GB1009517A - High molecular weight condensation copolymers of alkylene polyamines and epihalohydrins - Google Patents
High molecular weight condensation copolymers of alkylene polyamines and epihalohydrinsInfo
- Publication number
- GB1009517A GB1009517A GB2295863A GB2295863A GB1009517A GB 1009517 A GB1009517 A GB 1009517A GB 2295863 A GB2295863 A GB 2295863A GB 2295863 A GB2295863 A GB 2295863A GB 1009517 A GB1009517 A GB 1009517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weight
- alkylenepolyamine
- molecular weight
- high molecular
- epihalohydrin
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/0206—Polyalkylene(poly)amines
- C08G73/0213—Preparatory process
- C08G73/022—Preparatory process from polyamines and epihalohydrins
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A method for preparing stable, epihalo hydrin-alkylenepolyamine condensation copolymers having a high molecular weight within the range of 10,000-20,000 comprises the steps of: slowly adding an epihalohydrin to an aqueous, concentrated, agitated solution of an alkylenepolyamine having a 25-60% concentration by weight to form an aqueous reaction mass thereof, the addition being at temperatures of 105 DEG to 185 DEG F. until the mol. ration of epihalohydrin to alkylenepolyamine is within the range of 1.4 : 1 to 2.2 : 1, further polymerizing the reaction mass, after the addition, within the range of 150-185 DEG F. while slowly simultaneously diluting the concentrated reaction mass to a final copolymer solids content of 10 to 30% by weight; and adding at least 0.2% by weight of the total reaction mass of a reducing agent to prevent further polymerization and gelation. High molecular weight condensation copolymeric compositions comprise aqueous solutions containing 10-30% by weight of an epihalohydrin-alkylenepolyamine condensation copolymer of molecular weight of 10,000 to 20,000 and at least a stabilizing amount of a reducing agent, the solution having a viscosity of at least 200 c.p.s., when measured as a 20% by weight aqueous solution of the copolymer at 75 DEG F. Epihalohydrins specified are epichlorohydrin, epibromohydrin and epi-iodohydrin; many alkylenepolyamines are specified which are alkylenediamines or polyalkylenepolyamines. Reducing agents specified are hydrogen sulphide, alkali metal sulphites, stannous chloride, hydriodic acid, ferrous chloride and sulphur dioxide. The copolymers are useful as precipitants for the clarification of water.ALSO:High molecular weight (10,000-20,000) epihalohydrin-alkylenepolyamine condensation copolymers are used as coagulants in the clarification of water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20926262A | 1962-07-11 | 1962-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1009517A true GB1009517A (en) | 1965-11-10 |
Family
ID=22778051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2295863A Expired GB1009517A (en) | 1962-07-11 | 1963-06-10 | High molecular weight condensation copolymers of alkylene polyamines and epihalohydrins |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1520424A1 (en) |
| GB (1) | GB1009517A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3607963A1 (en) * | 1986-03-11 | 1987-09-17 | Bayer Ag | CONDENSATION PRODUCTS AND METHOD FOR TREATING DYED POLYAMIDES |
-
1963
- 1963-06-10 GB GB2295863A patent/GB1009517A/en not_active Expired
- 1963-07-05 DE DE19631520424 patent/DE1520424A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1520424A1 (en) | 1970-03-26 |
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