JPS6453840A - Polyester laminated film - Google Patents

Polyester laminated film

Info

Publication number
JPS6453840A
JPS6453840A JP21216287A JP21216287A JPS6453840A JP S6453840 A JPS6453840 A JP S6453840A JP 21216287 A JP21216287 A JP 21216287A JP 21216287 A JP21216287 A JP 21216287A JP S6453840 A JPS6453840 A JP S6453840A
Authority
JP
Japan
Prior art keywords
inorganic particles
film
inert inorganic
projections
grain size
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
JP21216287A
Other languages
Japanese (ja)
Other versions
JPH0574462B2 (en
Inventor
Koichi Abe
Takashi Mimura
Katsumi Kida
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP21216287A priority Critical patent/JPS6453840A/en
Publication of JPS6453840A publication Critical patent/JPS6453840A/en
Publication of JPH0574462B2 publication Critical patent/JPH0574462B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a film, prominent in both of anti-scratch property and anti-scraping property, by a method wherein polymer layers, having the thickness of a ratio within a specified range with respect to the average grain size of inert inorganic particles contained in polyester, are laminated and the ratio of particles of the inorganic particles in respective layers is limited within a specified range while the volume of effective spaces, produced by projections on the surface of a film, is also limited within a specified range. CONSTITUTION:A polymer layer, having the thickness of 0.01C-0.5C (unit is mum) and containing no inert inorganic particles substantially, is provided on at least one side of a film having the principal constituent of a composite consisting of polyester and inert inorganic particles having an average grain size C (mum). In this case, said polymer layer contains inert inorganic particles having the average grain size of 0.01C-0.35C and the volume of effective spaces, produced by projections on the surface of a laminating surface, is limited within the range of 1X10<3>-5X10<5>. According to this method, the shock absorbing capacity and viscoelastic characteristic of the projections, existing on the surface, may be improved. Accordingly, the film, prominent in both of anti-scratch property and anti-scraping property, may be obtained.
JP21216287A 1987-08-25 1987-08-25 Polyester laminated film Granted JPS6453840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21216287A JPS6453840A (en) 1987-08-25 1987-08-25 Polyester laminated film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21216287A JPS6453840A (en) 1987-08-25 1987-08-25 Polyester laminated film

Publications (2)

Publication Number Publication Date
JPS6453840A true JPS6453840A (en) 1989-03-01
JPH0574462B2 JPH0574462B2 (en) 1993-10-18

Family

ID=16617930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21216287A Granted JPS6453840A (en) 1987-08-25 1987-08-25 Polyester laminated film

Country Status (1)

Country Link
JP (1) JPS6453840A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03187741A (en) * 1989-12-18 1991-08-15 Toray Ind Inc Biaxially oriented thermoplastic resin film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236733A (en) * 1984-04-16 1985-11-25 ヘキスト・アクチエンゲゼルシヤフト Biaxial-oriented carrier film obtained through co-extrusion of multilayer for magnetic information carrier and manufacture thereof
JPS6264545A (en) * 1985-05-29 1987-03-23 帝人株式会社 Polyester film for metallic thin-film magnetic record medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60236733A (en) * 1984-04-16 1985-11-25 ヘキスト・アクチエンゲゼルシヤフト Biaxial-oriented carrier film obtained through co-extrusion of multilayer for magnetic information carrier and manufacture thereof
JPS6264545A (en) * 1985-05-29 1987-03-23 帝人株式会社 Polyester film for metallic thin-film magnetic record medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03187741A (en) * 1989-12-18 1991-08-15 Toray Ind Inc Biaxially oriented thermoplastic resin film

Also Published As

Publication number Publication date
JPH0574462B2 (en) 1993-10-18

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term