JPS56112511A - Production of polyurethane elastic yarn - Google Patents
Production of polyurethane elastic yarnInfo
- 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
Links
Landscapes
- Artificial Filaments (AREA)
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
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)
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 |
-
1980
- 1980-02-06 JP JP1404180A patent/JPS5844764B2/en not_active Expired
Cited By (4)
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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