JPS57121619A - Polyester fiber and its preparation - Google Patents
Polyester fiber and its preparationInfo
- Publication number
- JPS57121619A JPS57121619A JP715381A JP715381A JPS57121619A JP S57121619 A JPS57121619 A JP S57121619A JP 715381 A JP715381 A JP 715381A JP 715381 A JP715381 A JP 715381A JP S57121619 A JPS57121619 A JP S57121619A
- Authority
- JP
- Japan
- Prior art keywords
- iii
- fibers
- formulai
- mixed
- polyethylene terephthalate
- 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
Abstract
PURPOSE: Polyester fibers, prepared by blending polyethylene terephthalate with a copolyester of specific structure, having improved fiber making properties, strength and Young's modulus and reduced heat shrinkage.
CONSTITUTION: (A) 99.5W70pts.wt. polyethylene terephthalate is mixed with (B) 0.5W30pts.wt. polyester having units expressed by formulaI(R is H, CH3 or C2H5) and formulas II and III at a molar ratio of the units expressed by formulasI, II and III satisfying the formulaI≈(II+III) and II/III=(10/90)W(60/40) and a reduced viscosity ηsp/C of 0.1W0.6, and then melt spun. Alternatively, the components (A) and (B) are melt spun while being mixed, and the resultant fiber are then drawn to give the aimed fibers in which the component (B) is at least partially dispersed as a nonuniform phase and the nonuniform phase is present in such a form as to make the dispersion length in the long direction of the fibers larger than that in the direction perpendicular to the long direction of the fibers.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP715381A JPS57121619A (en) | 1981-01-22 | 1981-01-22 | Polyester fiber and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP715381A JPS57121619A (en) | 1981-01-22 | 1981-01-22 | Polyester fiber and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57121619A true JPS57121619A (en) | 1982-07-29 |
JPS6315374B2 JPS6315374B2 (en) | 1988-04-04 |
Family
ID=11658117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP715381A Granted JPS57121619A (en) | 1981-01-22 | 1981-01-22 | Polyester fiber and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57121619A (en) |
-
1981
- 1981-01-22 JP JP715381A patent/JPS57121619A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6315374B2 (en) | 1988-04-04 |
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