Patent ID: 9228045
Filing Date: 2016-01-05
CPC Classification: B29K,C08F,C08L

Claim Text:
1. A chlorinated vinyl polymer latex, comprising: particles, dispersed in water, of an interpolymer of (i) base particles of a methyl methacrylate polymer seed latex, and of (ii) a chlorinated vinyl polymer formed on the base seed; wherein an average diameter of the particles of the interpolymer, measured by hydrodynamic fractionation, is greater than or equal to 120 nm, and an average diameter of the particles of the methyl methacrylate polymer seed latex, measured by hydrodynamic fractionation, is less than or equal to 60 nm, wherein the particles of the interpolymer have a content of at most 2.0% by weight of the methyl methacrylate polymer seed latex, relative to a total weight of the chlorinated vinyl polymer formed on the base seed, and a particle size distribution of the particles of the interpolymer, as determined by hydrodynamical fractionation is monomodal.