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    WATER-BASED PRESSURE SENSITIVE ADHESIVE COMPOSITIONS AND METHODS OF MAKING SAME
    7.
    发明申请
    WATER-BASED PRESSURE SENSITIVE ADHESIVE COMPOSITIONS AND METHODS OF MAKING SAME 审中-公开

    公开(公告)号：US20200079979A1

    公开(公告)日：2020-03-12

    申请号：US16493829

    申请日：2017-03-13

    Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

    Inventor： Mario De Filippis ,  Miao Yang ,  Cathie Seyfried ,  Zhaohui Qu ,  Isabelle Uhl ,  Melinda L. Einsla ,  Kalyan Sehanobish ,  William B. Griffith, Jr. ,  Vinita Yadav

    IPC: C09J7/38 ,  C09J11/06

    Abstract: Water-based pressure sensitive adhesive compositions are disclosed comprising (a) an acrylic emulsion having a glass transition temperature of less than or equal to 20° C., (b) optionally, a dispersant or a silane-containing compound, and (c) an ethylene or propylene copolymer emulsion. In some embodiments, (a) comprises from 75 to 99 wt % of the compositions, (b), when present, comprises from 0.1 to 5 wt % of the compositions, and (c) comprises from 0.1 to 25 wt % of the composition, each based on the dry weight of the compositions. Methods for preparing water-based pressure sensitive adhesive compositions are also disclosed comprising emulsion polymerizing at least one unsaturated monomer, thereby forming an emulsion polymer having a glass transition temperature of less than or equal to −10° C. and blending the emulsion polymer together with a dispersant or silane-containing compound and an ethylene or propylene copolymer emulsion. Water-based pressure sensitive adhesives and pressure sensitive adhesive films are also disclosed.

    POLYMER DISPERSION COMPOSITION
    10.
    发明申请
    POLYMER DISPERSION COMPOSITION 有权

    公开(公告)号：US20240425630A1

    公开(公告)日：2024-12-26

    申请号：US18700855

    申请日：2022-11-22

    Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

    Inventor： Joseph B. Binder ,  Isabelle Uhl ,  Steve Pham ,  Vesna Daniloska

    IPC: C08F220/18 ,  C08F2/26 ,  C08K5/25 ,  C09J5/04 ,  C09J133/24

    Abstract: A waterborne precursor polymer dispersion composition comprising the reaction product obtained by free-radical emulsion polymerization of a monomer mixture comprising: (A) at least one alkyl (meth)acrylate; and (B) at least one ethylenically unsaturated compound comprising: (Bi) at least one first functional group; wherein the at least one first functional group comprises at least one ethylenically unsaturated group; and (Bii) at least one second functional group; wherein the at least one second functional group comprises at least one functional group different than the ethylenically unsaturated group; wherein the second functional group is capable of reacting with a crosslinker component; and wherein the crosslinker component is not reactive with component (A) in free-radical polymerization; in the presence of: (C) an aqueous medium; and (D) at least one acid surfactant salt with pKaH from 2.6 to 7; a waterborne contact adhesive polymer dispersion composition including a mixture of: (I) the above waterborne precursor polymer dispersion composition and (II) a crosslinker compound for crosslinking with the at least one second functional group, component (Bii); a bonded article including at least two substrates adhered together with the above waterborne contact adhesive polymer dispersion composition; a process for preparing the above waterborne precursor polymer dispersion composition; a process for preparing the above waterborne contact adhesive composition; and a process of bonding two substrates together using the above waterborne contact adhesive composition to form a bonded article.

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