JPS64128A - Polyester film - Google Patents

Polyester film

Info

Publication number
JPS64128A
JPS64128A JP62155174A JP15517487A JPS64128A JP S64128 A JPS64128 A JP S64128A JP 62155174 A JP62155174 A JP 62155174A JP 15517487 A JP15517487 A JP 15517487A JP S64128 A JPS64128 A JP S64128A
Authority
JP
Japan
Prior art keywords
microparticles
polyester film
alkoxysilane
hydrolysis
condensation
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
JP62155174A
Other languages
Japanese (ja)
Other versions
JPH01128A (en
JP2566578B2 (en
Inventor
Kazuo Endo
Nobuyasu Shudo
Masahiko Fujimoto
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.)
Diafoil Co Ltd
Original Assignee
Diafoil Co 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 Diafoil Co Ltd filed Critical Diafoil Co Ltd
Priority to JP62155174A priority Critical patent/JP2566578B2/en
Priority to KR1019870006750A priority patent/KR960006092B1/en
Priority to ES87112252T priority patent/ES2056802T3/en
Priority to AT87112252T priority patent/ATE109493T1/en
Priority to DE3750319T priority patent/DE3750319T2/en
Priority to EP87112252A priority patent/EP0257611B1/en
Publication of JPH01128A publication Critical patent/JPH01128A/en
Publication of JPS64128A publication Critical patent/JPS64128A/en
Priority to US07/420,740 priority patent/US4990400A/en
Priority to US07/420,474 priority patent/US5106681A/en
Application granted granted Critical
Publication of JP2566578B2 publication Critical patent/JP2566578B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To obtain the title film excellent in slidability, winding property, abrasion resistance, etc., by mixing spherical silica microparticles obtained by the hydrolysis and condensation of an alkoxysilane and having specified properties with specified ratio.
CONSTITUTION: Spherical silica microparticles (microparticles A) obtained by the hydrolysis and condensation of an alkoxysilane and having a mean particle diameter of 0.01W1μm and a valve defined by by formula I [d10/d90] in the range of 1.1W2.7 are prepared. Separately, microparticles B (e.g., calcium carbonate or magnesium hydroxide) having a Mohs' hardness ≤4 and a valve [D2/D1] as defined by formula II, of 1.1W4 prepared. 0.01W3wt.% microparticles A and 0.005W0.5wt.% microparticles B are added to a polyester film. The obtained polyester film can be suitably used as a magnetic recording tape for videos, computers, etc.
COPYRIGHT: (C)1989,JPO&Japio
JP62155174A 1986-08-29 1987-06-22 Polyester film Expired - Lifetime JP2566578B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP62155174A JP2566578B2 (en) 1987-06-22 1987-06-22 Polyester film
KR1019870006750A KR960006092B1 (en) 1986-08-29 1987-07-01 Polyester composition, the manufacturing method thereof, the film using the composition, the polyester film for magnetic recording media, and the film for capacitors
AT87112252T ATE109493T1 (en) 1986-08-29 1987-08-24 POLYESTER COMPOSITIONS, PROCESS FOR THEIR PREPARATION, POLYESTER FILMS, POLYESTER FILMS FOR MAGNETIC TAPE AND FILMS THEREOF FOR CAPACITORS.
DE3750319T DE3750319T2 (en) 1986-08-29 1987-08-24 Polyester compositions, processes for their production, polyester films, polyester films for magnetic tapes and films made therefrom for capacitors.
ES87112252T ES2056802T3 (en) 1986-08-29 1987-08-24 POLYESTER COMPOSITIONS, PROCEDURE FOR PREPARING THEM, POLYESTER FILMS, POLYESTER FILMS FOR MAGNETIC RECORDING MEDIA AND FILMS FOR CAPACITORS PRODUCED FROM THEM.
EP87112252A EP0257611B1 (en) 1986-08-29 1987-08-24 Polyester compositions, process for preparing the same, polyester films, polyester films for magnetic recording media and films for capacitors produced therefrom
US07/420,740 US4990400A (en) 1987-02-12 1989-10-12 Polyester films, magnetic recording media and film capacitors produced therefrom
US07/420,474 US5106681A (en) 1987-02-12 1989-10-12 Polyester films, magnetic recording media and film capacitors produced therefrom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62155174A JP2566578B2 (en) 1987-06-22 1987-06-22 Polyester film

Publications (3)

Publication Number Publication Date
JPH01128A JPH01128A (en) 1989-01-05
JPS64128A true JPS64128A (en) 1989-01-05
JP2566578B2 JP2566578B2 (en) 1996-12-25

Family

ID=15600113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62155174A Expired - Lifetime JP2566578B2 (en) 1986-08-29 1987-06-22 Polyester film

Country Status (1)

Country Link
JP (1) JP2566578B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0570612A (en) * 1991-09-12 1993-03-23 Toyobo Co Ltd Biaxially oriented polyester film

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372729A (en) * 1986-09-16 1988-04-02 Teijin Ltd Biaxially orientated polyester film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6372729A (en) * 1986-09-16 1988-04-02 Teijin Ltd Biaxially orientated polyester film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0570612A (en) * 1991-09-12 1993-03-23 Toyobo Co Ltd Biaxially oriented polyester film

Also Published As

Publication number Publication date
JP2566578B2 (en) 1996-12-25

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