Patent ID: 9624333
Date: 2017-04-18
CPC Classifications: C08F,C08L

Claim:
1. A graft copolymer B constructed from: B1: 40 to 85 wt %, based on the solids content of the graft copolymer B, of a graft substrate (B1) obtained by (a) polymerizing: and (b) agglomerating the obtained graft substrate B1 by adding (C): 0.01 to 5 parts by weight, based on 100 parts by weight of the graft substrate B1, in each case based on the solids content, of an agglomerating copolymer (C) of: B2: 15 to 60 wt %, based on the solids content of the graft copolymer B, of a graft sheath obtained by reacting the agglomerated graft substrate B1 with a mixture of: where the graft substrate B1 and the graft sheath B2 sum to 100 wt % in total; and where (i) the agglomerating copolymer (C) has a polydispersity U in the range of from 0.26 to 0.20 and a d (ii) the agglomerated graft substrate B1 has a bimodal particle size distribution of a fraction x) of nonagglomerated particles having a d