公开(公告)号：US20240383241A1

公开(公告)日：2024-11-21

申请号：US18669840

申请日：2024-05-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen A. Johnson ,  Derek W. Patzman ,  Richard Yufeng Liu ,  Victor Ho ,  Timothy J. Hebrink ,  Kevin T. Huseby ,  John F. VanDerlofske, III ,  John P. Purcell ,  William T. Fay ,  James B. Svacha ,  Richard J. Thompson ,  Timothy J. Lindquist ,  Kristopher J. Derks

IPC: B32B27/08 ,  B32B7/02 ,  B32B27/32 ,  B32B27/36 ,  B32B37/26 ,  B32B38/00

Abstract: Multi-layer films, and processes to make the films, that enable the delivery of a substrate featuring a peelable thin layer of low haze, amorphous, isotropic film with the desired properties of high modulus, high usage temperature, UV blockage, and toughness. The films are made using a co-extrusion, co-orientation and annealing process to enable the delivery of a thin isotropic, UV blocking layer on top of a release layer and support substrate. These film constructions can be kept together during additional processing steps such as coating and converting. The release and dimensionally stable substrate layer can be easily removed once processing steps are completed.

公开(公告)号：US20240151889A1

公开(公告)日：2024-05-09

申请号：US18548438

申请日：2022-02-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kevin T. Huseby ,  Stephen A. Johnson ,  Samuel A. Minno ,  Lin Zhao ,  William T. Fay ,  Robert L. Brott ,  Gilles J-B Benoit

IPC: G02B5/30 ,  G02B5/08

CPC classification number: G02B5/305 ,  G02B5/0841

Abstract: A multilayer optical film includes a plurality of optical repeat units. Each of the optical repeat units includes at least four sequentially arranged first through fourth layers including first and third layers having respective f-ratios f1 and f3. The optical film has a first order reflection band having a reflection peak height Rp1 and any second order reflection band has a reflection peak height Rp2, where Rp1/Rp2≥5. Rp1/Rp2 may remain at least 5 when changing at least one of the f-ratios f1 and f3 continuously by 0.2. A thickness of each of the second and fourth layers can be less than a thickness of each of the first and third layers by at least a factor of 2, or a thickness of a same one of the first and third layers can differ from a thickness of each other layer by at least a factor of 2.5.

公开(公告)号：US20220098363A1

公开(公告)日：2022-03-31

申请号：US17433950

申请日：2020-03-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jeffrey A. Peterson ,  Maria A. Appeaning ,  Christopher P. Gerlach ,  David J. Kinning ,  Madison P. Bennett ,  Marie A. Boulos ,  Anna M. Clausen ,  Victor Ho ,  Kevin T. Huseby ,  Stephen A. Johnson ,  Scott M. LeBow

IPC: C08G63/91 ,  C08K5/5435 ,  C08K5/3492 ,  C09J7/38 ,  C09J7/40

Abstract: Uncured aqueous composition comprising surfactant and a blend of (a) a first sulfonated polyester having a glass transition temperature not greater than 75° C. that is not sulfonated polyethylene naphthalate, (b) a second, sulfonated polyester that is a sulfonated polyethylene naphthalate, (c) melamine-formaldehyde crosslinker, and (d) an epoxy silane coupling agent; and cured composition thereof. Compositions described herein are useful, for example, for making primed film for release liners applications.

公开(公告)号：US20210302633A1

公开(公告)日：2021-09-30

申请号：US17260509

申请日：2019-08-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kevin T. Huseby ,  Michael Benton Free ,  Victor Ho ,  Stephen A. Johnson ,  Christopher W. A. Krohe

IPC: G02B5/23 ,  G02C7/10 ,  C09K9/02 ,  C08J5/18

Abstract: Photochromic article having first and second opposed major surfaces comprising a first, transparent layer having first and second opposed major surfaces, the first layer comprising thermoplastic, a second, transparent layer having first and second opposed major surfaces, the second layer comprising photochromic dye and amorphous copolyester, wherein the first major surface of the second layer is adjacent to the second major surface of the first layer, and a third layer having first and second opposed major surfaces, wherein the first major surface of the third layer is adjacent to the second major surface of the second layer. Embodiments of photochromic article described herein are useful, for example in eyewear, window films, security films, decorative films, electronic devices (i.e., having a display with a photochromic article).

公开(公告)号：US20200348780A1

公开(公告)日：2020-11-05

申请号：US15733110

申请日：2018-11-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Stephen A. Johnson ,  Derek W. Patzman ,  Richard Y. Liu ,  John F. Van Derlofske ,  Kristopher J. Derks ,  Victor Ho ,  Kevin T. Huseby

IPC: G06F3/041 ,  H01L51/00 ,  H01L51/50

Abstract: A substrate including a self-supporting tri-layer stack is described. The tri-layer stack includes first and second outer layers and a biaxially oriented layer disposed between and in direct contact with the first and second outer layers. The biaxially oriented layer may include a first polyester having greater than 45 mole percent naphthalate units and greater than 45 mole percent ethylene units. Each of the first and second outer layers includes a second polyester which may include 40 to 50 mole percent naphthalate units, at least 25 mole percent ethylene units, and 10 to 25 mole percent of branched or cyclic C4-C10 alkyl units.