SU138029A1 - The method of producing polycarbonates - Google Patents
The method of producing polycarbonatesInfo
- Publication number
- SU138029A1 SU138029A1 SU668664A SU668664A SU138029A1 SU 138029 A1 SU138029 A1 SU 138029A1 SU 668664 A SU668664 A SU 668664A SU 668664 A SU668664 A SU 668664A SU 138029 A1 SU138029 A1 SU 138029A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- producing polycarbonates
- polymer
- molecular weight
- solution
- diphenylolpropane
- Prior art date
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Description
Способ получени поликарбонатов из дифенилолпропана и раствора фосгена в метиленхлориде На границе раздела двух фаз в присутствии четвертичных аммонийных солей известен. С целью осуществлени непрерывности и возможности регулировани молекул рного веса полимера, процесс предложено вести в двухшнековой машине.The method of obtaining polycarbonates from diphenylolpropane and a solution of phosgene in methylene chloride. At the interface of two phases in the presence of quaternary ammonium salts, is known. In order to achieve continuity and the ability to regulate the molecular weight of the polymer, the process is proposed to be carried out in a twin-screw machine.
Предлагаемый способ получени поликарбонатов в отличие от известных вл етс непрерывным.The proposed method for producing polycarbonates, unlike the known ones, is continuous.
Особенность метода состоит в том, что реакци поликонденсации протекает в две стадии в двух апп аратах.The peculiarity of the method is that the polycondensation reaction proceeds in two stages in two apparatah.
Перва стади - смешивание реагирующих растворов и получение Низкомолекул рного продукта, в обычном сосуде с мешалкой.The first step is to mix the reacting solutions and obtain the Low Molecular Product, in an ordinary stirred vessel.
В сосуд непрерывно поступает раствор фосгена в метиленхлориде и водный раствор едкого натра и дифенилолпропана.The vessel is continuously fed a solution of phosgene in methylene chloride and an aqueous solution of caustic soda and diphenylolpropane.
Втора стади - поликонденсаци и получение продукта нужного молекул рного веса. Она протекает в тонком слое на разделе двух фаз в двухшнековой машине, забирающей жидкость из первого сосуда. В качестве катализатора при этом используетс четвертична аммониева соль.The second stage is polycondensation and obtaining the product of the desired molecular weight. It flows in a thin layer on the section of the two phases in a twin-screw machine that takes liquid from the first vessel. A quaternary ammonium salt is used as a catalyst.
На чертеже схематически изображена установка непрерывной поликонденсадии фосгена с ДФЛ (дифенилолпропаном).The drawing shows schematically the installation of continuous polycondensadia of phosgene with DFL (diphenylolpropane).
Из сосудов / и 2 растворы фоСгена и дифенилолщелочной раствор дифенилолпролана с определенной скоростью поступает в аппарат 3, Где мгновенно образуетс низкомолекул рный полимер. Затем из а:;царата низкомолекул рный продукт непрерывно засасываетс двухщнековой машиной 4.From the vessels and / and 2 solutions of foSgene and the diphenylol-alkaline solution of diphenylol-prolane, with a certain speed enters the apparatus 3, where a low-molecular polymer is instantly formed. Then, from a: Carata, the low molecular weight product is continuously sucked in by a twin-screw machine 4.
Одновременно дозирующий насос по трубке 5 подает раствор катализатора в полость машины через штуцер 6. Образовавшийс высокомолекул рный полимер отводитс в непрерывнодействующие аппараты дл дальнейшей обработки полимера.At the same time, the metering pump through tube 5 feeds the catalyst solution into the cavity of the machine through fitting 6. The resulting high molecular weight polymer is discharged into continuous machines for further processing of the polymer.
Предмет изобретени Subject invention
Способ получени поликарбонатов из дифенилолпропана и- раствора фосгена в метиленхлориде на границе раздела двух фаз в присутствии четвертичных аммонийных солей, отличающийс тем, что, с целью осуществлени непрерывности и возможности регулировани молекул рного веса полимера,, процесс ведут в двухшнековой машине..A method of producing polycarbonates from diphenylolpropane and a solution of phosgene in methylene chloride at the interface of two phases in the presence of quaternary ammonium salts, characterized in that, in order to achieve continuity and control of the molecular weight of the polymer, the process is carried out in a twin-screw machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU668664A SU138029A1 (en) | 1960-06-01 | 1960-06-01 | The method of producing polycarbonates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU668664A SU138029A1 (en) | 1960-06-01 | 1960-06-01 | The method of producing polycarbonates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU138029A1 true SU138029A1 (en) | 1960-11-30 |
Family
ID=48294203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU668664A SU138029A1 (en) | 1960-06-01 | 1960-06-01 | The method of producing polycarbonates |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU138029A1 (en) |
-
1960
- 1960-06-01 SU SU668664A patent/SU138029A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO136136B (en) | SURGICAL LIGATURE OR SUTUR MATERIAL. | |
| GB1152726A (en) | Novel Process for the Preparation of Polyester. | |
| SU138029A1 (en) | The method of producing polycarbonates | |
| GB1409586A (en) | Process for the removal of hemicellulose from hemicellulose- containing caustic liquors obtained in the treatment of cellulose- | |
| GB1208524A (en) | Process for the production of polycaproamide | |
| US3553171A (en) | Process for production of directly spinnable poly(ethylene terephthalate) | |
| SE400150B (en) | FOR USE IN A MODULE BUGGED CORROSION SYSTEM INTENDED APPARATUS MODULE FOR TREATMENT OF FOREMAL AS A PART OF AN CORROSION OPERATION OR DYLIC CHEMICAL TREATMENT PROCESS, IN WHICH SEVERAL SERIES ... | |
| US3102908A (en) | Crystallization of adipic acid in the presence of polyorgano siloxane | |
| GB787336A (en) | A method of and apparatus for producing continuously photographic emulsions | |
| US2270204A (en) | Process of producing oximes | |
| GB1160539A (en) | Process for Producing Iodine Pentafluoride | |
| US4158698A (en) | Apparatus for continuous xanthation and production of viscose spinning solution | |
| GB1252330A (en) | ||
| SU146038A1 (en) | The method of obtaining polyvinyl alcohol | |
| ES328362A1 (en) | Procedure for the preparation of vinyl chloride polymers. (Machine-translation by Google Translate, not legally binding) | |
| Gomes et al. | Cycloaddition of keten and imines to sulphur dioxide | |
| US991267A (en) | Apparatus for the continuous manufacture of cellulose films. | |
| GB1121370A (en) | Process and apparatus for treating a continuous length of synthetic textile fabric | |
| GB748303A (en) | Polymeric compositions and spinning process | |
| NO146475B (en) | ELECTRODE WITH PEROVSKITE STRUCTURE, SPECIAL FOR ELECTROLYSE OF ALKALI METAL HALOGENIDES, CHLORATES OR PERCHLORATES | |
| SU375313A1 (en) | METHOD OF GETTING ALUMINUM GALLAMA | |
| ES457728A1 (en) | Process and apparatus for intermixing liquids | |
| ES370053A1 (en) | Process and apparatus for the continuous preparation of a spinnable solution of acrylonitrile polymers | |
| GB1512071A (en) | Process for concentrating latices by ultra-filtration | |
| SU436750A1 (en) | The method of sorting hollow plastic products |