ES227398A1 - UN PROCEDIMIENTO PARA LA PREPARACIoN DE POLIESTIRENOS CRISTALINOS. - Google Patents
UN PROCEDIMIENTO PARA LA PREPARACIoN DE POLIESTIRENOS CRISTALINOS.Info
- Publication number
- ES227398A1 ES227398A1 ES0227398A ES227398A ES227398A1 ES 227398 A1 ES227398 A1 ES 227398A1 ES 0227398 A ES0227398 A ES 0227398A ES 227398 A ES227398 A ES 227398A ES 227398 A1 ES227398 A1 ES 227398A1
- Authority
- ES
- Spain
- Prior art keywords
- catalyst
- metal
- isotactic
- aromatic hydrocarbon
- crystalline
- 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
- C08F32/00—Homopolymers and copolymers of cyclic compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Procedimiento para la preparación de poliestirenos cristalinos, de elevado peso molecular, isotácticos, caracterizados porque la polimerización se realiza en presencia de un catalizador producido por reacción de un compuesto de uno de los metales de los primeros sub-grupos de los grupos 4º a 6º del sistema periódico (incluyendo el torio y el uranio), con un metal, aleación, hidruro de metal o compuesto organo-metálico de los grupos 1º a 3º del sistema periódico, y en presencia de un líquido que tiene buenas propiedades disolventes para los polímeros de estireno de bajo peso molecular, y que no reacciona con el catalizador.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT408055 | 1955-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES227398A1 true ES227398A1 (es) | 1956-05-16 |
Family
ID=11112054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0227398A Expired ES227398A1 (es) | 1955-03-21 | 1956-03-20 | UN PROCEDIMIENTO PARA LA PREPARACIoN DE POLIESTIRENOS CRISTALINOS. |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE546216A (es) |
CH (1) | CH370921A (es) |
DE (1) | DE1047435B (es) |
ES (1) | ES227398A1 (es) |
FR (1) | FR1144409A (es) |
GB (1) | GB826021A (es) |
LU (1) | LU34258A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB877050A (en) * | 1958-06-16 | 1961-09-13 | Ici Ltd | Improvements in and relating to the polymerisation of olefines, catalysts for such polymerisation, crystalline materials suitable as components of the catalysts and processes for their preparation |
BE563559A (es) * | 1956-12-28 | |||
BE598132A (es) * | 1957-05-28 | |||
US3008942A (en) * | 1958-01-16 | 1961-11-14 | American Cyanamid Co | Polymerization system for vinyl aromatic monomers |
US3156741A (en) * | 1959-01-12 | 1964-11-10 | L I R C Lab Italiani Di Ricerc | Copolymers of styrene, dimethyl itaconate and acrylonitrile and a process for their manufacture |
DE1105618B (de) * | 1959-01-26 | 1961-04-27 | Huels Chemische Werke Ag | Verfahren zur Herstellung von isotaktischen Polystyrolen |
BE592773A (es) * | 1959-07-10 | |||
EP0811023B1 (de) * | 1995-02-24 | 1999-05-06 | Basf Aktiengesellschaft | Verfahren zur herstellung von polymerisaten von vinylaromatischen verbindungen unter verwendung von polymere enthaltenden katalysatorsystemen |
-
0
- LU LU34258D patent/LU34258A1/xx unknown
- BE BE546216D patent/BE546216A/xx unknown
-
1956
- 1956-03-12 DE DEM29937A patent/DE1047435B/de active Pending
- 1956-03-15 GB GB809656A patent/GB826021A/en not_active Expired
- 1956-03-17 CH CH3110356A patent/CH370921A/de unknown
- 1956-03-19 FR FR1144409D patent/FR1144409A/fr not_active Expired
- 1956-03-20 ES ES0227398A patent/ES227398A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1144409A (fr) | 1957-10-14 |
GB826021A (en) | 1959-12-23 |
LU34258A1 (es) | |
DE1047435B (de) | 1958-12-24 |
BE546216A (es) | |
CH370921A (de) | 1963-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB848067A (en) | Polymerization process and product | |
GB983426A (en) | Preparation of catalytic compositions | |
ES227398A1 (es) | UN PROCEDIMIENTO PARA LA PREPARACIoN DE POLIESTIRENOS CRISTALINOS. | |
GB1339268A (en) | Polymerisation of vinyl aromatic compounds | |
GB823024A (en) | Improvements in or relating to the catalytic polymerization of alpha-olefins and to the preparation of catalysts therefor | |
GB778098A (en) | Dialkyl aluminium hydrides and their production | |
GB815151A (en) | Cyclodiene dimerizing process | |
US3352934A (en) | Use of hydrogen as a molecular weight control in alkali-metal polymerization of diolefins | |
US3036016A (en) | Catalyst for polymerization of olefins | |
US2923725A (en) | Removal of organometallic halides from organometals | |
GB872142A (en) | A process for polymerizing alpha-olefines | |
GB847102A (en) | Improvements in the preparation of crystalline polystyrene | |
US3706721A (en) | Control of molecular weight in the production of alfin polymers | |
GB795370A (en) | Production of polymers | |
US3069364A (en) | Polyolefin synthesis | |
GB903651A (en) | Improved process for making cyclododecatriene | |
GB840916A (en) | Polymerization of ethylene | |
GB840233A (en) | Improvements in or relating to purification of polyolefins | |
GB1151096A (en) | Production of Polyesters | |
GB820773A (en) | Process for the production of polyolefins | |
GB863416A (en) | Process for polymerizing lower olefines | |
US3073873A (en) | Process for preparing tetrasubstituted butadienes and related olefins | |
ES291110A1 (es) | Procedimiento para preparar copolímeros de peso molecular elevado | |
GB905001A (en) | A process for the production of 1,4-cis-polydienes | |
US3192279A (en) | Production of liquid copolymers of diolefins and other unsaturated monomers |