Surfactant compositions

• US 4,313,847 A
• Filed: 05/25/1979
• Issued: 02/02/1982
• Est. Priority Date: 06/15/1978
• Status: Expired due to Term

• Current Assignee: ICI America Incorporated (Nouryon BV)
• Original Assignee: ICI America Incorporated (Nouryon BV)
• Inventors: Chasin, David G., Zaucha, Thomas J.
• Primary Examiner(s): Lovering, Richard D.
• Application Number:
  US06/042,626
• Time in Patent Office: 984 Days
• Field of Search: 252/356, 252/357, 252/174.16, 252/DIG. 17
• US Class Current: 516/57
• CPC Class Codes: A01N 25/30 characterised by the surfactants
• CPC Class Codes: C11D 1/345 Phosphates or phosphites
• CPC Class Codes: C11D 1/44 Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• CPC Class Codes: C11D 1/667 Neutral esters, e.g. sorbitan esters
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/722 Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups C11D1/721 takes precedence
• CPC Class Codes: C11D 1/86 Mixtures of anionic, cationic, and non-ionic compounds
• CPC Class Codes: Y10S 516/07 Organic amine, amide, or n-base containing

Abstract

Surfactant compositions, which are particularly useful in the preparation of concentrated pesticide-containing formulations, are disclosed. The surfactant compositions contain (a) a polyoxyalkylene alkyl or alkylaryl ether phosphate ester, (b) a polyoxyalkylene alkyl amine, and (c) a material selected from the group consisting of nonionic polyoxyalkylated surfactants, polyhydric alcohol esters and polyoxyalkylene glycols.

Claims

1. A surfactant composition comprising

(a) a polyoxyethylene nonyl phenol phosphate ester,

(b) a polyoxyethylene N,N-bis(2-hydroxyethyl) alkyl amine, wherein the alkyl contains from 12 to 18 carbon atoms, and

(c) a polyoxyethylene castor oil,

wherein the amount of the polyoxyethylene nonyl phenol phosphate ester component is equal to from about 60% to about 80% by weight based upon the total weight of the composition, the amount of the polyoxyethylene N,N-bis(2-hydroxyethyl)alkyl amine is equal to from about 14% to about 30% by weight based upon the total weight of the composition and the amount of the polyoxyethylene castor oil is equal to from about 5% to about 15% by weight based upon the total weight of the composition.

2. A surfactant composition, as claimed in claim 1, containing 67% by weight based upon the total weight of the composition of polyoxyethylene(8)nonyl phenol phosphate ester, 23% by weight based upon the total weight of the composition of polyoxyethylene(3)N,N-bis(2-hydroxyethyl)alkyl amine and 10% by weight based upon the total weight of the composition of polyoxyethylene(40)castor oil.

3. A surfactant composition comprising

(a) a polyoxyethylene nonyl phenol phosphate ester,

(b) N,N-bis(2-hydroxyethyl)alkyl amine wherein the alkyl portion contains from 12 to 18 carbon atoms, and

(c) a polyoxyethylene polyoxypropylene block copolymer of butanol,

wherein the amount of the polyoxyethylene nonyl phenol phosphate ester is equal to from about 20% to about 80% by weight based upon the total weight of the composition, the amount of the N,N-bis(2-hydroxyethyl)alkyl amine is equal to from about 14% to about 50% by weight based upon the total weight of the composition and the amount of copolymer of butanol is equal to from about 5% to about 50% by weight based upon the total weight of the composition.

4. A surfactant composition, as claimed in claim 3, containing 42% by weight based upon the total weight of the composition of polyoxyethylene(8)nonyl phenol phosphate ester, 28% by weight based upon the total weight of the composition of N,N-bis(2-hydroxyethyl)C₁₄ -C₁₈ alkyl amine and 30% by weight based upon the total weight of the composition of a polyoxyethylene polyoxypropylene block copolymer of butanol having an average molecular weight of from 2,400 to 3,500.