Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1994-11-22
1997-10-28
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510137, 510155, 510156, 510405, 510426, 510429, 560247, 554 97, C11D 1700
Patent
active
056818033
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a detergent composition having a remarkably low degree of irritability to the skin of the body, a high degree of resistance to hard water, a low critical micelle concentration (cmc), and a low Krafft point.
BACKGROUND ART
A large number of anionic surface-active agents have been used as detergents on the basis of their excellent surface-active characteristics. The anionic surface-active agents that can be used as detergents for washing kitchen appliances such as dishes shampoos for washing or rinsing the body or the hair are required to be extremely low in the irritability to the skin of the human body because they are always used in a state that they are in contact with the skin of the human body. Hence, a number of those anionic surface-active agents as being used in contact with the body should be limited and they may include, for example, polyoxyethylene alkyl-sulfuric acid esters, alpha-olefin sulfonic acid esters, acidic N-acyl amino acids, alkyloyl alkyl taurine salts, acyl isethionates, alkyl ether carboxylic acids, higher fatty acids, alkyl phosphoric acid ester and alkyl sulfuric acid esters.
On the other hand, recently, alpha-sulfo-fatty acid methyl esters catch an increasing attention in terms of their cleansing performance in the field of detergents for washing clothes, which are not required to be used in contact with the skin of the human body. The alpha-sulfo-fatty acid methyl esters have received a growing attention in the field of the detergents for washing the clothes because they are to be prepared from natural fats oil, such as palm oil.
However, if the alpha-sulfo-fatty acid methyl esters are used for detergents for washing dishes and other kitchen appliances such as dishes and for washing the body or the hair, which are required to be employed in contact with the human body, those detergents suffer from the disadvantage because the alpha-sulfo-fatty acid methyl esters are irritable to the human body. For such reasons, the alpha-sulfo-fatty acid methyl esters are not applied to a sufficient extent to the detergents for washing kitchen appliances. If it would be possible to single out a surface-active alpha-sulfo-fatty acid methyl ester having a low degree of irritability to the skin or the body, useful for the kitchen appliances and applicable to a variety of fields, from the alpha-sulfo-fatty acid methyl esters for the detergents, the alpha-sulfo-fatty acid methyl esters are extremely advantageous from the industrial point of view because they are prepared from raw materials rich in the tropical area of the world.
U.S. Pat. No. 3,808,200 discloses esters of alpha-sulfo fatty acids with mannitol, sorbitol, glucose or sucrose.
CH-A-490486 discloses esters of alpha-sulfo fatty acids with a glycol, glycerine or a polyalkylene glycol.
DE-A-3941061 discloses esters of alpha-sulfo fatty acids with sorbitol.
GB-A-705408 and DE-A-3941365 disclose esters of alpha-sulfo fatty acids with glycerine.
WO-A-9008181 and EP-A-295535 disclose alpha-sulfonic acid derivatives of the formula C.sub.m H.sub.2m-l --CO--(OM).sub.x --OR (R=alkyl, OM=oxyalkylene).
DISCLOSURE OF INVENTION
The primary object of the present invention is to provide a detergent composition having a low degree of irritability to the skin and containing an anionic surface-active agent which is selected from the alpha-sulfo-fatty acid derivatives having a low degree of irritability to the skin of the human body and having a high degree of surface-active performance.
Another object of the present invention is to provide a detergent composition having a low degree of irritability to the skin and showing a high degree of resistance to hard water during washing.
A further object of the present invention is to provide a detergent composition having a low degree of irritability to the skin, exhibiting a high degree of washing performance, and having a low critical micelle concentration.
A still further object of the present invention is to provide a liquid detergent composition having a
REFERENCES:
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patent: 2127641 (1938-07-01), Cremer et al.
patent: 3808200 (1974-04-01), Bistline et al.
patent: 4472282 (1984-09-01), Ramachandran et al.
patent: 4543204 (1985-09-01), Gervasio
patent: 4705644 (1987-11-01), Barone et al.
patent: 4707289 (1987-11-01), Ramachandran et al.
Akabane Yasuhiro
Egawa Naoyuki
Fukuda Masahiro
Kanao Hirofumi
Okano Tomomichi
Lieberman Paul
Lion Corporation
Ogden Necholus
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