NO134802B - - Google Patents
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- Publication number
- NO134802B NO134802B NO208/70A NO20870A NO134802B NO 134802 B NO134802 B NO 134802B NO 208/70 A NO208/70 A NO 208/70A NO 20870 A NO20870 A NO 20870A NO 134802 B NO134802 B NO 134802B
- Authority
- NO
- Norway
- Prior art keywords
- solid
- carrier
- catalyst
- polymerization
- polymer
- Prior art date
Links
- 239000010936 titanium Substances 0.000 claims description 43
- 239000003054 catalyst Substances 0.000 claims description 41
- 239000007787 solid Substances 0.000 claims description 40
- 238000006116 polymerization reaction Methods 0.000 claims description 35
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 21
- 239000005977 Ethylene Substances 0.000 claims description 21
- 239000011777 magnesium Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 13
- 229910052719 titanium Inorganic materials 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
- 229940043430 calcium compound Drugs 0.000 claims description 10
- 150000001674 calcium compounds Chemical class 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 5
- 150000002901 organomagnesium compounds Chemical class 0.000 claims description 5
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 75
- 229920000642 polymer Polymers 0.000 description 44
- -1 polyethylenes Polymers 0.000 description 31
- 239000004698 Polyethylene Substances 0.000 description 28
- 229920000573 polyethylene Polymers 0.000 description 26
- 230000000694 effects Effects 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 238000005470 impregnation Methods 0.000 description 19
- 239000012265 solid product Substances 0.000 description 18
- 238000009826 distribution Methods 0.000 description 17
- 239000000725 suspension Substances 0.000 description 16
- 239000000155 melt Substances 0.000 description 13
- 239000003795 chemical substances by application Substances 0.000 description 12
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- 239000000395 magnesium oxide Substances 0.000 description 10
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 150000002902 organometallic compounds Chemical class 0.000 description 10
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 10
- 230000000704 physical effect Effects 0.000 description 9
- 229920001577 copolymer Polymers 0.000 description 8
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 6
- 239000011575 calcium Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- PBKONEOXTCPAFI-UHFFFAOYSA-N 1,2,4-trichlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1 PBKONEOXTCPAFI-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 3
- 238000013022 venting Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 229910010062 TiCl3 Inorganic materials 0.000 description 2
- RTQCAYKHUMWCEM-UHFFFAOYSA-N [Mg].ClO Chemical compound [Mg].ClO RTQCAYKHUMWCEM-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- HRXSKIOIHQEGAI-UHFFFAOYSA-M diethylalumanylium;fluoride Chemical compound CC[Al](F)CC HRXSKIOIHQEGAI-UHFFFAOYSA-M 0.000 description 2
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003701 inert diluent Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- XDKQUSKHRIUJEO-UHFFFAOYSA-N magnesium;ethanolate Chemical compound [Mg+2].CC[O-].CC[O-] XDKQUSKHRIUJEO-UHFFFAOYSA-N 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- YONPGGFAJWQGJC-UHFFFAOYSA-K titanium(iii) chloride Chemical compound Cl[Ti](Cl)Cl YONPGGFAJWQGJC-UHFFFAOYSA-K 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- VSYZXASVWVQEMR-UHFFFAOYSA-N 2-methylbuta-1,3-dienylalumane Chemical compound CC(=C[AlH2])C=C VSYZXASVWVQEMR-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004791 alkyl magnesium halides Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001649 bromium compounds Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- YCCXQARVHOPWFJ-UHFFFAOYSA-M magnesium;ethane;chloride Chemical compound [Mg+2].[Cl-].[CH2-]C YCCXQARVHOPWFJ-UHFFFAOYSA-M 0.000 description 1
- CRGZYKWWYNQGEC-UHFFFAOYSA-N magnesium;methanolate Chemical compound [Mg+2].[O-]C.[O-]C CRGZYKWWYNQGEC-UHFFFAOYSA-N 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 1
- 150000003681 vanadium Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6901486A FR2029332A5 (fr) | 1969-01-24 | 1969-01-24 | Catalyseurs et procede perfectionnes pour la polymerisation et la copolymerisation des olefines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO134802B true NO134802B (xx) | 1976-09-06 |
| NO134802C NO134802C (xx) | 1976-12-15 |
Family
ID=9028209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO208/70A NO134802C (xx) | 1969-01-24 | 1970-01-20 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3718636A (xx) |
| AT (1) | AT305617B (xx) |
| BR (1) | BR7016206D0 (xx) |
| CA (1) | CA943525A (xx) |
| CH (1) | CH508416A (xx) |
| DE (1) | DE2000834C3 (xx) |
| DK (1) | DK125599B (xx) |
| ES (1) | ES374898A1 (xx) |
| FI (1) | FI51706C (xx) |
| FR (1) | FR2029332A5 (xx) |
| GB (1) | GB1256851A (xx) |
| NL (2) | NL7000575A (xx) |
| NO (1) | NO134802C (xx) |
| RO (1) | RO76709A (xx) |
| SE (1) | SE380029B (xx) |
| SU (1) | SU438187A3 (xx) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL165180B (nl) * | 1971-03-11 | 1980-10-15 | Stamicarbon | Werkwijze voor het polymeriseren van etheen. |
| SE402295B (sv) * | 1971-04-06 | 1978-06-26 | Montedison Spa | Katalysator for polymerisation av eten eller blandningar av eten med alfa-olefiner |
| US4187196A (en) * | 1971-06-25 | 1980-02-05 | Montedison S.P.A. | Process for the stereoregular polymerization of alpha-olefins |
| BE791676A (fr) * | 1971-12-08 | 1973-05-21 | Solvay | Procédé pour la polymérisation des oléfines |
| BE793222A (fr) * | 1971-12-22 | 1973-06-22 | Basf Ag | Procede de production de polymerisats d'olefines |
| LU65587A1 (xx) * | 1972-06-22 | 1973-12-27 | ||
| GB1433537A (en) * | 1972-09-14 | 1976-04-28 | Mitsui Petrochemical Ind | Catalyst compositions and their use in polymerising olefins |
| US4071674A (en) * | 1972-09-14 | 1978-01-31 | Mitsui Petrochemical Industries Ltd. | Process for polymerization or copolymerization of olefin and catalyst compositions used therefor |
| US4027087A (en) * | 1972-10-30 | 1977-05-31 | Chisso Corporation | Method for producing ethylene polymers |
| JPS5439876B2 (xx) * | 1973-08-24 | 1979-11-30 | ||
| JPS5213827B2 (xx) * | 1974-05-08 | 1977-04-16 | ||
| JPS565404B2 (xx) * | 1975-02-14 | 1981-02-04 | ||
| DE2621591C2 (de) * | 1975-05-14 | 1986-03-13 | Nissan Chemical Industries, Ltd., Tokio/Tokyo | Verfahren zur Polymerisation von Äthylen |
| IT1038179B (it) * | 1975-05-16 | 1979-11-20 | Montedison Spa | Procedimento di polimerizzazione di alfa olefine con almeno treatoni di carbonto |
| NL7613855A (nl) * | 1975-12-18 | 1977-06-21 | Sumitomo Chemical Co | Werkwijze voor het polymeriseren van olefinen. |
| US4242479A (en) * | 1976-12-23 | 1980-12-30 | Showa Yuka Kabushiki Kaisha | Process for producing an improved ethylenic polymer |
| LU77489A1 (xx) * | 1977-06-06 | 1979-01-19 | ||
| US4233182A (en) * | 1978-12-26 | 1980-11-11 | Standard Oil Company (Indiana) | High activity catalyst for the polymerization of alpha-olefins |
| US4240929A (en) * | 1979-01-15 | 1980-12-23 | Phillips Petroleum Company | Polymerization of olefins |
| US4238354A (en) * | 1979-01-15 | 1980-12-09 | Phillips Petroleum Company | Polymerization of olefins |
| US4235746A (en) * | 1979-01-17 | 1980-11-25 | Phillips Petroleum Company | Polymerization of olefins |
| US4277370A (en) * | 1979-02-15 | 1981-07-07 | Standard Oil Company (Indiana) | Alpha-olefin polymerization catalyst |
| US4324690A (en) * | 1979-02-15 | 1982-04-13 | Standard Oil Company (Indiana) | Alpha-olefin polymerization catalyst |
| US4843133A (en) * | 1979-12-07 | 1989-06-27 | Phillips Petroleum Company | Polymerization and catalysts |
| JPS56129206A (en) * | 1980-03-14 | 1981-10-09 | Chisso Corp | Production of alpha-olefin polymer |
| US4391736A (en) * | 1981-06-05 | 1983-07-05 | Phillips Petroleum Company | Alpha-olefin polymerization |
| US4396533A (en) | 1982-01-27 | 1983-08-02 | Bp Chemicals Limited | Polymerization catalyst |
| US4397762A (en) | 1982-01-27 | 1983-08-09 | Bp Chemicals Limited | Polymerization catalyst |
| US4406818A (en) * | 1982-01-28 | 1983-09-27 | Phillips Petroleum Company | Olefin polymerization |
| US4665138A (en) * | 1982-11-24 | 1987-05-12 | Cities Service Oil & Gas Corp | Process for polymerizing a monomer charge |
| US4435518A (en) * | 1982-11-24 | 1984-03-06 | Cities Service Co. | Polymerization catalyst |
| US4665141A (en) * | 1982-11-24 | 1987-05-12 | Cities Service Oil & Gas Corp. | Process for polymerizing a monomer |
| US4665139A (en) * | 1982-11-24 | 1987-05-12 | Cities Service Oil & Gas Corp. | Process for polymerizing a monomer charge |
| US4707530A (en) * | 1983-01-31 | 1987-11-17 | Exxon Research & Engineering Co. | Polymerization catalyst |
| US5114897A (en) * | 1990-04-18 | 1992-05-19 | The Dow Chemical Company | Catalyst and process for polymerizing olefins |
| US5045612A (en) * | 1990-04-18 | 1991-09-03 | The Dow Chemical Company | Catalyst and process for polymerizing olefins |
| US5661097A (en) * | 1994-08-12 | 1997-08-26 | The Dow Chemical Company | Supported olefin polymerization catalyst |
| EP1559730A1 (en) * | 2004-01-30 | 2005-08-03 | Total Petrochemicals Research Feluy | Activating supports for metallocene catalysis |
| EP1709091A2 (en) * | 2004-01-30 | 2006-10-11 | Total Petrochemicals Research Feluy | Activating supports for metallocene catalysis |
-
0
- NL NL136668D patent/NL136668C/xx active
-
1969
- 1969-01-24 FR FR6901486A patent/FR2029332A5/fr not_active Expired
- 1969-12-15 CH CH1861169A patent/CH508416A/fr not_active IP Right Cessation
- 1969-12-24 ES ES374898A patent/ES374898A1/es not_active Expired
-
1970
- 1970-01-06 GB GB1256851D patent/GB1256851A/en not_active Expired
- 1970-01-09 DE DE2000834A patent/DE2000834C3/de not_active Expired
- 1970-01-13 FI FI700083A patent/FI51706C/fi active
- 1970-01-15 NL NL7000575A patent/NL7000575A/xx unknown
- 1970-01-20 CA CA072,661A patent/CA943525A/en not_active Expired
- 1970-01-20 NO NO208/70A patent/NO134802C/no unknown
- 1970-01-21 SU SU1399739A patent/SU438187A3/ru active
- 1970-01-22 US US00005128A patent/US3718636A/en not_active Expired - Lifetime
- 1970-01-22 BR BR216206/70A patent/BR7016206D0/pt unknown
- 1970-01-23 SE SE7000848A patent/SE380029B/xx unknown
- 1970-01-23 DK DK30770AA patent/DK125599B/da not_active IP Right Cessation
- 1970-01-23 AT AT65170A patent/AT305617B/de not_active IP Right Cessation
-
1977
- 1977-10-19 RO RO197791885D patent/RO76709A/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES374898A1 (es) | 1972-02-16 |
| SU438187A3 (ru) | 1974-07-30 |
| CH508416A (fr) | 1971-06-15 |
| DE2000834A1 (de) | 1970-09-10 |
| FI51706B (xx) | 1976-11-30 |
| AT305617B (de) | 1973-03-12 |
| RO76709A (fr) | 1982-03-24 |
| DK125599B (da) | 1973-03-12 |
| US3718636A (en) | 1973-02-27 |
| BR7016206D0 (pt) | 1973-04-05 |
| FI51706C (fi) | 1977-03-10 |
| FR2029332A5 (fr) | 1970-10-16 |
| NL136668C (xx) | |
| GB1256851A (xx) | 1971-12-15 |
| DE2000834C3 (de) | 1979-11-29 |
| NL7000575A (xx) | 1970-07-28 |
| CA943525A (en) | 1974-03-12 |
| NO134802C (xx) | 1976-12-15 |
| DE2000834B2 (de) | 1979-04-05 |
| SE380029B (xx) | 1975-10-27 |
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