| 摘要 |
An aqueous polymer particle dispersion including at least one first polymer and at least one second polymer, which polymers are mutually incompatible. The first polymer is not cross-linked, it has a glass transition temperature of -25 to +0 DEG C, and it represents 40-65 wt % of the particles. The second polymer is neither alkali-soluble nor cross-linked, it has a glass transition temperature of 5 to 40 DEG C, and it represents 60-35 wt % of the particles. The second polymer has a glass transition temperature no more than 40 DEG C higher than that of the first polymer, and the average particle size is 100-300 nm. Said dispersion is useful for preparing environmentally friendly paints.
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