CA1215200A - Particulate polystyrene containing blowing agent and having improved expandability - Google Patents
Particulate polystyrene containing blowing agent and having improved expandabilityInfo
- Publication number
- CA1215200A CA1215200A CA000436905A CA436905A CA1215200A CA 1215200 A CA1215200 A CA 1215200A CA 000436905 A CA000436905 A CA 000436905A CA 436905 A CA436905 A CA 436905A CA 1215200 A CA1215200 A CA 1215200A
- Authority
- CA
- Canada
- Prior art keywords
- molecular weight
- styrene
- polystyrene
- weight
- blowing agent
- 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
- 239000004793 Polystyrene Substances 0.000 title claims abstract description 32
- 229920002223 polystyrene Polymers 0.000 title claims abstract description 30
- 239000004604 Blowing Agent Substances 0.000 title claims abstract description 24
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000012546 transfer Methods 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000005227 gel permeation chromatography Methods 0.000 claims description 4
- 239000012986 chain transfer agent Substances 0.000 claims description 3
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 26
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 229940044603 styrene Drugs 0.000 description 18
- 229920000642 polymer Polymers 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical class [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 5
- 238000010097 foam moulding Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- WQAQPCDUOCURKW-UHFFFAOYSA-N butanethiol Chemical compound CCCCS WQAQPCDUOCURKW-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- -1 dicumyl peroxides Chemical class 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 239000004794 expanded polystyrene Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 150000005526 organic bromine compounds Chemical class 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- HJUGFYREWKUQJT-UHFFFAOYSA-N tetrabromomethane Chemical compound BrC(Br)(Br)Br HJUGFYREWKUQJT-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZUDLIFVTNPYZJH-UHFFFAOYSA-N 1,1,2,2-tetraphenylethylbenzene Chemical compound C1=CC=CC=C1C(C(C=1C=CC=CC=1)(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 ZUDLIFVTNPYZJH-UHFFFAOYSA-N 0.000 description 1
- DEIGXXQKDWULML-UHFFFAOYSA-N 1,2,5,6,9,10-hexabromocyclododecane Chemical compound BrC1CCC(Br)C(Br)CCC(Br)C(Br)CCC1Br DEIGXXQKDWULML-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 241000518994 Conta Species 0.000 description 1
- 101000952982 Conus striatus Conopressin-S Proteins 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 241000611421 Elia Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- AFYPFACVUDMOHA-UHFFFAOYSA-N chlorotrifluoromethane Chemical compound FC(F)(F)Cl AFYPFACVUDMOHA-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 description 1
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 description 1
- 150000002314 glycerols Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical compound C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 description 1
- NWIKMSABBNGQRG-UHFFFAOYSA-N tris(3,3-dibromopropyl) phosphate Chemical compound BrC(Br)CCOP(=O)(OCCC(Br)Br)OCCC(Br)Br NWIKMSABBNGQRG-UHFFFAOYSA-N 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
- C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
-
- 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
- C08F12/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F12/02—Monomers containing only one unsaturated aliphatic radical
- C08F12/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F12/06—Hydrocarbons
- C08F12/08—Styrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3234660A DE3234660C2 (de) | 1982-09-18 | 1982-09-18 | Verfahren zur Herstellung von teilchenförmigen,treibmittelhaltigen Styrolpolymerisaten |
| DEP3234660.3 | 1982-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1215200A true CA1215200A (en) | 1986-12-09 |
Family
ID=6173577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000436905A Expired CA1215200A (en) | 1982-09-18 | 1983-09-16 | Particulate polystyrene containing blowing agent and having improved expandability |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US4513105A (en, 2012) |
| EP (1) | EP0106129B1 (en, 2012) |
| JP (1) | JPS59145223A (en, 2012) |
| CA (1) | CA1215200A (en, 2012) |
| DE (2) | DE3234660C2 (en, 2012) |
| ES (1) | ES525683A0 (en, 2012) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921148A1 (de) * | 1989-06-28 | 1991-01-10 | Basf Ag | Perlfoermige expandierbare styrolpolymerisate mit hohem expandiervermoegen |
| US5262445A (en) * | 1989-09-23 | 1993-11-16 | Basf Aktiengesellschaft | Heat distortion resistant, expandable styrene polymers having a high capacity for expansion |
| DE3931862A1 (de) * | 1989-09-23 | 1991-04-04 | Basf Ag | Waermeformbestaendige expandierbare styrolpolymerisate mit hoher expandierbarkeit |
| US5240657A (en) * | 1990-11-26 | 1993-08-31 | Basf Corporation | Process for making expanded polymeric product with low level of emission of blowing agent |
| US5114640A (en) * | 1990-11-26 | 1992-05-19 | Basf Corporation | Time-efficient process for making expanded polymeric products with multipass expansion of polystyrene bead |
| US5115066A (en) * | 1990-11-26 | 1992-05-19 | Basf Corporation | Polystyrene having high degree of expandability, and formulation having a highly-expandable polymer therein |
| DE4038044A1 (de) * | 1990-11-29 | 1992-06-04 | Basf Ag | Expandierbare styrolpolymerisate mit hoher expandierbarkeit |
| DE4038043A1 (de) * | 1990-11-29 | 1992-06-04 | Basf Ag | Expandierbare styrolpolymerisate |
| DE4104418C1 (en, 2012) * | 1991-02-14 | 1992-05-14 | Basf Ag, 6700 Ludwigshafen, De | |
| US5227463A (en) * | 1992-06-12 | 1993-07-13 | Polysar Rubber Corporation | Process for the manufacture of functionalized resins from styrene, divinyl benzene and alkane dithiol |
| DE4416862A1 (de) * | 1994-05-13 | 1996-02-22 | Basf Ag | Expandierbare Styrolpolymerisate |
| DE4416852A1 (de) * | 1994-05-13 | 1995-11-16 | Basf Ag | Expandierbare Styrolpolymerisate |
| DE4416861A1 (de) * | 1994-05-13 | 1995-11-16 | Basf Ag | Expandierbare Styrolpolymerisate |
| US5688832A (en) * | 1994-09-16 | 1997-11-18 | The Dow Chemical Company | Low molecular weight alkenyl aromatic polymer foam |
| FR2725996A1 (fr) * | 1994-10-21 | 1996-04-26 | Bp Chem Int Ltd | Procede de (co-)polymerisation du styrene en suspension aqueuse |
| FR2725995A1 (fr) * | 1994-10-21 | 1996-04-26 | Bp Chem Int Ltd | Procede de (co-)polymerisation du styrene en suspension aqueuse |
| US5686497A (en) * | 1994-11-15 | 1997-11-11 | Shell Oil Company | Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer |
| US5591778A (en) * | 1995-08-14 | 1997-01-07 | Basf Aktiengesellschaft | Process for the preparation of expandable polystyrene |
| DE19629791A1 (de) * | 1996-07-24 | 1998-01-29 | Basf Ag | Expandierbare Styrolpolymerisate |
| US5977195A (en) * | 1997-08-01 | 1999-11-02 | Huntsman Corporation | Expandable thermoplastic polymer particles and method for making same |
| US6218002B1 (en) * | 1997-12-16 | 2001-04-17 | Polysource, Inc. | Concrete mix containing polystyrene beads |
| CA2309442C (en) | 1999-06-03 | 2009-04-28 | Nova Chemicals (International) S.A. | Process for the preparation of polymer particles |
| ITMI20020584A1 (it) * | 2002-03-20 | 2003-09-22 | Polimeri Europa Spa | Composizioni a base di polimeri vinilaromatici espandibili a migliorata espandibilita' |
| US20030225172A1 (en) * | 2002-05-31 | 2003-12-04 | Miller Larry M. | To enhance the thermal insulation of polymeric foam by reducing cell anisotropic ratio and the method for production thereof |
| DE102004034527A1 (de) * | 2004-07-15 | 2006-02-16 | Basf Ag | Verfahren zur Herstellung von expandierbaren Styrolpolymeren mit verbesserter Expandierbarkeit |
| ES2641263T3 (es) | 2006-10-19 | 2017-11-08 | Basf Se | Materiales ligeros a base de madera |
| EP2042560A1 (de) | 2007-09-19 | 2009-04-01 | Basf Se | Leichte Holzwerkstoffe mit guten mechanischen Eigenschaften und geringer Formaldehyd-Emission |
| EP2542393A1 (de) * | 2010-03-04 | 2013-01-09 | Basf Se | Lignocellulosewerkstoffe mit guten mechanischen eigenschaften |
| JP5824263B2 (ja) * | 2010-07-16 | 2015-11-25 | 株式会社カネカ | 発泡性熱可塑性樹脂粒子 |
| DE102013226502A1 (de) | 2013-12-18 | 2015-06-18 | Tesa Se | Verfahren zur Herstellung kurzkettiger Makromoleküle auf Styrolbasis |
| JP6407077B2 (ja) * | 2014-03-31 | 2018-10-17 | 積水化成品工業株式会社 | ポリスチレン系発泡成形体、発泡性粒子、予備発泡粒子 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR962228A (en, 2012) * | 1946-12-05 | 1950-06-07 | ||
| FR1480502A (fr) * | 1965-05-13 | 1967-05-12 | Foster Grant Co Inc | Procédé de préparation de particules plastiques dilatables |
| SE346114B (en, 2012) * | 1965-05-13 | 1972-06-26 | Hoechst Ag | |
| ES366286A1 (es) * | 1968-08-07 | 1971-02-16 | Koppers Co Inc | Metodo para preparar particulas de copolimero de vinilari- lacrilonitrilo expandible, finamente dividido. |
| DE2420298A1 (de) * | 1974-04-26 | 1975-11-06 | Basf Ag | Zu schaumstoffen niederer dichte expandierbare styrolpolymerisate |
| FI752642A7 (en, 2012) * | 1974-10-11 | 1976-04-12 | Basf Ag | |
| JPS6051483B2 (ja) * | 1977-08-29 | 1985-11-14 | ダイセル化学工業株式会社 | 溶媒揮発型塗料用樹脂の製造方法 |
| DE2840355C2 (de) * | 1978-09-16 | 1980-07-03 | Chemische Werke Huels Ag, 4370 Marl | Feinteilige expandierbare Styrolpolymerisate zur Herstellung von Schaumstoffkörpern mit kurzen Mindestformverweilzeiten |
| DE3234664A1 (de) * | 1982-09-18 | 1984-03-22 | Basf Ag, 6700 Ludwigshafen | Schaumkunststoffteilchen auf basis von poly-p-methylstyrol |
-
1982
- 1982-09-18 DE DE3234660A patent/DE3234660C2/de not_active Expired
-
1983
- 1983-09-08 EP EP83108875A patent/EP0106129B1/de not_active Expired
- 1983-09-08 DE DE8383108875T patent/DE3365455D1/de not_active Expired
- 1983-09-16 CA CA000436905A patent/CA1215200A/en not_active Expired
- 1983-09-16 ES ES525683A patent/ES525683A0/es active Granted
- 1983-09-16 JP JP58169502A patent/JPS59145223A/ja active Granted
-
1984
- 1984-06-21 US US06/623,211 patent/US4513105A/en not_active Expired - Lifetime
- 1984-06-21 US US06/623,197 patent/US4525484A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES8405423A1 (es) | 1984-06-01 |
| JPH0577696B2 (en, 2012) | 1993-10-27 |
| DE3234660C2 (de) | 1984-07-19 |
| EP0106129B1 (de) | 1986-08-20 |
| DE3234660A1 (de) | 1984-03-22 |
| ES525683A0 (es) | 1984-06-01 |
| EP0106129A3 (en) | 1985-05-15 |
| EP0106129A2 (de) | 1984-04-25 |
| JPS59145223A (ja) | 1984-08-20 |
| US4525484A (en) | 1985-06-25 |
| DE3365455D1 (en) | 1986-09-25 |
| US4513105A (en) | 1985-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |