An ultra-fine particulated polymer latex having an average particle size of 100 nm or less, a crosslinked structure and a glass transition temperature lower than a value calculated by a weight fraction method.  
                            一种超细颗粒聚合物胶乳,其平均粒径为 100 纳米或更小,具有交联结构,
玻璃化转变温度低于按重量分数法计算的值。