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    STRETCH-RELEASABLE TAPES
    1.
    发明申请
    STRETCH-RELEASABLE TAPES 审中-公开

    公开(公告)号：WO2020234705A1

    公开(公告)日：2020-11-26

    申请号：PCT/IB2020/054587

    申请日：2020-05-14

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： DEVOLDER, Ross J. ,  KUDUVA RAMAN THANUMOORTHY, Ramasubramani ,  ANDERSON, Jonathan J. ,  TRAINOR, Sierra V.

    IPC: C09J7/38 ,  C09J7/24

    Abstract: Constructions which may be useful as stretch-release tapes comprise: a first pressure sensitive adhesive (PSA) layer; a support layer; and a second pressure sensitive adhesive (PSA) layer; wherein the support layer comprises: 55-95 wt% of an olefinic copolymer of ethylene and alpha-olefin(s) comprising 3-12 carbons; and 5-45 wt% of a first tackifier. Alternately, the support layer comprises: 55-100 wt% of an olefinic copolymer of ethylene and alpha-octene; and 0-45 wt% of a first tackifier. Alternately, the support layer comprises a first tackifier; the first PSA layer comprises a second tackifier; and the second PSA layer comprises a third tackifier; where the first, second, and third tackifiers are the same tackifier. In some embodiments, first and second PSA layers comprise 30-70 wt% of a styrenic copolymer and 30-70 wt% of a tackifier.

    ADHESIVE COMPOSITIONS AND ARTICLES
    4.
    发明申请
    ADHESIVE COMPOSITIONS AND ARTICLES 审中-公开

    公开(公告)号：WO2018116067A2

    公开(公告)日：2018-06-28

    申请号：PCT/IB2017/057845

    申请日：2017-12-12

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： CHASTEK, Thomas Q. ,  WAID, Robert D. ,  WANG, Shujun J. ,  DEVOLDER, Ross J. ,  ECKHARDT, Doreen

    IPC: C09J7/38 ,  C09J7/26 ,  C09J153/02

    Abstract: Pressure-sensitive adhesive compositions and articles that include a layer of the pressure-sensitive adhesive compositions are provided. The pressure-sensitive adhesive compositions are particularly well suited for use with substrates that have been considered to have difficult to bond to surfaces such as those routinely encountered in the automotive industry. For example, the pressure-sensitive adhesive can be adhered to clear coat compositions, painted surfaces, and various polymeric materials having low energy surfaces (e.g., surfaces having a surface energy no greater than 35 dynes per centimeter).

    THIN FOAM TAPES
    6.
    发明申请
    THIN FOAM TAPES 审中-公开

    公开(公告)号：WO2018109605A1

    公开(公告)日：2018-06-21

    申请号：PCT/IB2017/057554

    申请日：2017-11-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： DEVOLDER, Ross J.

    IPC: C08J9/32 ,  C09J7/38 ,  C09J7/26

    Abstract: A thin foam layer is provided comprising: a) a polymeric matrix; and dispersed therein b) expanded polymeric microspheres comprising a polymeric shell and a hollow interior; wherein the thin foam layer has a thickness of less than 325 microns, in some embodiments less than 200 microns, or in some embodiments less than 110 microns, and the expanded polymeric microspheres have an average diameter of less than 100 microns, or in some embodiments less than 50 microns. In some embodiments the thin foam layer comprises greater than 0.7 wt% expanded polymeric microspheres, and in some greater than 1.0 wt%. The present disclosure additionally provides tapes comprising the thin foam layer of the present disclosure.

    ACRYLIC RUBBER FOAM AND DOUBLE-SIDED ADHESIVE TAPE COMPRISING SAME
    7.
    发明申请
    ACRYLIC RUBBER FOAM AND DOUBLE-SIDED ADHESIVE TAPE COMPRISING SAME 审中-公开
    丙烯酸橡胶泡沫和包含它的双面粘合胶带

    公开(公告)号：WO2017205444A1

    公开(公告)日：2017-11-30

    申请号：PCT/US2017/034124

    申请日：2017-05-24

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： KIM, Seongwoo ,  SEO, Yong Seok ,  CHO, Do-Kwang ,  KIM, You-Hoon ,  SATRIJO, Andrew ,  DEVOLDER, Ross J.

    IPC: C09J7/02

    Abstract: The present invention relates to a double-sided adhesive tape used for applications including the attachment of front glass for mobile devices. A core layer of the double-sided adhesive tape is prepared by adding an acrylic elastomer free of carbon-carbon double bonds while being highly miscible with an acrylic resin to an acrylic monomer(s) and performing curing, and thus can improve the impact resistance of the final double-sided adhesive tape. Also, the core layer may take a form of foam due to the introduced filler such as glass bubbles or organic microspheres, and thus can further contribute to improving the impact resistance of the final double-sided adhesive tape.

    Abstract translation: 本发明涉及一种用于包括移动设备的前玻璃的附接的应用的双面胶带。 双面粘合带的芯层通过在与丙烯酸类树脂高度混溶的同时向丙烯酸类单体中添加不含碳 - 碳双键的丙烯酸类弹性体并进行固化来制备，从而可以提高耐冲击性 的最终双面胶带。 另外，由于引入的填充物例如玻璃泡或有机微球体，芯层可以采取泡沫形式，因此可以进一步有助于提高最终双面胶带的耐冲击性。

    ELECTRONIC DEVICE WITH REMOVABLE COMPONENT
    8.
    发明申请
    ELECTRONIC DEVICE WITH REMOVABLE COMPONENT 审中-公开

    公开(公告)号：WO2021171258A1

    公开(公告)日：2021-09-02

    申请号：PCT/IB2021/051638

    申请日：2021-02-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： DEVOLDER, Ross J. ,  KUDUVA RAMAN THANUMOORTHY, Ramasubramani ,  ANDERSON, Jonathan J. ,  TRAINOR, Sierra V.

    IPC: C09J7/38

    Abstract: An electronic device having a battery or other component coupled thereto with a thin, sub-100μm stretch-release tape construction. Tape constructions which may be useful as stretch-release tapes comprise: a first pressure sensitive adhesive (PSA) layer; a support layer; and a second pressure sensitive adhesive (PSA) layer; wherein the support layer comprises: 55-95 wt% of an olefinic copolymer of ethylene and alpha-olefin(s) comprising 3-12 carbons; and 5-45 wt% of a first tackifier. Alternately, the support layer comprises: 55-100 wt% of an olefinic copolymer of ethylene and alpha-octene; and 0-45 wt% of a first tackifier. Alternately, the support layer comprises a first tackifier; the first PSA layer comprises a second tackifier; and the second PSA layer comprises a third tackifier; where the first, second, and third tackifiers are the same tackifier. In some embodiments, first and second PSA layers comprise 30-70 wt% of a styrenic copolymer and 30-70 wt% of a tackifier.

    CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE
    10.
    发明申请
    CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE 审中-公开

    公开(公告)号：WO2019164678A1

    公开(公告)日：2019-08-29

    申请号：PCT/US2019/017162

    申请日：2019-02-08

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： NYARIBO, Eric O. ,  CHASTEK, Thomas Q. ,  WAID, Robert D. ,  DEVOLDER, Ross J. ,  YOUNG, Jacob D. ,  WEST, Shaun M. ,  BELKIN, Mikhail A. ,  DINGELDEIN, Joseph C. ,  ESCH, Jay A. ,  NAPIERALA, Mark E.

    IPC: D01F8/00 ,  B29C67/00 ,  B33Y30/00

    Abstract: The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.

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