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GB1389021A - Retro-reflective material and manufacturing process therefor - Google Patents

Retro-reflective material and manufacturing process therefor

Info

Publication number
GB1389021A
GB1389021A GB565871A GB565871A GB1389021A GB 1389021 A GB1389021 A GB 1389021A GB 565871 A GB565871 A GB 565871A GB 565871 A GB565871 A GB 565871A GB 1389021 A GB1389021 A GB 1389021A
Authority
GB
United Kingdom
Prior art keywords
beads
retro
plastics
matrix
reflective material
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
Application number
GB565871A
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.)
BXL Plastics Ltd
Original Assignee
Bakelite Xylonite 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 Bakelite Xylonite Ltd filed Critical Bakelite Xylonite Ltd
Priority to GB565871A priority Critical patent/GB1389021A/en
Priority to IT48664/72A priority patent/IT948787B/en
Priority to FR7207037A priority patent/FR2128462B1/fr
Priority to DE19722209817 priority patent/DE2209817A1/en
Priority to DE19722209801 priority patent/DE2209801A1/en
Priority to US05/417,578 priority patent/US3989775A/en
Publication of GB1389021A publication Critical patent/GB1389021A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/12Reflex reflectors
    • G02B5/126Reflex reflectors including curved refracting surface
    • G02B5/128Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00Producing optical elements, e.g. lenses or prisms
    • B29D11/00605Production of reflex reflectors
    • B29D11/00615Production of reflex reflectors moulded by partially embedding reflective elements, e.g. glass beads, into the surface of a support, e.g. to make prefabricated road markings
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/506Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
    • E01F9/512Preformed road surface markings, e.g. of sheet material; Methods of applying preformed markings

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Laminated Bodies (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

1389021 Retro-reflective material BAKELITE XYLONITE Ltd 1 March 1972 [1 March 1971] 5658/71 Heading B2E A retro-reflective material comprises spherical beads of a transparent or translucent material (especially glass) of refractive index 1.7 to 2.0 distributed in a mono-layer over, and embedded in, an area on the surface of a plastics matrix, this area having an embossing superimposed on the beaded surface thereof. The beads may be in contact with a reflective layer comprising gold, silver or aluminium or a material containing TiO 2 or BaSO 4 , and silver-coated beads may particularly be used. The reflective layer is usually removed from the exposed portions of the beads by abrasion or chemical treatment. The matrix may be of phenol-formaldehyde, epoxy or unsaturated polyester resin, thermosetting or thermoplastic polyurethane, rigid or flexible PVC, polystyrene, ABS resin, polymethylmethacrylate, polyamide, polycarbonate, polyethylene terephthalate, polyethylene or polypropylene and may be in the form of a plastics-coated cotton fabric. The beads are applied to the matrix by spraying or dropping, electrostatically, by a printing technique or by means of a release carrier, the surface of the plastics being softened (if not naturally tacky) by heating or solvent action, or else a pressure sensitive adhesive or other adhesive pattern may be applied to the surface. A coupling agent, especially an organosilane, may be applied to the beads to assist bonding. Embossing is effected by means of a suitably engraved roller, platen or plate, embedding being effected either simultaneously or previously.
GB565871A 1971-03-01 1971-03-01 Retro-reflective material and manufacturing process therefor Expired GB1389021A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB565871A GB1389021A (en) 1971-03-01 1971-03-01 Retro-reflective material and manufacturing process therefor
IT48664/72A IT948787B (en) 1971-03-01 1972-02-29 IMPROVEMENT IN RETRO REFLECTIVE MATERIALS AND MANUFACTURING PROCESS
FR7207037A FR2128462B1 (en) 1971-03-01 1972-03-01
DE19722209817 DE2209817A1 (en) 1971-03-01 1972-03-01 Retroreflective material, its use and process for its manufacture
DE19722209801 DE2209801A1 (en) 1971-03-01 1972-03-01 Retroreflective material, its manufacture and use
US05/417,578 US3989775A (en) 1971-03-01 1973-11-20 Method of making a retro-reflective beaded material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB565871A GB1389021A (en) 1971-03-01 1971-03-01 Retro-reflective material and manufacturing process therefor

Publications (1)

Publication Number Publication Date
GB1389021A true GB1389021A (en) 1975-04-03

Family

ID=9800203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB565871A Expired GB1389021A (en) 1971-03-01 1971-03-01 Retro-reflective material and manufacturing process therefor

Country Status (4)

Country Link
DE (2) DE2209801A1 (en)
FR (1) FR2128462B1 (en)
GB (1) GB1389021A (en)
IT (1) IT948787B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0745723B2 (en) * 1984-10-22 1995-05-17 アトム化学塗料株式会社 High-brightness road marking sheet material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172942A (en) * 1959-11-02 1965-03-09 Reflective dry strip transfer
GB962570A (en) * 1960-09-16 1964-07-01 Minnesota Mining & Mfg Improved reflective material
US3420597A (en) * 1964-04-13 1969-01-07 Minnesota Mining & Mfg Retroreflective structure and method of making same
US3279313A (en) * 1964-05-18 1966-10-18 Internat Product Design And Re Projector screens and method and apparatus for using same

Also Published As

Publication number Publication date
IT948787B (en) 1973-06-11
FR2128462B1 (en) 1975-10-24
DE2209817A1 (en) 1972-09-21
DE2209801A1 (en) 1972-09-21
FR2128462A1 (en) 1972-10-20

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Legal Events

Date Code Title Description
PS Patent sealed
49R Reference inserted (sect. 9/1949)
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee