IT1027292B - Procedimento per la preparazione di polimeri idrosolubili - Google Patents
Procedimento per la preparazione di polimeri idrosolubiliInfo
- Publication number
- IT1027292B IT1027292B IT67077/75A IT6707775A IT1027292B IT 1027292 B IT1027292 B IT 1027292B IT 67077/75 A IT67077/75 A IT 67077/75A IT 6707775 A IT6707775 A IT 6707775A IT 1027292 B IT1027292 B IT 1027292B
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- preparation
- water
- soluble polymers
- polymers
- Prior art date
Links
- 229920003169 water-soluble polymer Polymers 0.000 title 1
Classifications
-
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/52—Amides or imides
- C08F20/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F20/56—Acrylamide; Methacrylamide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49008069A JPS5246276B2 (it) | 1974-01-16 | 1974-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1027292B true IT1027292B (it) | 1978-11-20 |
Family
ID=11683040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT67077/75A IT1027292B (it) | 1974-01-16 | 1975-01-15 | Procedimento per la preparazione di polimeri idrosolubili |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3969329A (it) |
| JP (1) | JPS5246276B2 (it) |
| CA (1) | CA1038986A (it) |
| CH (1) | CH599257A5 (it) |
| DE (1) | DE2501615A1 (it) |
| FI (1) | FI59418C (it) |
| FR (1) | FR2257613B1 (it) |
| GB (1) | GB1462331A (it) |
| IT (1) | IT1027292B (it) |
| NL (1) | NL7500384A (it) |
| SE (1) | SE411214B (it) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2545007B2 (de) * | 1975-10-08 | 1977-08-11 | Wolff Walsrode Ag, 3030 Walsrode | Lineares, hochmolekulares acrylamid-homopolymerisat und seine verwendung als hilfsmittel zur verbesserung der retention, entwaesserung und aufbereitung |
| US4118355A (en) * | 1977-04-28 | 1978-10-03 | Betz Laboratories, Inc. | Method and composition of a polymer in convenient liquid form |
| US4393163A (en) * | 1977-12-14 | 1983-07-12 | Nitto Chemical Industry, Co., Ltd. | Method for stabilizing an acrylamide polymer in a petroleum recovery process |
| SU1356964A3 (ru) * | 1977-12-14 | 1987-11-30 | Нитто Кемикал Индастри Ко. Лтд (Фирма) | Способ стабилизации водного раствора полиакриламида или частично гидролизованного полиакриламида или сополимера акриламида с метакриловой кислотой |
| JPS55721A (en) * | 1978-06-19 | 1980-01-07 | Showa Denko Kk | Aqueous dispersion of water-soluble high polymer complex |
| JPS581681B2 (ja) * | 1978-09-02 | 1983-01-12 | 三井東圧化学株式会社 | 水溶性重合体の製造法 |
| JPS608688B2 (ja) * | 1979-06-13 | 1985-03-05 | 日東化学工業株式会社 | アクリルアミド系重合体の製造方法 |
| JPS608689B2 (ja) * | 1979-08-21 | 1985-03-05 | 日東化学工業株式会社 | アクリルアミド系重合体の製造法 |
| US4282340A (en) * | 1980-01-11 | 1981-08-04 | Basf Wyandotte Corporation | Polymerization process for preparation of acrylamide homopolymers with redox catalyst |
| DE3631070A1 (de) * | 1986-09-12 | 1988-03-24 | Basf Ag | Verfahren zur herstellung von terpolymeren |
| DE3801736A1 (de) * | 1988-01-21 | 1989-07-27 | Nitrokemia Ipartelepek | Verfahren zur herstellung von acrylsaeureamid/acrylsaeure-copolymeren mit hohem molekulargewicht |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2289540A (en) * | 1939-04-18 | 1942-07-14 | Du Pont | Polymerization of water soluble polymers |
| US2741652A (en) * | 1952-06-05 | 1956-04-10 | Celanese Corp | Production of copolymers |
| US3200098A (en) * | 1961-02-28 | 1965-08-10 | Kerr Mc Gee Oil Ind Inc | Polymerization of acrylamide monomer in the presence of free ammonia and the resulting polyacrylamide product |
| US3336269A (en) * | 1964-04-07 | 1967-08-15 | Hercules Inc | Preparation of acrylamide-type water-soluble polymers |
| US3336270A (en) * | 1964-07-20 | 1967-08-15 | Hercules Inc | Preparation of acrylamide-type water-soluble polymers |
| US3509113A (en) * | 1967-08-14 | 1970-04-28 | Hercules Inc | Preparation of acrylamide-type water-soluble polymers |
| US3617573A (en) * | 1969-11-03 | 1971-11-02 | Hercules Inc | Water-soluble copolymers in flocculation of inorganic particles |
| US3681215A (en) * | 1970-05-28 | 1972-08-01 | Du Pont | Manufacture of acrylamide-based polymers in liquid ammonia |
-
1974
- 1974-01-16 JP JP49008069A patent/JPS5246276B2/ja not_active Expired
-
1975
- 1975-01-13 CA CA217,791A patent/CA1038986A/en not_active Expired
- 1975-01-13 NL NL7500384A patent/NL7500384A/xx not_active Application Discontinuation
- 1975-01-15 SE SE7500406A patent/SE411214B/xx unknown
- 1975-01-15 GB GB171075A patent/GB1462331A/en not_active Expired
- 1975-01-15 FI FI750088A patent/FI59418C/fi not_active IP Right Cessation
- 1975-01-15 CH CH44875A patent/CH599257A5/xx not_active IP Right Cessation
- 1975-01-15 FR FR7501133A patent/FR2257613B1/fr not_active Expired
- 1975-01-15 IT IT67077/75A patent/IT1027292B/it active
- 1975-01-16 US US05/541,623 patent/US3969329A/en not_active Expired - Lifetime
- 1975-01-16 DE DE19752501615 patent/DE2501615A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CH599257A5 (it) | 1978-05-31 |
| SE7500406L (it) | 1975-07-17 |
| GB1462331A (en) | 1977-01-26 |
| NL7500384A (nl) | 1975-07-18 |
| JPS50102687A (it) | 1975-08-14 |
| CA1038986A (en) | 1978-09-19 |
| JPS5246276B2 (it) | 1977-11-22 |
| FI750088A (it) | 1975-07-17 |
| FI59418C (fi) | 1981-08-10 |
| DE2501615A1 (de) | 1975-09-11 |
| FR2257613B1 (it) | 1978-02-03 |
| SE411214B (sv) | 1979-12-10 |
| FR2257613A1 (it) | 1975-08-08 |
| FI59418B (fi) | 1981-04-30 |
| US3969329A (en) | 1976-07-13 |
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