RO95682B1 - Process for obtaining modified acrylic fibres - Google Patents
Process for obtaining modified acrylic fibresInfo
- Publication number
- RO95682B1 RO95682B1 RO124504A RO12450486A RO95682B1 RO 95682 B1 RO95682 B1 RO 95682B1 RO 124504 A RO124504 A RO 124504A RO 12450486 A RO12450486 A RO 12450486A RO 95682 B1 RO95682 B1 RO 95682B1
- Authority
- RO
- Romania
- Prior art keywords
- ethylene carbonate
- modified acrylic
- obtaining modified
- dtex
- ratio
- Prior art date
Links
- 229920002972 Acrylic fiber Polymers 0.000 title abstract 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- SMUVTFSHWISULV-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;prop-2-enenitrile Chemical compound C=CC#N.COC(=O)C(C)=C SMUVTFSHWISULV-UHFFFAOYSA-N 0.000 abstract 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Artificial Filaments (AREA)
- Inorganic Fibers (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a fibrelor acrilice modificate, cu densitate de lungime mai mare de 11 dtex, tenacitate cuprinsa între 1,95 si 2,5 gf/dtex si rezistenta la bucla de 65%, destinate industriei covoarelor, utilizând drept solvent etilencarbonat, caracterizat prin aceea ca, în scopul reducerii noxelor, largirii gamei sortimentale si simplificarii conditiilor de lucru, un copolimer binar, format din 90,5 : 9,5 acrilonitril - metacrilat de metil, realizat prin polimerizare însuspensie cu catalizator redox persulfat + bisulfit, cu viscozitatea relativa (eta rel) 1,50 - 1,55, de preferinta, 1,55, solvent carbonat de etilena sau solutie apoasa de 70 - 95%, de preferinta 87,5%, se coaguleaza într-o baie care contine 10 - 20% etilencarbonat în apa, de preferinta 15%, la temperatura de 50 - 60 degree C, filamentele coagulate fiind etirate în stare de gel la un raport de 1 : 1 - 1 : 5 si în stare uscata la un raport de 1 : 1,3.The invention relates to a process for obtaining modified acrylic fibers with a density of more than 11 dtex, a tenacity between 1.95 and 2.5 gf / dtex and a loop strength of 65% for the carpet industry using ethylene carbonate solvent, characterized in that a binary copolymer consisting of 90.5: 9.5 acrylonitrile-methyl methacrylate, prepared by polymerization with the redox persulfate + catalyst, in order to reduce the noxiousness, the range of the range and the simplification of working conditions, bisulphite, with relative viscosity (rel rel) of 1.50-1.55, preferably 1.55, ethylene carbonate solvent or aqueous solution of 70-95%, preferably 87.5%, coagulate in a bath which contains 10-20% ethylene carbonate in water, preferably 15%, at 50-60 ° C, the coagulated filaments being gelled at a ratio of 1: 1 to 1: 5 and dried at a ratio 1: 1.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO124504A RO95682B1 (en) | 1986-08-12 | 1986-08-12 | Process for obtaining modified acrylic fibres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO124504A RO95682B1 (en) | 1986-08-12 | 1986-08-12 | Process for obtaining modified acrylic fibres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO95682A2 RO95682A2 (en) | 1988-10-30 |
| RO95682B1 true RO95682B1 (en) | 1988-10-31 |
Family
ID=20119758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO124504A RO95682B1 (en) | 1986-08-12 | 1986-08-12 | Process for obtaining modified acrylic fibres |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO95682B1 (en) |
-
1986
- 1986-08-12 RO RO124504A patent/RO95682B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO95682A2 (en) | 1988-10-30 |
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