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    AMORPHOUS COPOLYESTER RESIN FOR INDUSTRIAL COATINGS AND METHODS FOR COATING A METAL SURFACE USING SUCH COATING COMPOSITIONS
    1.
    发明公开
    AMORPHOUS COPOLYESTER RESIN FOR INDUSTRIAL COATINGS AND METHODS FOR COATING A METAL SURFACE USING SUCH COATING COMPOSITIONS 审中-公开

    公开(公告)号：US20230257624A1

    公开(公告)日：2023-08-17

    申请号：US18015013

    申请日：2021-07-07

    申请人： Bostik, Inc.

    发明人： Joshua HARJU ,  Deepa PUTHANPARAMBIL

    IPC分类号： C09D167/02 ,  C08G63/189 ,  C08G63/199

    CPC分类号： C09D167/02 ,  C08G63/189 ,  C08G63/199

    摘要： A copolyester resin comprises the reaction product of at least two aliphatic diols and at least two aromatic diacids or diesters comprising a naphthalene-based monomer and terephthalic-based monomer and has a glass transition temperature between about 65° C. and about 95° C. A coating comprises a copolyester resin comprising the reaction product of at least two aliphatic diols and at least one aromatic diacid or diester comprising the naphthalene-based monomer; a cross-linker; and metal catalyst. The coating composition may be solvated and provides excellent retort resistance, flexibility, chemical resistance, and ability to bond to metal substrates, including tin-plated steel. The copolyester resin may be food grade compliant and alcohol compliant, making it suitable for use as a can coating, especially for beverages and even alcoholic beverages with no restrictions on the alcohol content.

    EXTRUDABLE ANTIFOG COPOLYESTER HEAT SEAL RESINS
    2.
    发明申请
    EXTRUDABLE ANTIFOG COPOLYESTER HEAT SEAL RESINS 有权

    公开(公告)号：US20220153004A1

    公开(公告)日：2022-05-19

    申请号：US17665720

    申请日：2022-02-07

    申请人： Bostik, Inc.

    发明人： Deepa PUTHANPARAMBIL

    IPC分类号： B32B27/20 ,  B29C48/08 ,  B29C48/40 ,  B32B27/36

    摘要： A semicrystalline copolyester resin composition formed by twin screw extrusion of various ingredients includes copolyester resins, antiblock, slip and antifog additives. This semicrystalline copolyester resin can be extruded on to PET film or coextruded with PET resin to form clear PET films with antifog properties. These films with antifog properties are produced in a single step without the use of solvent and does not involve any secondary step for coating a separate antifog layer. This minimizes the cost and time required by a converter to make such clear antifog films. These films containing the heat seal copolyester resin can be heat sealed to clear APET trays. Contents within the trays, such as food, can be seen without fogging on the inside of the film that is used to seal the tray. The seals are strong and the peels are smooth giving a very good packaging performance.

    COMPOSTABLE HOT MELT ADHESIVE
    4.
    发明申请
    COMPOSTABLE HOT MELT ADHESIVE 审中-公开

    公开(公告)号：US20200079981A1

    公开(公告)日：2020-03-12

    申请号：US16562748

    申请日：2019-09-06

    申请人： BOSTIK, INC.

    发明人： Monina D. Kanderski ,  Michael D. VITRANO ,  David P. KEULER ,  Deepa PUTHANPARAMBIL ,  Jacqueline M. LAMBERT ,  Brian J. MORROW

    IPC分类号： C09J167/04 ,  C09J141/00 ,  B65D6/00 ,  C09J5/06

    摘要： A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.

    EXTRUDABLE ANTIFOG COPOLYESTER HEAT SEAL RESINS
    6.
    发明申请
    EXTRUDABLE ANTIFOG COPOLYESTER HEAT SEAL RESINS 审中-公开

    公开(公告)号：US20190337274A1

    公开(公告)日：2019-11-07

    申请号：US16474126

    申请日：2018-01-10

    申请人： BOSTIK, INC.

    发明人： Deepa PUTHANPARAMBIL

    IPC分类号： B32B27/20 ,  B32B27/36 ,  B29C48/08 ,  B29C48/40

    摘要： A semicrystalline copolyester resin composition formed by twin screw extrusion of various ingredients includes copolyester resins, antiblock, slip and antifog additives. This semicrystalline copolyester resin can be extruded on to PET film or coextruded with PET resin to form clear PET films with antifog properties. These films with antifog properties are produced in a single step without the use of solvent and does not involve any secondary step for coating a separate antifog layer. This minimizes the cost and time required by a converter to make such clear antifog films. These films containing the heat seal copolyester resin can be heat sealed to clear APET trays. Contents within the trays, such as food, can be seen without fogging on the inside of the film that is used to seal the tray. The seals are strong and the peels are smooth giving a very good packaging performance.