GB1474232A - Production of a gel of a water-soluble polymer - Google Patents
Production of a gel of a water-soluble polymerInfo
- Publication number
- GB1474232A GB1474232A GB1925774A GB1925774A GB1474232A GB 1474232 A GB1474232 A GB 1474232A GB 1925774 A GB1925774 A GB 1925774A GB 1925774 A GB1925774 A GB 1925774A GB 1474232 A GB1474232 A GB 1474232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gel
- polymerization
- vessel
- water
- monomer
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- 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
- C08F2/04—Polymerisation in solution
- C08F2/10—Aqueous solvent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
1474232 Polymerization of water-soluble monomers into gels; recovering gels from reaction vessels NITTO KAGAKU KOGYO KK 2 May 1974 [2 May 1973 7 July 1973 2 Aug 1973 (2)] 19257/74 Heading C3P An aqueous solution of a water-soluble monomer is polymerized to form a gel by a process wherein: (i) the mass of gel is unagitated during polymerization, (ii) the temperature of the gel is permitted to rise due to the heat of polymerization, (iii) heat is supplied to the polymerization vessel to compensate for the heat sink properties of the vessel and auxiliaries and provide uniform temperature throughout, and (iv) the weight ratio of the monomer to the water is chosen so that the final gel will fall out of the polymerization vessel under its own weight. After polymerization the vessel is upended and the mass of gel is caused to collide with a rigid bar disposed between the vessel and a receptor for the gel so that the bar absorbs the energy of falling of the gel. The preferred monomer is acrylamide.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4950873A JPS5432176B2 (en) | 1973-05-02 | 1973-05-02 | |
JP7672273A JPS533427B2 (en) | 1973-07-07 | 1973-07-07 | |
JP8699373A JPS5146553B2 (en) | 1973-08-02 | 1973-08-02 | |
JP8699273A JPS5035282A (en) | 1973-08-02 | 1973-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1474232A true GB1474232A (en) | 1977-05-18 |
Family
ID=27462364
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1925774A Expired GB1474232A (en) | 1973-05-02 | 1974-05-02 | Production of a gel of a water-soluble polymer |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2421076C3 (en) |
FR (1) | FR2228075B1 (en) |
GB (1) | GB1474232A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4283517A (en) * | 1979-07-16 | 1981-08-11 | Milchem Incorporated | Continuous process for solution polymerization of acrylamide |
CA1268732C (en) * | 1984-12-27 | 1990-05-08 | Radiation-polymerizing water-soluble cast vinyl monomer layer and forming particles |
-
1974
- 1974-05-02 FR FR7415276A patent/FR2228075B1/fr not_active Expired
- 1974-05-02 DE DE19742421076 patent/DE2421076C3/en not_active Expired
- 1974-05-02 GB GB1925774A patent/GB1474232A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2421076B2 (en) | 1978-04-06 |
DE2421076C3 (en) | 1978-12-14 |
DE2421076A1 (en) | 1974-11-21 |
FR2228075B1 (en) | 1976-06-25 |
FR2228075A1 (en) | 1974-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930502 |