MX4979E - IMPROVED PROCEDURE FOR 2-PIRROLIDONE POLYMERIZATION - Google Patents
IMPROVED PROCEDURE FOR 2-PIRROLIDONE POLYMERIZATIONInfo
- Publication number
- MX4979E MX4979E MX657877U MX657877U MX4979E MX 4979 E MX4979 E MX 4979E MX 657877 U MX657877 U MX 657877U MX 657877 U MX657877 U MX 657877U MX 4979 E MX4979 E MX 4979E
- Authority
- MX
- Mexico
- Prior art keywords
- pirrolidone
- polymerization
- improved procedure
- procedure
- improved
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/24—Pyrrolidones or piperidones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyamides (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Pyrrole Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/745,501 US4050994A (en) | 1976-11-26 | 1976-11-26 | Recovery of 2-pyrrolidone from dilute alkaline solutions |
US05/792,421 US4139696A (en) | 1977-04-29 | 1977-04-29 | Continuous polymerization of 2-pyrrolidone |
Publications (1)
Publication Number | Publication Date |
---|---|
MX4979E true MX4979E (en) | 1983-01-28 |
Family
ID=27114468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX657877U MX4979E (en) | 1976-11-26 | 1977-11-24 | IMPROVED PROCEDURE FOR 2-PIRROLIDONE POLYMERIZATION |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5367798A (en) |
DE (1) | DE2751535A1 (en) |
ES (1) | ES464485A1 (en) |
FR (2) | FR2382471A1 (en) |
GB (1) | GB1592178A (en) |
IT (1) | IT1087943B (en) |
MX (1) | MX4979E (en) |
NL (1) | NL7713024A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1566154A1 (en) | 2004-02-20 | 2005-08-24 | Argomedical AG | Prosthesis for surface replacement in the area of the ball of ball bearings |
KR101568908B1 (en) * | 2013-12-02 | 2015-11-12 | 지에스칼텍스 주식회사 | Apparatus and method for manufacturing particulate polyamide resin |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3681293A (en) * | 1970-09-03 | 1972-08-01 | Radiation Res Corp | Continuous polymerization of 2-pyrrolidone with carbon dioxide as activator |
-
1977
- 1977-11-18 DE DE19772751535 patent/DE2751535A1/en not_active Withdrawn
- 1977-11-18 FR FR7734795A patent/FR2382471A1/en active Granted
- 1977-11-24 MX MX657877U patent/MX4979E/en unknown
- 1977-11-25 NL NL7713024A patent/NL7713024A/en not_active Application Discontinuation
- 1977-11-25 GB GB4925777A patent/GB1592178A/en not_active Expired
- 1977-11-25 ES ES464485A patent/ES464485A1/en not_active Expired
- 1977-11-25 JP JP14080177A patent/JPS5367798A/en active Granted
- 1977-11-25 IT IT3006577A patent/IT1087943B/en active
-
1978
- 1978-05-16 FR FR7814465A patent/FR2382442A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
NL7713024A (en) | 1978-05-30 |
FR2382471B1 (en) | 1981-01-02 |
FR2382442B1 (en) | 1981-01-16 |
JPS5731742B2 (en) | 1982-07-06 |
JPS5367798A (en) | 1978-06-16 |
FR2382471A1 (en) | 1978-09-29 |
FR2382442A1 (en) | 1978-09-29 |
GB1592178A (en) | 1981-07-01 |
IT1087943B (en) | 1985-06-04 |
ES464485A1 (en) | 1979-01-01 |
DE2751535A1 (en) | 1978-06-01 |
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