Solvent mixtures suited for use with wiping cloth on auto bodies
AssigneeHenkel Corporation
InventorChester P. Jarema
Life of this patent
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Abstract
A solvent mixture comprising an alcohol, an aromatic hydrocarbon or an organic compound containing carboxyl but not hydroxyl moieties, and optionally and preferably a non-aromatic hydrocarbon or halohydrocarbon is particularly effective in removing incompletely cured residues of a variety of sealing compounds from the surfaces of automobile bodies, without damaging intermediate or final finish coatings for the automobile bodies. The solvent mixture may advantageously be absorbed in a wiping cloth for convenient use.
Claims8
A liquid solvent mixture composition of matter that is suitable for use as an absorbate in a wiping cloth for removing automotive sealer compounds from undesired locations on automobile bodies, said composition comprising:
- from about 69 to about 75% of ethanol;
- an amount of n-propyl acetate, t-butyl acetate, or a mixture of n-propyl acetate and t-butyl acetate that has a ratio to the amount of ethanol that is in the range from about 0.30:1.0 to about 0.38:1.0;
- and
- an additional component (C) selected from the group consisting of molecules that:
- contain no atoms other than carbon and hydrogen;
- contain no aromatic ring;
- contain at least two carbon-carbon double bonds;
- and
- in sufficient number, constitute a compound that has a boiling point at normal atmospheric pressure that is at least 175° C.,
- said component (C) being present in the mixture in an amount that has a ratio to the amount of component (A) present in the same mixture that is from about 0.013:1.0 to about 0.075:1.0.
A liquid solvent mixture composition of matter that is suitable for use as an absorbate in a wiping cloth for removing automotive sealer compounds from undesired locations on automobile bodies, said composition having been made by mixing together at least the following components:
- a first mass of ethanol that constitutes from about 69 to about 75% of the total liquid solvent mixture;
- a second mass that consists of n-propyl acetate, t-butyl acetate, or a mixture of n-propyl acetate and t-butyl acetate and has a ratio to said first mass that is in the range from about 0.30:1.0 to about 0.38:1.0;
- and
- a third mass of a component (C) selected from the group consisting of molecules that:
- contain no atoms other than carbon and hydrogen;
- contain no aromatic ring;
- contain at least two carbon-carbon double bonds;
- and
- in sufficient number, constitute a compound that has a boiling point at normal atmospheric pressure that is at least 175° C.,
- said third mass having a ratio to said first mass that is from about 0.013:1.0 to about 0.075:1.0.
Dependencies are inferred from the claim text.