GB714628A - A process for the polymerisation or copolymerisation of substances having one olefinic bond and the resulting polymers - Google Patents
A process for the polymerisation or copolymerisation of substances having one olefinic bond and the resulting polymersInfo
- Publication number
- GB714628A GB714628A GB5269/52A GB526952A GB714628A GB 714628 A GB714628 A GB 714628A GB 5269/52 A GB5269/52 A GB 5269/52A GB 526952 A GB526952 A GB 526952A GB 714628 A GB714628 A GB 714628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aqueous phase
- monomer
- substances
- phase
- olefinic bond
- 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
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
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)
Abstract
Substances with one olefinic bond are polymerized or copolymerized in a system having a continuous phase which comprises an aqueous solution of an emulsifier and a discontinouus phase which comprises the olefinically unsaturated substance or substances, the concentrations in the aqueous phase of polymer and monomer at the end of polymerization being respectively less than 10 per cent. by weight and less than 7 per cent. by weight. The monomer may be emulsified in the aqueous phase or there may be p utilized a process in which an upper layer of monomer rests on the aqueous phase in which by stirring, drops of monomer are flung from the upper layer into the aqueous phase. The process of Specification 687,984 may also be used. Polymerization may be carried out in a batch or continuous process. Monomers specified are vinyl chloride, vinyl acetate, styrene, methyl acrylate and methacrylate, vinylidene chloride and methacrylonitrile. In Examples, sodium mersolate is used as emulsifier, the catalyst employed is potassium persulphate or ammonium persulphate, the latter being used in conjunction with sodium sulphite, and sodium bicarbonate is also present in the aqueous phase. Specifications 643,169, 707,115, 707,116, and 707,117 also are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL714628X | 1951-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB714628A true GB714628A (en) | 1954-09-01 |
Family
ID=19814910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5269/52A Expired GB714628A (en) | 1951-02-28 | 1952-02-28 | A process for the polymerisation or copolymerisation of substances having one olefinic bond and the resulting polymers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB714628A (en) |
-
1952
- 1952-02-28 GB GB5269/52A patent/GB714628A/en not_active Expired
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