Paint stripper compositions having reduced toxicity
AssigneeTexo AB
InventorRoland L. Francisco
Life of this patent
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Abstract
A paint stripper and coatings remover composition free of methylene chloride, consisting essentially of effective amounts of benzyl alcohol, an aromatic naphtha and a pyrrolidone, preferably N-methyl 2-pyrrolidone. The composition preferably also contains effective amounts of a thickener, particularly hydroxy propyl methyl cellulose, a wetting agent, preferably dodecyl benzene sulfonate, to facilitate emulsification of the composition with water, and an amine activator, preferably monoethanolamine. The above components are preferably employed in certain ranges of proportions.
Claims13
A paint stripper and coatings remover composition consisting essentially of a mixture of effective amounts of benzyl alcohol, an aromatic naphtha, and a substance selected from the group consisting of N-methyl 2-pyrrolidone and N-vinyl 2-pyrrolidone.
A paint stripper and coatings remover composition free of methylene chloride, and containing, by weight, about 20 to about 50% benzyl alcohol, about 30 to about 70% of a heavy aromatic naphtha, about 10 to about 40% of N-methyl 2-pyrrolidone, about 0.5 to about 2% hydroxy propyl methyl cellulose, and about 0.5 to about 3% dodecyl benzene sulfonate, by weight.
A paint stripper and coatings remover composition consisting essentially of a mixture of effective amounts of benzyl alcohol, an aromatic naphtha, and a substance selected from the group consisting of N-methyl-2-pyrrolidone and N-vinyl 2-pyrrolidone, and further including a surface-active agent for emulsification of said mixture with water.
A paint stripper and coatings remover composition consisting essentially of a mixture of effective amounts of benzyl alcohol, an aromatic naphtha, and a substance selected from the group consisting of N-methyl 2-pyrrolidone and N-vinyl 2-pyrrolidone, and further including an amine activator.
Dependencies are inferred from the claim text.