JPS64155A - Polyester composition - Google Patents
Polyester compositionInfo
- Publication number
- JPS64155A JPS64155A JP62155175A JP15517587A JPS64155A JP S64155 A JPS64155 A JP S64155A JP 62155175 A JP62155175 A JP 62155175A JP 15517587 A JP15517587 A JP 15517587A JP S64155 A JPS64155 A JP S64155A
- Authority
- JP
- Japan
- Prior art keywords
- particle diameter
- sheet
- particles
- cumulation
- ethylene
- 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
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To obtain the title composition containing particles well dispersed therein which can give a film excellent in slidability, winding property and abrasion resistance, by dispersing specified spherical silica microparticles in a polyester based on ethylene 2,6-naphthalate units.
CONSTITUTION: An alkoxysilane compound (a) (e.g., tetramethoxy-silane) is hydrolyzed and polycondensed in the presence of an amine catalyst (b) (e.g., ammonia) to obtain a spherical silica microparticles (B) which are substantially amorphous and have a mean particle diameter of 0.01W3.0μm and a particle diameter distribution satisfying the formula [wherein (d10/d90) is a ratio of the particle diameter corresponding to 10% cumulation of particles to the particle diameter corresponding to 90% cumulation of particles]. The title composition is obtained by dispersing 0.001W5wt.% component B in a polyester (A) containing at least 80mol.%, desirably, at least 90mol.%, ethylene 2,6-naphthalate units. This composition is extruded into a sheet at 280W320°C and quenched to 80°C or below to form an amorphous sheet, and this sheet is oriented at an area draw ratio ≥4 in both the longitudinal transverse directions and further heat-treated at 120W250°C to obtain a biaxially oriented film of a thickness of 0.2W300μm.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155175A JPH07100757B2 (en) | 1987-06-22 | 1987-06-22 | Polyester film |
KR1019870006750A KR960006092B1 (en) | 1986-08-29 | 1987-07-01 | Polyester films, magnetic recording media & film capacitors produced therefrom |
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. |
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. |
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 |
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. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62155175A JPH07100757B2 (en) | 1987-06-22 | 1987-06-22 | Polyester film |
Publications (3)
Publication Number | Publication Date |
---|---|
JPH01155A JPH01155A (en) | 1989-01-05 |
JPS64155A true JPS64155A (en) | 1989-01-05 |
JPH07100757B2 JPH07100757B2 (en) | 1995-11-01 |
Family
ID=15600134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62155175A Expired - Fee Related JPH07100757B2 (en) | 1986-08-29 | 1987-06-22 | Polyester film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07100757B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63221134A (en) * | 1987-03-11 | 1988-09-14 | Teijin Ltd | Biaxially oriented polyester film |
JPS63234038A (en) * | 1987-03-23 | 1988-09-29 | Teijin Ltd | Biaxially oriented polyester film |
-
1987
- 1987-06-22 JP JP62155175A patent/JPH07100757B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63221134A (en) * | 1987-03-11 | 1988-09-14 | Teijin Ltd | Biaxially oriented polyester film |
JPS63234038A (en) * | 1987-03-23 | 1988-09-29 | Teijin Ltd | Biaxially oriented polyester film |
Also Published As
Publication number | Publication date |
---|---|
JPH07100757B2 (en) | 1995-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |