JPS54138618A - Polyurethane composite fibers - Google Patents

Polyurethane composite fibers

Info

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
Application number
JP4417678A
Other languages
Japanese (ja)
Other versions
JPS5734369B2 (en
Inventor
Toshiaki Hidaka
Toshiyuki Takeda
Shigeru Mizutani
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 JP4417678A priority Critical patent/JPS54138618A/en
Publication of JPS54138618A publication Critical patent/JPS54138618A/en
Publication of JPS5734369B2 publication Critical patent/JPS5734369B2/ja
Granted legal-status Critical Current

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  • 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
JP4417678A 1978-04-17 1978-04-17 Polyurethane composite fibers Granted JPS54138618A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0333067U (en) * 1989-08-10 1991-04-02

Cited By (5)

* Cited by examiner, † Cited by third party
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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