DE2126250C3 - Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger Molekulargewichtsverteilung - Google Patents
Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger MolekulargewichtsverteilungInfo
- Publication number
- DE2126250C3 DE2126250C3 DE2126250A DE2126250A DE2126250C3 DE 2126250 C3 DE2126250 C3 DE 2126250C3 DE 2126250 A DE2126250 A DE 2126250A DE 2126250 A DE2126250 A DE 2126250A DE 2126250 C3 DE2126250 C3 DE 2126250C3
- Authority
- DE
- Germany
- Prior art keywords
- polyethylene
- mixtures
- catalyst
- reaction product
- molecular weight
- 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
- -1 polyethylene Polymers 0.000 title claims description 98
- 239000004698 Polyethylene Substances 0.000 title claims description 40
- 229920000573 polyethylene Polymers 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000009826 distribution Methods 0.000 title claims description 11
- 239000003054 catalyst Substances 0.000 claims description 54
- 229910052739 hydrogen Inorganic materials 0.000 claims description 35
- 229910052782 aluminium Inorganic materials 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 239000007795 chemical reaction product Substances 0.000 claims description 26
- 229920001296 polysiloxane Polymers 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 18
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 17
- 239000005977 Ethylene Substances 0.000 claims description 17
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 11
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- HKJYVRJHDIPMQB-UHFFFAOYSA-N propan-1-olate;titanium(4+) Chemical compound CCCO[Ti](OCCC)(OCCC)OCCC HKJYVRJHDIPMQB-UHFFFAOYSA-N 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 4
- 238000010626 work up procedure Methods 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical class [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 claims 1
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 description 24
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 14
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 13
- 150000003609 titanium compounds Chemical class 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- 239000000725 suspension Substances 0.000 description 9
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000012442 inert solvent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 150000003377 silicon compounds Chemical class 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 2
- 238000011067 equilibration Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
- FARHYDJOXLCMRP-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]pyrazol-3-yl]oxyacetic acid Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(N1CC2=C(CC1)NN=N2)=O)OCC(=O)O FARHYDJOXLCMRP-UHFFFAOYSA-N 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-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
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910010165 TiCu Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical group 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000005234 alkyl aluminium group Chemical group 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Substances CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000037048 polymerization activity Effects 0.000 description 1
- 229920001843 polymethylhydrosiloxane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000010104 thermoplastic forming Methods 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- IMRYETFJNLKUHK-UHFFFAOYSA-N traseolide Chemical compound CC1=C(C(C)=O)C=C2C(C(C)C)C(C)C(C)(C)C2=C1 IMRYETFJNLKUHK-UHFFFAOYSA-N 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
- 238000005292 vacuum distillation Methods 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
-
- 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)
- General Chemical & Material Sciences (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2126250A DE2126250C3 (de) | 1971-05-26 | 1971-05-26 | Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger Molekulargewichtsverteilung |
| US00253887A US3755274A (en) | 1971-05-26 | 1972-05-16 | Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution |
| NL7206844A NL7206844A (enExample) | 1971-05-26 | 1972-05-19 | |
| CA142,588A CA1000449A (en) | 1971-05-26 | 1972-05-19 | Catalyst and process for the preparation of polyethylenes having a narrow molecular-weight distribution |
| AT440772A AT312928B (de) | 1971-05-26 | 1972-05-19 | Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger Molekulargewichtsverteilung |
| DD163205A DD96711A5 (enExample) | 1971-05-26 | 1972-05-23 | |
| SU1788185A SU439990A3 (ru) | 1971-05-26 | 1972-05-23 | Способ плучения полимеров или сополимеров этилена |
| BE783804A BE783804A (fr) | 1971-05-26 | 1972-05-23 | Preparation de polyethylenes a etroite distribution des poids moleculaires |
| SE7206778A SE402297B (sv) | 1971-05-26 | 1972-05-24 | Forfarande for framstellning av polyeten eller modifierad polyeten med snev molekylviktsfordelning |
| JP47051573A JPS4948661B1 (enExample) | 1971-05-26 | 1972-05-24 | |
| ES403131A ES403131A1 (es) | 1971-05-26 | 1972-05-24 | Procedimiento para la preparacion de polietileno o polieti-leno modificado con estrecha distribucion de pesos molecula-res. |
| FR7218639A FR2139015B1 (enExample) | 1971-05-26 | 1972-05-25 | |
| GB2496672A GB1390249A (en) | 1971-05-26 | 1972-05-26 | Polysiloxane catalysts for the polymerisation of ethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2126250A DE2126250C3 (de) | 1971-05-26 | 1971-05-26 | Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger Molekulargewichtsverteilung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2126250A1 DE2126250A1 (de) | 1972-12-07 |
| DE2126250B2 DE2126250B2 (de) | 1979-10-04 |
| DE2126250C3 true DE2126250C3 (de) | 1980-06-12 |
Family
ID=5809022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2126250A Expired DE2126250C3 (de) | 1971-05-26 | 1971-05-26 | Verfahren zur Herstellung von Polyäthylen oder modifiziertem Polyäthylen mit enger Molekulargewichtsverteilung |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3755274A (enExample) |
| JP (1) | JPS4948661B1 (enExample) |
| AT (1) | AT312928B (enExample) |
| BE (1) | BE783804A (enExample) |
| CA (1) | CA1000449A (enExample) |
| DD (1) | DD96711A5 (enExample) |
| DE (1) | DE2126250C3 (enExample) |
| ES (1) | ES403131A1 (enExample) |
| FR (1) | FR2139015B1 (enExample) |
| GB (1) | GB1390249A (enExample) |
| NL (1) | NL7206844A (enExample) |
| SE (1) | SE402297B (enExample) |
| SU (1) | SU439990A3 (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2206386A1 (de) * | 1972-02-10 | 1973-08-16 | Wacker Chemie Gmbh | Verfahren zur erhoehung des molekulargewichtes von niederdruckpolyaethylen |
| FR2241569B1 (enExample) * | 1973-08-21 | 1979-03-02 | Ethylene Plastique Sa | |
| DE2414784C3 (de) * | 1974-03-27 | 1980-10-09 | Wacker-Chemie Gmbh, 8000 Muenchen | Verfahren zur Herstellung von Niederdruckpolyäthylen |
| DE2414875C2 (de) * | 1974-03-27 | 1984-04-12 | Wacker-Chemie GmbH, 8000 München | Verfahren zur Herstellung von Reduktionsmitteln |
| CA1058144A (en) * | 1974-05-25 | 1979-07-10 | Itsuho Aishima | Process of production of polyethylene |
| CA1062692A (en) * | 1974-05-25 | 1979-09-18 | Itsuho Aishima | Process for polymerizing ethylene |
| US4507450A (en) * | 1976-08-18 | 1985-03-26 | Mitsubishi Chemical Industries Limited | Process for preparing polyolefin |
| JPS57205406A (en) * | 1981-06-11 | 1982-12-16 | Toyo Sutoufuaa Chem:Kk | Catalytic component for alpha-olefin polymerization and homopolymerization or copolymerization of alpha-olefin |
| JPS59120602A (ja) * | 1982-12-27 | 1984-07-12 | Nippon Oil Co Ltd | ポリオレフインの製造方法 |
| DE19741201A1 (de) | 1997-09-18 | 1999-03-25 | Wacker Chemie Gmbh | Auf Organopolysiloxanmikrogelpartikeln immobilisierte Organoaluminiumverbindungen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1545177B2 (de) * | 1960-04-19 | 1972-01-05 | Wacker-Chemie GmbH, 8000 München | Verfahren zur herstellung von katalysatoren fuer die pola merisation ungesaettigter organischer verbindungen |
| GB1016512A (en) * | 1961-07-28 | 1966-01-12 | Kogyogijutsuin | Preparation of a new type polymer silicopolypropylene |
| US3661878A (en) * | 1969-07-09 | 1972-05-09 | Asahi Chemical Ind | Process for producing ethylene polymers and ethylene copolymers |
-
1971
- 1971-05-26 DE DE2126250A patent/DE2126250C3/de not_active Expired
-
1972
- 1972-05-16 US US00253887A patent/US3755274A/en not_active Expired - Lifetime
- 1972-05-19 CA CA142,588A patent/CA1000449A/en not_active Expired
- 1972-05-19 NL NL7206844A patent/NL7206844A/xx not_active Application Discontinuation
- 1972-05-19 AT AT440772A patent/AT312928B/de not_active IP Right Cessation
- 1972-05-23 SU SU1788185A patent/SU439990A3/ru active
- 1972-05-23 DD DD163205A patent/DD96711A5/xx unknown
- 1972-05-23 BE BE783804A patent/BE783804A/xx unknown
- 1972-05-24 JP JP47051573A patent/JPS4948661B1/ja active Pending
- 1972-05-24 ES ES403131A patent/ES403131A1/es not_active Expired
- 1972-05-24 SE SE7206778A patent/SE402297B/xx unknown
- 1972-05-25 FR FR7218639A patent/FR2139015B1/fr not_active Expired
- 1972-05-26 GB GB2496672A patent/GB1390249A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2126250B2 (de) | 1979-10-04 |
| AT312928B (de) | 1974-01-25 |
| US3755274A (en) | 1973-08-28 |
| DD96711A5 (enExample) | 1973-04-05 |
| DE2126250A1 (de) | 1972-12-07 |
| FR2139015A1 (enExample) | 1973-01-05 |
| CA1000449A (en) | 1976-11-23 |
| GB1390249A (en) | 1975-04-09 |
| SU439990A3 (ru) | 1974-08-15 |
| ES403131A1 (es) | 1975-04-16 |
| JPS4948661B1 (enExample) | 1974-12-23 |
| FR2139015B1 (enExample) | 1980-03-21 |
| NL7206844A (enExample) | 1972-11-28 |
| BE783804A (fr) | 1972-11-23 |
| SE402297B (sv) | 1978-06-26 |
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