GB1030306A - Process for the catalytic hydrogenation of polymers of dienes - Google Patents
Process for the catalytic hydrogenation of polymers of dienesInfo
- Publication number
- GB1030306A GB1030306A GB31435/64A GB3143564A GB1030306A GB 1030306 A GB1030306 A GB 1030306A GB 31435/64 A GB31435/64 A GB 31435/64A GB 3143564 A GB3143564 A GB 3143564A GB 1030306 A GB1030306 A GB 1030306A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compound
- organic
- metal
- hydrogenation
- cobalt
- 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
- 150000001993 dienes Chemical class 0.000 title abstract 2
- 229920000642 polymer Polymers 0.000 title abstract 2
- 238000009903 catalytic hydrogenation reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 abstract 6
- 239000002184 metal Substances 0.000 abstract 6
- 150000001875 compounds Chemical class 0.000 abstract 5
- 238000005984 hydrogenation reaction Methods 0.000 abstract 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 150000002894 organic compounds Chemical class 0.000 abstract 4
- 239000010941 cobalt Substances 0.000 abstract 3
- 229910017052 cobalt Inorganic materials 0.000 abstract 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 3
- -1 hydrocarbyl compound Chemical class 0.000 abstract 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract 2
- 125000004429 atom Chemical group 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000007720 emulsion polymerization reaction Methods 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 125000004430 oxygen atom Chemical group O* 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 abstract 1
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 150000002736 metal compounds Chemical class 0.000 abstract 1
- 150000002815 nickel Chemical class 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 abstract 1
- 229940031826 phenolate Drugs 0.000 abstract 1
- 229920001195 polyisoprene Polymers 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/02—Hydrogenation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/12—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides
- B01J31/14—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron
- B01J31/143—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing organo-metallic compounds or metal hydrides of aluminium or boron of aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
- B01J31/2252—Sulfonate ligands
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B35/00—Reactions without formation or introduction of functional groups containing hetero atoms, involving a change in the type of bonding between two carbon atoms already directly linked
- C07B35/02—Reduction
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/03—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of non-aromatic carbon-to-carbon double bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/60—Reduction reactions, e.g. hydrogenation
- B01J2231/64—Reductions in general of organic substrates, e.g. hydride reductions or hydrogenations
- B01J2231/641—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes
- B01J2231/645—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes of C=C or C-C triple bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/842—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/845—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/847—Nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2540/00—Compositional aspects of coordination complexes or ligands in catalyst systems
- B01J2540/40—Non-coordinating groups comprising nitrogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2531/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- C07C2531/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- C07C2531/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL296137 | 1963-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1030306A true GB1030306A (en) | 1966-05-18 |
Family
ID=19754924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31435/64A Expired GB1030306A (en) | 1963-08-02 | 1964-08-04 | Process for the catalytic hydrogenation of polymers of dienes |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE651281A (enrdf_load_stackoverflow) |
| DE (1) | DE1215372B (enrdf_load_stackoverflow) |
| GB (1) | GB1030306A (enrdf_load_stackoverflow) |
| NL (1) | NL296137A (enrdf_load_stackoverflow) |
| SE (1) | SE305324B (enrdf_load_stackoverflow) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788361A (en) * | 1987-10-30 | 1988-11-29 | Shell Oil Company | Polymeric viscosity index improver and oil composition comprising the same |
| US4851474A (en) * | 1987-09-29 | 1989-07-25 | Shell Oil Company | Block copolymer and method of preparing same |
| US4859737A (en) * | 1987-11-24 | 1989-08-22 | Shell Oil Company | Polymeric composition |
| US4898784A (en) * | 1987-12-30 | 1990-02-06 | Shell Oil Company | Tie layer composition and laminated structures containing same |
| US4980331A (en) * | 1988-11-09 | 1990-12-25 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| EP0368419A3 (en) * | 1988-11-09 | 1991-02-06 | Shell Internationale Researchmaatschappij B.V. | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| US5030779A (en) * | 1989-06-08 | 1991-07-09 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| US5057582A (en) * | 1988-12-23 | 1991-10-15 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| EP2363454A1 (en) | 2010-02-23 | 2011-09-07 | Infineum International Limited | A lubricating oil composition |
| EP2607461A1 (en) | 2011-12-21 | 2013-06-26 | Infineum International Limited | Marine engine lubrication |
| EP2607466A2 (en) | 2011-12-21 | 2013-06-26 | Infineum International Limited | Viscosity index improvers for lubricating oil compositions |
| EP2781587A1 (en) | 2013-03-21 | 2014-09-24 | Infineum International Limited | Marine engine lubrication |
| EP2891704A1 (en) | 2014-01-02 | 2015-07-08 | Infineum International Limited | Viscosity index improver concentrates for lubricating oil compositions |
| US9951160B2 (en) | 2014-05-16 | 2018-04-24 | Kraton Polymers U.S. Llc | Polyalkenyl coupling agent and conjugated diene polymers prepared therefrom |
| EP3378877A1 (en) | 2017-02-28 | 2018-09-26 | Evonik Oil Additives GmbH | Hydrogenated polybutadienes useful as lubricant additives |
| WO2020099078A1 (en) | 2018-11-13 | 2020-05-22 | Evonik Operations Gmbh | Random copolymers for use as base oils or lubricant additives |
| WO2020099079A1 (en) | 2018-11-13 | 2020-05-22 | Evonik Operations Gmbh | Process for preparing random copolymers |
| EP3831913A1 (en) | 2019-12-05 | 2021-06-09 | Infineum International Limited | Triblock copolymer concentrates for lubricating oil compositions |
| EP3907269A1 (en) | 2020-05-05 | 2021-11-10 | Evonik Operations GmbH | Hydrogenated linear polydiene copolymers as base stock or lubricant additives for lubricant compositions |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1268210A (en) * | 1968-04-23 | 1972-03-22 | Bridgestone Tire Co Ltd | Process for hydrogenating polymers |
-
0
- NL NL296137D patent/NL296137A/xx unknown
-
1964
- 1964-07-31 SE SE9338/64A patent/SE305324B/xx unknown
- 1964-07-31 DE DES92410A patent/DE1215372B/de active Pending
- 1964-07-31 BE BE651281D patent/BE651281A/xx unknown
- 1964-08-04 GB GB31435/64A patent/GB1030306A/en not_active Expired
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4851474A (en) * | 1987-09-29 | 1989-07-25 | Shell Oil Company | Block copolymer and method of preparing same |
| US4788361A (en) * | 1987-10-30 | 1988-11-29 | Shell Oil Company | Polymeric viscosity index improver and oil composition comprising the same |
| US4859737A (en) * | 1987-11-24 | 1989-08-22 | Shell Oil Company | Polymeric composition |
| US4898784A (en) * | 1987-12-30 | 1990-02-06 | Shell Oil Company | Tie layer composition and laminated structures containing same |
| US4980331A (en) * | 1988-11-09 | 1990-12-25 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| EP0368419A3 (en) * | 1988-11-09 | 1991-02-06 | Shell Internationale Researchmaatschappij B.V. | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| US5057582A (en) * | 1988-12-23 | 1991-10-15 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| US5030779A (en) * | 1989-06-08 | 1991-07-09 | Shell Oil Company | Hydrogenation catalyst and hydrogenation process wherein said catalyst is used |
| EP2363454A1 (en) | 2010-02-23 | 2011-09-07 | Infineum International Limited | A lubricating oil composition |
| EP2607466A2 (en) | 2011-12-21 | 2013-06-26 | Infineum International Limited | Viscosity index improvers for lubricating oil compositions |
| EP2607461A1 (en) | 2011-12-21 | 2013-06-26 | Infineum International Limited | Marine engine lubrication |
| EP2781587A1 (en) | 2013-03-21 | 2014-09-24 | Infineum International Limited | Marine engine lubrication |
| EP2891704A1 (en) | 2014-01-02 | 2015-07-08 | Infineum International Limited | Viscosity index improver concentrates for lubricating oil compositions |
| US9951160B2 (en) | 2014-05-16 | 2018-04-24 | Kraton Polymers U.S. Llc | Polyalkenyl coupling agent and conjugated diene polymers prepared therefrom |
| US10787623B2 (en) | 2017-02-28 | 2020-09-29 | Evonik Operations Gmbh | Hydrogenated polybutadienes useful as lubricant additives |
| EP3378877A1 (en) | 2017-02-28 | 2018-09-26 | Evonik Oil Additives GmbH | Hydrogenated polybutadienes useful as lubricant additives |
| RU2676472C1 (ru) * | 2017-02-28 | 2018-12-29 | Эвоник Оил Эддитивс Гмбх | Гидрогенизированные полибутадиены, пригодные в качестве присадок к смазочным материалам |
| WO2020099078A1 (en) | 2018-11-13 | 2020-05-22 | Evonik Operations Gmbh | Random copolymers for use as base oils or lubricant additives |
| WO2020099079A1 (en) | 2018-11-13 | 2020-05-22 | Evonik Operations Gmbh | Process for preparing random copolymers |
| US11453837B2 (en) | 2018-11-13 | 2022-09-27 | Evonik Operations Gmbh | Random copolymers for use as base oils or lubricant additives |
| EP3831913A1 (en) | 2019-12-05 | 2021-06-09 | Infineum International Limited | Triblock copolymer concentrates for lubricating oil compositions |
| EP3907269A1 (en) | 2020-05-05 | 2021-11-10 | Evonik Operations GmbH | Hydrogenated linear polydiene copolymers as base stock or lubricant additives for lubricant compositions |
| US11603425B2 (en) | 2020-05-05 | 2023-03-14 | Evonik Operations Gmbh | Hydrogenated linear polydiene copolymers as base stock or lubricant additives for lubricant compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| BE651281A (enrdf_load_stackoverflow) | 1965-02-01 |
| SE305324B (enrdf_load_stackoverflow) | 1968-10-21 |
| DE1215372B (de) | 1966-04-28 |
| NL296137A (enrdf_load_stackoverflow) | 1900-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1030306A (en) | Process for the catalytic hydrogenation of polymers of dienes | |
| GB851893A (en) | Improved hydrocarbon polymers and process for production thereof | |
| Kochi et al. | Reactions of Organic Peroxides with Chromium (II). Reduction of Free Radicals by Metal Ions1 | |
| GB1138366A (en) | Improvements in and relating to the production of unsaturated compounds | |
| GB1446147A (en) | Process for the producion of alkyl acrylates and alkyl methacrylates | |
| GB1333173A (en) | Process for preparing phenylesters of aliphatic carboxylic acids | |
| DE1808833A1 (de) | Verfahren zur Herstellung von Additionsprodukten aus Olefinen | |
| Yoshida et al. | Stereoselective synthesis of partially substituted 1, 2, 3-butatriene derivatives via hydroboration | |
| Polykarpov et al. | Tetramethylammonium phenyltrialkylborates in the photoinduced electron transfer reaction with benzophenone. Generation of alkyl radicals and their addition to activated alkenes | |
| DE1570398C3 (enrdf_load_stackoverflow) | ||
| GB1156573A (en) | Method of making diacyl peroxides | |
| GB1396113A (en) | Coated medicines and process for preparation of coated medicines | |
| GB1489036A (en) | Process for the continuous preparation of percarboxylic acids in organic solution | |
| GB1324785A (en) | Process for hydrogenating sulpholenes to sulpholanes | |
| GB879269A (en) | Process for the reaction of halogen-containing organic aluminium compounds with olefines | |
| GB1210780A (en) | A method of preparing a bis(2 hydroxyethyl) ester of an alkali metal salt of 3,5-dicarboxy-benzene sulphuric acid | |
| SU129145A1 (ru) | Способ получени полимера бутадиена с повышенным содержанием структуры ЦИС-1,4 | |
| GB997151A (en) | Polymerization process | |
| Bunton et al. | Acidic and Spontaneous Solvolyses of Esters of Bicyclic Alcohols | |
| Pasto et al. | Lithium Aluminum Methide as an Alkylating Agent1 | |
| Wang et al. | Some Light Induced Reactions with Disulfide and Mercaptan | |
| GB1136497A (en) | Process for the preparation of 2-substituted cyclopentane- and cyclohexane-1,3-diones | |
| DE1251954B (de) | Verfahren zur Herstellung von Homo- oder Copolymerisaten aethylenisch ungesaettigter Kohlenwasserstoffe | |
| GB757525A (en) | Improvements in and relating to the production of metal alkyls | |
| GB1299688A (en) | Process for preparing tert-butylstyrene |