GB636385A - Improvements in or relating to the art of polymerization and method of polymerizing vinylidene-group-containing liquid monomeric compounds - Google Patents
Improvements in or relating to the art of polymerization and method of polymerizing vinylidene-group-containing liquid monomeric compoundsInfo
- Publication number
- GB636385A GB636385A GB9437/46A GB943746A GB636385A GB 636385 A GB636385 A GB 636385A GB 9437/46 A GB9437/46 A GB 9437/46A GB 943746 A GB943746 A GB 943746A GB 636385 A GB636385 A GB 636385A
- Authority
- GB
- United Kingdom
- Prior art keywords
- monomer
- vinyl
- polymer
- isobutyl
- insoluble
- 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
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
Monomers containing a vinylidene group such as vinyl chloride or bromide, vinylidene chloride and acrylonitrile are polymerized in a liquid state in an inert liquid medium, such as water, containing a dissolved polymerization catalyst such as potassium or ammonium persulphate or sodium peracetate but no emulsifier or like foreign ingredient, the medium being agitated so as to suspend the monomer in small globules, the temperature being between 25 DEG and 100 DEG C. and the pressure being kept at a value not substantially higher than the saturated vapour pressure of the monomer. The resulting granular polymer is insoluble in the monomer and the catalyst is insoluble in both monomer and polymer. Other monomers such as ethyl b - chloroacrylate, dimethyl maleate, diallyl succinate and isobutyl methacrylate may also be present. From 1 to 15 per cent of a plasticizer such as dibutyl phthalate may be added to the reaction mixture. After separating the globules of the resulting polymer the liquid which remains may be employed as the inert liquid medium for another batch. Specifications 410,132, 518,704 and 579,881 are referred to. The Specification as open to inspection under Sect. 91 comprises also the use of styrene, vinyl acetate or butyrate, vinyl ethyl ether, vinyl isobutyl ether, methyl acrylate and methyl and isobutyl methacrylates. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US929508XA | 1945-08-31 | 1945-08-31 | |
US636385XA | 1945-08-31 | 1945-08-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB636385A true GB636385A (en) | 1950-04-26 |
Family
ID=40406587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9437/46A Expired GB636385A (en) | 1945-08-31 | 1946-03-27 | Improvements in or relating to the art of polymerization and method of polymerizing vinylidene-group-containing liquid monomeric compounds |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE929508C (en) |
GB (1) | GB636385A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054685A2 (en) * | 1980-12-23 | 1982-06-30 | Roche Diagnostics GmbH | Hydrophilic latex particles, process for their preparation and their use |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL221427A (en) * | 1956-10-09 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB300167A (en) * | 1927-11-07 | 1929-06-04 | I. G. Farbenindustrie Aktiengesellschaft | |
DE675032C (en) * | 1930-08-12 | 1939-04-27 | Roehm & Haas G M B H | Process for the preparation of conversion products of methacrylic acid or its derivatives |
DE656134C (en) * | 1931-05-31 | 1938-01-29 | Roehm & Haas Akt Ges | Process for polymerizing acrylic acid esters and their homologues to solid polymers |
US2135443A (en) * | 1933-12-30 | 1938-11-01 | Du Pont | Process of manufacturing polymerization products |
GB494772A (en) * | 1937-05-06 | 1938-11-01 | Ig Farbenindustrie Ag | Manufacture of polymerisation products |
DE708639C (en) * | 1937-09-28 | 1941-07-25 | Roehm & Haas G M B H | Polymerization of acrylic compounds in an aqueous medium |
US2235782A (en) * | 1939-04-01 | 1941-03-18 | Dow Chemical Co | Soluble co-polymers of vinyl chloride and vinylidene chloride |
US2436926A (en) * | 1943-08-02 | 1948-03-02 | Du Pont | Polymerization of acrylic acid nitriles |
GB579379A (en) * | 1943-09-07 | 1946-08-01 | Leonard Fallows | Polymerisation of acrylic acid derivatives |
-
1946
- 1946-03-27 GB GB9437/46A patent/GB636385A/en not_active Expired
-
1950
- 1950-03-31 DE DEU178A patent/DE929508C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0054685A2 (en) * | 1980-12-23 | 1982-06-30 | Roche Diagnostics GmbH | Hydrophilic latex particles, process for their preparation and their use |
EP0054685A3 (en) * | 1980-12-23 | 1982-12-08 | Boehringer Mannheim Gmbh | Hydrophilic latex particles, process for their preparation and their use |
Also Published As
Publication number | Publication date |
---|---|
DE929508C (en) | 1955-07-25 |
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