Synergistic composition of peracetic acid and amine oxide

• US 6,168,808 B1
• Filed: 04/24/1998
• Issued: 01/02/2001
• Est. Priority Date: 04/24/1997
• Status: Expired due to Fees

• Current Assignee: Chemoxal SA (Air Liquide SA), Societe D'Exploitation De Produits Pour Les Industries Chimiques Seppic
• Original Assignee: Chemoxal SA (Air Liquide SA), Societe D'Exploitation De Produits Pour Les Industries Chimiques Seppic
• Inventors: Hamon Godin, Catherine, Le Rouzic, Daniel, Gouges, Yves
• Primary Examiner(s): Pak, John
• Assistant Examiner(s): CHOI, FRANK I
• Application Number:
  US09/065,563
• Time in Patent Office: 984 Days
• Field of Search: 424/405, 424/409, 424/414, 424/600, 424/616, 424/126, 514/557, 514/562, 514/558, 514/559, 514/560, 514/644, 514/561, 514/772, 514/772.1, 514/975, 514/183, 514/211, 514/212, 514/218, 514/277, 514/430, 514/431, 514/449, 514/450, 514/579, 514/663, 514/665, 514/667, 514/672, 514/673, 514/674, 514/715, 514/717, 514/718, 514/719, 514/720, 514/722, 514/723, 514/727, 514/970, 514/788, 811/1, 106/15.05, 106/18.32, 427/440, 428/540, 428/541
• US Class Current: 424/616
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 33/24 only one oxygen atom attached to the nitrogen atom
• CPC Class Codes: A01N 37/16 containing the group; Thio analogues thereof
• CPC Class Codes: A61L 2/186 Peroxide solutions
• CPC Class Codes: A61L 2202/23 Containers, e.g. vials, bottles, syringes, mail
• CPC Class Codes: A61L 2202/24 Medical instruments, e.g. endoscopes, catheters, sharps

Abstract

Composition in the form of an aqueous solution, useful for disinfecting hard surfaces comprises:

a) from 0.0005% to 20% by weight of peracetic acid,

b) from 0.001% to 45% by weight of acetic acid,

c) from 0.001% to 35% by weight of hydrogen peroxide,

d) from 0.0001% to 2% by weight of at least one compound of formula (I)

(R₁) (R₂) (R₃)N→O  (I)

e) if desired, up to 2.5% by weight of at least one nonionic surfactant,

and wherein

f) the weight ratio between the compound of formula (I) and the peracetic acid is less than or equal to 1, and in that

g) the weight ratio between the nonionic surfactant and the peracetic acid is less than or equal to 0.2.

Claims

1. A method of disinfecting a hard surface selected from the group consisting of unseasoned wood and unseasoned wood which has become blue-stained by molds, which comprises adding a fungicidally effective amount of a composition in the form of an aqueous solution to disinfect the hard surface;

said composition comprising

a) from 0.0005% to 5% by weight of peracetic acid,

b) from 0.001% to 20% by weight of acetic acid,

c) from 0.001% to 10% by weight of hydrogen peroxide,

d) from 0.0001% to 1% by weight of at least one compound of formula (I)

2. The method as defined in claim 1, wherein the composition further comprises, as nonionic surfactant, at least one compound of formula (II)

3. The method as defined in claim 2, wherein R₅ represents a linear or branched, saturated or unsaturated aliphatic radical containing from 10 to 16 carbon atoms;

and n represents a number between 1 and 20.

4. The method as defined in claim 2, wherein in formula (II), R₇ represents a hydrogen atom and the group [CH (R₈)—

CH(R₆)—

O]_n represents solely [CH₂—

CH₂]_n structural units.

5. The method as defined in claim 1, wherein in formula (I), R₁ represents a linear or branched aliphatic radical containing from 8 to 18 carbon atoms and R₂ and R₃ each represent a methyl radical.

6. The method as defined in claim 5, wherein in formula (I), R₁ is selected from the group consisting of octyl, decyl, dodecyl, tetradecyl and hexadecyl radicals.

7. The method as defined in claim 1, further comprising one or more compounds selected from the group consisting of a) strong acid stabilizers or alkaline salts thereof, and b) a corrosion inhibitor chosen from phosphoric acid salts.

8. The method as defined in claim 1, wherein the weight ratio between the compound of formula (I) and peracetic acid is less than or equal to 0.2.