公开(公告)号：US20170190965A1

公开(公告)日：2017-07-06

申请号：US15313671

申请日：2015-05-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kenton D. BUDD ,  Neeraj SHARMA ,  Bill H. DODGE ,  Daimon K HELLER ,  Michael A. HAASE ,  Mahmut AKSIT

IPC: C09K11/02 ,  C09K11/88

CPC classification number: C09K11/02 ,  C09K11/025 ,  C09K11/883 ,  H01L33/502

Abstract: Particles comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprise up to 40 volume percent, and wherein the coating has an average thickness up to 5 micrometers; and method of making the particles. Particles described here are useful, for example, to make articles (e.g., film).

公开(公告)号：US20180371313A1

公开(公告)日：2018-12-27

申请号：US16066845

申请日：2016-12-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Mahmut AKSIT ,  Kenton D. BUDD ,  Neeraj SHARMA

IPC: C09K11/02 ,  C09K11/88

Abstract: Composite particles comprising quantum dot light emitters, a nonvolatile liquid ligand system, and hydrolyzed organometallic metal oxide precursor, wherein the quantum dot light emitters and the nonvolatile liquid ligand system are collectively present in the composite particles in an amount of at least 30 weight percent. Composite particles described herein are useful, for example, in films (e.g., remote phosphor diffuser films). Remote phosphor diffuser films are useful, for example, in LCD displays.

公开(公告)号：US20190016952A1

公开(公告)日：2019-01-17

申请号：US16066604

申请日：2016-12-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zai-Ming QIU ,  Kenton D. BUDD ,  Mahmut AKSIT ,  Neeraj SHARMA ,  Joseph M. PIEPER

IPC: C09K11/02 ,  C09K11/88 ,  C08G75/045 ,  C08K9/02 ,  C08K3/30

Abstract: Article comprising composite particles in an organic polymer matrix comprising a cured thiol-alkene resin having a Tg>20° C., the composite particles comprising a hydrophobic nonmetallic inorganic matrix, ligands, and quantum dots, wherein the hydrophobic nonmetallic inorganic matrix is present in the composite particles in an amount of up to 40 volume percent. Exemplary articles described herein can be made for use for display applications such as films, LED caps, LED coatings, LED lenses, and light guides. Exemplary articles described herein can be made for use for non-display applications such as security applications where quantum dot phosphors are used to provide fluorescence at selected or tailored wavelengths. In such uses, the organic polymer matrix could be a label or a coating on a label, or other articles such as a card or tag.