PL73471B1 - - Google Patents
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- Publication number
- PL73471B1 PL73471B1 PL1969131221A PL13122169A PL73471B1 PL 73471 B1 PL73471 B1 PL 73471B1 PL 1969131221 A PL1969131221 A PL 1969131221A PL 13122169 A PL13122169 A PL 13122169A PL 73471 B1 PL73471 B1 PL 73471B1
- Authority
- PL
- Poland
- Prior art keywords
- catalyst
- transition metal
- carried out
- catalysts
- polymerization
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 21
- 238000006116 polymerization reaction Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229910052723 transition metal Inorganic materials 0.000 claims description 12
- 150000003624 transition metals Chemical class 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 150000003623 transition metal compounds Chemical class 0.000 claims description 9
- 239000011777 magnesium Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 7
- 238000007334 copolymerization reaction Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 238000013021 overheating Methods 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- PLLZRTNVEXYBNA-UHFFFAOYSA-L cadmium hydroxide Chemical compound [OH-].[OH-].[Cd+2] PLLZRTNVEXYBNA-UHFFFAOYSA-L 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 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 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- -1 basic metal chloride Chemical class 0.000 description 16
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 16
- 239000000460 chlorine Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 239000010936 titanium Substances 0.000 description 12
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 10
- 229910052801 chlorine Inorganic materials 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 239000012190 activator Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 150000001805 chlorine compounds Chemical class 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 150000004679 hydroxides Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001510 metal chloride Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 229910003074 TiCl4 Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 150000002902 organometallic compounds Chemical class 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910019929 CrO2Cl2 Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 229910052728 basic metal Inorganic materials 0.000 description 2
- 238000009739 binding Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000039 hydrogen halide Inorganic materials 0.000 description 2
- 239000012433 hydrogen halide Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910010068 TiCl2 Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- ZWYDDDAMNQQZHD-UHFFFAOYSA-L titanium(ii) chloride Chemical compound [Cl-].[Cl-].[Ti+2] ZWYDDDAMNQQZHD-UHFFFAOYSA-L 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 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 |
|---|---|---|---|
| FR136374 | 1968-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL73471B1 true PL73471B1 (en, 2012) | 1974-10-30 |
Family
ID=8644693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1969131221A PL73471B1 (en, 2012) | 1968-01-17 | 1969-01-16 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3883492A (en, 2012) |
| JP (1) | JPS4810637B1 (en, 2012) |
| AT (1) | AT309807B (en, 2012) |
| BE (1) | BE726838A (en, 2012) |
| CA (1) | CA1011047A (en, 2012) |
| CH (1) | CH490119A (en, 2012) |
| DE (1) | DE1816048B2 (en, 2012) |
| DK (1) | DK123486B (en, 2012) |
| ES (1) | ES362338A1 (en, 2012) |
| FI (1) | FI49726C (en, 2012) |
| FR (1) | FR1560467A (en, 2012) |
| GB (2) | GB1258880A (en, 2012) |
| NL (2) | NL6900566A (en, 2012) |
| NO (1) | NO129045B (en, 2012) |
| PL (1) | PL73471B1 (en, 2012) |
| SE (2) | SE362083B (en, 2012) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056668A (en) | 1966-10-21 | 1977-11-01 | Solvay & Cie | Process for the polymerization and copolymerization of olefins with a solid support catalyst |
| NL137364C (en, 2012) * | 1968-03-22 | |||
| US3676415A (en) * | 1968-06-27 | 1972-07-11 | Hoechst Ag | Process for polymerizing {60 -olefins |
| BG17623A3 (bg) * | 1968-06-27 | 1973-11-10 | Hoechst Aktiengesellschaft | Метод за полимеризация на алфаолефини |
| DE1928772C3 (de) * | 1969-06-06 | 1983-12-01 | Hoechst Ag, 6230 Frankfurt | Verfahren zur Polymerisation von alpha-Olefinen |
| US4103078A (en) * | 1969-08-01 | 1978-07-25 | Chisso Corporation | Method for producing polymers of alpha-olefin |
| NL163522B (nl) * | 1970-07-20 | 1980-04-15 | Montedison Spa | Werkwijze om een katalysator te bereiden voor de polymerisatie van alkenen-1. |
| DE2329641C3 (de) * | 1973-06-09 | 1978-09-28 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Polymerisation von ct-Olefinen |
| JPS51133386A (en) * | 1975-05-15 | 1976-11-19 | Nippon Oil Co Ltd | A process for manufacturing a polyolefin |
| IT1085542B (it) * | 1976-05-14 | 1985-05-28 | Battelle Memorial Institute | Procedimento per la preparazione di catalizzatori di polimerizzazione di olefine |
| US4278781A (en) * | 1977-10-12 | 1981-07-14 | Standard Oil Company (Indiana) | Catalyst and process for the polymerization of ethylene and terminal olefins |
| US4390677A (en) | 1978-03-31 | 1983-06-28 | Karol Frederick J | Article molded from ethylene hydrocarbon copolymer |
| DE2962947D1 (en) * | 1978-05-29 | 1982-07-15 | Montedison Spa | Catalysts for stereospecifically polymerizing olefins and process for preparing same |
| CA1132125A (en) * | 1978-09-05 | 1982-09-21 | Donald F. Birkelbach | High efficiency catalyst for polymerizing olefins |
| US4277370A (en) * | 1979-02-15 | 1981-07-07 | Standard Oil Company (Indiana) | Alpha-olefin polymerization catalyst |
| US4684703A (en) * | 1979-02-27 | 1987-08-04 | Union Carbide Corporation | Polymerization catalyst for ethylene homopolymerization |
| US4395359A (en) | 1979-02-27 | 1983-07-26 | Union Carbide Corporation | Polymerization catalyst, process for preparing, and use for ethylene homopolymerization |
| JPH0791327B2 (ja) * | 1988-03-24 | 1995-10-04 | 出光興産株式会社 | スチレン系重合体の製造方法とその触媒 |
| US4908189A (en) * | 1988-07-15 | 1990-03-13 | Henkel Corporation | Concentric tube ozonator |
| IT1271278B (it) * | 1994-12-15 | 1997-05-27 | Enichem Elastomers | Sistema catalitico supportato per la produzione di copolimeri etilene propilene |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3166542A (en) * | 1960-01-18 | 1965-01-19 | Cabot Corp | Surface treated inorganic solid polymerization catalyst and method of polymerization therewith |
| US3400110A (en) * | 1963-08-01 | 1968-09-03 | Solvay | Polymerization of olefins in the presence of a catalyst comprising an organometallic compound and the reaction product of a transition metal compound and a hydroxychloride of a bivalent metal |
| GB1189038A (en) * | 1968-09-11 | 1970-04-22 | Mitsui Petrochemical Ind | Novel Process for the Polymerisation of Ethylene and Novel Catalyst for use therein |
-
0
- NL NL135605D patent/NL135605C/xx active
-
1968
- 1968-01-17 FR FR136374A patent/FR1560467A/fr not_active Expired
- 1968-12-13 CH CH1861168A patent/CH490119A/fr not_active IP Right Cessation
- 1968-12-20 DE DE19681816048 patent/DE1816048B2/de not_active Ceased
- 1968-12-23 DK DK631368AA patent/DK123486B/da unknown
- 1968-12-31 GB GB1258880D patent/GB1258880A/en not_active Expired
- 1968-12-31 GB GB1257040D patent/GB1257040A/en not_active Expired
-
1969
- 1969-01-10 ES ES362338A patent/ES362338A1/es not_active Expired
- 1969-01-11 CA CA039,880A patent/CA1011047A/en not_active Expired
- 1969-01-13 US US790832A patent/US3883492A/en not_active Expired - Lifetime
- 1969-01-14 NL NL6900566A patent/NL6900566A/xx unknown
- 1969-01-14 BE BE726838A patent/BE726838A/fr unknown
- 1969-01-16 SE SE00552/69A patent/SE362083B/xx unknown
- 1969-01-16 AT AT46369A patent/AT309807B/de not_active IP Right Cessation
- 1969-01-16 FI FI690132A patent/FI49726C/fi active
- 1969-01-16 JP JP44002699A patent/JPS4810637B1/ja active Pending
- 1969-01-16 NO NO00165/69A patent/NO129045B/no unknown
- 1969-01-16 SE SE7200594A patent/SE372896B/xx unknown
- 1969-01-16 PL PL1969131221A patent/PL73471B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3883492A (en) | 1975-05-13 |
| NL135605C (en, 2012) | |
| DE1816048A1 (de) | 1969-07-31 |
| FI49726C (fi) | 1975-09-10 |
| AT309807B (de) | 1973-09-10 |
| NL6900566A (en, 2012) | 1969-07-21 |
| DK123486B (da) | 1972-06-26 |
| FI49726B (en, 2012) | 1975-06-02 |
| BE726838A (fr) | 1969-07-14 |
| CH490119A (fr) | 1970-05-15 |
| DE1816048B2 (de) | 1972-08-03 |
| GB1257040A (en, 2012) | 1971-12-15 |
| SE362083B (en, 2012) | 1973-11-26 |
| CA1011047A (en) | 1977-05-24 |
| GB1258880A (en, 2012) | 1971-12-30 |
| ES362338A1 (es) | 1970-12-01 |
| FR1560467A (en, 2012) | 1969-03-21 |
| NO129045B (en, 2012) | 1974-02-18 |
| JPS4810637B1 (en, 2012) | 1973-04-05 |
| SE372896B (en, 2012) | 1975-01-20 |
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