COMPOSITION HAVING POLYOL AND ISOCYANATE

    公开(公告)号:US20230094316A1

    公开(公告)日:2023-03-30

    申请号:US17997685

    申请日:2021-04-23

    Abstract: Provided is a composition comprising one or more multifunctional isocyanate compounds and one or more polyols having a specified structure. Also provided is a method of adhering a first substrate to a second substrate to form an assembled article, wherein the method comprises the steps of applying a layer of the composition to a first surface of the first substrate and then bringing the layer of the composition into contact with a first surface of the second substrate. Also provided is an assembled article made by that method.

    Recyclable laminate
    3.
    发明授权

    公开(公告)号:US12221510B2

    公开(公告)日:2025-02-11

    申请号:US17754521

    申请日:2020-10-01

    Abstract: A polyolefin-based laminating adhesive composition for use in producing a mechanical recyclable material, the adhesive composition including a mixture of: (a) at least one saturated polyolefin polyol; and (b) at least one aliphatic multi-functional isocyanate compound; a process for producing the above adhesive composition; a mechanically recyclable multi-layer laminate including: (A) at least one first film substrate layer; (B) at least one second film substrate layer; and (C) at least one layer of the above polyolefin-based laminating adhesive composition; wherein the at least one first film substrate layer is bonded to the at least one second film substrate layer via the adhesive composition layer; a process for producing the above mechanically recyclable multi-layer laminate; and a packaging article made from the above mechanically recyclable multi-layer laminate.

    TWO-COMPONENT ADHESIVE COMPOSITIONS BASED ON PHOSPHATE ESTER MODIFIED ISOCYANATES, AND METHODS FOR MAKING SAME

    公开(公告)号:US20210024794A1

    公开(公告)日:2021-01-28

    申请号:US17042796

    申请日:2019-01-28

    Abstract: The disclosed adhesive compositions comprise (A) an isocyanate component comprising an isocyanate-terminated prepolymer that is the reaction product of a polyisocyanate and an isocyanate-reactive mixture comprising a phosphate ester polyol. The disclosed adhesive compositions further comprise (B) an isocyanate-reactive component polyol component comprising a polyol. In some embodiments, methods for preparing two-component adhesives formulations are disclosed comprising preparing an isocyanate component comprising an isocyanate-terminated prepolymer by reacting a polyisocyanate with an isocyanate-reactive mixture comprising a phosphate ester polyol and preparing an isocyanate-reactive component comprising a polyol. The methods further comprise mixing the isocyanate component and the isocyanate-reactive component at a stoichiometric ratio (NCO/OH) of from about 1.0 to about 5.0. Methods for forming laminate structures, and the laminate structures themselves, are also disclosed.

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