CA2064484C - Retroreflective sheet - Google Patents

Retroreflective sheet

Info

Publication number
CA2064484C
CA2064484C CA002064484A CA2064484A CA2064484C CA 2064484 C CA2064484 C CA 2064484C CA 002064484 A CA002064484 A CA 002064484A CA 2064484 A CA2064484 A CA 2064484A CA 2064484 C CA2064484 C CA 2064484C
Authority
CA
Canada
Prior art keywords
formations
adhesive
retroreflective
pattern
sheeting
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.)
Expired - Fee Related
Application number
CA002064484A
Other languages
English (en)
French (fr)
Other versions
CA2064484A1 (en
Inventor
William P. Rowland
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.)
Reflexite Corp
Original Assignee
Reflexite Corp
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 Reflexite Corp filed Critical Reflexite Corp
Publication of CA2064484A1 publication Critical patent/CA2064484A1/en
Application granted granted Critical
Publication of CA2064484C publication Critical patent/CA2064484C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2551/00—Optical elements
CA002064484A 1991-04-11 1992-03-31 Retroreflective sheet Expired - Fee Related CA2064484C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68405791A 1991-04-11 1991-04-11
US07/684,057 1991-04-11

Publications (2)

Publication Number Publication Date
CA2064484A1 CA2064484A1 (en) 1992-10-12
CA2064484C true CA2064484C (en) 1998-08-11

Family

ID=24746533

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002064484A Expired - Fee Related CA2064484C (en) 1991-04-11 1992-03-31 Retroreflective sheet

Country Status (5)

Country Link
JP (1) JPH087281B2 (de)
CA (1) CA2064484C (de)
DE (1) DE4212203A1 (de)
FR (1) FR2675271B1 (de)
GB (1) GB2254826B (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5831766A (en) 1993-02-17 1998-11-03 Reflexite Corporation Retroreflective structure
US6029382A (en) * 1993-09-08 2000-02-29 Kochanowski; George E. Reflective sign
US5654825A (en) * 1995-05-15 1997-08-05 Milton; Richard M. Line obstruction marker ball with enhanced daytime and nighttime visibility
US5784197A (en) * 1996-04-01 1998-07-21 Minnesota Mining And Manufacturing Company Ultra-flexible retroreflective sheeting with coated back surface
US5882796A (en) * 1996-04-01 1999-03-16 Minnesota Mining And Manufacturing Company Bonded structured retroreflective sheeting
US5754338A (en) * 1996-04-01 1998-05-19 Minnesota Mining And Manufacturing Company Structured retroreflective sheeting having a rivet-like connection
US5910858A (en) * 1996-04-01 1999-06-08 Minnesota Mining And Manufacturing Company Retroreflective sheeting with coated back surface
US5805338A (en) * 1996-04-10 1998-09-08 Minnesota Minning And Manufacturing Company Pillowed flexible cube-corner sheeting and methods of manufacture
US5940212A (en) * 1997-10-30 1999-08-17 3M Innovative Properties Company Cube corner article with altered inactive areas and method of making same
US6280822B1 (en) 1999-01-11 2001-08-28 3M Innovative Properties Company Cube corner cavity based retroeflectors with transparent fill material
TWI605276B (zh) 2009-04-15 2017-11-11 ３Ｍ新設資產公司 光學結構及包含該光學結構之顯示系統
CN102460125B (zh) 2009-04-15 2015-11-25 3M创新有限公司 防止光学耦合的光学膜
US8891038B2 (en) 2009-04-15 2014-11-18 3M Innovative Properties Company Lightguide with optical film containing voids and blacklight for display system
EP2558290B1 (de) 2010-04-15 2019-01-23 3M Innovative Properties Company Rückstrahlende artikel mit optisch aktiven bereichen und optisch inaktiven bereichen
MX341955B (es) 2010-04-15 2016-09-08 3M Innovative Properties Co Articulos retrorreflectantes que incluyen areas opticamente activas y areas opticamente inactivas.
EP2558288B1 (de) 2010-04-15 2019-01-02 3M Innovative Properties Company Rückstrahlende artikel mit optisch aktiven bereichen und optisch inaktiven bereichen
US8783880B2 (en) * 2011-11-01 2014-07-22 Avery Dennison Corporation Rulable multi-directional prism cluster retroreflective sheeting
JP6382862B2 (ja) * 2016-01-15 2018-08-29 スリーエム イノベイティブ プロパティズ カンパニー 再帰反射性物品及びその作製方法
JP2019078910A (ja) * 2017-10-25 2019-05-23 日本カーバイド工業株式会社 再帰反射シート
US11927779B2 (en) 2018-03-27 2024-03-12 Nippon Carbide Industries Co., Inc. Method for manufacturing retroreflective sheet and retroreflective sheet

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1646251C3 (de) * 1966-11-14 1973-07-12 Minnesota Mining & Mfg Einstueckiger Reflektor
CA1063570A (en) * 1967-03-24 1979-10-02 Amerace Corporation Light reflector structure
US4025159A (en) * 1976-02-17 1977-05-24 Minnesota Mining And Manufacturing Company Cellular retroreflective sheeting
US4349598A (en) * 1976-12-01 1982-09-14 Minnesota Mining And Manufacturing Company High incidence angle retroreflective material
US4145112A (en) * 1977-07-14 1979-03-20 Minnesota Mining And Manufacturing Company Low-profile raised retroreflective sheeting
US4555161A (en) * 1984-02-16 1985-11-26 Reflexite Corporation Encapsulated retroreflective material and method of making same
US4801193A (en) * 1988-03-04 1989-01-31 Reflexite Corporation Retroreflective sheet material and method of making same
US4952023A (en) * 1988-03-18 1990-08-28 Minnesota Mining And Manufacturing Company Internally illuminated retroreflective sign
US4895428A (en) * 1988-07-26 1990-01-23 Minnesota Mining And Manufacturing Company High efficiency retroreflective material
AU614466B2 (en) * 1989-05-23 1991-08-29 Minnesota Mining And Manufacturing Company Flexible, substrate-insular retroreflective sheeting
US5171624A (en) * 1990-06-01 1992-12-15 Reflexite Corporation Retroreflective microprismatic material and method of making same

Also Published As

Publication number Publication date
JPH05107406A (ja) 1993-04-30
GB2254826B (en) 1994-09-07
CA2064484A1 (en) 1992-10-12
GB9208092D0 (en) 1992-05-27
JPH087281B2 (ja) 1996-01-29
FR2675271B1 (fr) 1995-01-13
FR2675271A1 (fr) 1992-10-16
GB2254826A (en) 1992-10-21
DE4212203A1 (de) 1992-10-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed