公开(公告)号：US20230365841A1

公开(公告)日：2023-11-16

申请号：US18247988

申请日：2021-10-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter M. Simone ,  Jason D. Clapper ,  Mark F. Ellis ,  Hollis Z. Beagi ,  Matthew H. Wessel

IPC: C09J7/38 ,  C09J7/35

CPC classification number: C09J7/385 ,  C09J7/35 ,  C09J2203/326 ,  C09J2301/302 ,  C09J2301/304 ,  C09J2301/416 ,  C09J2301/414 ,  C09J2451/00

Abstract: A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these crosslinkable or crosslinked compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate polymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or significantly increasing in molecular weight. The crosslinked compositions can function as either a pressure-sensitive adhesive composition or a heat bondable adhesive composition and are particularly well suited for use in electronic devices.

公开(公告)号：US20240101809A1

公开(公告)日：2024-03-28

申请号：US17754884

申请日：2020-11-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter M. Simone ,  Jason D. Clapper ,  Mark F. Ellis ,  Hollis Z. Beagi ,  Matthew H. Wessel

IPC: C08L33/08 ,  C09J7/35 ,  C09J7/38 ,  C09J133/08

CPC classification number: C08L33/08 ,  C09J7/35 ,  C09J7/385 ,  C09J133/08 ,  C09J2203/326

Abstract: A crosslinkable composition, a crosslinked composition formed upon exposure of the crosslinkable composition to ultraviolet radiation or ionizing radiation, articles containing these compositions, and methods of making the articles are described. The crosslinkable compositions contain two different (meth)acrylate copolymers and can be applied to a substrate using an extrusion process. While being extruded, the crosslinkable compositions advantageously are resistant to crosslinking and/or increased molecular weights. The crosslinked compositions can function as adhesive compositions that are particularly well suited for use in electronic devices.

公开(公告)号：US20240093068A1

公开(公告)日：2024-03-21

申请号：US18269727

申请日：2021-12-23

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bryan T. Whiting ,  Kevin M. Lewandowski ,  James A. Bergman ,  Peter M. Simone

IPC: C09J11/06 ,  C07C275/10 ,  C07C275/14 ,  C08F220/18 ,  C09J7/24 ,  C09J7/25 ,  C09J7/38 ,  C09J133/08

CPC classification number: C09J11/06 ,  C07C275/10 ,  C07C275/14 ,  C08F220/1808 ,  C09J7/245 ,  C09J7/255 ,  C09J7/385 ,  C09J133/08 ,  C09J2301/124 ,  C09J2301/302 ,  C09J2301/408 ,  C09J2301/416 ,  C09J2427/006 ,  C09J2433/00 ,  C09J2467/006

Abstract: Acrylic pressure-sensitive adhesive (“PSA”) compositions crosslinked with a small-molecule crosslinker containing a single, thermally reversible moiety represented by the structure (I) (Formula I)). wherein each R1 is independently —H or —CH3, each X is independently C2-C6 alkyl, and each R2 is independently a C1-C6 alkyl group or an aromatic group. Under high temperature conditions the crosslinks may be broken, thus allowing for good coating and dispensing of the PSA. Upon cooling, the crosslinks reform to create a gelled PSA network without need of additional post-processing curing steps.

公开(公告)号：US11118088B2

公开(公告)日：2021-09-14

申请号：US15733208

申请日：2018-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David J. Yarusso ,  Ross E. Behling ,  Peter M. Simone ,  Chaodi Li ,  Zhong Chen ,  Sharon Wang ,  Jingjing Ma ,  Eric D. Shockey

IPC: C09J7/38 ,  C09J133/08

Abstract: An adhesive article including: a flexible backing; a first cushion layer permanently bonded to a first surface of the flexible backing, wherein the first cushion layer: has an average thickness of at least 10 micrometers; and includes an acrylate pressure-sensitive adhesive having a Fox Tg of up to −30° C., wherein the acrylate pressure-sensitive adhesive includes a (meth)acrylate copolymer; and a first continuous shell layer adjacent the first cushion layer, wherein: the first continuous shell layer has an average thickness of up to 25 micrometers; the ratio of the first cushion layer average thickness to the first shell layer average thickness is at least 2:1; the first continuous shell layer includes an adhesive having a Fox Tg of −20° C. to +50° C.; and the first continuous shell layer adhesive includes a copolymer having a weight average molecular weight of at least 100,000 Daltons.

公开(公告)号：US20200369926A1

公开(公告)日：2020-11-26

申请号：US15733208

申请日：2018-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David J. Yarusso ,  Ross E. Behling ,  Peter M. Simone ,  Chaodi Li ,  Zhong Chen ,  Sharon Wang ,  Jingjing Ma ,  Eric D. Shockey

IPC: C09J7/38 ,  C09J133/08

Abstract: An adhesive article including: a flexible backing; a first cushion layer permanently bonded to a first surface of the flexible backing, wherein the first cushion layer: has an average thickness of at least 10 micrometers; and includes an acrylate pressure-sensitive adhesive having a Fox Tg of up to −30° C., wherein the acrylate pressure-sensitive adhesive includes a (meth)acrylate copolymer; and a first continuous shell layer adjacent the first cushion layer, wherein: the first continuous shell layer has an average thickness of up to 25 micrometers; the ratio of the first cushion layer average thickness to the first shell layer average thickness is at least 2:1; the first continuous shell layer includes an adhesive having a Fox Tg of −20° C. to +50° C.; and the first continuous shell layer adhesive includes a copolymer having a weight average molecular weight of at least 100,000 Daltons.

公开(公告)号：US20200332152A1

公开(公告)日：2020-10-22

申请号：US15733216

申请日：2018-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter M. Simone ,  David J. Yarusso ,  Ross E. Behling ,  Matthew R. D. Smith ,  Ann M. Gilman ,  Chaodi Li ,  Zhong Chen ,  Sharon Wang ,  Jingjing Ma

IPC: C09J7/38 ,  B32B7/12 ,  B32B3/16

Abstract: An adhesive article including: a flexible backing; a first cushion layer permanently bonded to a first surface of the flexible backing, wherein the first cushion layer: has an average thickness of at least 10 micrometers; and includes an acrylate pressure-sensitive adhesive having a Fox Tg of up to −30° C., wherein the acrylate pressure-sensitive adhesive includes a (meth)acrylate copolymer; and a first discontinuous shell layer adjacent the first cushion layer, wherein: the first discontinuous shell layer has an average thickness of up to 25 micrometers; the ratio of the first cushion layer average thickness to the first shell layer average thickness is at least 2:1; the first discontinuous shell layer includes an adhesive having a Fox Tg of +10° C. to +50° C.; and the first discontinuous shell layer adhesive includes a copolymer having a weight average molecular weight of at least 100,000 Daltons.