Dimethylsulfoxide formulation in mixture with additive for lowering the crystallization point of same, and applications of said mixture
AssigneeArkema France
InventorsJean-Pierre Lallier, Fabienne LeVilain
Life of this patent
Estimating the term…
Abstract
Use of at least one diol and/or of at least one triol as a dimethyl sulfoxide (DMSO) additive for lowering the crystallization point thereof. The DMSO formulation is used in combination with the abovementioned additive as a paint-stripping composition, a surface-cleaning composition, a graffiti-cleaning composition, a surface-cleaning composition in the microelectronics field, such as a photoresist stripper, a DMSO-based agrochemical composition, or as a constituent of an abovementioned composition, as a polymer-dissolving solvent, or as a constituent of a composition that is useful in the field of cosmetology or pharmacy.
Claims7
1-8. (canceled)
Composition for stripping paints or for cleaning surfaces or graffiti, characterized in that it comprises, per 100 parts by weight of (A)+(B):
- (A) 10 to 50 parts by weight of a formulation comprising:
- (a) 75 to 100 parts by weight of diol and/or triol;
- (b) 0 to 15 parts by weight of water;
- and
- (c) 0 to 10 parts by weight of sodium chloride, wherein sodium chloride is present only if water is present;
- and
- (B) 90 to 50 parts by weight of at least one cosolvent selected from the group consisting of aprotic cosolvents of moderate polarity, ketones, and esters,
- and, optionally additives, selected from the group consisting of activators, thickeners, softeners and surfactants.
10-14. (canceled)
Dependencies are inferred from the claim text.