Hyperbranched polycarbonates for solubilizing poorly soluble active substances
AssigneeBASF SE
InventorsHolger Tuerk, Monika Haberecht, Michael Ishaque, Hiroe Yamada, Daniel Schoenfelder, Bernd Bruchmann
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Abstract
The present invention provides a composition comprising an amphiphile and an active ingredient whose solubility in water at 20° C. is not more than 10 g/L. Likewise provided is an amphiphile comprising a hyperbranched polycarbonate which is joined to at least one linear or comb-type polymer, a process for preparing the amphiphile, and the use of the amphiphile in compositions comprising an active ingredient whose solubility in water at 20° C. is not more than 10 g/L.
Claims16
A composition comprising an amphiphile and an active agrochemical ingredient whose solubility in water at 20° C. is not more than 10 g/L, wherein the amphiphile comprises a hyperbranched polycarbonate which is joined to at least one linear or comb-type polymer, the linear polymer being
- b) a block polymer comprising a block of polyethylene glycol, or
- c) a polycondensate or polyaddition product comprising polyethylene glycol, or
- d) a polyethylene glycol,
- the polyethylene glycol d) being joined to the polycarbonate via a linker, and
- wherein the linker is selected from toluene 2,4-diisocyanate, toluene 2,6-diisocyanate, 2,4-diphenylmethane diisocyanate, cis- and trans-isophorone diisocyanate, or mixtures of these compounds;
- and
- wherein the polycarbonate comprises an alcohol (B1) which is a polyetherol based on alcohols selected from glycerol, trimethylolethane, trimethylolpropane, 1,2,4-butanetriol, 1,2,3-hexanetriol, 1,2,4-hexanetriol, pentaerythritol, or mixtures thereof, and the polyetherol comprises 3 to 20 propylene oxide units in polymerized form.
An amphiphile comprising a hyperbranched polycarbonate which is joined to at least one linear or comb-type polymer, wherein the linear polymer is
- b) a block polymer comprising a block of polyethylene glycol,
- c) a polycondensate or polyaddition product comprising polyethylene glycol, or
- d) a polyethylene glycol,
- the polyethylene glycol d) being joined to the polycarbonate via a linker,
- wherein the linker is selected from toluene 2,4-diisocyanate, toluene 2,6-diisocyanate, 2,4-diphenylmethane diisocyanate, cis- and trans-isophorone diisocyanate, or mixtures of these compounds;
- and
- wherein the polycarbonate comprises an alcohol (B1) which is a polyetherol based on alcohols selected from glycerol, trimethylolethane, trimethylolpropane, 1,2,4-butanetriol, 1,2,3-hexanetriol, 1,2,4-hexanetriol, pentaerythritol, or mixtures thereof, and the polyetherol comprises 3 to 20 propylene oxide units in polymerized form.
Dependencies are inferred from the claim text.