NO773391L - Filtermateriale. - Google Patents
Filtermateriale.Info
- Publication number
- NO773391L NO773391L NO773391A NO773391A NO773391L NO 773391 L NO773391 L NO 773391L NO 773391 A NO773391 A NO 773391A NO 773391 A NO773391 A NO 773391A NO 773391 L NO773391 L NO 773391L
- Authority
- NO
- Norway
- Prior art keywords
- cellulose ester
- cellulose
- fibers
- sheet
- stated
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 94
- 229920002678 cellulose Polymers 0.000 claims abstract description 74
- 239000000779 smoke Substances 0.000 claims abstract description 35
- 241000208125 Nicotiana Species 0.000 claims abstract description 13
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 124
- 229920002301 cellulose acetate Polymers 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 238000004519 manufacturing process Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- 239000002904 solvent Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 16
- 235000019504 cigarettes Nutrition 0.000 claims description 14
- 239000011094 fiberboard Substances 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002657 fibrous material Substances 0.000 claims description 7
- 239000003960 organic solvent Substances 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229920006217 cellulose acetate butyrate Polymers 0.000 claims description 5
- 239000002244 precipitate Substances 0.000 claims description 5
- 229920002284 Cellulose triacetate Polymers 0.000 claims description 4
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 3
- 229920008347 Cellulose acetate propionate Polymers 0.000 claims description 2
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 claims description 2
- ZMZINYUKVRMNTG-UHFFFAOYSA-N acetic acid;formic acid Chemical compound OC=O.CC(O)=O ZMZINYUKVRMNTG-UHFFFAOYSA-N 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 229920001727 cellulose butyrate Polymers 0.000 claims description 2
- 229920006218 cellulose propionate Polymers 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000001112 coagulating effect Effects 0.000 claims 2
- 239000008240 homogeneous mixture Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 22
- 239000000123 paper Substances 0.000 description 21
- 239000000243 solution Substances 0.000 description 20
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 17
- 238000001914 filtration Methods 0.000 description 11
- 238000001556 precipitation Methods 0.000 description 11
- 229920001131 Pulp (paper) Polymers 0.000 description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 4
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 230000036961 partial effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 235000019506 cigar Nutrition 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000001087 glyceryl triacetate Substances 0.000 description 2
- 235000013773 glyceryl triacetate Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229960002622 triacetin Drugs 0.000 description 2
- OVOUKWFJRHALDD-UHFFFAOYSA-N 2-[2-(2-acetyloxyethoxy)ethoxy]ethyl acetate Chemical compound CC(=O)OCCOCCOCCOC(C)=O OVOUKWFJRHALDD-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920006221 acetate fiber Polymers 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229940125753 fibrate Drugs 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
-
- 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
- D01D5/06—Wet spinning methods
-
- 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
- D01D5/40—Formation of filaments, threads, or the like by applying a shearing force to a dispersion or solution of filament formable polymers, e.g. by stirring
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/06—Cellulose esters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73003976A | 1976-10-06 | 1976-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO773391L true NO773391L (no) | 1978-04-07 |
Family
ID=24933659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO773391A NO773391L (no) | 1976-10-06 | 1977-10-05 | Filtermateriale. |
Country Status (26)
| Country | Link |
|---|---|
| JP (1) | JPS5345468A (pt) |
| AT (1) | AT370293B (pt) |
| AU (1) | AU514462B2 (pt) |
| BE (1) | BE859459A (pt) |
| BG (1) | BG28240A3 (pt) |
| BR (1) | BR7706686A (pt) |
| CA (1) | CA1076912A (pt) |
| DE (1) | DE2744796A1 (pt) |
| DK (1) | DK441177A (pt) |
| ES (1) | ES467483A1 (pt) |
| FI (1) | FI772956A (pt) |
| FR (4) | FR2367133A1 (pt) |
| GB (1) | GB1562134A (pt) |
| GR (1) | GR66108B (pt) |
| IL (1) | IL53062A (pt) |
| IN (1) | IN148341B (pt) |
| IT (1) | IT1087755B (pt) |
| LU (1) | LU78254A1 (pt) |
| NL (1) | NL7710795A (pt) |
| NO (1) | NO773391L (pt) |
| NZ (1) | NZ185357A (pt) |
| PT (1) | PT67104B (pt) |
| SE (1) | SE7711170L (pt) |
| SU (1) | SU860678A3 (pt) |
| TR (1) | TR20555A (pt) |
| ZA (1) | ZA775993B (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57147413A (en) * | 1981-03-10 | 1982-09-11 | Asahi Chem Ind Co Ltd | Filter medium for high-performance air filter and production thereof |
| TW241198B (en) * | 1993-09-06 | 1995-02-21 | Daicel Chem | A tobacco filter material and a method of producing the same |
| CN1219797C (zh) * | 1994-09-22 | 2005-09-21 | 大世吕化学工业株式会社 | 纤维素衍生物 |
| JP3420359B2 (ja) * | 1994-10-21 | 2003-06-23 | ダイセル化学工業株式会社 | たばこ煙用フィルター素材、繊維状セルロースエステル及びその製造方法 |
| DE69520816T2 (de) * | 1994-10-31 | 2001-09-13 | Daicel Chem | Tabakrauchfiltermaterial und Tabakrauchfilter hergestellt aus diesem Material |
| JP3606950B2 (ja) * | 1995-05-31 | 2005-01-05 | ダイセル化学工業株式会社 | たばこフィルターおよびその製造方法 |
| JP3677332B2 (ja) * | 1995-10-20 | 2005-07-27 | ダイセル化学工業株式会社 | たばこフィルター用素材およびそれを用いたたばこフィルター |
| DE19753195A1 (de) * | 1997-11-21 | 1999-05-27 | Reemtsma H F & Ph | Biologisch abbaubarer Filter für Cigaretten |
| DE19951062C2 (de) * | 1999-10-22 | 2002-04-04 | Rhodia Acetow Gmbh | Hochleistungs-Zigarettenfilter |
| US20060021302A1 (en) * | 2004-07-30 | 2006-02-02 | Bernard Bobby L | Anti-microbial air filter |
-
1977
- 1977-09-30 AU AU29290/77A patent/AU514462B2/en not_active Expired
- 1977-09-30 GB GB40722/77A patent/GB1562134A/en not_active Expired
- 1977-10-03 NL NL7710795A patent/NL7710795A/xx not_active Application Discontinuation
- 1977-10-03 IT IT28219/77A patent/IT1087755B/it active
- 1977-10-03 PT PT67104A patent/PT67104B/pt unknown
- 1977-10-04 TR TR20555A patent/TR20555A/xx unknown
- 1977-10-04 GR GR54495A patent/GR66108B/el unknown
- 1977-10-05 JP JP11911477A patent/JPS5345468A/ja active Pending
- 1977-10-05 CA CA288,203A patent/CA1076912A/en not_active Expired
- 1977-10-05 NO NO773391A patent/NO773391L/no unknown
- 1977-10-05 LU LU78254A patent/LU78254A1/xx unknown
- 1977-10-05 DK DK441177A patent/DK441177A/da unknown
- 1977-10-05 DE DE19772744796 patent/DE2744796A1/de not_active Withdrawn
- 1977-10-05 BG BG7737507A patent/BG28240A3/xx unknown
- 1977-10-05 NZ NZ185357A patent/NZ185357A/xx unknown
- 1977-10-05 FR FR7730010A patent/FR2367133A1/fr active Granted
- 1977-10-05 SE SE7711170A patent/SE7711170L/xx unknown
- 1977-10-06 ZA ZA00775993A patent/ZA775993B/xx unknown
- 1977-10-06 AT AT0713377A patent/AT370293B/de not_active IP Right Cessation
- 1977-10-06 SU SU772534605A patent/SU860678A3/ru active
- 1977-10-06 IL IL53062A patent/IL53062A/xx unknown
- 1977-10-06 FI FI772956A patent/FI772956A/fi not_active Application Discontinuation
- 1977-10-06 BR BR7706686A patent/BR7706686A/pt unknown
- 1977-10-06 BE BE181523A patent/BE859459A/xx unknown
- 1977-11-02 IN IN1574/CAL/77A patent/IN148341B/en unknown
-
1978
- 1978-03-02 ES ES0467483A patent/ES467483A1/es not_active Expired
- 1978-04-25 FR FR7812163A patent/FR2381853A1/fr active Granted
- 1978-04-25 FR FR7812164A patent/FR2381480A1/fr not_active Withdrawn
- 1978-04-25 FR FR7812165A patent/FR2381840A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK441177A (da) | 1978-04-07 |
| SE7711170L (sv) | 1978-04-07 |
| NL7710795A (nl) | 1978-04-10 |
| FR2381853B1 (pt) | 1982-04-02 |
| FR2381480A1 (fr) | 1978-09-22 |
| IN148341B (pt) | 1981-01-24 |
| DE2744796A1 (de) | 1978-04-13 |
| FR2381840A1 (fr) | 1978-09-22 |
| SU860678A3 (ru) | 1981-08-30 |
| GB1562134A (en) | 1980-03-05 |
| AU514462B2 (en) | 1981-02-12 |
| BR7706686A (pt) | 1979-05-02 |
| FR2381853A1 (fr) | 1978-09-22 |
| BE859459A (fr) | 1978-04-06 |
| JPS5345468A (en) | 1978-04-24 |
| FR2367133B1 (pt) | 1982-03-26 |
| ATA713377A (de) | 1982-08-15 |
| ES467483A1 (es) | 1978-10-16 |
| GR66108B (pt) | 1981-01-16 |
| NZ185357A (en) | 1980-05-08 |
| PT67104A (en) | 1977-11-01 |
| IL53062A0 (en) | 1977-12-30 |
| TR20555A (tr) | 1981-11-05 |
| IT1087755B (it) | 1985-06-04 |
| AT370293B (de) | 1983-03-10 |
| BG28240A3 (en) | 1980-03-25 |
| FI772956A (fi) | 1978-04-07 |
| IL53062A (en) | 1980-09-16 |
| CA1076912A (en) | 1980-05-06 |
| FR2367133A1 (fr) | 1978-05-05 |
| ZA775993B (en) | 1979-05-30 |
| PT67104B (en) | 1979-03-13 |
| AU2929077A (en) | 1979-04-05 |
| LU78254A1 (pt) | 1978-01-26 |
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