Light-duty liquid detergents based on compositions derived from natural oil metathesis

Patent metadata

Field	Value
Publication number	US-9249374-B2
Application number	US-201113880026-A
Country	US
Kind code	B2
Filing date	Oct 25, 2011
Priority date	Oct 25, 2010
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

Light-duty liquid detergents derived from metathesized natural oil feedstocks are disclosed. The detergents comprise water, at least one anionic surfactant, and at least one secondary surfactant derived from a metathesis-derived C 10 -C 17 monounsaturated acid or its ester derivatives. In particular, the secondary surfactant is selected from C 10 amidoamines, quaternized C 10 or C 12 amidoamines, C 12 amidoamine oxides, C 12 sulfobetaines, C 12 amidoamine sulfobetaines, and C 12 alkanolamides. The detergents noted above rival or outperform commercial baselines in standard foam tests for liquid detergents, particularly those used for dishwashing.

First claim

We claim:

1. A light-duty liquid detergent comprising water, 0.1 to 30 wt. % of at least one anionic surfactant selected from the group consisting of fatty alkyl sulfates, fatty alkyl ether sulfates, alkyl aryl sulfonates, and fatty ester sulfonates, and 0.1 to 10 wt. % of at least one secondary surfactant derived from a metathesis-derived C 10 -C 17 monounsaturated acid or its ester derivatives and selected from the group consisting of C 10 amidoamines, quaternized C 10 or C 12 amidoamines, C 12 amidoamine oxides, C 12 sulfobetaines, C 12 amidoamine sulfobetaines, and C 12 alkanolamides;
wherein the C 10 amidoamine has the structure:

the quaternized C 10 or C 12 amidoamine has the structure:

the C 12 amidoamine oxide has the structure:

the C 12 sulfobetaine has the structure:

the C 12 amidoamine sulfobetaine has the structure:

and
the C 12 alkanolamide has the structure:

2. The detergent of claim 1 wherein the secondary surfactant is a C 10 amidoamine having the structure:

3. The detergent of claim 1 wherein the secondary surfactant is a quaternized C 10 or C 12 amidoamine having the structure:

4. The detergent of claim 1 wherein the secondary surfactant is a C 12 amidoamine oxide having the structure:

5. The detergent of claim 1 wherein the secondary surfactant is a C 12 sulfobetaine having the structure:

6. The detergent of claim 1 wherein the secondary surfactant is a C 12 amidoamine sulfobetaine having the structure:

7. The detergent of claim 1 wherein the secondary surfactant is a C 12 alkanolamide having the structure:

8. The detergent of claim 1 wherein the acid or ester derivative reactant has at least 1 mole % of trans-Δ 9 unsaturation.

9. The detergent of claim 1 comprising from 0.2 to 8 wt. % of the secondary surfactant.

10. The detergent of claim 1 further comprising one or more additives selected from the group consisting builders, buffers, abrasives, electrolytes, diamines, bleaching agents, fragrances, dyes, foaming control agents, foam enhancers, polymeric suds stabilizers, antimicrobial agents, thickeners, pigments, gloss enhancers, enzymes, dispersants, hydrotropes, opacifiers, chelants, preservatives, UV light absorbers, color stabilizers, vitamins, herbal extracts, emollients, skin conditioners, humectants, rheology modifiers, solvents, surfactants, and pearlescent agents.

Assignees

• Allen Dave R
• Bernhardt Randal J
• Dillavou Scott
• Wolfe Patrick Shane
• Stepan Co

Inventors

• Allen Dave R
• Bernhardt Randal J
• Dillavou Scott
• Wolfe Patrick Shane

Classifications

• C07C69/593

  Dicarboxylic acid esters having only one carbon-to-carbon double bond · CPC title

• C08K5/32

  Compounds containing nitrogen bound to oxygen · CPC title

• A01N25/30

  characterised by the surfactants · CPC title

• C07C209/12

  with formation of quaternary ammonium compounds · CPC title

• C08K5/01

  Hydrocarbons {(C08K5/0091 takes precedence)} · CPC title