procter And Gamble Company Method of laundering fabrics at low temperature
GB0918914D0 (en) 2009-10-28 2009-12-16 Revolymer Ltd Composite
GB201106409D0 (en) 2011-04-15 2011-06-01 Revolymer Ltd Novel composite
GB201106391D0 (en) 2011-04-15 2011-06-01 Reckitt & Colman Overseas Novel composite
GB201106408D0 (en) 2011-04-15 2011-06-01 Revolymer Ltd Novel composite
GB201106377D0 (en) 2011-04-15 2011-06-01 Reckitt & Colman Overseas Novel composite
JP7312739B2 (en) * 2017-07-31 2023-07-21 ダウ グローバル テクノロジーズ エルエルシー Additive composition and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494787A (en) * 1966-12-19 1970-02-10 Ppg Industries Inc Encapsulated perphthalic acid compositions and method of making same
US4105827A (en) * 1973-04-20 1978-08-08 Interox Particulate peroxygen compounds coated with sodium sesquicarbonate or Na2 SO4 mNa2 CO3
DE3504628A1 (en) * 1985-02-11 1986-08-14 Henkel KGaA, 4000 Düsseldorf METHOD FOR PRODUCING GRANULATE GRANULATE
US4657784A (en) * 1986-03-10 1987-04-14 Ecolab Inc. Process for encapsulating particles with at least two coating layers having different melting points
GB9023000D0 (en) * 1990-10-23 1990-12-05 Bp Chem Int Ltd Barrier coatings

Also Published As

Publication number Publication date
AU4081693A (en) 1993-12-30
CA2136833A1 (en) 1993-12-09
JPH10500433A (en) 1998-01-13
ES2090997T3 (en) 1996-10-16
DE69303900D1 (en) 1996-09-05
DE69303900T2 (en) 1996-11-28
EP0643763A1 (en) 1995-03-22
EP0643763B1 (en) 1996-07-31
WO1993024604A1 (en) 1993-12-09

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties