公开(公告)号：US20180118933A1

公开(公告)日：2018-05-03

申请号：US15565758

申请日：2016-04-16

Applicant: DSM IP ASSETS B.V.

Inventor： Adrianus Antonius Johannes VAN GEEL ,  Franciscus Adrianus Johannes SUYKERBUYK ,  Rajasingham SATGURUNATHAN ,  Gerardus Cornelis OVERBEEK ,  Johannes VAN HILST

IPC: C08L33/08 ,  C09D175/04 ,  C08L33/12 ,  C08L33/10

Abstract: The present invention relates to an aqueous dispersion comprising (i) dispersed particles of vinyl polymer having a volume average particle size diameter (D50) of from 1 to 30 μm (microns); (ii) a partially hydrolysed vinyl acetate (co)polymer in an amount of from 2% to 30% by weight, relative to the total amount of monomers used to prepare the vinyl polymer(s) of the dispersed polymeric particles; and (iii) decomposition products of an oil-soluble organic initiator; wherein at least 95 wt. % of the partially hydrolysed vinyl acetate (co)polymer that is present in the aqueous dispersion has a weight average molecular weight Mw from 25 to 500 kDalton and a hydrolysis degree of from 70 to 95 mol %.