Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1995-07-27
1997-10-21
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510218, 510365, 510422, 510470, 510506, C11D 170, C11D 175, C11D 322
Patent
active
056796293
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to a detergent composition for a hard surface and more particularly a detergent composition having excellent foaming properties which effectively, safely and rapidly removes clinging dirt, such as greasy dirt on tiles, enameled ironware, etc. in a kitchen that is the cooking oil splashed during cooking and denatured with heat or time.
BACKGROUND OF THE INVENTION
A ventilator, a stove, etc. in the kitchen of homes easily get greasy with an oily and sticky substance that is difficult to remove. This oily dirt is denatured cooking oil which has splashed or smoked during deep-frying or shallow-frying and stuck to the surface of the ventilator, the stove, etc. In general, many kinds of cooking oil have a chemical structure containing an unsaturated double bond. Such oil easily undergoes oxidation or polymerization on exposure to air for a long time under action of heat or light to gradually increase its molecular weight into resinous matter. This is the substance of the denatured oily dirt which is the cause of difficulty in cleaning the kitchen.
The ventilator in homes, if left uncleaned, gets stained with a notable amount of oily dirt and becomes unsightly in about 6 months. By that time, the adhered oil has undergone considerable denaturation with strong adhesion to the substrate, turning into heavy dirt that cannot be easily removed. Detergent compositions containing an alkylene glycol ether type solvent, such as butyl carbitol, have been used for removal of such dirt. However, these detergent compositions were unsatisfactory for their ill smell and insufficient detergent action.
In order to solve the above-described problems, Japanese Patent Application Public Disclosure No. 10808/76 proposes to use hexylene glycol in combination with an alkylene glycol ether solvent to provide a safe detergent composition which has enhanced detergency and is substantially odorless.
Further, Japanese Patent Application Public Disclosure No. 236300/89 discloses a detergent for hard surfaces which contains a polyoxyalkylene monobenzyl ether with the number of moles of the polyoxyalkylene added being not more than 5. According to the description of the publication, this detergent lathers nicely.
However, these conventional detergents are still unsatisfactory in detergency for heavy oily dirt, particularly those denatured under influences of temperature, humidity, and oxygen.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a detergent composition for hard surfaces (hereinafter simply referred to as hard surface detergent composition) which is excellent in swelling properties and detergency for heavy dirt, such as oil denatured under influences of temperature, humidity, oxygen, etc., and is capable of rapid cleansing.
As a result of extensive investigations, the present inventors have found that the above object of the present invention is accomplished by a detergent composition containing a mixture consisting of at least two polyoxyethylene monophenyl ethers different in degree of polymerization at a specific mixing ratio. The present invention has been completed based on this finding.
The present invention provides a hard surface detergent composition containing (a) a mixture consisting of at least two compounds represented by formula (I): ##STR2## wherein s is an integer of from 1 to 10, representing the number of moles of the ethylene oxide group, which are different in degree of polymerization, the mixture satisfying relationship (1): ##EQU1## wherein Nt is the percent by weight of a compound having t mol of the oxyethylene group added based on the weight of mixture (a).
DETAILED DESCRIPTION OF THE INVENTION
The hard surface detergent composition of the present invention will be illustrated below in greater detail.
The compounds represented by formula (I) which constitute component (a) are polyoxyethylene monophenyl ethers. Component (a) is a mixture of at least two polyoxyethylene monophenyl ethers different in degree of polymer
REFERENCES:
patent: 2889297 (1959-06-01), Brandner et al.
patent: 3829387 (1974-08-01), Wise et al.
patent: 4233174 (1980-11-01), Sheridan
Jin Norikazu
Kubota Masakazu
Nagumo Hiroshi
Tsukuda Kazunori
Boyer Charles
Kao Corporation
Lieberman Paul
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