Patent ID: 6255393
Filing Date: 2001-07-03
Classification: C08J

Abstract:
An aqueous polymer dispersion, in which particles of grafted polymer (b) are dispersed in water, wherein grafted polymer (b) includes backbone polymer (a) and a hydrocarbon group with not fewer than 8 carbon atoms as a side chain, with the aqueous polymer dispersion being characterized in that:backbone polymer (a) has a weight-average molecular weight of not less than 20,000, wherein backbone polymer (a) is at least one member selected from the group consisting of polyamines and polyols, andthe particles of grafted polymer (b) are finely dispersed in water to have a volume-average particle diameter less than 0.3 pm by a process comprising the step of subjecting the grafted polymer (b) to a finely dispersing treatment together with water.