WO2000072890A1 - Aqueous odor absorbing composition - Google Patents
Aqueous odor absorbing composition Download PDFInfo
- Publication number
- WO2000072890A1 WO2000072890A1 PCT/CH2000/000280 CH0000280W WO0072890A1 WO 2000072890 A1 WO2000072890 A1 WO 2000072890A1 CH 0000280 W CH0000280 W CH 0000280W WO 0072890 A1 WO0072890 A1 WO 0072890A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acid
- composition
- composition according
- carboxylic
- weight
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
- A61L9/145—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes air-liquid contact processes, e.g. scrubbing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/01—Deodorant compositions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/22—Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning
Definitions
- the present invention relates to an aqueous odor absorbing composition for use in the air and on surfaces except for use directly on humans.
- compositions are used to control odor especially malodor.
- Such compositions comprise perfumes, colognes, active compounds which react with malodor, compounds comprising antibacterial and antifungal agents etc.
- WO96/04937 discloses an odor control composition consisting of an aqueous solution comprising '. ater-soluble cyclocextnns, antimicrobial preservatives and optionally a perfume.
- the cyclodextrins used are alpha-, beta- and gamma- cyclodextrins consisting of glucose units arranged in a donut-shaped ring which forms inclusion complexes with organic molecules e.g. those of malodors.
- Betacyclodextrin is preferred for aiodor-absorption due to its ring size and low cost, however, having a solubility limit of about 1.85 % at room temperature it can only be used in a concentration of up to this limit. For desirable higher concentration betacyclodextrin is derivatised. In such derivatives some of the OH-groups of beta-cyclodextrir. are converted to OR-groups. Tr.e known compositions are used for malodor- absorpt on or -control on textiles by spraying.
- the US-A-5 6?7 854, US-A-5 879 66 and US-A-5 534 165 also descnoe the use of clo ⁇ extnns for odor absorption.
- Beta-cyclodextrin s used in all cases either m a concentration up to ts solubility limit of 1.85% cr, f higher concentration is desired, in a derivatised form.
- the solutions of the above documents comprise also antimicrobial preservatives. The solubility of the latter is improved, if desired, by the addition of small amounts of 0.001 to 0.3% of a chelating agent.
- One object of the present invention is to provide a novel malodor-absorbing composition having a high malodor-control .
- a further object of the present invention is to provide an aqueous malodor-absorbing composition with a low level of olfactive compounds.
- a further object of the present invention is to provide an aqueous malodor absorbing composition with a high concentration of beta-cyclodextrin.
- a further object of the present invention is to provide an aqueous malodor-absorbing composition with a low viscosity and therefore with good spraying quality.
- the present invention refers to an aqueous odor absorbing composition comprising a cyclodextrin and an antimicrobial preservative characterized by
- Carboxylic acids which enhance the solubility of beta- cyclodextrin are carboxylic monoacids and polyacids which may be substituted by one or more hydroxy groups such as glycolic acid, lactic acid, malonic acid, malic acid, glutaric acid, diglycolic acid, succinic acid, citramalic acid, tartaric acid, mucic acid, adipic acid and derivatives thereof.
- the preferred carboxylic acids are hydroxy-carboxylic polyacids such as citric acid, which may be present in an amount of 1 to 8 % preferably in an amount of 6 % per weight of the total composition.
- carboxylic acid compositions according to the present invention may comprise up to 14 % of beta- cylcodextrins, amounts of 1.85 to 10 % give good results and amounts of 1.9 to 6 % are preferred.
- Antimicrobial preservatives are useful for stabilizing the composition of the invention.
- Preferred antimicrobial water soluble preservatives are paraben, phenyl and phenoxy compounds such as phenyl ethanol, phenoxyethanol, organic nitrogen compounds such as imidazolidinyl urea, organic sulfur compounds such as 5-chloro-2-methyl-4-isothiazolin-3-one and 2- methyl-4-isothiazolin-3-one, halogenated compounds such as chlorobutanol, trichlorohydroxy-diphenylether, parachlorometa-cresol, metallic salts such as copper salts and zinc salts e.g. ZnCl 2 .
- the amount of beta-cyclodextrin disolved in the compositions of the present invention alone is sufficient to control malodor in an appreciable extent, however, olfactive compounds can be added to impart pleasant odors to a substrate the composition is applied to. Small amounts of olfactive compounds give surprisingly good results i.e. additionally improving control of malodor and adding a pleasant odor at the use of the compositions of the present invention.
- solubilizing agents for the olfactive compounds such as fragrances
- Such solubilizing agents are nonionic, anionic, cationic and amphoteric surfactants.
- Nonionic surfactants are block copolymers, graft copolymers and homopolymers all being more hydrophylic than hydrophobic.
- Preferred anionic surfactants are alkyl sulfonate.
- Such solubilizing agents may be present in an amount of 0.01 to 5 % preferably 0.01 to 4 %.
- compositions of the invention may be used to control odor especially malodor in the environment (air-freshener) and on any structured surface such as textiles, rugs, walls etc.
- air-freshener any structured surface such as textiles, rugs, walls etc.
- in liquid form they may be sprayed or if containing a thickener and thus having a higher viscosity applied with conventional means such as a paintbrush.
- Perfume is a composition of the following 15 compounds: amylacetate, eucalyptol, dymethyloctenon, Cyclal C, linalool, Aldehyde C12 MNA, viridine, terpineol, benzylacetat, irisone, verdylaceta , phenyl ethyl alcohol, diphenyloxid, prunolide, lilial.
- Perfume 2* is a composition of the following 15 compounds: limonen, tetrahydrolinalool, dihydromyrcenol, anethol, citronellol, alpha-methyl ionone, phenyl ethyl alcohol, lilial, ⁇ -nonalacton, vertofix, ⁇ -decalactone, methyldihydrojasmonale, cumarin, verdyl-propionate, verdylacetat .
- the malodor control or coverage is evaluated directly in the gas phase against tobacco and kitchen malodors by a panel of 4 trained individuals.
- the panelist evaluate systems with different beta-cyclodextrin concentrations of Examples 1-11 at a constant concentration of malodor. The results are shown in Table III. The best malodor control is denoted by 3.
- the malodor control is evaluated in situ by a group of 10 trained individuals.
- the compositions are sprayed on a fabric with tobacco malodor. Fabrics sprayed with the compositions and unsprayed fabrics are compared. The results are shown in Table IV. Table IV
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00925012A EP1100551A1 (en) | 1999-05-31 | 2000-05-19 | Aqueous odor absorbing composition |
JP2000620996A JP2003500173A (en) | 1999-05-31 | 2000-05-19 | Odor absorbing aqueous composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99810470 | 1999-05-31 | ||
EP99810470.7 | 1999-05-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000072890A1 true WO2000072890A1 (en) | 2000-12-07 |
Family
ID=8242855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2000/000280 WO2000072890A1 (en) | 1999-05-31 | 2000-05-19 | Aqueous odor absorbing composition |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1100551A1 (en) |
JP (1) | JP2003500173A (en) |
WO (1) | WO2000072890A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013148716A3 (en) * | 2012-03-30 | 2013-12-27 | Robertet, Inc. | Malodor neutralizing compositions containing acids and alicyclic ketones |
US8741275B2 (en) | 2010-06-04 | 2014-06-03 | Robetet, Inc. | Malodor neutralizing compositions comprising undecylenic acid or citric acid |
US9200241B2 (en) | 2011-01-27 | 2015-12-01 | Robertet, Inc. | Malodor neutralizing compositions comprising bornyl acetate or isobornyl acetate |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4758654B2 (en) * | 2005-01-26 | 2011-08-31 | 株式会社ソフト99コーポレーション | Deodorization method |
JP4782478B2 (en) * | 2005-06-07 | 2011-09-28 | 花王株式会社 | Fragrance composition |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63315200A (en) * | 1987-06-15 | 1988-12-22 | Jiyoriibu:Kk | Deodorizer for cattle feces and urine |
JPH0841780A (en) * | 1994-07-26 | 1996-02-13 | Nikka Chem Co Ltd | Rinsing supplement composition for washing |
WO1996004937A1 (en) * | 1994-08-12 | 1996-02-22 | The Procter & Gamble Company | Uncomplexed cyclodextrin solutions for odor control on inanimate surfaces |
US5534165A (en) * | 1994-08-12 | 1996-07-09 | The Procter & Gamble Company | Fabric treating composition containing beta-cyclodextrin and essentially free of perfume |
US5879666A (en) * | 1996-10-24 | 1999-03-09 | The Procter & Gamble Company | Methods and compositions for reducing body odor |
US5897854A (en) * | 1997-06-09 | 1999-04-27 | The Procter & Gamble Company | Methods for reducing body odor |
-
2000
- 2000-05-19 JP JP2000620996A patent/JP2003500173A/en active Pending
- 2000-05-19 WO PCT/CH2000/000280 patent/WO2000072890A1/en not_active Application Discontinuation
- 2000-05-19 EP EP00925012A patent/EP1100551A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63315200A (en) * | 1987-06-15 | 1988-12-22 | Jiyoriibu:Kk | Deodorizer for cattle feces and urine |
JPH0841780A (en) * | 1994-07-26 | 1996-02-13 | Nikka Chem Co Ltd | Rinsing supplement composition for washing |
WO1996004937A1 (en) * | 1994-08-12 | 1996-02-22 | The Procter & Gamble Company | Uncomplexed cyclodextrin solutions for odor control on inanimate surfaces |
US5534165A (en) * | 1994-08-12 | 1996-07-09 | The Procter & Gamble Company | Fabric treating composition containing beta-cyclodextrin and essentially free of perfume |
US5879666A (en) * | 1996-10-24 | 1999-03-09 | The Procter & Gamble Company | Methods and compositions for reducing body odor |
US5897854A (en) * | 1997-06-09 | 1999-04-27 | The Procter & Gamble Company | Methods for reducing body odor |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 198906, Derwent World Patents Index; Class D15, AN 1989-043082, XP002121540 * |
DATABASE WPI Section Ch Week 199616, Derwent World Patents Index; Class D25, AN 1996-157617, XP002121541 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8741275B2 (en) | 2010-06-04 | 2014-06-03 | Robetet, Inc. | Malodor neutralizing compositions comprising undecylenic acid or citric acid |
US9200241B2 (en) | 2011-01-27 | 2015-12-01 | Robertet, Inc. | Malodor neutralizing compositions comprising bornyl acetate or isobornyl acetate |
WO2013148716A3 (en) * | 2012-03-30 | 2013-12-27 | Robertet, Inc. | Malodor neutralizing compositions containing acids and alicyclic ketones |
US9114180B2 (en) | 2012-03-30 | 2015-08-25 | Robertet, Inc. | Malodor neutralizing compositions containing acids and alicyclic ketones |
EP3056247A3 (en) * | 2012-03-30 | 2016-10-12 | Robertet, Inc. | Malodor neutralizing compositions containing acids and alicyclic ketones |
EP3056247B1 (en) | 2012-03-30 | 2018-06-13 | Robertet, Inc. | Malodor neutralizing compositions containing citric acid and alicyclic ketones |
Also Published As
Publication number | Publication date |
---|---|
EP1100551A1 (en) | 2001-05-23 |
JP2003500173A (en) | 2003-01-07 |
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