公开(公告)号：US10442898B2

公开(公告)日：2019-10-15

申请号：US15766205

申请日：2016-08-02

Applicant: Dow Global Technologies LLC

Inventor： Liang Chen ,  Yinzhong Guo

IPC: C09D123/08 ,  C09J123/08 ,  C09J5/06 ,  C08J3/03

Abstract: A process for preparing a waterborne heat seal coating composition comprising the steps of: a) melt blending ethylene vinyl acetate copolymer, at least one tackifier, and optionally a surfactant in a mixing and conveying zone to form a melt blend; b) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and optionally a surfactant in an emulsification zone to form a dispersion; and c) diluting the dispersion with water in a dilution zone to form the waterborne heat seal coating composition wherein the process is a continuous process, is disclosed.