BR8504744A - Processo para precipitacao de carbamato de celulose de uma solucao alcalina - Google Patents
Processo para precipitacao de carbamato de celulose de uma solucao alcalinaInfo
- Publication number
- BR8504744A BR8504744A BR8504744A BR8504744A BR8504744A BR 8504744 A BR8504744 A BR 8504744A BR 8504744 A BR8504744 A BR 8504744A BR 8504744 A BR8504744 A BR 8504744A BR 8504744 A BR8504744 A BR 8504744A
- Authority
- BR
- Brazil
- Prior art keywords
- precipitation
- alkaline solution
- cellulose carbamate
- carbamate
- cellulose
- Prior art date
Links
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 title 1
- 239000012670 alkaline solution Substances 0.000 title 1
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000001556 precipitation Methods 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/05—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur
- C08B15/06—Derivatives containing elements other than carbon, hydrogen, oxygen, halogens or sulfur containing nitrogen, e.g. carbamates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B3/00—Preparation of cellulose esters of organic acids
- C08B3/14—Preparation of cellulose esters of organic acids in which the organic acid residue contains substituents, e.g. NH2, Cl
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI843812A FI69851C (fi) | 1984-09-27 | 1984-09-27 | Foerfarande foer utfaellning av cellulosakarbamat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR8504744A true BR8504744A (pt) | 1986-07-22 |
Family
ID=8519660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR8504744A BR8504744A (pt) | 1984-09-27 | 1985-09-26 | Processo para precipitacao de carbamato de celulose de uma solucao alcalina |
Country Status (17)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19721609A1 (de) | 1997-05-23 | 1998-11-26 | Zimmer Ag | Verfahren und Vorrichtung zum Verspinnen von Cellulosecarbamat-Lösungen |
| DE102004007616B4 (de) * | 2004-02-17 | 2005-12-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zur Herstellung von Fasern und anderen Formkörpern aus Cellulosecarbamat und/oder regenerierter Cellulose |
| EP3521248A1 (en) * | 2013-07-01 | 2019-08-07 | TreeToTextile AB | Alkali recycle in cellulose spinning process |
| CN116163025A (zh) * | 2023-03-24 | 2023-05-26 | 赣南师范大学 | 含天然高分子的溶液凝固成型方法和长纤维纺丝方法 |
| CN117026395A (zh) * | 2023-08-08 | 2023-11-10 | 赣南师范大学 | 一种基于湿法纺丝制备再生纤维素纤维的方法及再生纤维素纤维 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB323747A (en) * | 1928-07-02 | 1930-01-02 | Leon Lilienfeld | Process for coagulating or precipitating viscose |
| NL55623C (enrdf_load_stackoverflow) * | 1935-05-15 | |||
| GB516672A (en) * | 1937-08-30 | 1940-01-09 | Du Pont | Improvements in or relating to the production of cellulose derivatives |
| FI64603C (fi) * | 1981-12-30 | 1983-12-12 | Neste Oy | Foerfarande foer utfaellning av cellulosaderivat |
| FI67561C (fi) * | 1982-12-08 | 1985-04-10 | Neste Oy | Foerfarande foer upploesning av cellulosakarbamat |
| FI66624C (fi) * | 1983-11-02 | 1984-11-12 | Neste Oy | Foerfarande foer framstaellning av cellulosakarbamatfibrer eller -filmer |
-
1984
- 1984-09-27 FI FI843812A patent/FI69851C/fi not_active IP Right Cessation
-
1985
- 1985-09-18 ZA ZA857172A patent/ZA857172B/xx unknown
- 1985-09-19 NO NO853673A patent/NO162909C/no unknown
- 1985-09-20 CS CS673085A patent/CS274607B2/cs unknown
- 1985-09-23 IN IN673/CAL/85A patent/IN164916B/en unknown
- 1985-09-24 IT IT8522254A patent/IT1215310B/it active
- 1985-09-25 DD DD85281018A patent/DD238984A5/de not_active IP Right Cessation
- 1985-09-26 BR BR8504744A patent/BR8504744A/pt not_active IP Right Cessation
- 1985-09-26 SE SE8504455A patent/SE8504455L/ not_active Application Discontinuation
- 1985-09-26 CA CA000491569A patent/CA1266467A/en not_active Expired - Fee Related
- 1985-09-26 SU SU853957508A patent/SU1535384A3/ru active
- 1985-09-26 DE DE19853534370 patent/DE3534370A1/de active Granted
- 1985-09-26 AT AT0280685A patent/AT391709B/de not_active IP Right Cessation
- 1985-09-27 GB GB08523913A patent/GB2164941B/en not_active Expired
- 1985-09-27 FR FR8514366A patent/FR2570705B1/fr not_active Expired
- 1985-09-27 JP JP60214407A patent/JPS6189201A/ja active Granted
- 1985-09-27 RO RO120224A patent/RO92933B/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO92933B (ro) | 1988-03-31 |
| SE8504455D0 (sv) | 1985-09-26 |
| NO853673L (no) | 1986-04-01 |
| FI69851B (fi) | 1985-12-31 |
| IN164916B (enrdf_load_stackoverflow) | 1989-07-08 |
| RO92933A (ro) | 1988-03-30 |
| GB2164941B (en) | 1988-10-12 |
| CS274607B2 (en) | 1991-09-15 |
| CA1266467A (en) | 1990-03-06 |
| ZA857172B (en) | 1986-05-28 |
| DE3534370C2 (enrdf_load_stackoverflow) | 1989-11-23 |
| SU1535384A3 (ru) | 1990-01-07 |
| NO162909B (no) | 1989-11-27 |
| JPS6189201A (ja) | 1986-05-07 |
| JPH0246601B2 (enrdf_load_stackoverflow) | 1990-10-16 |
| SE8504455L (sv) | 1986-03-28 |
| GB2164941A (en) | 1986-04-03 |
| FI69851C (fi) | 1986-05-26 |
| AT391709B (de) | 1990-11-26 |
| ATA280685A (de) | 1990-05-15 |
| DE3534370A1 (de) | 1986-04-03 |
| FI843812A0 (fi) | 1984-09-27 |
| DD238984A5 (de) | 1986-09-10 |
| FR2570705B1 (fr) | 1988-06-10 |
| IT1215310B (it) | 1990-01-31 |
| IT8522254A0 (it) | 1985-09-24 |
| CS673085A2 (en) | 1990-12-13 |
| FR2570705A1 (fr) | 1986-03-28 |
| NO162909C (no) | 1990-03-07 |
| GB8523913D0 (en) | 1985-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Lapse due to non-payment of fees (art. 50) |