| 摘要 |
The present invention is directed to a process for forming a hydrophobically modified emulsion, and the modified emulsion polymer obtained thereby. The emulsion polymer is formed by first combining hydrophobic polymeric compound and alpha , beta -ethylenically unsaturated monomer, to form a mixture and subjecting the mixture to high stress techniques to form surfactant stabilized particles of the hydrophobic polymer and monomers, in the aqueous phase. The alpha , beta -ethylenically unsaturated groups within the particles are co-polymerized to form a hydrophobically modified core polymer. Additional monomers including at least one alpha , beta -ethylenically unsaturated hydrophilic monomer are then added to the core polymer and polymerized by emulsion polymerization, to form a hydrophobically modified emulsion polymer. |
