CH619178A5 - - Google Patents
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- Publication number
- CH619178A5 CH619178A5 CH442876A CH442876A CH619178A5 CH 619178 A5 CH619178 A5 CH 619178A5 CH 442876 A CH442876 A CH 442876A CH 442876 A CH442876 A CH 442876A CH 619178 A5 CH619178 A5 CH 619178A5
- Authority
- CH
- Switzerland
- Prior art keywords
- copolymer
- fibers
- film
- vinyl
- weight
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 claims description 25
- -1 polypropylene Polymers 0.000 claims description 25
- 239000004743 Polypropylene Substances 0.000 claims description 24
- 229920001155 polypropylene Polymers 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- 239000004753 textile Substances 0.000 claims description 19
- 229920006163 vinyl copolymer Polymers 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 14
- 206010061592 cardiac fibrillation Diseases 0.000 claims description 13
- 230000002600 fibrillogenic effect Effects 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 9
- 239000005977 Ethylene Substances 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229920002647 polyamide Polymers 0.000 claims description 9
- 229920001897 terpolymer Polymers 0.000 claims description 9
- 229920001519 homopolymer Polymers 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 6
- 150000007524 organic acids Chemical class 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 239000011872 intimate mixture Substances 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 46
- 239000010408 film Substances 0.000 description 34
- 238000010438 heat treatment Methods 0.000 description 12
- 239000000975 dye Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920003345 Elvax® Polymers 0.000 description 4
- 238000009960 carding Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 229920000299 Nylon 12 Polymers 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 235000019808 microcrystalline wax Nutrition 0.000 description 2
- 239000004200 microcrystalline wax Substances 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920006099 Vestamid® Polymers 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 239000010784 textile waste Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
- D04H13/02—Production of non-woven fabrics by partial defibrillation of oriented thermoplastics films
-
- 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
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/14—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
- B29C48/147—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle
- B29C48/1472—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration after the die nozzle at the die nozzle exit zone
-
- 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
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/42—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
- D01D5/423—Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/007—Using fluid under pressure
-
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Multicomponent Fibers (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Artificial Filaments (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7511489A FR2306818A1 (fr) | 1975-04-10 | 1975-04-10 | Procede pour la fabrication d'elements textiles frises par fibrillation de films et produits obtenus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH619178A5 true CH619178A5 (en, 2012) | 1980-09-15 |
Family
ID=9153861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH442876A CH619178A5 (en, 2012) | 1975-04-10 | 1976-04-08 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4102969A (en, 2012) |
| JP (1) | JPS5242914A (en, 2012) |
| AU (1) | AU505153B2 (en, 2012) |
| BE (1) | BE840615A (en, 2012) |
| CH (1) | CH619178A5 (en, 2012) |
| DE (1) | DE2615444A1 (en, 2012) |
| FR (1) | FR2306818A1 (en, 2012) |
| GB (1) | GB1523206A (en, 2012) |
| IT (1) | IT1057503B (en, 2012) |
| NL (1) | NL7603690A (en, 2012) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2418015A1 (fr) * | 1978-02-22 | 1979-09-21 | Tissmetal Lionel Dupont | Procede de fabrication d'un element filtrant en feutre, ainsi qu'un tel element obtenu par ce procede |
| FR2465815A1 (fr) * | 1979-09-20 | 1981-03-27 | Anvar | Nouveau materiau recureur et procede pour le preparer |
| US4615859A (en) * | 1981-05-13 | 1986-10-07 | Rogers Corporation | Method of manufacture of improved radome structure |
| US4623505A (en) * | 1981-05-13 | 1986-11-18 | Rogers Corporation | Method of improving structures comprised of fiber reinforced plastic |
| US5759926A (en) * | 1995-06-07 | 1998-06-02 | Kimberly-Clark Worldwide, Inc. | Fine denier fibers and fabrics made therefrom |
| DE69626303T2 (de) | 1995-11-30 | 2003-12-11 | Kimberly-Clark Worldwide, Inc. | Vliesstoff aus sehr dünnen mikrofasern |
| US7438777B2 (en) * | 2005-04-01 | 2008-10-21 | North Carolina State University | Lightweight high-tensile, high-tear strength bicomponent nonwoven fabrics |
| US7883772B2 (en) * | 2005-06-24 | 2011-02-08 | North Carolina State University | High strength, durable fabrics produced by fibrillating multilobal fibers |
| US7981226B2 (en) * | 2005-06-24 | 2011-07-19 | North Carolina State University | High strength, durable micro and nano-fiber fabrics produced by fibrillating bicomponent islands in the sea fibers |
| US20100029161A1 (en) * | 2005-06-24 | 2010-02-04 | North Carolina State University | Microdenier fibers and fabrics incorporating elastomers or particulate additives |
| DE102009037740A1 (de) * | 2009-08-17 | 2011-02-24 | Oerlikon Textile Gmbh & Co. Kg | Verfahren und Vorrichtung zur Herstellung eines Grasgarnes |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3418200A (en) * | 1964-11-27 | 1968-12-24 | Du Pont | Splittable composite filament |
| GB1148382A (en) * | 1965-02-23 | 1969-04-10 | Rasmussen O B | Split films of polymer material |
| US3900678A (en) * | 1965-10-23 | 1975-08-19 | Asahi Chemical Ind | Composite filaments and process for the production thereof |
| GB1169782A (en) * | 1966-02-24 | 1969-11-05 | Ici Ltd | Improvements in or relating to Polyamide/Polyester Conjugate Filaments |
| CA937720A (en) * | 1966-08-31 | 1973-12-04 | Shell Internationale Research Maatschappij, N.V. | Method for the production of crimped fibres from thermoplastic macromolecular materials |
| GB1240661A (en) * | 1967-08-09 | 1971-07-28 | Ole-Bendt Rasmussen | Method of producing filaments, fibres or fibre networks |
| US3460337A (en) * | 1967-12-18 | 1969-08-12 | Hercules Inc | Synthetic yarn and method of making the same |
| GB1206180A (en) * | 1967-12-21 | 1970-09-23 | Monsanto Chemicals | Fibre assemblies |
| CA920316A (en) * | 1968-02-29 | 1973-02-06 | Kanegafuchi Boseki Kabushiki Kaisha | Multi-component mixed filament with nebular configuration |
| US3548048A (en) * | 1968-05-20 | 1970-12-15 | Phillips Petroleum Co | Method of producing polymeric articles resistant to fibrillation |
| US3801429A (en) * | 1969-06-06 | 1974-04-02 | Dow Chemical Co | Multilayer plastic articles |
| US3825644A (en) * | 1969-08-11 | 1974-07-23 | Crown Zellerbach Corp | Process for producing multilaminate film |
| US3882219A (en) * | 1971-03-29 | 1975-05-06 | Cosden Oil & Chem Co | Co-extrusion of acrylic ester polymer/polystyrene multiple-layered sheeting |
| JPS5141157B2 (en, 2012) * | 1972-08-08 | 1976-11-08 | ||
| GB1451607A (en) | 1972-11-03 | 1976-10-06 | Shell Int Research | Dyeable polymer compositions |
-
1975
- 1975-04-10 FR FR7511489A patent/FR2306818A1/fr active Granted
-
1976
- 1976-04-05 US US05/673,471 patent/US4102969A/en not_active Expired - Lifetime
- 1976-04-08 CH CH442876A patent/CH619178A5/fr not_active IP Right Cessation
- 1976-04-08 NL NL7603690A patent/NL7603690A/xx not_active Application Discontinuation
- 1976-04-09 BE BE166044A patent/BE840615A/xx not_active IP Right Cessation
- 1976-04-09 IT IT48945/76A patent/IT1057503B/it active
- 1976-04-09 DE DE19762615444 patent/DE2615444A1/de not_active Ceased
- 1976-04-09 AU AU12846/76A patent/AU505153B2/en not_active Expired
- 1976-04-09 GB GB14587/76A patent/GB1523206A/en not_active Expired
- 1976-04-10 JP JP51040827A patent/JPS5242914A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL7603690A (nl) | 1976-10-12 |
| DE2615444A1 (de) | 1976-10-21 |
| FR2306818A1 (fr) | 1976-11-05 |
| AU505153B2 (en) | 1979-11-08 |
| GB1523206A (en) | 1978-08-31 |
| IT1057503B (it) | 1982-03-30 |
| JPS5242914A (en) | 1977-04-04 |
| BE840615A (fr) | 1976-08-02 |
| FR2306818B1 (en, 2012) | 1977-11-10 |
| US4102969A (en) | 1978-07-25 |
| AU1284676A (en) | 1977-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |