JPS54138618A - Polyurethane composite fibers - Google Patents
Polyurethane composite fibersInfo
- Publication number
- JPS54138618A JPS54138618A JP4417678A JP4417678A JPS54138618A JP S54138618 A JPS54138618 A JP S54138618A JP 4417678 A JP4417678 A JP 4417678A JP 4417678 A JP4417678 A JP 4417678A JP S54138618 A JPS54138618 A JP S54138618A
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane
- sheath
- polycapramide
- polycarbonate
- component
- 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
- Multicomponent Fibers (AREA)
Abstract
PURPOSE: To obtain the title fibers having improved heat and wet heat resistance free from peeling of components, by eccentric composite spinning of a specific polyurethane as a core component and polycapramide as a sheath component.
CONSTITUTION: Eccentric sheath-core composite spinning of (A) a polyurethane block copolymer consisting of (a) polycarbonate-type polyurethane and (b) poly caprolactone-type polyurethane at a weight ratio of (a) to (b) of 20:80 W 45:55 as a core component and (B) a polycapramide having an intrinsic viscosity [η] of 0.9 W 1.1 as a sheath component is carried out to give the desired composite fibers. The copolymer is obtained by reacting a polycarbonate-polyol having molecular weight of 600 W 3,000 of formula with a poly caprolactone having a molecular weight of 1,000 W 3,000, a diisocyanate and a chain extender.
EFFECT: Improved unwinding properties and no broken fiber.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4417678A JPS54138618A (en) | 1978-04-17 | 1978-04-17 | Polyurethane composite fibers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4417678A JPS54138618A (en) | 1978-04-17 | 1978-04-17 | Polyurethane composite fibers |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54138618A true JPS54138618A (en) | 1979-10-27 |
JPS5734369B2 JPS5734369B2 (en) | 1982-07-22 |
Family
ID=12684263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4417678A Granted JPS54138618A (en) | 1978-04-17 | 1978-04-17 | Polyurethane composite fibers |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54138618A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5876522A (en) * | 1981-11-02 | 1983-05-09 | Teijin Ltd | Preparation of crimped elastic fiber |
EP0349313A2 (en) * | 1988-06-30 | 1990-01-03 | Toray Industries, Inc. | Polyurethane polyamide self-crimping conjugate fiber |
JPH03146702A (en) * | 1990-01-23 | 1991-06-21 | Kanebo Ltd | Stocking |
JPH03146701A (en) * | 1989-10-27 | 1991-06-21 | Kanebo Ltd | Stocking |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0333067U (en) * | 1989-08-10 | 1991-04-02 |
-
1978
- 1978-04-17 JP JP4417678A patent/JPS54138618A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5876522A (en) * | 1981-11-02 | 1983-05-09 | Teijin Ltd | Preparation of crimped elastic fiber |
JPS6358933B2 (en) * | 1981-11-02 | 1988-11-17 | ||
EP0349313A2 (en) * | 1988-06-30 | 1990-01-03 | Toray Industries, Inc. | Polyurethane polyamide self-crimping conjugate fiber |
JPH03146701A (en) * | 1989-10-27 | 1991-06-21 | Kanebo Ltd | Stocking |
JPH03146702A (en) * | 1990-01-23 | 1991-06-21 | Kanebo Ltd | Stocking |
Also Published As
Publication number | Publication date |
---|---|
JPS5734369B2 (en) | 1982-07-22 |
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