DE2455535A1 - Verfahren zum herstellen von olefinpolymerisaten - Google Patents
Verfahren zum herstellen von olefinpolymerisatenInfo
- Publication number
- DE2455535A1 DE2455535A1 DE19742455535 DE2455535A DE2455535A1 DE 2455535 A1 DE2455535 A1 DE 2455535A1 DE 19742455535 DE19742455535 DE 19742455535 DE 2455535 A DE2455535 A DE 2455535A DE 2455535 A1 DE2455535 A1 DE 2455535A1
- Authority
- DE
- Germany
- Prior art keywords
- silica
- xerogel
- water
- weight
- calculated
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 72
- 239000000377 silicon dioxide Substances 0.000 claims description 36
- 239000003054 catalyst Substances 0.000 claims description 31
- 229940117975 chromium trioxide Drugs 0.000 claims description 26
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 26
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 21
- 229910002028 silica xerogel Inorganic materials 0.000 claims description 18
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 235000012239 silicon dioxide Nutrition 0.000 claims description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 239000011651 chromium Substances 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 12
- 239000011734 sodium Substances 0.000 claims description 11
- -1 hydrogen ions Chemical class 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 7
- 239000000017 hydrogel Substances 0.000 claims description 7
- 150000001336 alkenes Chemical class 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 150000001845 chromium compounds Chemical class 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 150000007522 mineralic acids Chemical class 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910001415 sodium ion Inorganic materials 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 239000000499 gel Substances 0.000 claims description 5
- 230000003472 neutralizing effect Effects 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 4
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 4
- 239000007790 solid phase Substances 0.000 claims description 4
- 230000004580 weight loss Effects 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000575 pesticide Substances 0.000 claims description 3
- 230000000379 polymerizing effect Effects 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- QVZZPLDJERFENQ-NKTUOASPSA-N bassianolide Chemical compound CC(C)C[C@@H]1N(C)C(=O)[C@@H](C(C)C)OC(=O)[C@H](CC(C)C)N(C)C(=O)[C@@H](C(C)C)OC(=O)[C@H](CC(C)C)N(C)C(=O)[C@@H](C(C)C)OC(=O)[C@H](CC(C)C)N(C)C(=O)[C@@H](C(C)C)OC1=O QVZZPLDJERFENQ-NKTUOASPSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 12
- 238000006116 polymerization reaction Methods 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000001099 ammonium carbonate Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000005673 monoalkenes Chemical class 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 235000019795 sodium metasilicate Nutrition 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229940009827 aluminum acetate Drugs 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
- XEHUIDSUOAGHBW-UHFFFAOYSA-N chromium;pentane-2,4-dione Chemical compound [Cr].CC(=O)CC(C)=O.CC(=O)CC(C)=O.CC(=O)CC(C)=O XEHUIDSUOAGHBW-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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)
- Polymerization Catalysts (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742455535 DE2455535A1 (de) | 1974-11-23 | 1974-11-23 | Verfahren zum herstellen von olefinpolymerisaten |
| US05/631,642 US4042770A (en) | 1974-11-23 | 1975-11-13 | Manufacture of olefin polymers |
| IT29507/75A IT1049915B (it) | 1974-11-23 | 1975-11-20 | Processo per la preparazione di polimeri olefinici |
| ES442868A ES442868A1 (es) | 1974-11-23 | 1975-11-21 | Procedimiento de obtencion de un catalizador de xerogel de acido silicicontrioxido cromico. |
| FR7535674A FR2291985A1 (fr) | 1974-11-23 | 1975-11-21 | Procede de preparation de polymeres d'olefines |
| AT887775A AT339041B (de) | 1974-11-23 | 1975-11-21 | Verfahren zur herstellung von olefinpolymerisaten |
| GB47946/75A GB1519606A (en) | 1974-11-23 | 1975-11-21 | Manufacture of olefin polymers and catalyst for use therein |
| BE162076A BE835819A (fr) | 1974-11-23 | 1975-11-21 | Procede de preparation de polymeres d'olefines |
| JP50139783A JPS5174076A (OSRAM) | 1974-11-23 | 1975-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742455535 DE2455535A1 (de) | 1974-11-23 | 1974-11-23 | Verfahren zum herstellen von olefinpolymerisaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2455535A1 true DE2455535A1 (de) | 1976-05-26 |
Family
ID=5931569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742455535 Withdrawn DE2455535A1 (de) | 1974-11-23 | 1974-11-23 | Verfahren zum herstellen von olefinpolymerisaten |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4042770A (OSRAM) |
| JP (1) | JPS5174076A (OSRAM) |
| AT (1) | AT339041B (OSRAM) |
| BE (1) | BE835819A (OSRAM) |
| DE (1) | DE2455535A1 (OSRAM) |
| ES (1) | ES442868A1 (OSRAM) |
| FR (1) | FR2291985A1 (OSRAM) |
| GB (1) | GB1519606A (OSRAM) |
| IT (1) | IT1049915B (OSRAM) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2604549A1 (de) * | 1976-02-06 | 1977-08-11 | Basf Ag | Verfahren zum herstellen von olefinpolymerisaten |
| US4081407A (en) * | 1976-03-18 | 1978-03-28 | Phillips Petroleum Company | Catalyst support prepared by alcohol treatment of hydrogels |
| US4206297A (en) * | 1977-04-25 | 1980-06-03 | Chemplex Company | Polymerization catalysts and methods |
| US4177162A (en) * | 1977-12-05 | 1979-12-04 | Phillips Petroleum Company | Sulfiding and reoxidation of chromium catalyst |
| US4169926A (en) * | 1978-01-16 | 1979-10-02 | Phillips Petroleum Company | Inorganic hydrogels and uses thereof |
| US4384086A (en) * | 1980-02-06 | 1983-05-17 | Phillips Petroleum Company | Large pore volume olefin polymerization catalysts |
| US4299731A (en) * | 1980-02-06 | 1981-11-10 | Phillips Petroleum Company | Large pore volume olefin polymerization catalysts |
| DE3634534A1 (de) * | 1986-10-10 | 1988-04-14 | Basf Ag | Verfahren zum herstellen von homo- sowie copolymerisaten des ethens mittels eines chromtrioxid-katalysators |
| DE4134146A1 (de) * | 1991-10-16 | 1993-04-22 | Basf Ag | Phillips-katalysator und seine verwendung zur herstellung von ethylenhomopolymerisaten und -copolymerisaten |
| DE4231749A1 (de) * | 1992-09-23 | 1994-03-24 | Basf Ag | Verfahren zur Herstellung eines Trägerkatalysators für die Polymerisation von alpha-Olefinen |
| US5541304A (en) * | 1994-05-02 | 1996-07-30 | Hercules Incorporated | Crosslinked hydrogel compositions with improved mechanical performance |
| DE4422912A1 (de) * | 1994-06-30 | 1996-01-11 | Hoechst Ag | Xerogele, Verfahren zu ihrer Herstellung, sowie ihre Verwendung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3652216A (en) * | 1968-10-11 | 1972-03-28 | Nat Petro Chemicals Co Inc | Preparation of silica gels |
| US3900457A (en) * | 1970-10-08 | 1975-08-19 | Phillips Petroleum Co | Olefin polymerization catalyst |
| US3960826A (en) * | 1973-07-27 | 1976-06-01 | National Petro Chemicals Corporation | Olefin polymerization process |
-
1974
- 1974-11-23 DE DE19742455535 patent/DE2455535A1/de not_active Withdrawn
-
1975
- 1975-11-13 US US05/631,642 patent/US4042770A/en not_active Expired - Lifetime
- 1975-11-20 IT IT29507/75A patent/IT1049915B/it active
- 1975-11-21 GB GB47946/75A patent/GB1519606A/en not_active Expired
- 1975-11-21 FR FR7535674A patent/FR2291985A1/fr active Granted
- 1975-11-21 BE BE162076A patent/BE835819A/xx not_active IP Right Cessation
- 1975-11-21 ES ES442868A patent/ES442868A1/es not_active Expired
- 1975-11-21 AT AT887775A patent/AT339041B/de not_active IP Right Cessation
- 1975-11-22 JP JP50139783A patent/JPS5174076A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AT339041B (de) | 1977-09-26 |
| GB1519606A (en) | 1978-08-02 |
| FR2291985A1 (fr) | 1976-06-18 |
| JPS5174076A (OSRAM) | 1976-06-26 |
| ATA887775A (de) | 1977-01-15 |
| US4042770A (en) | 1977-08-16 |
| IT1049915B (it) | 1981-02-10 |
| FR2291985B1 (OSRAM) | 1980-01-04 |
| BE835819A (fr) | 1976-05-21 |
| ES442868A1 (es) | 1977-04-01 |
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