ES322070A2 - Method of manufacturing mass of polymers and copolymers based on vinyl chloride in two stages. (Machine-translation by Google Translate, not legally binding) - Google Patents
Method of manufacturing mass of polymers and copolymers based on vinyl chloride in two stages. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES322070A2 ES322070A2 ES0322070A ES322070A ES322070A2 ES 322070 A2 ES322070 A2 ES 322070A2 ES 0322070 A ES0322070 A ES 0322070A ES 322070 A ES322070 A ES 322070A ES 322070 A2 ES322070 A2 ES 322070A2
- Authority
- ES
- Spain
- Prior art keywords
- autoclave
- constituted
- translation
- polymers
- stages
- 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
Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Improvements in the object of the main patent No. 297,059 on mass production process of polymers and copolymers based on vinyl chloride in two stages, characterized in that they consist of carrying out the operation of prepolymerization of the monomer composition in a prepolymerizer constituted by a autoclave provided with a stirring device capable of being operated at high speed, in particular of the turbine type, and then after the transfer of the monomer/polymer charge, the final polymerization operation in a sensibly vertical autoclave provided with a device agitation constituted by at least one tape wound in helical spirals in such a way that the helix diameter constituted by the outer edge of the tape is substantially lower than that of the autoclave and preferably close to half the diameter of the autoclave, said agitating device being fixed with helical type winding l by means of at least one support on a rotating shaft that penetrates the autoclave according to its axis and being driven at a slow rotational speed until the end of the homopolymerization or copolymerization reaction, the direction of winding of the turns of the agitation device and its direction of rotation so that the reaction medium is subjected to an upward movement in the central part of the autoclave and which falls back along the walls of the autoclave under the effect of gravity. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR34962A FR89025E (en) | 1963-03-01 | 1965-10-14 | Process for the mass preparation of polymers and copolymers based on vinyl chloride, in two stages, and variants of implementation of said process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES322070A2 true ES322070A2 (en) | 1966-11-16 |
Family
ID=59223959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0322070A Expired ES322070A2 (en) | 1965-10-14 | 1966-01-21 | Method of manufacturing mass of polymers and copolymers based on vinyl chloride in two stages. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES322070A2 (en) |
-
1966
- 1966-01-21 ES ES0322070A patent/ES322070A2/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD2A | Announcement of lapse in spain |
Effective date: 20170628 |