Non-rewetting o/w (oil in water) emulsification system for hydrophobic compounds
AssigneeOrganoclick AB
InventorsJuhanes AYDIN, Salman HASSANZADEH
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Abstract
An emulsified liquid composition is disclosed comprising a hydrophobic phase, an emulsifying composition of a protonated amide and a protonated amine having defined carbon to nitrogen atom molar ratios and water. The compositions optionally comprise at least one of a defoamer, a coalescent agent, a preservative, a co-emulsifier, chain extender, crosslinker and a rheology modifier. The compositions are useful for application to induce hydrophobicity to inorganic, organic or fiber based materials without undesirable backwetting or re-wetting effects.
Claims27
An emulsifying composition comprising:
- a) at least one positively charged organic amide selected from at least one of a polymeric amide and an amide according to the general formula I:
- wherein X1, X2 and X3 are same or different groups, so that the molar ratio of carbon atoms to nitrogen atoms of said at least one amide is 70>C/N≥3, wherein the amide according to the general Formula I is selected from primary, secondary and tertiary amides of saturated or unsaturated, branched or linear acid(s) with total carbon of less than 150 of carbon atoms, and wherein the amide according to the general Formula I is selected from primary, secondary or tertiary amides of saturated or unsaturated, branched or linear acids which are not water soluble at a pH of 1 to 7;
- and
- b) at least one positively charged organic amine selected from at least one of a polymeric amine and an amine according to the general formula II below:
- wherein Y1, Y2, Y3, Y4 and Y5 are same or different groups, so that the molar ratio of carbon atoms to nitrogen atoms of said at least one amine is 70≥C/N≧3, preferably 60≧C/N≧5, and more preferably 50≥C/N≥ 6, and wherein the amine according to the general Formula II is selected from primary, secondary or tertiary amine with total carbon of less than 150 carbon atoms, wherein the amine according to the general Formula II is not water soluble at a pH of 1 to 7, and wherein the amine is selected from primary, secondary or tertiary amines with saturated or unsaturated, branched or linear hydrocarbons chains or wherein the amine is an amine derived from saturated or unsaturated, branched or linear acids;
- and
- a) at least one Lewis acid and/or at least one Brönsted acid selected from Lewis acid from groups 2, 4, 8, 12 and 13 in the periodic table of elements and Brönsted acids with a pka of < 7.
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Dependencies are inferred from the claim text.