GB1332247A - Manufacture of watersoluble polymers - Google Patents
Manufacture of watersoluble polymersInfo
- Publication number
- GB1332247A GB1332247A GB2278771A GB2278771A GB1332247A GB 1332247 A GB1332247 A GB 1332247A GB 2278771 A GB2278771 A GB 2278771A GB 2278771 A GB2278771 A GB 2278771A GB 1332247 A GB1332247 A GB 1332247A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- belt
- radiation
- soluble
- polymers
- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
Abstract
1332247 Photopolymerizing water-soluble monomers BADISCHE ANILIN- & SODAFABRIK AG 19 April 1971 [3 March 1970] 22787/71 Heading C3P In the preparation of water-soluble polymers by radiation-induced polymerization of aqueous solutions of unsaturated monomers which yield water-soluble polymers, optionally with up to 15 weight per cent of comonomers which yield polymers which are sparingly soluble in water, and at least 50% w./w. aqueous solution of the monomer is irradiated with photochemically active radiation while in the form of a layer of thickness not exceeding 2 cm. supported on a substrate which is moving across the beam of radiation. The substrate may be an endless belt, the temperature of which may be controlled in a radiation zone. The monomer may be acrylamide, acrylic acid, methacrylic acid, an olefinically unsaturated sulphonic acid or an N-vinyl lactam. Photopolymerization initiators, e.g. vicinal ketaldonyl compounds, uranyl salts and peroxide/variable valence metal systems; and solid substances which decompose at 60 to 110‹ C., e.g. ammonium bicarbonate; may also be present. In an example N-vinyl pyrrolidone is polymerized in aqueous solution in the presence of benzoin isopropyl ether, the solution being gassed with nitrogen, poured on to an endless metal belt and irradiated with light from fluorescent lamps. In the final stage the belt is cooled to - 20‹ C. whereby the viscous polymer is solidified and separated from the belt as it passes over the return roller. The products may be used as flocculants and in pharmaceutical and cosmetic preparations.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702009748 DE2009748A1 (en) | 1970-03-03 | 1970-03-03 | Process for the production of water-soluble polymers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1332247A true GB1332247A (en) | 1973-10-03 |
Family
ID=5763822
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2278771A Expired GB1332247A (en) | 1970-03-03 | 1971-04-19 | Manufacture of watersoluble polymers |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA943904A (en) |
DE (1) | DE2009748A1 (en) |
FR (1) | FR2084010A5 (en) |
GB (1) | GB1332247A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141806A (en) | 1976-01-07 | 1979-02-27 | Bayer Aktiengesellschaft | Bulk photo polymerization process for esters of acrylic and methacrylic acids |
US4178221A (en) | 1976-04-14 | 1979-12-11 | Rhone-Poulenc Industries | Process for the preparation of water-soluble acrylic polymers by photopolymerization |
US4614827A (en) * | 1983-07-20 | 1986-09-30 | Rohm Gmbh | Method for isolating vinyl salt compounds from aqueous solutions |
US5185385A (en) * | 1987-01-13 | 1993-02-09 | Texaco Chemical Company | Polymerization process |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428054A1 (en) * | 1978-06-09 | 1980-01-04 | Rhone Poulenc Ind | PHOTOPOLYMERIZATION PROCESS FOR FLOCCULATING POLYMERS |
FR2428053A2 (en) * | 1978-06-09 | 1980-01-04 | Rhone Poulenc Ind | PHOTOPOLYMERIZATION PROCESS FOR FLOCCULATING POLYMERS |
FR2453185A1 (en) * | 1979-04-05 | 1980-10-31 | Rhone Poulenc Ind | PROCESS FOR THE PREPARATION OF WATER-SOLUBLE ACRYLIC POLYMERS OR COPOLYMERS WITH HIGH MOLECULAR WEIGHT AND LOW MONOMER (S) CONTENT |
FR2489336B1 (en) | 1980-09-04 | 1985-09-13 | Rhone Poulenc Spec Chim | PROCESS FOR THE PREPARATION OF WATER-SOLUBLE POLYMERS OR COPOLYMERS WITH HIGH MOLECULAR WEIGHT AND WITH LOW RESIDUAL MONOMER (S) CONTENT FROM OLEFINICALLY UNSATURATED MONOMERS |
CA1246789A (en) * | 1984-01-13 | 1988-12-13 | Akira Yada | Process for preparing water-soluble polymers |
CA1268732C (en) * | 1984-12-27 | 1990-05-08 | Radiation-polymerizing water-soluble cast vinyl monomer layer and forming particles | |
DE3544770A1 (en) * | 1985-12-18 | 1987-06-19 | Stockhausen Chem Fab Gmbh | METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF POLYMERISATES AND COPOLYMERISATES OF ACRYLIC ACID AND / OR METHACRYLIC ACID |
-
1970
- 1970-03-03 DE DE19702009748 patent/DE2009748A1/en active Pending
-
1971
- 1971-02-23 CA CA106,104A patent/CA943904A/en not_active Expired
- 1971-03-01 FR FR7106891A patent/FR2084010A5/fr not_active Expired
- 1971-04-19 GB GB2278771A patent/GB1332247A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4141806A (en) | 1976-01-07 | 1979-02-27 | Bayer Aktiengesellschaft | Bulk photo polymerization process for esters of acrylic and methacrylic acids |
US4178221A (en) | 1976-04-14 | 1979-12-11 | Rhone-Poulenc Industries | Process for the preparation of water-soluble acrylic polymers by photopolymerization |
US4614827A (en) * | 1983-07-20 | 1986-09-30 | Rohm Gmbh | Method for isolating vinyl salt compounds from aqueous solutions |
US5185385A (en) * | 1987-01-13 | 1993-02-09 | Texaco Chemical Company | Polymerization process |
Also Published As
Publication number | Publication date |
---|---|
DE2009748A1 (en) | 1971-09-16 |
FR2084010A5 (en) | 1971-12-17 |
CA943904A (en) | 1974-03-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |