CA2252978A1 - Method of making glittering cube-corner retroreflective sheeting - Google Patents

Method of making glittering cube-corner retroreflective sheeting

Info

Publication number
CA2252978A1
CA2252978A1 CA002252978A CA2252978A CA2252978A1 CA 2252978 A1 CA2252978 A1 CA 2252978A1 CA 002252978 A CA002252978 A CA 002252978A CA 2252978 A CA2252978 A CA 2252978A CA 2252978 A1 CA2252978 A1 CA 2252978A1
Authority
CA
Canada
Prior art keywords
cube
sheeting
corner
retroreflective sheeting
elements
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
CA002252978A
Other languages
French (fr)
Other versions
CA2252978C (en
Inventor
Paul E. Marecki
Jeanine M. Shusta
Matthew R. Atkinson
Cheryl M. Frey
Olester Benson Jr.
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 Co
Original Assignee
Minnesota Mining And Manufacturing Company
Paul E. Marecki
Jeanine M. Shusta
Matthew R. Atkinson
Cheryl M. Frey
Olester Benson Jr.
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 Minnesota Mining And Manufacturing Company, Paul E. Marecki, Jeanine M. Shusta, Matthew R. Atkinson, Cheryl M. Frey, Olester Benson Jr. filed Critical Minnesota Mining And Manufacturing Company
Priority to CA002521906A priority Critical patent/CA2521906A1/en
Publication of CA2252978A1 publication Critical patent/CA2252978A1/en
Application granted granted Critical
Publication of CA2252978C publication Critical patent/CA2252978C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/32—Retroreflective
    • A41D31/325—Retroreflective using layered materials

Abstract

A method of making a glittering cube-corner sheeting, which method comprises:
a) providing a first retroreflective sheeting that includes an array of cube-corner elements arranged in a repeating pattern; and b) exposing the first retroreflective sheeting to heat, pressure, or a combination thereof to produce a second retroreflective sheeting that comprises an array of cube-corner elements that are randomly tilted, the cube-corner elements becoming randomly tilted from the heat, pressure or the combination thereof other than through securing a seal film to the array that is arranged in the repeating pattern; or which method may comprise: forming a cube-corner sheeting from a mold that has a structured surface that includes a multiplicity of cube-comer elements, the cube-comer elements each including a base plane and three faces, the cube-corner elements being arranged such that the base planes do not reside in the same plane when the sheeting is laid flat.
CA002252978A 1996-04-30 1997-04-04 Method of making glittering cube-corner retroreflective sheeting Expired - Fee Related CA2252978C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002521906A CA2521906A1 (en) 1996-04-30 1997-04-04 Method of making glittering cube-corner retroreflective sheeting

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/641129 1996-04-30
US08/641,129 US5770124A (en) 1996-04-30 1996-04-30 Method of making glittering cube-corner retroreflective sheeting
PCT/US1997/006019 WO1997041466A1 (en) 1996-04-30 1997-04-04 Method of making glittering cube-corner retroreflective sheeting

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002521906A Division CA2521906A1 (en) 1996-04-30 1997-04-04 Method of making glittering cube-corner retroreflective sheeting

Publications (2)

Publication Number Publication Date
CA2252978A1 true CA2252978A1 (en) 1997-11-06
CA2252978C CA2252978C (en) 2006-01-24

Family

ID=24571055

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002252978A Expired - Fee Related CA2252978C (en) 1996-04-30 1997-04-04 Method of making glittering cube-corner retroreflective sheeting

Country Status (14)

Country Link
US (1) US5770124A (en)
EP (1) EP0896683B1 (en)
JP (1) JP2000509168A (en)
KR (1) KR100294100B1 (en)
CN (1) CN1110712C (en)
AU (1) AU706749B2 (en)
BR (1) BR9708878A (en)
CA (1) CA2252978C (en)
DE (1) DE69705218T2 (en)
DK (1) DK0896683T3 (en)
ES (1) ES2157571T3 (en)
HK (1) HK1019932A1 (en)
TW (1) TW344804B (en)
WO (1) WO1997041466A1 (en)

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Also Published As

Publication number Publication date
DE69705218D1 (en) 2001-07-19
DK0896683T3 (en) 2001-09-03
KR100294100B1 (en) 2001-09-07
WO1997041466A1 (en) 1997-11-06
KR20000058223A (en) 2000-10-05
CN1217067A (en) 1999-05-19
BR9708878A (en) 1999-08-03
JP2000509168A (en) 2000-07-18
EP0896683B1 (en) 2001-06-13
AU2455197A (en) 1997-11-19
AU706749B2 (en) 1999-06-24
CN1110712C (en) 2003-06-04
DE69705218T2 (en) 2002-02-28
TW344804B (en) 1998-11-11
HK1019932A1 (en) 2000-03-03
CA2252978C (en) 2006-01-24
ES2157571T3 (en) 2001-08-16
EP0896683A1 (en) 1999-02-17
US5770124A (en) 1998-06-23

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