Cleaning agents for the outer surfaces of means of transport
View Patent ↗The invention relates to the use of a composition for cleaning the outside of a means of transport. The composition contains component a) at least one tertiary amino oxide of formula R 1 R 2 R 3 NO, whereby R 1 represents an alkylamidoalkyl, alkenylamidoalkyl, alkoxypropylamidoalkyl or alkenylamidoalkyl group having between 8–18 carbon atoms, R 2 and R 3 represent, independently from each other, low molecular alkyl radicals or hydroxyethyl radicals or hydroxypropyl radicals, and component b) at least one alkali metal salt of polyasparaginic acid having a molecular weight of between 5,000 g/mol–50,000 g/mol, or a polyglutaminic acid having a molecular weight of between 5,000 g/mol–50,000 g/mol, or a mixture of both substances, whereby the weight ratio of the components a:b is between 10:1 and 3000:1. The cleaner of the present invention effectively removes dirt and comprises environmentally friendly corrosion inhibitors.
1. A method for cleaning an exterior surface of a selected from the group consisting of automobile, a truck, a train, a streetcar, and an aircraft means of transport composition, said method comprising contacting said means of transport with a composition comprising:
a) at least one tertiary amine oxide of the formula R 1 R 2 R 3 NO, where
R 1 is an alkyl, alkenyl, alkoxypropyl or alkenylamidoalkyl group having 8 to 18 carbon atoms,
R 2 and R 3 independently of one another are of 1 to 6 carbon atoms alkyl radicals of 1 to 6 crabon atoms, or hydroxyethyl hydroxyethyl radicals, and
b) at least one alkali metal salt of an acid selected from the group consisting of a polyaspartic acid, a polyglutamic acid, or a mixture thereof, said acid having a molecular weight of from 5000 g/mol to 50 000 g/mol, wherein a weight ratio of the constituents a):b) is between 10:1 and 3000:1.
2. The method of claim 1 , wherein R 1 is selected from the group consisting of an alkyl, alkenyl, alkoxypropyl, alkenylamido, and mixtures thereof wherein R 1 has 10 to 16 carbon atoms.
3. The method of claim 1 , wherein the molecular weight of b) is from 7000 to 20 000 g/mol.
4. The method of claim 1 , wherein the composition further comprises a compound selected from the group consisting of defoamers, dyes, complexing agents, antioxidants and mixtures thereof.
5. The method of claim 1 wherein the means of transport is an aircraft.