| 摘要 |
PURPOSE: Provided are compositions which are useful as polymeric additive systems, processes for making polymeric additive systems, further polymeric compositions that include a polymeric component and one or more polymeric additive system, and even further processes for preparing polymeric compositions that include a polymeric component and one or more polymeric additive systems. CONSTITUTION: The polymeric additive system comprises a) a liquid component, and b) a solid component comprising polymeric additive particles which comprise (i) a first population of polymer particles, and (ii) a second population of polymer particles, wherein the mean particle diameter of the first population of polymer particles is at least 50% larger than the mean particle diameter of the second population of particles, and wherein the compositions of the polymer particles in the first and second populations are essentially the same, and wherein the solid component is present in an amount of more than 50 weight percent, and said weight percentage is based on the total weight of the polymeric additive system.
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