CA2064484C - Retroreflective sheet - Google Patents
Retroreflective sheetInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Optical Elements Other Than Lenses (AREA)
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)
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 |
US5882796A (en) * | 1996-04-01 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Bonded structured retroreflective sheeting |
US5910858A (en) * | 1996-04-01 | 1999-06-08 | Minnesota Mining And Manufacturing Company | Retroreflective sheeting with coated back surface |
US5754338A (en) * | 1996-04-01 | 1998-05-19 | Minnesota Mining And Manufacturing Company | Structured retroreflective sheeting having a rivet-like connection |
US5784197A (en) * | 1996-04-01 | 1998-07-21 | Minnesota Mining And Manufacturing Company | Ultra-flexible 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 |
EP2419771B1 (de) | 2009-04-15 | 2020-09-23 | 3M Innovative Properties Company | Lichtleiter mit optischem film der hohlräume enthält |
JP5727460B2 (ja) | 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 | 光結合を防止するための光学フィルム |
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 |
CN102844175B (zh) | 2010-04-15 | 2016-08-03 | 3M创新有限公司 | 包括光学活性区域和无光学活性区域的回射制品 |
WO2011129833A1 (en) | 2010-04-15 | 2011-10-20 | 3M Innovative Properties Company | Retroreflective articles including optically active areas and optically inactive areas |
KR101960149B1 (ko) | 2010-04-15 | 2019-03-19 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 광학적 활성 영역 및 광학적 불활성 영역을 포함하는 재귀반사성 물품 |
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 |
JP7352538B2 (ja) * | 2018-03-27 | 2023-09-28 | 日本カーバイド工業株式会社 | 再帰反射シートの製造方法及び再帰反射シート |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE329109B (de) * | 1966-11-14 | 1970-09-28 | Minnesota Mining & Mfg | |
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 |
CA2014254C (en) * | 1989-05-23 | 2001-07-24 | Howard R. Tolliver | Flexible, substrate-insular retroreflective sheeting |
US5171624A (en) * | 1990-06-01 | 1992-12-15 | Reflexite Corporation | Retroreflective microprismatic material and method of making same |
-
1992
- 1992-03-31 CA CA002064484A patent/CA2064484C/en not_active Expired - Fee Related
- 1992-04-10 JP JP4091165A patent/JPH087281B2/ja not_active Expired - Fee Related
- 1992-04-10 DE DE4212203A patent/DE4212203A1/de not_active Withdrawn
- 1992-04-10 FR FR9204442A patent/FR2675271B1/fr not_active Expired - Fee Related
- 1992-04-13 GB GB9208092A patent/GB2254826B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2064484A1 (en) | 1992-10-12 |
GB2254826B (en) | 1994-09-07 |
FR2675271B1 (fr) | 1995-01-13 |
FR2675271A1 (fr) | 1992-10-16 |
GB9208092D0 (en) | 1992-05-27 |
JPH087281B2 (ja) | 1996-01-29 |
JPH05107406A (ja) | 1993-04-30 |
DE4212203A1 (de) | 1992-10-22 |
GB2254826A (en) | 1992-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |