CA2517672A1 - Method of making retroreflective sheeting and articles - Google Patents

Method of making retroreflective sheeting and articles Download PDF

Info

Publication number
CA2517672A1
CA2517672A1 CA002517672A CA2517672A CA2517672A1 CA 2517672 A1 CA2517672 A1 CA 2517672A1 CA 002517672 A CA002517672 A CA 002517672A CA 2517672 A CA2517672 A CA 2517672A CA 2517672 A1 CA2517672 A1 CA 2517672A1
Authority
CA
Canada
Prior art keywords
sheeting
channel
cube corner
tool
channels
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002517672A
Other languages
French (fr)
Other versions
CA2517672C (en
Inventor
Kenneth L. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Innovative Properties Co
Original Assignee
3M Innovative Properties Company
Kenneth L. Smith
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32930248&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2517672(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3M Innovative Properties Company, Kenneth L. Smith filed Critical 3M Innovative Properties Company
Publication of CA2517672A1 publication Critical patent/CA2517672A1/en
Application granted granted Critical
Publication of CA2517672C publication Critical patent/CA2517672C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00605—Production of reflex reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves

Abstract

The invention relates to a method of making retroreflective sheeting and other articles prepared from casting a moldable synthetic resin onto a tool having a microstructured surface.

Claims (24)

1. A method of making retroreflective sheeting comprising:
providing a tool comprising a PG cube corner microstructured surface with at least one channel;
advancing the tool in a direction such that the channel is substantially parallel to the direction of the advancing tool;
casting a moldable resin onto said tool surface;
solidifying the resin forming a retroreflective sheet having a surface comprising cube corner elements; and removing the sheet from the tool.
2. The method of claim 1 wherein the cube corner microstructures are cavities.
3. The method of claim 1 wherein the cube corner microstructures are cube corner elements.
4. The method of claim 1 wherein the channel is a primary groove channel.
5. The method of claim 4 wherein the channel comprises a first planar face and second planar face intersecting at a common vertex.
6. The method of claim 1 wherein the channel is a structured channel.
7. The method of claim 6 wherein the channel comprises a first face comprising cube corner faces and second face comprising opposing cube corner faces.
8. The method of claim 6 wherein the channel comprises the intersection of opposing non-dihedral edges of opposing cube corner microstructures.
9. The method of claim 1 wherein the channel is a cube cavity channel.
10. The method of claim 9 wherein the channel comprises a first planar face and a second structured face.
11. The method of claim 9 wherein a replica of the channel provides cube corner elements.
12. The method of claim 10 wherein the first planar face is a replica of a primary groove face.
13. The method of claim 1 wherein the resin is a molten thermoplastic resin.
14. The method of claim 1 wherein the resin is a thermoplastic resin provided in the form of a sheet.
15. The method of claim 1 wherein the resin is provided on a carrier web.
16. A method of making retroreflective sheeting comprising:
providing a tool comprising a cube corner microstructured surface with channels selected from primary groove channels, structured channels, cube cavity channels, and combinations thereof;
advancing the tool in a direction such that the channel is substantially parallel to the direction of the advancing tool;
casting a moldable resin onto said tool surface;
solidifying the resin forming a retroreflective sheet having a surface comprising cube corner elements; and removing the sheet from the tool.
17. Retroreflective sheeting comprising at least one longitudinal peripheral edge and at least one row of PG cube corner microstructures and at least one channel extending substantially parallel to the row; wherein the channel is substantially parallel to the longitudinal peripheral edges of the sheeting.
18. The sheeting of claim 17 wherein the cube corner microstructures are PG
cube corner elements.
19. The sheeting of claim 17 wherein the cube corner microstructures are PG
cube corner cavities.
20. The sheeting of claim 17 wherein the sheeting comprises a thermoplastic resin.
21. The sheeting of claim 17 wherein the longitudinal peripheral edge spans the sheeting in a maximum dimension.
22. The sheeting of claim 17 wherein the sheeting comprises a pair or parallel longitudinal peripheral edges.
23. The sheeting of claim 17 wherein the sheeting is provided in a roll-good.
24. Retroreflective sheeting comprising a pair of longitudinal peripheral edges and rows of cube corner microstructures and channels extending substantially parallel to the rows;
wherein a major portion of the channels are substantially parallel to the longitudinal peripheral edges of the sheeting and the channels are selected from primary groove channels, structured channels, cube cavity channels, and combinations thereof.
CA2517672A 2003-03-06 2004-02-09 Method of making retroreflective sheeting and articles Expired - Fee Related CA2517672C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US45260503P 2003-03-06 2003-03-06
US60/452,605 2003-03-06
US10/404,235 US6884371B2 (en) 2003-03-06 2003-04-01 Method of making retroreflective sheeting and articles
US10/404,235 2003-04-01
PCT/US2004/003683 WO2004080700A1 (en) 2003-03-06 2004-02-09 Method of making retroreflective sheeting and articles

Publications (2)

Publication Number Publication Date
CA2517672A1 true CA2517672A1 (en) 2004-09-23
CA2517672C CA2517672C (en) 2012-07-31

Family

ID=32930248

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2517672A Expired - Fee Related CA2517672C (en) 2003-03-06 2004-02-09 Method of making retroreflective sheeting and articles

Country Status (8)

Country Link
US (8) US6884371B2 (en)
EP (4) EP1610941B1 (en)
JP (4) JP2006520711A (en)
KR (1) KR101089459B1 (en)
CN (1) CN1756648B (en)
BR (2) BRPI0407899B1 (en)
CA (1) CA2517672C (en)
WO (1) WO2004080700A1 (en)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6540367B1 (en) * 1999-04-07 2003-04-01 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
US6884371B2 (en) 2003-03-06 2005-04-26 3M Innovative Properties Company Method of making retroreflective sheeting and articles
EP2442143B1 (en) 2003-03-06 2016-11-23 3M Innovative Properties Co. Lamina comprising cube corner elements and retroreflective sheeting
US7156527B2 (en) 2003-03-06 2007-01-02 3M Innovative Properties Company Lamina comprising cube corner elements and retroreflective sheeting
US7179406B1 (en) * 2004-03-08 2007-02-20 Attar Adil H Method and apparatus for making reflective pavement marker
KR100683965B1 (en) * 2004-10-14 2007-02-15 나노비전 주식회사 An apparatus for separating the prism sheet
MX2007008664A (en) 2005-01-20 2007-09-06 3M Innovative Properties Co Structured polymer films and methods for forming the same.
KR20060085591A (en) * 2005-01-24 2006-07-27 김봉주 Rtro-reflecting unit and retro-reflector therewith
EP3270195B1 (en) 2006-04-18 2023-12-20 3M Innovative Properties Company Microstructured articles comprising nitrogen containing ingredient
EP2047304A1 (en) * 2006-07-17 2009-04-15 Avery Dennison Corporation Method of making an array of aberrated optical elements
JP5091864B2 (en) 2006-08-22 2012-12-05 日本カーバイド工業株式会社 Triangular pyramid cube corner retroreflective article and method for manufacturing the same
KR100840151B1 (en) * 2006-10-25 2008-06-23 미래나노텍(주) Apparatus and method for manufacturing reflective film
JP4611442B2 (en) * 2007-08-24 2011-01-12 日本カーバイド工業株式会社 Cube-corner retroreflective article
WO2009042118A1 (en) * 2007-09-24 2009-04-02 Reflexite Corporation Retroreflective structure with fabric face
CN101420829B (en) * 2007-10-25 2011-09-21 深圳富泰宏精密工业有限公司 Metal case and manufacturing method therefor
EP3260893A3 (en) 2007-11-27 2018-04-11 3M Innovative Properties Co. Methods for forming sheeting with a composite image that floats and a master tooling
KR20090067654A (en) * 2007-12-21 2009-06-25 김봉주 Rtro-reflecting unit and retro-reflector therewith
KR101555818B1 (en) * 2008-01-14 2015-09-25 애버리 데니슨 코포레이션 Retroreflector for use in touch screen applications and position sensing systems
CN102203642A (en) 2008-10-22 2011-09-28 3M创新有限公司 Retroreflective sheeting
KR100917350B1 (en) * 2009-04-02 2009-09-17 주식회사 리플렉셀 Micro prism pattern mold
WO2010121019A1 (en) 2009-04-15 2010-10-21 3M Innovative Properties Company Retroreflecting optical construction
US9291752B2 (en) 2013-08-19 2016-03-22 3M Innovative Properties Company Retroreflecting optical construction
WO2010120845A2 (en) 2009-04-15 2010-10-21 3M Innovative Properties Company Backlight and display system incorporating same
EP2419475B1 (en) 2009-04-15 2017-01-25 3M Innovative Properties Company Process and apparatus for manufacturing a nanovoided article
TWI605276B (en) 2009-04-15 2017-11-11 ３Ｍ新設資產公司 Optical construction and display system incorporating same
US9464179B2 (en) 2009-04-15 2016-10-11 3M Innovative Properties Company Process and apparatus for a nanovoided article
KR101758933B1 (en) 2009-04-15 2017-07-17 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Optical film
CN105690874A (en) 2009-04-15 2016-06-22 3M创新有限公司 Low refractive index layer having a plurality of voids
JP5727460B2 (en) 2009-04-15 2015-06-03 スリーエム イノベイティブ プロパティズ カンパニー Optical film for preventing optical coupling
CN102576119B (en) 2009-10-24 2014-03-26 3M创新有限公司 Light source and display system incorporating same
JP5869494B2 (en) 2009-12-08 2016-02-24 スリーエム イノベイティブ プロパティズ カンパニー Optical structure incorporating light guide and low refractive index film
KR101926406B1 (en) * 2009-12-11 2018-12-07 넥스트 홀딩스 리미티드 Position sensing systems for use in touch screens and prismatic film used therein
KR101954457B1 (en) 2010-04-15 2019-03-05 쓰리엠 이노베이티브 프로퍼티즈 캄파니 Retroreflective articles including optically active areas and optically inactive areas
WO2011129833A1 (en) 2010-04-15 2011-10-20 3M Innovative Properties Company Retroreflective articles including optically active areas and optically inactive areas
EP2558289B1 (en) 2010-04-15 2018-12-26 3M Innovative Properties Company Retroreflective articles including optically active areas and optically inactive areas
US20120050876A1 (en) * 2010-08-30 2012-03-01 Stanley Electric Co., Ltd. Dihedral corner reflector array optical element and method for fabricating the same and display device using the same
US9149959B2 (en) * 2010-10-22 2015-10-06 Monosol Rx, Llc Manufacturing of small film strips
BR112013030706A2 (en) 2011-05-31 2016-12-06 3M Innovative Properties Co Manufacturing Methods of Differentially Cured Microstructured Articles
CN103561927B (en) 2011-05-31 2016-07-27 3M创新有限公司 For the method preparing the microstructured tool with discontinuous shape characteristic and the goods manufactured by described instrument
CN102243326B (en) * 2011-07-02 2013-10-23 浙江道明光学股份有限公司 Equipment for producing reflection film with microprism array structure by using annular strip die
CN102354009B (en) * 2011-07-02 2013-05-08 浙江道明光学股份有限公司 Equipment for producing reflection film with microprism array structure by using cylinder mould
US9050762B2 (en) 2012-03-23 2015-06-09 Orafol Americas Inc. Methods for fabricating retroreflector tooling and retroreflective microstructures and devices thereof
US9700912B2 (en) 2012-06-27 2017-07-11 William K. Leonard Fluid transport media
KR102133964B1 (en) * 2012-12-28 2020-07-15 미래나노텍(주) Retroreflective sheet using cube corner of transformed structure
CN104956242B (en) * 2013-01-28 2020-05-12 3M创新有限公司 Retroreflective sheeting having deformed cube corner elements
WO2014117086A1 (en) 2013-01-28 2014-07-31 Buoni Drew J Metalized microprismatic retroreflective film with improved observation angularity
CA2909614C (en) * 2013-04-22 2021-02-16 Shell Internationale Research Maatschappij B.V. Method and apparatus for producing a liquefied hydrocarbon stream
CN103935056B (en) * 2014-04-28 2016-08-24 田武学 A kind of extrusion molding produces equipment and the method for micro-prism light reflecting film
CN104133259A (en) * 2014-07-04 2014-11-05 西南科技大学 Retroreflection film based on substrate assembly technology
SG11201703902UA (en) 2014-11-20 2017-06-29 Avery Dennison Corp Tiled retroreflector with multi-stage dicing
JP6817191B2 (en) 2015-03-30 2021-01-20 日本製鉄株式会社 Method of joining metal, resin member and carbon fiber reinforced resin member
US9817163B2 (en) * 2015-04-15 2017-11-14 Avery Dennison Corporation Vented tooling belt for production of structured surfaces
FR3040502B1 (en) * 2015-08-28 2018-02-16 Commissariat A L'energie Atomique Et Aux Energies Alternatives SCREEN WITH RETROREFLECTIVE MICROSTRUCTURES
US10690820B2 (en) * 2015-09-25 2020-06-23 Asukanet Company, Ltd. Retroreflector
WO2017156448A1 (en) * 2016-03-11 2017-09-14 Mirraviz, Inc. Customized reflection profiles for retro-reflective display system optimization
US20180156588A1 (en) * 2016-12-07 2018-06-07 Russell LeBlanc Frangible Projectile and Method of Manufacture
US10145672B2 (en) 2017-01-24 2018-12-04 Lithoptek LLC Detection of position, orientation and scale of work pieces using retroreflective surfaces
EP3583453A4 (en) 2017-02-14 2021-03-10 3M Innovative Properties Company Security articles comprising groups of microstructures made by end milling
WO2019046403A1 (en) * 2017-08-29 2019-03-07 Avery Dennison Corporation Retroreflective sheeting for projector-based display system
WO2022046134A1 (en) 2020-08-27 2022-03-03 Aura Optical System, LP Microprismatic retroreflective mold, sheet, and article and methods of manufacture thereof

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US458858A (en) * 1891-09-01 Portable bottom for sofa-beds
US60385A (en) * 1866-12-11 Bbrnakd kemp
US844056A (en) * 1906-01-27 1907-02-12 Samuel Taylor Metallic covering for roofs, walls, and buildings.
US1671086A (en) 1923-07-09 1928-05-22 Jonathan C Stimson Reflecting device
US1809761A (en) 1923-07-09 1931-06-09 Jonathan C Stimson Luminous display or reflector sign
US1591572A (en) * 1925-02-05 1926-07-06 Jonathan C Stimson Process and apparatus for making central triple reflectors
US1743834A (en) 1925-07-29 1930-01-14 Jonathan C Stimson Reflecting device
US3684348A (en) * 1970-09-29 1972-08-15 Rowland Dev Corp Retroreflective material
US3689346A (en) * 1970-09-29 1972-09-05 Rowland Dev Corp Method for producing retroreflective material
US3712706A (en) * 1971-01-04 1973-01-23 American Cyanamid Co Retroreflective surface
US3811983A (en) * 1972-06-23 1974-05-21 Rowland Dev Corp Method for producing retroreflective sheeting
US3926402A (en) * 1973-04-24 1975-12-16 Amerace Corp Pin having nonaligned cube axis and pin axis and bundle of such pins
JPS585402B2 (en) 1974-11-22 1983-01-31 イチコウコウギヨウ カブシキガイシヤ Saikihanshiyaki Oyobi Sonoseikeiyoukanegata
US4025159A (en) * 1976-02-17 1977-05-24 Minnesota Mining And Manufacturing Company Cellular retroreflective sheeting
US4576850A (en) * 1978-07-20 1986-03-18 Minnesota Mining And Manufacturing Company Shaped plastic articles having replicated microstructure surfaces
US4601861A (en) * 1982-09-30 1986-07-22 Amerace Corporation Methods and apparatus for embossing a precision optical pattern in a resinous sheet or laminate
US5156863A (en) * 1982-09-30 1992-10-20 Stimsonite Corporation Continuous embossing belt
US4478769A (en) * 1982-09-30 1984-10-23 Amerace Corporation Method for forming an embossing tool with an optically precise pattern
US4588258A (en) * 1983-09-12 1986-05-13 Minnesota Mining And Manufacturing Company Cube-corner retroreflective articles having wide angularity in multiple viewing planes
US4938563A (en) 1986-11-21 1990-07-03 Minnesota Mining And Manufacturing Company High efficiency cube corner retroflective material
US4775219A (en) 1986-11-21 1988-10-04 Minnesota Mining & Manufacturing Company Cube-corner retroreflective articles having tailored divergence profiles
US5175030A (en) * 1989-02-10 1992-12-29 Minnesota Mining And Manufacturing Company Microstructure-bearing composite plastic articles and method of making
US5183597A (en) * 1989-02-10 1993-02-02 Minnesota Mining And Manufacturing Company Method of molding microstructure bearing composite plastic articles
US5067432A (en) * 1990-05-23 1991-11-26 Extrusion Dies, Inc. Replaceable wiping insert for slot die head
US5138488A (en) 1990-09-10 1992-08-11 Minnesota Mining And Manufacturing Company Retroreflective material with improved angularity
US5117304A (en) * 1990-09-21 1992-05-26 Minnesota Mining And Manufacturing Company Retroreflective article
US5759468A (en) * 1993-10-20 1998-06-02 Minnesota Mining And Manufacturing Company Raised zone retroreflective cube corner article and method of manufacture
US5450235A (en) * 1993-10-20 1995-09-12 Minnesota Mining And Manufacturing Company Flexible cube-corner retroreflective sheeting
JP3590062B2 (en) * 1993-10-20 2004-11-17 ミネソタ マイニング アンド マニュファクチャリング カンパニー Super-flexible retroreflective cube corner composite sheet material and method of manufacturing the same
AU3555095A (en) 1994-09-28 1996-04-19 Reflexite Corporation Retroreflective tilted prism structure
US5565151A (en) 1994-09-28 1996-10-15 Reflexite Corporation Retroreflective prism structure with windows formed thereon
US6143224A (en) * 1995-05-18 2000-11-07 Reflexite Corporation Method for forming a retroreflective sheeting
CN1106252C (en) 1995-07-28 2003-04-23 日本电石工业株式会社 Microprism matrix
KR0167860B1 (en) * 1995-10-23 1999-01-15 히로세 준고 Continuous sheet having optical functions
JP4113981B2 (en) * 1996-01-19 2008-07-09 スリーエム カンパニー Bidirectional retroreflective sheet
US5706132A (en) 1996-01-19 1998-01-06 Minnesota Mining And Manufacturing Company Dual orientation retroreflective sheeting
US6159407A (en) * 1996-01-26 2000-12-12 3M Innovative Properties Company Stacked laminate mold and method of making
US5961846A (en) * 1996-02-28 1999-10-05 Marshfield Medical Research And Education Foundation Concentration of waterborn and foodborn microorganisms
US5840405A (en) 1996-04-30 1998-11-24 Minnesota Mining And Manufacturing Company Glittering cube-corner retroreflective sheeting
US6015214A (en) * 1996-05-30 2000-01-18 Stimsonite Corporation Retroreflective articles having microcubes, and tools and methods for forming microcubes
US6083607A (en) * 1996-10-18 2000-07-04 Nippon Carbide Kogyo Kabushiki Kaisha Triangular pyramidal cube corner type retroreflective sheet
US5889615A (en) * 1997-06-27 1999-03-30 Minnesota Mining And Manufacturing Company Dual axis retroreflective articles
ATE284306T1 (en) * 1997-07-02 2004-12-15 Minnesota Mining & Mfg MOLD FOR CUBE LACES AND METHOD FOR THE PRODUCTION THEREOF
US5981032A (en) * 1997-07-02 1999-11-09 3M Innovative Properties Company Retroreflective cube corner sheeting mold and sheeting formed therefrom
US5898523A (en) * 1997-07-02 1999-04-27 Minnesota Mining & Manufacturing Company Tiled retroreflective sheeting composed of highly canted cube corner elements
US6119751A (en) * 1998-01-26 2000-09-19 Reflexite Corporation Apparatus and method for producing retroreflective material having printed patterns thereon
US6322652B1 (en) * 1998-09-04 2001-11-27 3M Innovative Properties Company Method of making a patterned surface articles
US6280822B1 (en) * 1999-01-11 2001-08-28 3M Innovative Properties Company Cube corner cavity based retroeflectors with transparent fill material
US6287670B1 (en) * 1999-01-11 2001-09-11 3M Innovative Properties Company Cube corner cavity based retroreflectors and methods for making same
US6540367B1 (en) * 1999-04-07 2003-04-01 3M Innovative Properties Company Structured surface articles containing geometric structures with compound faces and methods for making same
EP2264489B1 (en) 1999-04-07 2015-09-23 3M Innovative Properties Company Retroreflective cube corner elements comprising faces that are partially machined and partially non-machined
US6656307B2 (en) 1999-11-24 2003-12-02 3M Innovative Properties Company Method of making signs having metalized cube corner sheeting
US8728610B2 (en) * 2000-02-25 2014-05-20 3M Innovative Properties Company Compound mold and structured surface articles containing geometric structures with compound faces and method of making same
DE60236297D1 (en) 2001-06-11 2010-06-17 Avery Dennison Corp REPLACEMENTS WITH CONTROLLED DIVERGENCE MANUFACTURED BY THE GROOVING METHOD
US20040051948A1 (en) * 2002-09-11 2004-03-18 David Reed Systems, methods, and apparatus for patterned sheeting
US6871966B2 (en) * 2002-12-12 2005-03-29 Avery Dennison Corporation Retroreflector with controlled divergence made by the method of localized substrate stress
US7174619B2 (en) 2003-03-06 2007-02-13 3M Innovative Properties Company Methods of making microstructured lamina and apparatus
US7410604B2 (en) 2003-03-06 2008-08-12 3M Innovative Properties Company Method of making retroreflective sheeting and slot die apparatus
US6884371B2 (en) * 2003-03-06 2005-04-26 3M Innovative Properties Company Method of making retroreflective sheeting and articles
US7370981B2 (en) * 2003-12-24 2008-05-13 Avery Dennison Corporation Cube corner retroreflector with limited range

Also Published As

Publication number Publication date
US20050180012A1 (en) 2005-08-18
US7458694B2 (en) 2008-12-02
EP3006970A1 (en) 2016-04-13
EP3006970B1 (en) 2023-05-31
US20090185272A1 (en) 2009-07-23
EP2261013B1 (en) 2015-12-23
JP2015072496A (en) 2015-04-16
EP2258540A1 (en) 2010-12-08
BR122014006592B1 (en) 2015-06-30
US9724882B2 (en) 2017-08-08
WO2004080700A1 (en) 2004-09-23
US20100226009A1 (en) 2010-09-09
JP5706240B2 (en) 2015-04-22
US7309135B2 (en) 2007-12-18
US20170008241A1 (en) 2017-01-12
KR20050110655A (en) 2005-11-23
EP1610941B1 (en) 2012-11-07
JP6039636B2 (en) 2016-12-07
CN1756648A (en) 2006-04-05
CA2517672C (en) 2012-07-31
US9465147B2 (en) 2016-10-11
EP1610941A1 (en) 2006-01-04
BRPI0407899B1 (en) 2014-09-02
BRPI0407899A (en) 2006-03-01
US20040174602A1 (en) 2004-09-09
US10562249B2 (en) 2020-02-18
JP2006520711A (en) 2006-09-14
US6884371B2 (en) 2005-04-26
CN1756648B (en) 2010-09-29
US20080068713A1 (en) 2008-03-20
US20170320280A1 (en) 2017-11-09
US8596800B2 (en) 2013-12-03
EP2261013A3 (en) 2013-10-30
EP2261013A2 (en) 2010-12-15
JP2013190793A (en) 2013-09-26
JP2011203751A (en) 2011-10-13
US20140036367A1 (en) 2014-02-06
KR101089459B1 (en) 2011-12-07
US7744228B2 (en) 2010-06-29

Similar Documents

Publication Publication Date Title
CA2517672A1 (en) Method of making retroreflective sheeting and articles
JP2006520711A5 (en)
IL133857A0 (en) Cube corner sheeting mold and method of making the same
US6082057A (en) Splitting technique
EP1422048A3 (en) Method and device for the fabrication of composite material articles using several material dispensers and rotating work surfaces
NZ335625A (en) Pre-split concrete or masonry blocks
AU2000270860A1 (en) A compound mold and structured surface articles containing geometric structures with compound faces and method of making same
DE602004011728D1 (en) Three-dimensional sipes for running surfaces
CA2231567A1 (en) Concrete block
DE69720543D1 (en) METHOD FOR PRODUCING SEVERAL TABLETS FOR USE IN A MOLDING TOOL FOR RETRORE-REFLECTIVE CUBE-CORNER OBJECTS, MOLDING TOOL AND PRODUCED ITEMS
CA2479147A1 (en) Plaster board and method of fabricating the plaster board
MY138730A (en) Reinforced hook web
DE60112296D1 (en) METHOD FOR PRODUCING A PLATE COMPRISING INTERMEDIATE FORMING AND FINAL FORMING
WO2004030879A3 (en) Method and apparatus for fabricating gypsum board
CA2337304A1 (en) Die capable of being opened, manufacturing method thereof, and mold
CA3085687C (en) Edge strip and method for its manufacture
US20180001501A1 (en) Multiple-axis articulating member and method for making same
KR950702471A (en) MANUFACTURING PROCESS AND COMPOSITE TILE OF PLASTIC MATERIAL OF RECOVERY OBTAINED BY SAID PROCESS
EP0899053A3 (en) A plated product and a method and apparatus for producing the same
JP2579430B2 (en) Die for forming object
US20210170659A1 (en) Method for marking a decorative article
JPH0720182Y2 (en) Concrete formwork for masonry
JPH0420655A (en) Inlaid tile and its manufacture
WO2007022267A3 (en) Micro-molded integral non-line-of sight articles and method
JPS61164811A (en) Mold for molding joint

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20190211