FR2322831B1 - - Google Patents
Info
- Publication number
- FR2322831B1 FR2322831B1 FR7626828A FR7626828A FR2322831B1 FR 2322831 B1 FR2322831 B1 FR 2322831B1 FR 7626828 A FR7626828 A FR 7626828A FR 7626828 A FR7626828 A FR 7626828A FR 2322831 B1 FR2322831 B1 FR 2322831B1
- Authority
- FR
- France
- 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
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61095275A | 1975-09-08 | 1975-09-08 | |
| US68975576A | 1976-05-25 | 1976-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2322831A1 FR2322831A1 (fr) | 1977-04-01 |
| FR2322831B1 true FR2322831B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-04-30 |
Family
ID=27086397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7626828A Granted FR2322831A1 (fr) | 1975-09-08 | 1976-09-07 | Copolymeres de styrene sulfone et d'anhydride maleique pour le controle de la formation et du depot de tartre, de boue et, en particulier, de phosphate de calcium dans des milieux aqueux |
Country Status (4)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048066A (en) * | 1976-11-17 | 1977-09-13 | Chemed Corporation | Method of inhibiting scale |
| CA1114978A (en) * | 1978-06-15 | 1981-12-22 | Chih M. Hwa | Sludge conditioning composition for scale inhibition in water |
| CA1118990A (en) * | 1979-01-30 | 1982-03-02 | John A. Gray | Molybdate-amine corrosion inhibitor |
| US4306991A (en) | 1979-09-18 | 1981-12-22 | Chemed Corporation | Scale inhibition |
| US4255259A (en) | 1979-09-18 | 1981-03-10 | Chemed Corporation | Scale inhibition |
| CA1151498A (en) * | 1979-10-23 | 1983-08-09 | Dearborn Chemicals Ltd. | Treatment of aqueous systems |
| US4836933A (en) * | 1987-01-16 | 1989-06-06 | National Starch And Chemical Corporation | Water treatment polymer |
| CN110713864B (zh) | 2018-07-13 | 2023-09-26 | Bl 科技公司 | 防污分散剂组合物和使用方法 |
-
1976
- 1976-08-23 CA CA259,627A patent/CA1062983A/en not_active Expired
- 1976-09-07 FR FR7626828A patent/FR2322831A1/fr active Granted
- 1976-09-07 NL NL7609910A patent/NL164538C/xx not_active IP Right Cessation
- 1976-09-08 GB GB3712576A patent/GB1534596A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL164538C (nl) | 1981-01-15 |
| GB1534596A (en) | 1978-12-06 |
| NL164538B (nl) | 1980-08-15 |
| NL7609910A (nl) | 1977-03-10 |
| FR2322831A1 (fr) | 1977-04-01 |
| CA1062983A (en) | 1979-09-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |