WO2009051256A1 - Light diffusing agent - Google Patents

Light diffusing agent Download PDF

Info

Publication number
WO2009051256A1
WO2009051256A1 PCT/JP2008/068962 JP2008068962W WO2009051256A1 WO 2009051256 A1 WO2009051256 A1 WO 2009051256A1 JP 2008068962 W JP2008068962 W JP 2008068962W WO 2009051256 A1 WO2009051256 A1 WO 2009051256A1
Authority
WO
WIPO (PCT)
Prior art keywords
light diffusing
properties
light
diffusing agent
resin particles
Prior art date
Application number
PCT/JP2008/068962
Other languages
French (fr)
Japanese (ja)
Inventor
Kiyoshi Yamaguchi
Shigeki Hamamoto
Hirotsugu Kawata
Masayoshi Okubo
Original Assignee
Sumitomo Seika Chemicals Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Seika Chemicals Co., Ltd. filed Critical Sumitomo Seika Chemicals Co., Ltd.
Priority to CN2008801119576A priority Critical patent/CN101849201B/en
Priority to JP2009538192A priority patent/JPWO2009051256A1/en
Publication of WO2009051256A1 publication Critical patent/WO2009051256A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/126—Polymer particles coated by polymer, e.g. core shell structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • C08J2333/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
    • C08J2333/06—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2425/02—Homopolymers or copolymers of hydrocarbons
    • C08J2425/04—Homopolymers or copolymers of styrene

Abstract

This invention provides a light diffusing agent which can provide better light diffusing properties and optical transparency than conventional spherical resin particles and can improve the properties of final products such as screens. The light diffusing agent includes spherical resin particles having a number of recesses on their surfaces and have excellent transparent and optical properties. Accordingly, a light diffusing film using the light diffusing agent has excellent light diffusing properties and total light transmittance. By virtue of the properties, in the light diffusing film, even when scattered light is viewed at any position, a well balance between good light diffusing properties and total light transmittance can be realized. The light diffusing film can widely be utilized, for example, in backlights of liquid crystal display, transmission screens, lighting equipment, and decorative illumination signboards.
PCT/JP2008/068962 2007-10-18 2008-10-20 Light diffusing agent WO2009051256A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008801119576A CN101849201B (en) 2007-10-18 2008-10-20 Light diffusing agent
JP2009538192A JPWO2009051256A1 (en) 2007-10-18 2008-10-20 Light diffusing agent

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-271603 2007-10-18
JP2007271603 2007-10-18

Publications (1)

Publication Number Publication Date
WO2009051256A1 true WO2009051256A1 (en) 2009-04-23

Family

ID=40567515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/068962 WO2009051256A1 (en) 2007-10-18 2008-10-20 Light diffusing agent

Country Status (5)

Country Link
JP (1) JPWO2009051256A1 (en)
KR (1) KR20100087102A (en)
CN (1) CN101849201B (en)
TW (1) TW200930755A (en)
WO (1) WO2009051256A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011068817A (en) * 2009-09-28 2011-04-07 Sekisui Plastics Co Ltd Polystyrene resin composition, polystyrene resin particle, foamable polystyrene resin particle, method for producing the same, polystyrene resin prefoamed particle and polystyrene resin foamed molded article
US9187632B2 (en) 2011-08-25 2015-11-17 Sekisui Plastics Co., Ltd. Non-spherical resin particles, manufacturing method thereof, and use thereof
CN113061267A (en) * 2021-04-08 2021-07-02 华南理工大学 Preparation method of controllable monodisperse anisotropic groove tetrahedral colloidal particles
CN113912890A (en) * 2021-10-14 2022-01-11 宁波东旭成新材料科技有限公司 Preparation method of reflecting film
CN114624921A (en) * 2022-03-11 2022-06-14 纳晶科技股份有限公司 Optical plate, display device comprising same and preparation method of quantum dot optical plate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102456809B (en) * 2010-10-26 2015-09-30 比亚迪股份有限公司 A kind of LED component and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06287244A (en) * 1993-03-30 1994-10-11 Nippon Zeon Co Ltd Golf balll-shaped polymer composite fine particle and its production
JP2001066405A (en) * 1999-08-27 2001-03-16 Keiwa Inc Light diffusing sheet and backlight unit using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3861162B2 (en) * 2000-12-15 2006-12-20 財団法人新産業創造研究機構 Method for producing polymer fine particles having many surface recesses
CN100353187C (en) * 2004-03-29 2007-12-05 株式会社巴川制纸所 Antiglare film

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06287244A (en) * 1993-03-30 1994-10-11 Nippon Zeon Co Ltd Golf balll-shaped polymer composite fine particle and its production
JP2001066405A (en) * 1999-08-27 2001-03-16 Keiwa Inc Light diffusing sheet and backlight unit using same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011068817A (en) * 2009-09-28 2011-04-07 Sekisui Plastics Co Ltd Polystyrene resin composition, polystyrene resin particle, foamable polystyrene resin particle, method for producing the same, polystyrene resin prefoamed particle and polystyrene resin foamed molded article
US9187632B2 (en) 2011-08-25 2015-11-17 Sekisui Plastics Co., Ltd. Non-spherical resin particles, manufacturing method thereof, and use thereof
CN113061267A (en) * 2021-04-08 2021-07-02 华南理工大学 Preparation method of controllable monodisperse anisotropic groove tetrahedral colloidal particles
CN113912890A (en) * 2021-10-14 2022-01-11 宁波东旭成新材料科技有限公司 Preparation method of reflecting film
CN113912890B (en) * 2021-10-14 2022-12-27 宁波东旭成新材料科技有限公司 Preparation method of reflecting film
CN114624921A (en) * 2022-03-11 2022-06-14 纳晶科技股份有限公司 Optical plate, display device comprising same and preparation method of quantum dot optical plate

Also Published As

Publication number Publication date
TW200930755A (en) 2009-07-16
KR20100087102A (en) 2010-08-03
JPWO2009051256A1 (en) 2011-03-03
CN101849201A (en) 2010-09-29
CN101849201B (en) 2013-05-08

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