GB2055677B - Foil video discs - Google Patents

Foil video discs

Info

Publication number
GB2055677B
GB2055677B GB8021627A GB8021627A GB2055677B GB 2055677 B GB2055677 B GB 2055677B GB 8021627 A GB8021627 A GB 8021627A GB 8021627 A GB8021627 A GB 8021627A GB 2055677 B GB2055677 B GB 2055677B
Authority
GB
United Kingdom
Prior art keywords
foil
video discs
discs
video
foil video
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
GB8021627A
Other versions
GB2055677A (en
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.)
EMI Ltd
Original Assignee
EMI 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 EMI Ltd filed Critical EMI Ltd
Priority to GB8021627A priority Critical patent/GB2055677B/en
Publication of GB2055677A publication Critical patent/GB2055677A/en
Application granted granted Critical
Publication of GB2055677B publication Critical patent/GB2055677B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • 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
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/005—Producing optically read record carriers, e.g. optical discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
GB8021627A 1979-07-14 1980-07-02 Foil video discs Expired GB2055677B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8021627A GB2055677B (en) 1979-07-14 1980-07-02 Foil video discs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7924622 1979-07-14
GB8021627A GB2055677B (en) 1979-07-14 1980-07-02 Foil video discs

Publications (2)

Publication Number Publication Date
GB2055677A GB2055677A (en) 1981-03-11
GB2055677B true GB2055677B (en) 1983-01-06

Family

ID=26272189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8021627A Expired GB2055677B (en) 1979-07-14 1980-07-02 Foil video discs

Country Status (1)

Country Link
GB (1) GB2055677B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085121B2 (en) 1999-05-13 2015-07-21 3M Innovative Properties Company Adhesive-backed articles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548578B1 (en) * 1983-07-04 1986-01-31 Thomson Csf METHOD OF MANUFACTURING OPTICAL DISCS BY PRESSING AND DISC OBTAINED BY SUCH A METHOD
JPH0682460B2 (en) * 1985-10-14 1994-10-19 富士写真フイルム株式会社 Method for manufacturing support for magnetic recording medium
US6440880B2 (en) 1993-10-29 2002-08-27 3M Innovative Properties Company Pressure-sensitive adhesives having microstructured surfaces
US5897930A (en) * 1996-12-31 1999-04-27 Minnesota Mining And Manufacturing Company Multiple embossed webs
US6197397B1 (en) 1996-12-31 2001-03-06 3M Innovative Properties Company Adhesives having a microreplicated topography and methods of making and using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9085121B2 (en) 1999-05-13 2015-07-21 3M Innovative Properties Company Adhesive-backed articles

Also Published As

Publication number Publication date
GB2055677A (en) 1981-03-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee