JPS56112511A - Production of polyurethane elastic yarn - Google Patents

Production of polyurethane elastic yarn

Info

Publication number
JPS56112511A
JPS56112511A JP1404180A JP1404180A JPS56112511A JP S56112511 A JPS56112511 A JP S56112511A JP 1404180 A JP1404180 A JP 1404180A JP 1404180 A JP1404180 A JP 1404180A JP S56112511 A JPS56112511 A JP S56112511A
Authority
JP
Japan
Prior art keywords
hydroxyls
elastic yarn
chips
powder
mixed
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
JP1404180A
Other languages
Japanese (ja)
Other versions
JPS5844764B2 (en
Inventor
Yasuhiro Ogawa
Yasuo Kishida
Soichi Murakami
Tsutomu Tejima
Yasuo Muramoto
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.)
Kanebo Synthetic Fibers Ltd
Kanebo Ltd
Kanebo Gohsen Ltd
Original Assignee
Kanebo Synthetic Fibers Ltd
Kanebo Ltd
Kanebo Gohsen 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 Kanebo Synthetic Fibers Ltd, Kanebo Ltd, Kanebo Gohsen Ltd filed Critical Kanebo Synthetic Fibers Ltd
Priority to JP1404180A priority Critical patent/JPS5844764B2/en
Publication of JPS56112511A publication Critical patent/JPS56112511A/en
Publication of JPS5844764B2 publication Critical patent/JPS5844764B2/en
Expired legal-status Critical Current

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Abstract

PURPOSE: Specific polyutethane starting materials are mixed to react with one another and made into a powder, then melt extruded into chips, melt spun and heat treated under specific conditions to produce the titled elastic yarn with high heat resistance and high recovery at high temperature with industrial advantage.
CONSTITUTION: (A) An organic diisocyanate, (B) a polyester having a molecular weight of 700W3,000 and hydroxyls on both chain terminals, (C) an aromatic diol and (D) an organic compound bearing 3 or more hydroxyls in one molecule are mixed so that the resultant mixture has a degree of crosslinking of 0.02W0.07, according to equation I, and an equivalent ratio of 1.00W1.10 isocyanates/hydroxyls (R) and contains 60W75wt% component B. The mixture is stirred under heating and, when the reaction product becomes a powder, it is melt extruded to form chips. Then, the chips are melt spun and heat treated under a constant length condition at 100W105°C to pruduce the objective elastic yarn.
COPYRIGHT: (C)1981,JPO&Japio
JP1404180A 1980-02-06 1980-02-06 Manufacturing method of polyurethane elastic yarn Expired JPS5844764B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1404180A JPS5844764B2 (en) 1980-02-06 1980-02-06 Manufacturing method of polyurethane elastic yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1404180A JPS5844764B2 (en) 1980-02-06 1980-02-06 Manufacturing method of polyurethane elastic yarn

Publications (2)

Publication Number Publication Date
JPS56112511A true JPS56112511A (en) 1981-09-04
JPS5844764B2 JPS5844764B2 (en) 1983-10-05

Family

ID=11850021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1404180A Expired JPS5844764B2 (en) 1980-02-06 1980-02-06 Manufacturing method of polyurethane elastic yarn

Country Status (1)

Country Link
JP (1) JPS5844764B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607794A1 (en) * 1993-01-20 1994-07-27 BASF Aktiengesellschaft Non-tacky, high elastic mono- and multifilament polyurethane yarns, process for their production, their uses and partially cross-linked thermoplastic polyurethane therefor
EP0629721A2 (en) * 1993-06-16 1994-12-21 BASF Aktiengesellschaft Non-tacky, high elastic mono and multifilament polyester polyurethane yarns, process for their production by melt spinning and their uses
CN1303122C (en) * 2003-08-28 2007-03-07 冯鹰 Production equipment of polyurethane fibre chip and application method of said polyurethane fibre chip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607794A1 (en) * 1993-01-20 1994-07-27 BASF Aktiengesellschaft Non-tacky, high elastic mono- and multifilament polyurethane yarns, process for their production, their uses and partially cross-linked thermoplastic polyurethane therefor
EP0629721A2 (en) * 1993-06-16 1994-12-21 BASF Aktiengesellschaft Non-tacky, high elastic mono and multifilament polyester polyurethane yarns, process for their production by melt spinning and their uses
EP0629721A3 (en) * 1993-06-16 1995-06-28 Basf Ag Non-tacky, high elastic mono and multifilament polyester polyurethane yarns, process for their production by melt spinning and their uses.
CN1303122C (en) * 2003-08-28 2007-03-07 冯鹰 Production equipment of polyurethane fibre chip and application method of said polyurethane fibre chip

Also Published As

Publication number Publication date
JPS5844764B2 (en) 1983-10-05

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