| 摘要 |
<p>This invention relates to a dispersion of polyhydroxyalkanoate (PHA) particles that improves the stability of the PHA and simplifies the process of making the dispersions. The invention relates to a composition of polyhydroxyalkanoate (PHA) particles in water and at least one water-soluble copolymeric dispersant, wherein the dispersant contains a plurality of repeating units, wherein the units include at least one PHA-compatible unit and at least one hydrophilic unit, and to process for producing the composition. In one embodiment, the process comprises dissolving the PHA in a liquid of low water solubility, emulsifying the resulting solution in an aqueous solution of the dispersant, and removing the liquid. The invention also relates to a process for making a PHA latex which comprises producing a biomass containing PHA particles and non-PHA cell material (NPCM), solubilising the NPCM, removing the solubilised NPCM, and suspending the PHA particles in an aqueous solution of the dispersant.</p> |
