Methods for preparing waterborne heat seal coating compositions

    公开(公告)号:US11584829B2

    公开(公告)日:2023-02-21

    申请号:US16754435

    申请日:2018-08-23

    Abstract: 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.

    Detergent additive
    29.
    发明授权

    公开(公告)号:US11407965B2

    公开(公告)日:2022-08-09

    申请号:US16632902

    申请日:2018-07-10

    Abstract: A detergent additive comprising an active, the active comprising one or both of tetraacetylethylenediamine or triacetylethylenediamine; and a copolymer having maleic anhydride-based repeat units and either or both of olefinic or styrenic-based repeat units; and wherein at least a portion of the maleic anhydride-based repeat units are neutralized.

    POLYOLEFIN DISPERSION AND EPOXY DISPERSION BLENDS FOR IMPROVED DAMAGE TOLERANCE

    公开(公告)号:US20210301073A1

    公开(公告)日:2021-09-30

    申请号:US16092458

    申请日:2017-11-09

    Abstract: The present invention provides aqueous compositions for making damage tolerant coatings comprising a blend of (i) from 2 to 30 wt. %, based on the total weight of solids in the composition, of an acid or anhydride functionalized polyolefin dispersion having an average particle size of from 0.2 to 5 microns, and (ii) a film forming dispersion of one or more epoxy resins chosen from epoxy resins having an epoxy equivalent weight (EEW) of from 150 to 4,000 having an average particle size of from 0.2 to 1.0 microns, wherein the polyolefin dispersion is stabilized with from 2 to 8 wt. %, based on the total weight of solids in the composition, one or more anionic surfactants, such as a sulfate containing surfactant, and, further wherein, the compositions have a pH of from 3 to 8.

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