Surfactants mixtures

• US 5,683,958 A
• Filed: 05/31/1995
• Issued: 11/04/1997
• Est. Priority Date: 08/09/1990
• Status: Expired due to Term

• Current Assignee: Monsanto Technology LLC (Bayer AG)
• Original Assignee: Monsanto Company (Bayer AG)
• Inventors: Berger, Paul D., Jimenez, Antonio M.
• Primary Examiner(s): Clardy, S. Mark
• Assistant Examiner(s): BEMBENICK, BRIAN
• Application Number:
  US08/455,929
• Time in Patent Office: 888 Days
• Field of Search: 504/116, 71/DIG. 1, 252/367, 252/355, 252/357
• US Class Current: 504/364
• 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 25/32 Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions
• CPC Class Codes: A01N 57/20 containing acyclic or cycloaliphatic radicals
• CPC Class Codes: C09K 23/017 Mixtures of compounds
• CPC Class Codes: C09K 23/16 Amines or polyamines
• CPC Class Codes: Y10S 516/05 Organic amine, amide, or n-base containing
• CPC Class Codes: Y10S 516/07 Organic amine, amide, or n-base containing
• CPC Class Codes: Y10S 516/916 The compound contains repeating -OCnH2n-, i.e. repeating unsubstituted oxyalkylene

Abstract

There are provided compositions of certain polyoxyalkylene alkylamine surfactants having eye irritation reduced by the addition of an effective amount of a sulfated polyoxyalkylene alkylphenol, alcohol sulfate, polyoxyalkylene alcohol sulfate, mono- or dialcohol phosphate mono- or di-(polyoxyalkylene alcohol) phosphate, mono-or di- (polyoxyalkylene alkylphenol) phosphate, polyoxyalkylene alkylphenol carboxylate or polyoxyalkylene alcohol carboxylate surfactant. Also provided are pesticidal, particularly herbicidal, compositions comprising polyoxyalkylene alkylamine surfactants having eye irritation reduced by addition of these eye irritation reducing compounds.

Claims

1. A water soluble surfactant composition comprising

(a) an amine surfactant component having the chemical structure ##STR8## wherein x is a number from about 7 to about 19;

n₁ and n₂ are numbers independently selected from 1 to about 30;

the average sum of n₁ and n₂ is 2 or greater; and

R₁ and R₂ are C₂ -C₄ alkylene radicals;

said amine surfactant component being in an amount sufficient to cause unacceptable eye irritation during spraying of the composition; and

(b) an effective eye irritation reducing amount of sulfated polyoxyalkylene alkylphenol surfactant component, optionally containing of 3% by weight or more of a ring sulfonated component, and having the chemical structure ##STR9## wherein m is a number up to about 60, R is C₂ -C₄ alkylene and R¹ is a C₈ -C₂₀ alkyl group and being present in an amount sufficient to reduce the eye irritation.

2. The composition of claim 1 wherein the sulfated polyoxyalkylene alkylphenol component contains at least about 3 percent of a ring sulfonated component, m is a number up to about 10, R is ethylene and R¹ is C₉ -C₁₅ alkyl.

3. The composition of claim 2 wherein in the sulfated polyoxyalkylene alkylphenol component m is a number about 4 and R¹ is nonyl.

4. The composition of claims 1, 2, or 3 wherein in the amine surfactant component R₁ and R₂ are each ethylene, and the average sum of n₁, and n₂ is from about 4 to about 20.

5. The composition of claim 1 wherein components (a) and (b) are present in a weight/weight ratio of about 50:

50 to about 95;

5.

6. The composition of claim 5 wherein components (a) and (b) are present in a weight/weight ratio of about 80:

20 about 85;

15.

7. The composition of claim 4 wherein the amine surfactant component comprises ethoxylated tallowamine having 8-13 moles of ethylene oxide.

8. A water soluble surfactant composition comprising

(a) an amine surfactant component comprising an alkylamine having the chemical structure ##STR10## wherein x is a number from about 7 to about 19;

n, and n₂ are numbers independently selected from 1 to about 30;

the average sum of n₁ and n₂ is 2 or greater; and

R₁ and R₂ are C₂ -C₄ alkylene radicals;

said amine surfactant component being in an amount sufficient to cause unacceptable eye irritation during spraying of the composition; and

(b) an effective eye irritation reducing amount of a sulfated alcohol component having the chemical structure

space="preserve" listing-type="equation">R.sub.3 --O--(R.sub.4 O)m--SO.sub.3

wherein R₃ is C₈ -C₂₀ alkyl, R₄ is a C₂ -C₄ alkylene radical and m is a number 0 to 60 and being present in an amount sufficient to reduce the eye irritation.

9. The composition of claim 8 wherein in the sulfated alcohol component R₃ is C₃ -C₁₀ alkyl and m is 0.

10. A water soluble surfactant composition comprising:

(a) an amine surfactant component having the chemical structure ##STR11## wherein x is a number from about 7 to about 19;

n₁ and n₂ are numbers independently selected from 1 to about 30;

the average sum of n₁ and n₂ is 2 or greater;

R₁ and R₂ are C₂ -C₄ alkylene radicals, said amine surfactant component being in an amount sufficient to cause unacceptable eye irritation during spraying of the composition; and

(b) an effective eye irritation reducing amount of a phosphate monoester or mixture of phosphate monoesters having the general formula ##STR12## wherein R¹ is C₈ -C₂₀ alkyl or C₈ -C₂₀ alkylphenyl;

R is C₂ -C₄ alkylene;

m is zero or a number up to about 60;

alone or in combination with a phosphate diester or mixture of phosphate diesters having the general formula;

##STR13## wherein R, R₁, and m are as just described, provided the weight percentage of phosphate monoester (or monoesters) exceeds that of the phosphate diester (or diesters).

11. The composition of claim 10 wherein the phosphate component is a mixture of monoester and diester.

12. The composition of claim 11 wherein R¹ is nonylphenyl and m is about 4.

13. The composition of claim 11 wherein R¹ is C₈ -C₁₀ straight chain alkyl and m is 0.

14. The composition of claims 10, 11, 12, or 13 wherein in the amine surfactant component R₁ and R₂ are each ethylene and the average sum of n and n₂ is from about 4 to about 20.

15. The composition of claim 14 wherein the amine surfactant component comprises ethoxylated tallowamine having 8-13 moles of ethylene oxide.

16. The composition of claim 10 wherein (a) and (b) are present in a weight/weight ratio of about 80:

20 to about 85;

15.