Acetylenic diol ethylene oxide/propylene oxide adducts and processes for their manufacture
AssigneeAir Products and Chemicals, Inc.
InventorsKevin Rodney Lassila, Paula Ann Uhrin
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Abstract
This invention provides water-based compositions, particularly coating, ink, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of an acetylenic diol ethylene oxide/propylene oxide adduct of the structure where r and t are 1 or 2, (n+m) is 1 to 30 and (p+q) is 1 to 30. Also disclosed is a method for making random and block EO/PO adducts of acetylenic diols by reacting an acetylenic diol with EO and/or PO in the presence of a trialkylamine or Lewis acid.
Claims23
In a method for applying a water-based composition to a surface to partially or fully coat the surface, the composition containing an inorganic or organic compound and an effective amount of a surfactant for reducing the dynamic surface tension of the composition, the improvement which comprises employing as the surfactant an acetylenic diol ethylene oxide/propylene oxide adduct of the structure
- where r and t are 1 or 2, (n+m) is 1 to 30 and (p+q) is 1 to 30.
An aqueous composition comprising in water an inorganic compound which is a mineral ore or a pigment or an organic compound which is a pigment, a polymerizable monomer, an oligomeric resin, a polymeric resin, a detergent, a herbicide, an insecticide, or a plant growth modifying agent and an effective amount of an acetylenic diol ethylene oxide/propylene oxide adduct for reducing the dynamic surface tension of the composition, the acetylenic diol ethylene oxide/propylene oxide adduct having a structure according to the formula:
- where r and t are 1 or 2, (n+m) is 1.3 to 30 and (p+q) is 1 to 3.
Dependencies are inferred from the claim text.