Cationic-anionic blends for dynamic surface tension reduction

Details Cationic-anionic blends for dynamic surface tension reduction Cationic-anionic blends for dynamic surface tension reduction

2006-08-29

2006-08-29

Shosho, Callie (Department: 1714)

Compositions: coating or plastic

Coating or plastic compositions

Phosphorus or nitrogen containing

C524S186000, C524S236000, C523S160000

Reexamination Certificate

active

07097705

ABSTRACT:
This invention provides water-based compositions, particularly coating, ink, adhesive, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of a mixture of a non-fluorinated anionic compound and a non-fluorinated weak base cationic compound, the mixture demonstrating a dynamic surface tension (DST) which is less than the DST of the individual anionic and cationic compounds and less than 45 dynes/cm, at a concentration of ≦5 wt % in water at 23° C. and 20 bubbles/second or less than 40 dynes/cm at a concentration of ≦0.03M in water at 23° C. and 0.1 bubbles/second according to the maximum-bubble pressure method.

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