BR8303475A - Pelicula de poliester biaxialmente orientada e processo de preparacao da pelicula - Google Patents
Pelicula de poliester biaxialmente orientada e processo de preparacao da peliculaInfo
- Publication number
- BR8303475A BR8303475A BR8303475A BR8303475A BR8303475A BR 8303475 A BR8303475 A BR 8303475A BR 8303475 A BR8303475 A BR 8303475A BR 8303475 A BR8303475 A BR 8303475A BR 8303475 A BR8303475 A BR 8303475A
- Authority
- BR
- Brazil
- Prior art keywords
- film
- preparation process
- biaxially oriented
- oriented polyester
- polyester film
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73923—Organic polymer substrates
- G11B5/73927—Polyester substrates, e.g. polyethylene terephthalate
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8211465A FR2529506A1 (fr) | 1982-06-30 | 1982-06-30 | Film de polyester biaxialement oriente, son procede de preparation et son application comme support de bande magnetique |
Publications (1)
Publication Number | Publication Date |
---|---|
BR8303475A true BR8303475A (pt) | 1984-02-07 |
Family
ID=9275549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR8303475A BR8303475A (pt) | 1982-06-30 | 1983-06-28 | Pelicula de poliester biaxialmente orientada e processo de preparacao da pelicula |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0099839A1 (pt) |
JP (1) | JPS5948125A (pt) |
BR (1) | BR8303475A (pt) |
FR (1) | FR2529506A1 (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2640984B1 (pt) * | 1988-12-28 | 1992-09-11 | Rhone Poulenc Films | |
JPH0542596A (ja) * | 1991-08-16 | 1993-02-23 | Toyobo Co Ltd | 二軸配向ポリエチレンテレフタレート系フイルム |
JP2007268859A (ja) * | 2006-03-31 | 2007-10-18 | Japan Steel Works Ltd:The | シート材の押出成形装置、シート材の押出成形方法、およびシート材 |
JP5915102B2 (ja) * | 2011-11-11 | 2016-05-11 | 東レ株式会社 | 二軸配向ポリエステルフィルムおよび磁気記録媒体 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2995779A (en) * | 1959-03-12 | 1961-08-15 | Du Pont | Treatment for polymeric film to restrain gauge variation |
FR1345217A (fr) * | 1961-11-21 | 1963-12-06 | Du Pont | Procédé d'étirage de pellicules en polyesters |
US3432591A (en) * | 1966-10-21 | 1969-03-11 | Du Pont | Biaxially oriented heat set film of high molecular weight polyethylene terephthalate |
-
1982
- 1982-06-30 FR FR8211465A patent/FR2529506A1/fr active Granted
-
1983
- 1983-06-28 EP EP83420106A patent/EP0099839A1/fr not_active Withdrawn
- 1983-06-28 BR BR8303475A patent/BR8303475A/pt unknown
- 1983-06-29 JP JP58118048A patent/JPS5948125A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2529506B1 (pt) | 1985-03-15 |
JPS5948125A (ja) | 1984-03-19 |
FR2529506A1 (fr) | 1984-01-06 |
EP0099839A1 (fr) | 1984-02-01 |
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