水性ヒートシールコーティング組成物を調製するための方法

Japanese Patent JP7264891

B2

Methods for preparing waterborne heat seal coating compositions are disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a first mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the second mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the second mixing apparatus to form the waterborne heat seal coating composition. Methods for preparing waterborne heat seal coating compositions are also disclosed, including (A) melt blending an ethylene vinyl acetate copolymer, a tackifier, and a wax in a mixing and conveying zone of a mixing apparatus to form a melt blend, (B) contacting the melt blend with an initial aqueous stream comprising a neutralizing agent, water, and a surfactant in an emulsification zone of the mixing apparatus to form a dispersion, and (C) diluting the dispersion with water in a dilution zone of the mixing apparatus to form the waterborne heat seal coating composition, wherein the length-to-diameter ratio of the extruder mixing apparatus is greater than or equal to 12 to 1. Waterborne heat seal coating compositions prepared according to the disclosed methods are also disclosed.

Escobar Marin, Carlos A.
Chowdhary, Amit Kaye.
Kuo, Incheon
Lipovsky, James M.
Shigan, Ludwig S.
Chen, Liang

JP2020524332A

April 25, 2023

August 23, 2018

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Dow Global Technologies LLC

C09D123/08; C08L31/04; C08L91/06; C09D5/02; C09D7/65; C09D131/04; C09D191/06

JP1004238A
JP2002293948A
JP59004637A

WO2017062088A1
WO2016048947A1
US20130269874

Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Yasuhito Suzuki

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