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1. (WO2017062088) PROCESS FOR PREPARING WATERBORNE HEAT SEAL COATING COMPOSITIONS

Pub. No.:    WO/2017/062088    International Application No.:    PCT/US2016/045119
Publication Date: Fri Apr 14 01:59:59 CEST 2017 International Filing Date: Wed Aug 03 01:59:59 CEST 2016
IPC: C09D 123/08
C09J 123/08
C09J 5/06
C08J 3/03
Applicants: DOW GLOBAL TECHNOLOGIES LLC
Inventors: CHEN, Liang
GUO, Yinzhong
Title: PROCESS FOR PREPARING WATERBORNE HEAT SEAL COATING COMPOSITIONS
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.