JPS57101016A - Preparation of elastic polyurethane - Google Patents

Preparation of elastic polyurethane

Info

Publication number
JPS57101016A
JPS57101016A JP55177188A JP17718880A JPS57101016A JP S57101016 A JPS57101016 A JP S57101016A JP 55177188 A JP55177188 A JP 55177188A JP 17718880 A JP17718880 A JP 17718880A JP S57101016 A JPS57101016 A JP S57101016A
Authority
JP
Japan
Prior art keywords
diisocyanate
diol
molecular weight
spinning
dimer
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
JP55177188A
Other languages
Japanese (ja)
Other versions
JPS6353287B2 (en
Inventor
Atsuo Katayama
Masaru Ichii
Kenji Uno
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.)
Nisshinbo Holdings Inc
Original Assignee
Nisshinbo Industries Inc
Nisshin Boseki KK
Nisshin Spinning Co 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 Nisshinbo Industries Inc, Nisshin Boseki KK, Nisshin Spinning Co Ltd filed Critical Nisshinbo Industries Inc
Priority to JP55177188A priority Critical patent/JPS57101016A/en
Publication of JPS57101016A publication Critical patent/JPS57101016A/en
Publication of JPS6353287B2 publication Critical patent/JPS6353287B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To improve the spinning and thermal properties of the titled product, by adding an adequate amount of a diisocyanate dimer to the continuous reaction and spinning system of a polymeric diol having a specific moleculr weight with a diol and diisocyanate as principal components.
CONSTITUTION: (A) A polymeric diol having a molecular weight ≥750, e.g. polyester glycol (OH-terminated polyethylene adipate, etc.) and a polyether glycol (a ring opening polymer of ethylene oxide, etc.) are mixed with (B) a low- molecular weight diol having a molecular weight ≤500, e.g. 1,4-butanediol, and (C) a diisocyanate, e.g. diphenylmethane diisocyanate, at a molar ratio between the component (C) and the sum of the components (A) and (B) of preferably 1.02W1.15, and a diisocyanate dimer, e.g. tolylene diisocyanate dimer, in an amount ≥0.3wt% is added thereto to carry out the continuous reaction and spinning.
COPYRIGHT: (C)1982,JPO&Japio
JP55177188A 1980-12-17 1980-12-17 Preparation of elastic polyurethane Granted JPS57101016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55177188A JPS57101016A (en) 1980-12-17 1980-12-17 Preparation of elastic polyurethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55177188A JPS57101016A (en) 1980-12-17 1980-12-17 Preparation of elastic polyurethane

Publications (2)

Publication Number Publication Date
JPS57101016A true JPS57101016A (en) 1982-06-23
JPS6353287B2 JPS6353287B2 (en) 1988-10-21

Family

ID=16026709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55177188A Granted JPS57101016A (en) 1980-12-17 1980-12-17 Preparation of elastic polyurethane

Country Status (1)

Country Link
JP (1) JPS57101016A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972864A1 (en) * 1998-01-30 2000-01-19 Nisshinbo Industries, Inc. Process for producing polyurethane elastomer and elastic filament
WO2004053218A1 (en) * 2002-12-12 2004-06-24 Nisshinbo Industries, Inc. Blended woven or knitted fabrics containing polyurethane elastic fibers and process for the production thereof
US6852823B2 (en) 2002-08-09 2005-02-08 E. I. Du Pont De Nemours And Company Polyurethane and polyurethane-urea elastomers from polytrimethylene ether glycol

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972864A1 (en) * 1998-01-30 2000-01-19 Nisshinbo Industries, Inc. Process for producing polyurethane elastomer and elastic filament
US6252031B1 (en) 1998-01-30 2001-06-26 Nisshinbo Industries, Inc. Production process for producing polyurethane elastic material and elastic yarn
EP0972864A4 (en) * 1998-01-30 2002-11-06 Nisshin Spinning Process for producing polyurethane elastomer and elastic filament
US6852823B2 (en) 2002-08-09 2005-02-08 E. I. Du Pont De Nemours And Company Polyurethane and polyurethane-urea elastomers from polytrimethylene ether glycol
WO2004053218A1 (en) * 2002-12-12 2004-06-24 Nisshinbo Industries, Inc. Blended woven or knitted fabrics containing polyurethane elastic fibers and process for the production thereof

Also Published As

Publication number Publication date
JPS6353287B2 (en) 1988-10-21

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