IE53869B1 - Process and catalyst for polymerizing alpha-olefins - Google Patents
Process and catalyst for polymerizing alpha-olefinsInfo
- Publication number
- IE53869B1 IE53869B1 IE1816/82A IE181682A IE53869B1 IE 53869 B1 IE53869 B1 IE 53869B1 IE 1816/82 A IE1816/82 A IE 1816/82A IE 181682 A IE181682 A IE 181682A IE 53869 B1 IE53869 B1 IE 53869B1
- Authority
- IE
- Ireland
- Prior art keywords
- process according
- metal
- catalytic system
- component
- compound
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 33
- 239000003054 catalyst Substances 0.000 title abstract description 19
- 230000000379 polymerizing effect Effects 0.000 title abstract 2
- 239000004711 α-olefin Substances 0.000 title abstract 2
- 239000010936 titanium Substances 0.000 claims abstract description 22
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000005977 Ethylene Substances 0.000 claims abstract description 21
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 19
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011777 magnesium Substances 0.000 claims abstract description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 12
- 230000003197 catalytic effect Effects 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 14
- 150000003609 titanium compounds Chemical class 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- -1 titanium halides Chemical class 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000007334 copolymerization reaction Methods 0.000 claims description 4
- 150000001993 dienes Chemical class 0.000 claims description 4
- 150000001399 aluminium compounds Chemical class 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- 150000001350 alkyl halides Chemical class 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Chemical group 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 claims description 2
- 238000000859 sublimation Methods 0.000 claims description 2
- 230000008022 sublimation Effects 0.000 claims description 2
- 239000012442 inert solvent Substances 0.000 claims 3
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims 2
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 239000003085 diluting agent Substances 0.000 claims 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 abstract description 27
- 229920001577 copolymer Polymers 0.000 abstract description 27
- 238000009826 distribution Methods 0.000 abstract description 9
- 229920000642 polymer Polymers 0.000 abstract description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 6
- 239000005864 Sulphur Substances 0.000 abstract description 6
- 238000009835 boiling Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 239000008096 xylene Substances 0.000 abstract description 3
- 150000003738 xylenes Chemical class 0.000 abstract description 2
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 abstract 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N anhydrous n-heptane Natural products CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 18
- 239000000047 product Substances 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
- MLRVZFYXUZQSRU-UHFFFAOYSA-N 1-chlorohexane Chemical compound CCCCCCCl MLRVZFYXUZQSRU-UHFFFAOYSA-N 0.000 description 3
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 3
- 101000798109 Homo sapiens Melanotransferrin Proteins 0.000 description 3
- 102100032239 Melanotransferrin Human genes 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- 238000004435 EPR spectroscopy Methods 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 description 1
- 101100058670 Aeromonas hydrophila subsp. hydrophila (strain ATCC 7966 / DSM 30187 / BCRC 13018 / CCUG 14551 / JCM 1027 / KCTC 2358 / NCIMB 9240 / NCTC 8049) bsr gene Proteins 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000002083 X-ray spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 150000001348 alkyl chlorides Chemical class 0.000 description 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000005673 monoalkenes Chemical class 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000000075 primary alcohol group Chemical group 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000012066 reaction slurry Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- UHUUYVZLXJHWDV-UHFFFAOYSA-N trimethyl(methylsilyloxy)silane Chemical compound C[SiH2]O[Si](C)(C)C UHUUYVZLXJHWDV-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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT23212/81A IT1137631B (it) | 1981-07-29 | 1981-07-29 | Procedimento per la polimerizzazione e copolimerizzazione in alta resa di composti olefinicamente insaturi e mezzi adatti allo socpo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE821816L IE821816L (en) | 1983-01-29 |
| IE53869B1 true IE53869B1 (en) | 1989-03-29 |
Family
ID=11204932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1816/82A IE53869B1 (en) | 1981-07-29 | 1982-07-28 | Process and catalyst for polymerizing alpha-olefins |
Country Status (29)
| Country | Link |
|---|---|
| US (1) | US4446289A (en, 2012) |
| JP (1) | JPS5827707A (en, 2012) |
| AT (1) | AT386215B (en, 2012) |
| AU (1) | AU553262B2 (en, 2012) |
| BE (1) | BE893965A (en, 2012) |
| BG (1) | BG42524A3 (en, 2012) |
| CA (1) | CA1190349A (en, 2012) |
| CH (1) | CH654317A5 (en, 2012) |
| CS (1) | CS241115B2 (en, 2012) |
| DD (1) | DD202582A5 (en, 2012) |
| DE (1) | DE3228372A1 (en, 2012) |
| DK (1) | DK162650C (en, 2012) |
| ES (1) | ES8406895A1 (en, 2012) |
| FR (1) | FR2510587B1 (en, 2012) |
| GB (1) | GB2103226B (en, 2012) |
| GR (1) | GR76205B (en, 2012) |
| HU (1) | HU196437B (en, 2012) |
| IE (1) | IE53869B1 (en, 2012) |
| IT (1) | IT1137631B (en, 2012) |
| LU (1) | LU84288A1 (en, 2012) |
| NL (1) | NL188164C (en, 2012) |
| NO (1) | NO161376C (en, 2012) |
| PL (1) | PL134909B1 (en, 2012) |
| RO (1) | RO85330B (en, 2012) |
| SE (1) | SE453296B (en, 2012) |
| SU (1) | SU1688788A3 (en, 2012) |
| TR (1) | TR21778A (en, 2012) |
| YU (1) | YU44357B (en, 2012) |
| ZA (1) | ZA824952B (en, 2012) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1176299B (it) * | 1984-06-22 | 1987-08-18 | Anic Spa | Metodo per la preparazione di un catalizzatore a base di zirconio o afnio e processo di polimerizzazione o copolimerizzazione di composti insaturi impiegante lo stesso |
| EP0176641B1 (en) * | 1984-10-05 | 1989-02-15 | Pony Industries Incorporated | Hydrocarbon fluid friction reducing composition containing olefin copolymer and process for producing same |
| DE3581741D1 (de) * | 1985-11-21 | 1991-03-14 | Pony Ind Inc | Verfahren zum polymerisieren von alpha-olefinen mit einem ziegler-katalysator. |
| FI87891C (fi) * | 1991-07-16 | 1993-03-10 | Neste Oy | Metateskatalysator foer olefiner |
| FR2691970B1 (fr) * | 1992-06-04 | 1995-08-25 | Bp Chemicals Snc | Procede de preparation d'un catalyseur de polymerisation. |
| RU2064836C1 (ru) * | 1994-06-20 | 1996-08-10 | Институт катализа им. Г.К.Борескова СО РАН | Способ получения нанесенного катализатора для полимеризации этилена и сополимеризации этилена с альфа-олефинами |
| JP5394630B2 (ja) * | 2007-10-22 | 2014-01-22 | 東邦チタニウム株式会社 | アルコキシマグネシウムの合成方法、オレフィン類重合用固体触媒成分の製造方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7018333A (en, 2012) * | 1969-12-22 | 1971-06-24 | ||
| US3859231A (en) * | 1972-10-13 | 1975-01-07 | Gulf Research Development Co | Simplified process for manufacture of catalyst component |
| IT1054583B (it) * | 1976-01-30 | 1981-11-30 | Snam Progetti | Metodo per la preparazione di tricoluri di titanio e di vanadio e prodotti cosi ottenuti |
| US4194992A (en) * | 1976-01-30 | 1980-03-25 | Snamprogetti, S.P.A. | Method for the polymerization of olefines and means suitable thereto |
| GR60862B (en) * | 1976-01-30 | 1978-09-01 | Snam Progetti | Process for olephines polymerization and compositions suitable for the polymerization |
| GB1578745A (en) * | 1976-05-24 | 1980-11-12 | Bp Chem Int Ltd | Polymerisation catalyst component |
| US4246384A (en) * | 1978-11-08 | 1981-01-20 | Phillips Petroleum Company | Magnesium reducing agent for producing titanium trihalide catalyst component |
| IT1115152B (it) * | 1979-03-07 | 1986-02-03 | Anic Spa | Processo per la copolimerizzazione dell'etilene con idrocarburi pluriinsaturi |
| US4342855A (en) * | 1980-08-27 | 1982-08-03 | Idemitsu Kosan Company Limited | Process for the production of polyethylene |
-
1981
- 1981-07-29 IT IT23212/81A patent/IT1137631B/it active
-
1982
- 1982-07-12 ZA ZA824952A patent/ZA824952B/xx unknown
- 1982-07-13 GR GR68746A patent/GR76205B/el unknown
- 1982-07-15 US US06/398,649 patent/US4446289A/en not_active Expired - Fee Related
- 1982-07-16 CH CH4373/82A patent/CH654317A5/it not_active IP Right Cessation
- 1982-07-19 DK DK323082A patent/DK162650C/da not_active IP Right Cessation
- 1982-07-20 CA CA000407655A patent/CA1190349A/en not_active Expired
- 1982-07-23 FR FR8212867A patent/FR2510587B1/fr not_active Expired
- 1982-07-23 AU AU86375/82A patent/AU553262B2/en not_active Ceased
- 1982-07-23 LU LU84288A patent/LU84288A1/fr unknown
- 1982-07-23 ES ES515557A patent/ES8406895A1/es not_active Expired
- 1982-07-26 BG BG057541A patent/BG42524A3/xx unknown
- 1982-07-26 CS CS825653A patent/CS241115B2/cs unknown
- 1982-07-27 NL NLAANVRAGE8203012,A patent/NL188164C/xx not_active IP Right Cessation
- 1982-07-27 NO NO822580A patent/NO161376C/no unknown
- 1982-07-27 SE SE8204474A patent/SE453296B/sv not_active IP Right Cessation
- 1982-07-27 TR TR21778A patent/TR21778A/xx unknown
- 1982-07-27 RO RO108293A patent/RO85330B/ro unknown
- 1982-07-28 IE IE1816/82A patent/IE53869B1/en not_active IP Right Cessation
- 1982-07-28 DD DD82242026A patent/DD202582A5/de unknown
- 1982-07-28 BE BE0/208698A patent/BE893965A/fr not_active IP Right Cessation
- 1982-07-28 GB GB08221804A patent/GB2103226B/en not_active Expired
- 1982-07-28 SU SU823469541A patent/SU1688788A3/ru active
- 1982-07-28 AT AT0291782A patent/AT386215B/de not_active IP Right Cessation
- 1982-07-28 YU YU1647/82A patent/YU44357B/xx unknown
- 1982-07-28 HU HU822423A patent/HU196437B/hu not_active IP Right Cessation
- 1982-07-29 JP JP57132945A patent/JPS5827707A/ja active Granted
- 1982-07-29 DE DE19823228372 patent/DE3228372A1/de not_active Withdrawn
- 1982-07-29 PL PL1982237693A patent/PL134909B1/pl unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |