GB1109874A - Improvements relating to the production of spandex filaments - Google Patents
Improvements relating to the production of spandex filamentsInfo
- Publication number
- GB1109874A GB1109874A GB3466764A GB3466764A GB1109874A GB 1109874 A GB1109874 A GB 1109874A GB 3466764 A GB3466764 A GB 3466764A GB 3466764 A GB3466764 A GB 3466764A GB 1109874 A GB1109874 A GB 1109874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ocn
- nco
- mol
- solution
- mixture
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
- C08G18/8003—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen
- C08G18/8006—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32
- C08G18/8009—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203
- C08G18/8012—Masked polyisocyanates masked with compounds having at least two groups containing active hydrogen with compounds of C08G18/32 with compounds of C08G18/3203 with diols
- C08G18/8019—Masked aromatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Artificial Filaments (AREA)
Abstract
In making a spandex polymer in filament form by extruding a solution of a spandex precursor into a coagulating bath containing a difunctional compound reactive with isocyanate groups, the precursor is made by reacting a linear hydroxyl-terminated polyester or polyether with an excess of a major proportion of OCN-R-NCO, wherein R is a divalent hydrocarbon (h.c.) radical and a minor proportion of OCN-R1-R2-R3-R2-R1-NCO, wherei R1 is a divalent organic radical, R2 is -NH-CO-NH-, -NH-NH-CO-, -NH-CO-O- or -NH-CO-, and R3 is a divalent h.c.. Suitable isocyanates of the second formula can be made by reacting 1 mol of HO-R3-OH with 2 mols of OCN-R1-NCO to yield OCN-R1-NH-CO-O-R3-O-CO-NH-R1-NCO. In examples, ethylene glycol and p,p1-diphenylmethane diisocyanate were heated together in dimethyl formamide to produce a mixture of 1 mol of <FORM:1109874/C3/1> and 1/2 mol of the diphenyl methane diisocyanate. Thi mixture and a further 2 mols of the original isocyanate were added to a linear hydroxy-terminated polyester made by heating ethylene glycol, propylene glycol and adipic acid, the reaction mixture was diluted with tetrahydrofuran and the solution was extruded into an isopropanol solution of ethylene diamine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3466764A GB1109874A (en) | 1964-08-25 | 1964-08-25 | Improvements relating to the production of spandex filaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3466764A GB1109874A (en) | 1964-08-25 | 1964-08-25 | Improvements relating to the production of spandex filaments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1109874A true GB1109874A (en) | 1968-04-18 |
Family
ID=10368478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3466764A Expired GB1109874A (en) | 1964-08-25 | 1964-08-25 | Improvements relating to the production of spandex filaments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1109874A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2311813A1 (en) * | 1975-05-19 | 1976-12-17 | Ici Ltd | STABLE LIQUID COMPOSITION OF DIPHENYL-METHANE DIISOCYANATE AND ITS OBTAINING |
| CN107827780A (en) * | 2017-10-18 | 2018-03-23 | 常州大学 | A kind of increasing reaction method of poly phenol oxygen/polyamide blended material |
-
1964
- 1964-08-25 GB GB3466764A patent/GB1109874A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2311813A1 (en) * | 1975-05-19 | 1976-12-17 | Ici Ltd | STABLE LIQUID COMPOSITION OF DIPHENYL-METHANE DIISOCYANATE AND ITS OBTAINING |
| CN107827780A (en) * | 2017-10-18 | 2018-03-23 | 常州大学 | A kind of increasing reaction method of poly phenol oxygen/polyamide blended material |
| CN107827780B (en) * | 2017-10-18 | 2020-05-26 | 常州大学 | Reactive compatibilization method of poly (phenol oxy)/polyamide blended material |
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