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公开(公告)号：US10197714B2
公开(公告)日：2019-02-05
申请号：US15308646
申请日：2015-04-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Shri Niwas , Michael A. McCoy , Ying Xia
Abstract: Retroreflective articles include a layer of optical elements, the layer of optical elements being divided into at least a first segment (110) and second segment (120), and a bead bond layer (170) containing a colorant. The optical elements are partially embedded in the bead bond layer. The optical elements include transparent microspheres (140), a transparent polymeric layer (180), and at least one reflective layer. In the first segment of optical elements, the reflective layer is a dielectric reflective layer (150), and in the second segment of optical elements, the reflective layer is a reflective metallic layer (160). The retroreflective articles have improved wash durability.
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公开(公告)号：US10054724B2
公开(公告)日：2018-08-21
申请号：US15504037
申请日：2015-04-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. McCoy , Daniel J. Schmidt , Shri Niwas , Ying Xia
CPC classification number: G02B5/128 , B29D11/00615 , B82Y30/00 , G02B5/0825 , G02B5/0883
Abstract: An exposed lens retroreflective article (100), transfer articles comprising same, and methods of making same. The retroreflective article can include a binder layer (114); a layer of transparent microspheres (108) partially embedded in the binder layer; and reflective layer (110) disposed between the binder layer and the microspheres. The reflective layer (110) can include a dielectric mirror, which can include a first stack (115) and a second stack (111) positioned in planar contact with the first stack, wherein each of the first stack and the second stack comprises at least one bilayer (119), wherein each bilayer comprises a first material with a first bonding group and a second material with a complementary second bonding group. The transfer article can include the retroreflective article and a carrier web. The method can include partially embedding transparent microspheres in a carrier web; applying the reflective layer to the microspheres, and applying a binder layer composition to the reflective layer.
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公开(公告)号：US20160349416A1
公开(公告)日：2016-12-01
申请号：US15113088
申请日：2015-01-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. McCoy , Shri Niwas
CPC classification number: G02B5/128 , A41D27/085 , B29D11/00615 , B29K2105/16 , B29K2505/14 , B29K2901/12 , B29K2995/003 , G02B5/223
Abstract: Retroreflective articles include a layer of optical elements (110,120,130), embedded in a bead bond layer (140). The optical elements include transparent microspheres (110), at least one colored polymeric layer (120) covering the transparent microspheres, and a reflective layer (130) covering the colored polymeric layer. The polymeric layer includes at least one nanopigment. The transparent microspheres have a diameter range of 80-120 micrometers, with at least 75% of the transparent microspheres having a diameter range of 85-105 micrometers.
Abstract translation: 回射制品包括嵌入胎圈接合层（140）中的一层光学元件（110,120,130）。 光学元件包括透明微球（110），覆盖透明微球的至少一个着色聚合物层（120）和覆盖着色聚合物层的反射层（130）。 聚合物层包括至少一个纳米颜料。 透明微球具有80-120微米的直径范围，至少75％的透明微球的直径范围为85-105微米。
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公开(公告)号：US12099220B2
公开(公告)日：2024-09-24
申请号：US17957098
申请日：2022-09-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kui Chen-Ho , Ann M. Gilman , Kevin W. Gotrik , Scott J. Jones , Daniel M. Lentz , Michael A. McCoy , Shri Niwas , Matthew S. Stay , Ramasubramani Kuduva Raman Thanumoorthy , Ying Xia
CPC classification number: G02B5/128 , A41D31/325
Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the embedded reflective layers are localized reflective layers.
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公开(公告)号：US20220214478A1
公开(公告)日：2022-07-07
申请号：US17605654
申请日：2020-04-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kevin W. Gotrik , Kui Chen-Ho , Graham M. Clarke , Scott J. Jones , Michael A. McCoy , Shri Niwas , David J. Rowe , Tien Yi T.H. Whiting , Ying Xia
IPC: G02B5/128
Abstract: A retroreflective article comprises a binder layer and a plurality of retroreflective elements, each retroreflective element comprising a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements comprise a first locally laminated layer and a second locally laminated layer that may be reflective layers. A transfer article comprises a disposable carrier layer in which the retroreflective article is detachably disposed with at least some of the transparent microspheres in contact with the disposable carrier layer.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20200264351A1
公开(公告)日：2020-08-20
申请号：US15733034
申请日：2018-10-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Michael A. McCoy , Ying Xia , Lok-Man Ng , Shri Niwas , Scott J. Jones , Kevin W. Gotrik , Kui Chen-Ho
Abstract: A retroreflective article including a reflective-particle-containing binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements comprise a primary reflective layer that covers a portion of the embedded surface area of the transparent microsphere, and a secondary reflective layer provided by portions of the reflective-particle-containing binder layer that are adjacent to portions of the embedded surface area of the transparent microsphere that are not covered by the primary reflective layer.
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公开(公告)号：US20200264350A1
公开(公告)日：2020-08-20
申请号：US15733033
申请日：2018-10-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kevin W. Gotrik , Kui Chen-Ho , Scott J. Jones , Michael A. McCoy , Christopher A. Merton , Shri Niwas , Ramasubramani Kuduva Raman Thanumoorthy , Ying Xia
Abstract: A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a reflective layer that is a locally-laminated reflective layer that is embedded between the transparent microsphere and the binder layer. At least some of the locally-laminated reflective layers may be localized reflective layers.
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公开(公告)号：US10386550B2
公开(公告)日：2019-08-20
申请号：US15030290
申请日：2014-10-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bruce H. Edwards , Shri Niwas , Cheryl S. Elsbernd
Abstract: Methods for preparing retroreflective articles include providing a thermoplastic polymeric carrier layer, partially embedding transparent microspheres into the surface of the carrier layer so that the beads partially protrude from the surface of the carrier layer, depositing a metal reflective layer on the microspheres, applying a treatment solution to the metal layer, and applying a bead bond layer to the treated metal layer, to form an intermediate article. Upon removal of the carrier layer, the deposited metal layer not in contact with the surface of the microspheres remains present on the carrier layer, to form retroreflective articles with a discontinuous layer of reflective metal disposed only on the surface of the transparent microspheres.
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公开(公告)号：US10345495B2
公开(公告)日：2019-07-09
申请号：US15537528
申请日：2015-12-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ruby Chakraborty , Cheryl S. Elsbernd , Shri Niwas , Bruce H. Edwards , Chih-Chung Hsu
IPC: G02B5/128 , B32B7/12 , B32B15/082 , G02B5/136
Abstract: Retroreflective article and precursor articles formed during the preparation of the retroreflective articles are provided. Also, methods of making both the precursor articles and the retroreflective articles are provided. The retroreflective articles and the precursor articles contain a reflective layer that includes both a reflective metal and a polymeric blend. The polymeric blend includes both a fluorinated polymer and a (meth)acrylate polymer. The retroreflective articles typically have anti-staining properties, anti-corrosion properties, or both.
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公开(公告)号：US10215894B2
公开(公告)日：2019-02-26
申请号：US15334408
申请日：2015-04-24
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ruby Chakraborty , Cheryl L. S. Elsbernd , Shri Niwas
IPC: G02B5/128 , B29D11/00 , G02B1/14 , B29K101/12 , B29K509/08
Abstract: Retroreflective articles include transparent microspheres (120) protruding from a bead bond layer (140), with reflective metal layers (130) coated on a portion of the transparent microspheres. Retroreflective articles with anti-staining properties have bead bond layers that contain one or more corrosion inhibiting compounds. At least a portion of the one or more corrosion inhibiting compounds migrates through the reflective metal layer to passivate the exposed metal surface of the reflective metal layer.
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