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Laundry detergent compositions comprising zwitterionic polyamines and mid-chain branched surfactants

A surfactant and zwitterion technology, applied in the direction of surface active detergent composition, detergent composition, organic detergent composition, etc.

Inactive Publication Date: 2006-04-26
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unless the clay can be initially dissolved away from the fabric fibers, especially in the case of hydrophilic fibers (especially cotton), there is little in solution for the dispersant to dechelate

Method used

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  • Laundry detergent compositions comprising zwitterionic polyamines and mid-chain branched surfactants
  • Laundry detergent compositions comprising zwitterionic polyamines and mid-chain branched surfactants
  • Laundry detergent compositions comprising zwitterionic polyamines and mid-chain branched surfactants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0214] Preparation of 4,9-dioxa-1,12-dodecanediamine, ethoxylated to average E20 / NH,

[0215] Quaternized to 90% and sulfated to 90%.

[0216] 4,9-dioxa-1,12-dodecanediamine was ethoxylated to an average of 20 ethoxylates / backbone NH unit . Ethoxygenation was carried out in a 2 gallon stirred stainless steel autoclave equipped with means for temperature measurement and control, pressure measurement, vacuum evacuation and inert gas purge, sampler and means for introducing ethylene oxide as a liquid Kylation reaction. An approximately 20 lb net weight cylinder of ethylene oxide was installed to pump the ethylene oxide as a liquid into the autoclave, where the cylinder was placed on a balance so that the cylinder's weight change could be monitored. A 200 g portion of 4,9-dioxa-1,12-dodecanediamine ("DODD", m.w. 204.32, 97%, 0.95 mol, 1.9 mol N, 3.8 mol ethoxylated NH) was added into the autoclave. The autoclave was then sealed and purged of air (by applying...

Embodiment 2

[0223] Ethoxylated to average E20 / NH, quaternized to 90%, and sulfated to 35% bis

[0224] Preparation of (hexamethylene)triamine.

[0225] Ethoxylation of bis(hexamethylene)triamine Ethoxygenation was carried out in a 2 gallon stirred stainless steel autoclave equipped with means for temperature measurement and control, pressure measurement, vacuum evacuation and inert gas purge, sampler and means for introducing ethylene oxide as a liquid Kylation reaction. An approximately 20 lb net weight cylinder of ethylene oxide was installed to pump the ethylene oxide as a liquid into the autoclave, where the cylinder was placed on a balance so that the cylinder's weight change could be monitored.

[0226] A 200 g portion of bis(hexamethylene)triamine (BHMT) (M.W. 215.39, high purity 0.93 mol, 2.8 mol N, 4.65 mol ethoxylated (NH) sites) was charged to the autoclave. The autoclave was then sealed and purged of air (by applying vacuum to minus 28"Hg, followed by pre...

Embodiment 3

[0233] Ethoxylated to average E20 / NH, quaternized to 90%, and sulphated to 90%

[0234] Preparation of 4,7,10-trioxa-1,13-tridecanediamine.

[0235] Ethoxylation of 4,7,10-trioxa-1,13-tridecanediamine : Ethanol was carried out in a 2 gallon stirred stainless steel autoclave equipped with means for temperature measurement and control, pressure measurement, vacuum evacuation and inert gas purge, sampler and means for introducing ethylene oxide as a liquid. Oxylation reaction. A cylinder of approximately 20 pounds net weight of ethylene oxide was installed to pump the ethylene oxide as a liquid into the autoclave and was placed on a balance so that the cylinder's weight change could be monitored. A 200 g portion of 4,7,10-trioxa-1,13-tridecanediamine (Mw 220.31 Daltons, 97% 0.9 mol, 1.8 mol N, 3.6 mol ethoxylated (NH) sites ) into the autoclave. The autoclave was then sealed and purged of air (by applying vacuum to minus 28"Hg, followed by pressurization to 250 psi...

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Abstract

The present invention relates to laundry detergent compositions which provide enhanced hydrophilic soil cleaning benefits comprising a zwitterionic polyamine, a surfactant system comprising a mid-chain branched surfactant, and carrier and other adjunct ingredients.

Description

field of invention [0001] The present invention relates to laundry detergent compositions which provide enhanced removal benefits of hydrophilic soils, especially clays. The laundry detergent compositions of the present invention utilize both zwitterionic polyamines in combination with a surfactant system comprising a mid-chain branched surfactant, especially a mid-chain branched alkyl sulfonate. The present invention additionally relates to a method of cleaning fabrics with heavy clay soil deposits. Background of the invention [0002] Fabrics, especially clothing, can be stained with various impurities ranging from hydrophobic stains (grease, oil) to hydrophilic stains (clay). The level of cleaning required to remove such impurities depends largely on the amount of soil present and the degree to which the impurities have contacted the fibers of the fabric. Grass stains often involve direct abrasive contact with growing vegetation, resulting in highl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/37C11D3/00C11D3/39C11D1/12C11D1/14C11D1/22C11D1/29C11D3/395
CPCC11D1/12C11D1/143C11D1/146C11D1/22C11D1/29C11D3/3723C11D3/3796C11D3/3947
Inventor K·N·普里斯E·P·戈塞林克
Owner PROCTER & GAMBLE CO
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