IL21972A - Thermoplastic sheet material,method of producing it,and method of making fibrous articles therefrom - Google Patents
Thermoplastic sheet material,method of producing it,and method of making fibrous articles therefromInfo
- Publication number
- IL21972A IL21972A IL21972A IL2197264A IL21972A IL 21972 A IL21972 A IL 21972A IL 21972 A IL21972 A IL 21972A IL 2197264 A IL2197264 A IL 2197264A IL 21972 A IL21972 A IL 21972A
- Authority
- IL
- Israel
- Prior art keywords
- sheet material
- lamellae
- phases
- phase
- material according
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 103
- 238000000034 method Methods 0.000 title claims description 39
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 229920001169 thermoplastic Polymers 0.000 title description 13
- 239000004416 thermosoftening plastic Substances 0.000 title description 9
- 229920000642 polymer Polymers 0.000 claims description 76
- -1 polyethylene Polymers 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 19
- 238000011282 treatment Methods 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 14
- 229920000573 polyethylene Polymers 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 5
- 229920002647 polyamide Polymers 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 229920001519 homopolymer Polymers 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 241000446313 Lamella Species 0.000 claims description 3
- 229920001281 polyalkylene Polymers 0.000 claims description 2
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000008241 heterogeneous mixture Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 description 22
- 206010042674 Swelling Diseases 0.000 description 14
- 230000008961 swelling Effects 0.000 description 14
- 229920001971 elastomer Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- 230000016507 interphase Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003292 diminished effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000003495 polar organic solvent Substances 0.000 description 2
- 229920002959 polymer blend Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 210000001724 microfibril Anatomy 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/47—Processes of splitting film, webs or sheets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S521/918—Physical aftertreatment of a cellular product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/268—Monolayer with structurally defined element
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33978/63A GB1103114A (en) | 1963-08-28 | 1963-08-28 | Thermoplastic sheet material, method of producing it, and method of making fibrous articles therefrom |
| GB1575264 | 1964-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL21972A true IL21972A (en) | 1968-09-26 |
Family
ID=26251522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL21972A IL21972A (en) | 1963-08-28 | 1964-07-25 | Thermoplastic sheet material,method of producing it,and method of making fibrous articles therefrom |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3511742A (de) |
| AT (2) | AT319457B (de) |
| CH (1) | CH568142A5 (de) |
| DE (3) | DE1785567A1 (de) |
| FI (2) | FI45631C (de) |
| FR (1) | FR1405162A (de) |
| GB (1) | GB1103114A (de) |
| IL (1) | IL21972A (de) |
| NL (1) | NL145489B (de) |
| SE (2) | SE364531B (de) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3632282A (en) * | 1965-06-08 | 1972-01-04 | Rasmussen O B | Apparatus for producing filamentary or sheetlike material of plural components |
| US3707341A (en) * | 1966-09-08 | 1972-12-26 | Akzona Inc | Apparatus for making multifilament yarns |
| US3950475A (en) * | 1969-02-05 | 1976-04-13 | Smith & Nephew Polyfabrik Limited | Method of producing banded fibers from a thermoplastic sheet |
| US3716614A (en) * | 1969-05-12 | 1973-02-13 | Toray Industries | Process of manufacturing collagen fiber-like synthetic superfine filament bundles |
| DE1932970C3 (de) * | 1969-06-28 | 1978-05-24 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Anwendung des Verfahrens zur Erhöhung der Anisotropie von stranggepreßten Körpern auf die Herstellung von Dauermagneten und Vorrichtung zur Durchführung dieses Verfahrens |
| US3929939A (en) * | 1972-01-20 | 1975-12-30 | Monsanto Res Corp | Large void-free polyethylene castings comprising high density polyethylene in a low density polyethylene matrix |
| US4019844A (en) * | 1973-02-26 | 1977-04-26 | Toray Industries, Inc. | Apparatus for producing multiple layers conjugate fibers |
| FR2226438B1 (de) * | 1973-04-20 | 1977-02-18 | Kleber Colombes | |
| DE2331933C3 (de) * | 1973-06-26 | 1979-11-08 | Sumitomo Chemical Co., Ltd., Osaka (Japan) | Verschäumbare Formmasse und Verfahren zur Herstellung einer Propylenpolymerisatschaumstofflage |
| US3979357A (en) * | 1973-12-13 | 1976-09-07 | Monsanto Research Corporation | Large void-free polyethylene |
| US3920366A (en) * | 1974-04-04 | 1975-11-18 | Rowland Inc | Extrusion apparatus using perforated member in discharge passage for producing sheet material with multicolor striated pattern |
| US4011292A (en) * | 1974-04-04 | 1977-03-08 | Rowland, Incorporated | Method for producing sheet material with multicolor striated pattern and sheet material produced thereby |
| IN144765B (de) * | 1975-02-12 | 1978-07-01 | Rasmussen O B | |
| US4289832A (en) * | 1975-03-31 | 1981-09-15 | Biax Fiberfilm Corp. | Chemically-impregnated microporous films |
| US4115499A (en) * | 1975-04-04 | 1978-09-19 | Monsanto Research Corporation | Large void-free polyethylene castings |
| US4141773A (en) * | 1977-02-24 | 1979-02-27 | Pnc Company | Process and apparatus for manufacturing a non-woven fabric and the product thereof |
| US4227957A (en) * | 1977-02-24 | 1980-10-14 | Pnc Company | Process and apparatus for manufacturing a non-woven fabric and the product thereof |
| EP0341753B1 (de) * | 1982-03-26 | 1995-08-16 | Ole-Bendt Rasmussen | Verfahren zur Herstellung eines hochfesten Schichtmaterials |
| US4814131A (en) * | 1987-07-02 | 1989-03-21 | Atlas Sheldon M | Process for producing a shaped article, such as fiber composed of a hydrophobic polymer and a hydrophilic polymer |
| US5244378A (en) * | 1991-12-13 | 1993-09-14 | International Business Machines Corporation | Apparatus for dynamic gating of polymers for producing molded articles with isotropic properties |
| US5366782A (en) * | 1992-08-25 | 1994-11-22 | The Procter & Gamble Company | Polymeric web having deformed sections which provide a substantially increased elasticity to the web |
| USH2042H1 (en) | 1997-05-09 | 2002-08-06 | The Procter & Gamble Company | Method for forming a breathable film |
| AU758978B2 (en) * | 1999-04-13 | 2003-04-03 | Ole-Bendt Rasmussen | Food product which artificially has been given a cell-like structure by coextrusion of several components, and method and apparatus for manufacturing such food product |
| GB0424355D0 (en) * | 2004-11-03 | 2004-12-08 | Rasmussen O B | Improved method of manufacturing an alloyed film apparatus for the method and resultant products |
| US7513766B2 (en) * | 2005-10-11 | 2009-04-07 | Cryovac, Inc. | Extrusion apparatus having a driven feed segment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2371349A (en) * | 1941-03-24 | 1945-03-13 | Monsanto Chemicals | Process of preparing plastic material |
| US2573050A (en) * | 1948-12-03 | 1951-10-30 | Nixon Nitration Works | Method of extruding plastic rods having a spiral design |
| US2815033A (en) * | 1954-02-08 | 1957-12-03 | American Viscose Corp | Alternate flow control for fluid streams |
| US3013309A (en) * | 1958-07-07 | 1961-12-19 | Du Pont | Extrusion method |
-
1963
- 1963-08-28 GB GB33978/63A patent/GB1103114A/en not_active Expired
-
1964
- 1964-07-25 IL IL21972A patent/IL21972A/en unknown
- 1964-08-25 US US391997A patent/US3511742A/en not_active Expired - Lifetime
- 1964-08-27 DE DE19641785567 patent/DE1785567A1/de active Pending
- 1964-08-27 DE DE1569335A patent/DE1569335C3/de not_active Expired
- 1964-08-27 DE DE19641779929 patent/DE1779929A1/de active Pending
- 1964-08-28 FR FR986488A patent/FR1405162A/fr not_active Expired
- 1964-08-28 AT AT00829/71A patent/AT319457B/de not_active IP Right Cessation
- 1964-08-28 SE SE12456/69A patent/SE364531B/xx unknown
- 1964-08-28 CH CH1127464A patent/CH568142A5/de not_active IP Right Cessation
- 1964-08-28 AT AT746964A patent/AT299553B/de not_active IP Right Cessation
- 1964-08-28 FI FI641835A patent/FI45631C/fi active
- 1964-08-28 NL NL646410073A patent/NL145489B/xx unknown
- 1964-08-28 SE SE10352/64A patent/SE334462B/xx unknown
-
1970
- 1970-04-06 FI FI700948A patent/FI46926C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| US3511742A (en) | 1970-05-12 |
| FR1405162A (fr) | 1965-07-02 |
| FI46926C (fi) | 1973-08-10 |
| SE334462B (de) | 1971-04-26 |
| NL6410073A (de) | 1965-03-01 |
| SE364531B (de) | 1974-02-25 |
| GB1103114A (en) | 1968-02-14 |
| AT319457B (de) | 1974-12-27 |
| DE1569335C3 (de) | 1975-03-27 |
| DE1569335A1 (de) | 1971-12-16 |
| FI45631C (fi) | 1972-07-10 |
| DE1779929A1 (de) | 1972-01-13 |
| NL145489B (nl) | 1975-04-15 |
| DE1785567A1 (de) | 1972-01-05 |
| CH568142A5 (en) | 1975-10-31 |
| FI45631B (de) | 1972-05-02 |
| DE1569335B2 (de) | 1974-08-01 |
| FI46926B (de) | 1973-05-02 |
| AT299553B (de) | 1972-06-26 |
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