Anhydrous blends of p-chloro-m-xylenol in surfactant mixtures

• US 5,114,978 A
• Filed: 10/15/1990
• Issued: 05/19/1992
• Est. Priority Date: 10/15/1990
• Status: Expired due to Fees

• Current Assignee: Rhone-Poulenc Surfactants and Specialties LP A Delaware Limited Partnership
• Original Assignee: Rhone-Poulenc Surfactants and Specialties LP
• Inventors: Tenore, Richard R., Corti, Mike E.
• Primary Examiner(s): Robinson, Allen J.
• Assistant Examiner(s): CLARDY, S
• Application Number:
  US07/596,295
• Time in Patent Office: 582 Days
• Field of Search: 514/737
• US Class Current: 514/737
• 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 25/02 containing liquids as carriers, diluents or solvents
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: A01N 31/08 Oxygen or sulfur directly attached to an aromatic ring system
• CPC Class Codes: A61K 31/055 the aromatic ring being substituted by halogen
• CPC Class Codes: C11D 1/29 Sulfates of polyoxyalkylene ethers
• CPC Class Codes: C11D 1/523 Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
• CPC Class Codes: C11D 1/652 Mixtures of anionic compounds with carboxylic amides or alkylol amides
• CPC Class Codes: C11D 3/48 Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions

Abstract

A composition, or an aqueous mixture containing a composition of a substantially anhydrous blends of parachlorometaxylenol, fatty acid diethanolamides, and anionic surfactants of the class diethanolammonium alkylpolyoxyethyl sulfate and method for making such compositions. The compositions and solutions containing the composition have antimicrobial and cleansing properties.

Claims

1. A composition that forms a clear, homogeneous solution with water in all proportions comprising a substantially anhydrous mixture of a blend of parachlorometaxylenol, a diethanolamide of a fatty acid, and an anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid.

2. The composition of claim 1 wherein the diethanolamide of the fatty acid is selected from at least one of the compounds having the formula:

##STR5## wherein ##STR6## represents that portion of the fatty acid of the formula ##STR7## that are found in the glyceride esters of a vegetable oil.

3. The composition of claim 2 wherein the fatty acid is selected from at least one of the group consisting of a saturated, unsaturated, and hydroxyl substituted acid.

4. The composition of claim 2 wherein said fatty acid is selected from at least one of the group consisting of caproic, caprylic, capric, lauric, myristic, palmitic, stearic, oleic, linoleic, and ricinoleic acids.

5. The composition of claim 2 wherein the fatty acid diethanolamide is derived from the fatty acid glycerides found in coconut oil.

6. The composition of claim 1 wherein said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is a mixture of anionic surfactants of the formula:

space="preserve" listing-type="equation">R.sup.1 (OCH.sub.2 CH.sub.2).sub.n O SO.sub.3.sup.- N.sup.+ H.sub.2 (CH.sub.2 CH.sub.2 OH).sub.2

wherein R¹ represents a saturated or unsaturated alkyl chain having an average of about 8 to 18 carbon atoms, and n represents an integer having an average value of from 0 to 12.

7. The composition of claim 6 wherein R¹ represents a saturated or unsaturated alkyl chain having an average of about 12 carbon atoms, and n represents an integer having an average of about 3.

8. The composition of claim 1 wherein said parachlorometaxylenol is present in an amount ranging from about 5 to about 25 percent, by weight, said diethanolamide of a fatty acid is present in an amount ranging from about 40 to about 65 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is present in an amount ranging from about 25 to about 45 percent, by weight.

9. The composition of claim 1 wherein said parachlorometaxylenol is present in an amount of about 23 percent, by weight, said diethanolamide of a fatty acid is present in an amount of about 46 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is present in an amount of about 31 percent by weight.

10. The composition of claim 1 wherein said parachlorometaxylenol is present in an amount of about 7 percent, by weight, said diethanolamide of a fatty acid is present in an amount of about 56 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethyl-sulfuric acid is present in an amount of about 37 percent by weight.

11. A method of making a clear homogeneous blend of parachlorometaxylenol that forms a clear homogeneous solution with water in all proportions comprising the steps of:

(a) making a solution of a mixture of a fatty acid diethanolamide and diethanolamine;

(b) adding to the solution a mixture of alkylpolyoxyethyl sulfuric acids of formula R¹ (OCH₂ CH₂)_n OSO₃ H wherein R¹ represents saturated or unsaturate alkyl groups having an average chain length of 8 to 18 carbon atoms, and n is an integer having an average value of from 0 to 12, at a rate which keeps the exothermic reaction temperature below 45°

C.; and

(c) adding parachlorometaxylenol to the mixture of (a) and (b) with stirring.

12. The method of claim 11 where the ratio of said fatty acid diethanolamide to said mixture of alkylpolyoxyethyl sulfuric acid ranges from about 1:

1 to about 9;

1.

13. The method of claim 11 where the ratio of said diethanolamine to said mixture of alkylpolyoxyethyl sulfuric acid ranges from about 1:

4 to about 2;

3.

14. An aqueous solution comprising water and a composition comprising a substantially anhydrous mixture of a blend of parachlorometaxylenol, a diethanolamide of fatty acid, and an anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid.

15. The aqueous solution of claim 14 wherein the diethanolamide of the fatty acid has the formula:

##STR8## wherein ##STR9## represents that portion of a fatty acid of the formula ##STR10## that is found in the glyceride ester of vegetable oil.

16. The aqueous solution of claim 15 wherein the fatty acid is selected from the group consisting of a saturated, unsaturated, and hydroxyl substituted acid.

17. The aqueous solution of claim 15 wherein said fatty acid is selected from at least one of the group consisting of caproic, caprylic, capric, lauric, myristic, palmitic, stearic, oleic, linoleic, and ricinoleic acids.

18. The aqueous solution of claim 15 wherein the fatty acid diethanolamide is derived from the fatty acid glycerides found in coconut oil.

19. The aqueous solution of claim 14 wherein said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is a mixture of anionic surfactants of the formula:

space="preserve" listing-type="equation">R.sup.1 (OCH.sub.2 CH.sub.2).sub.n O SO.sub.3.sup.- N.sup.+ H.sub.2 (CH.sub.2 CH.sub.2 OH).sub.2

wherein R¹ represents saturated or unsaturated alkyl having an average of about 8 to 18 carbon atoms, and n represent an integer having an average value of from 0 to 12.

20. The aqueous solution of claim 19 wherein R¹ represents saturated or unsaturated alkyl chains having an average of about 12 carbon atoms, and n represents an integer having an average value of about 3.

21. The aqueous solution of claim 14 wherein said parachlorometaxylenol is present in an amount ranging from about 5 to about 25 percent, by weight, said diethanolamide of fatty acid is present in an amount ranging from about 40 to about 65 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is present in an amount ranging from about 25 to about 45 percent, by weight.

22. The aqueous solution of claim 14 wherein said parachlorometaxylenol is present in an amount of about 23 percent, by weight, said diethanolamide of fatty acid is present in an amount of about 46 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is present in an amount of about 31 percent by weight.

23. The aqueous solution of claim 14 wherein said parachlorometaxylenol is present in an amount of about 7 percent, by weight, said diethanolamide of fatty acid is present in an amount of about 56 percent, by weight, and said anionic surfactant of the class of a diethanolammonium salt of an alkylpolyoxyethylsulfuric acid is present at about 37 percent by weight.