ES481682A1 - Procedimiento de fabricacion de laminas plasticas flexibles de capas multiples, para bolsas tratadas en autoclave. - Google Patents
Procedimiento de fabricacion de laminas plasticas flexibles de capas multiples, para bolsas tratadas en autoclave.Info
- Publication number
- ES481682A1 ES481682A1 ES481682A ES481682A ES481682A1 ES 481682 A1 ES481682 A1 ES 481682A1 ES 481682 A ES481682 A ES 481682A ES 481682 A ES481682 A ES 481682A ES 481682 A1 ES481682 A1 ES 481682A1
- Authority
- ES
- Spain
- Prior art keywords
- water vapor
- strength
- resistance
- vapor transmission
- plastic sheeting
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D153/00—Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
- A61J1/10—Bag-type containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/42—Alternating layers, e.g. ABAB(C), AABBAABB(C)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/02—Open containers
- B32B2439/06—Bags, sacks, sachets
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
-
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
-
- 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
-
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Procedimiento de fabricación de láminas plásticas flexibles de capas múltiples, para bolsas tratables en autoclave, caracterizado en que se coextrusionan en posición alternante por lo menos una primera capa (a) y una segunda capa (b), consistiendo la capa "a" esencialmente en el 30 % al 90 % en paso de un copolímero en bloques dotado de características similares a las de la goma o caucho, que posee bloques olefínicos de esta similitud y bloques de un poliestireno y del 10% al 70% en peso de un poliolefina derivada principalmente de por lo menos uno de los compuestos propileno, etileno y 4-metilpentano-1, teniendo dicha poliolefina una temperatura de reblandecimiento Vicat superior a 120ºC; y consistiendo esencialmente la capa "b" por lo menos de una poliolefina derivada principalmente de por lo menos uno de los compuestos propileno, etileno y 4-metilpantano-1, y que es de características semicristalinas, para mostrar una baja permeabilidad al vapor de agua.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/917,122 US4210686A (en) | 1978-06-19 | 1978-06-19 | Multi-layered plastic sheeting having high clarity, strength, and resistance to water vapor transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
ES481682A1 true ES481682A1 (es) | 1980-02-16 |
Family
ID=25438369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES481682A Expired ES481682A1 (es) | 1978-06-19 | 1979-06-19 | Procedimiento de fabricacion de laminas plasticas flexibles de capas multiples, para bolsas tratadas en autoclave. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4210686A (es) |
JP (1) | JPS553994A (es) |
AU (1) | AU535149B2 (es) |
BE (1) | BE877054A (es) |
CA (1) | CA1126637A (es) |
DE (1) | DE2918507A1 (es) |
ES (1) | ES481682A1 (es) |
GB (1) | GB2023497B (es) |
IL (1) | IL57349A (es) |
NO (1) | NO792012L (es) |
SE (1) | SE446704B (es) |
ZA (1) | ZA792451B (es) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4322465A (en) * | 1980-08-08 | 1982-03-30 | Baxter Travenol Laboratories, Inc. | Clear, autoclavable, sealed container having good water vapor barrier properties and flex crack resistance |
US4479989A (en) * | 1982-12-02 | 1984-10-30 | Cutter Laboratories, Inc. | Flexible container material |
DE3333283A1 (de) * | 1983-09-15 | 1985-04-18 | Gerhard 3429 Krebeck Lorenz | Aufbereitungssystem fuer infusionsloesungen |
FR2552330B1 (fr) * | 1983-09-23 | 1986-07-11 | Showa Denko Kk | Sac medical |
CA1264517A (en) * | 1984-06-15 | 1990-01-23 | Donald R. Hazelton | Clear barrier composite containing polyisobutylene/polyolefin alloy components |
US4686125A (en) * | 1984-09-28 | 1987-08-11 | Baxter Travenol Laboratories, Inc. | Film laminate for sterile flexible containers |
JPS62500777A (ja) * | 1984-09-28 | 1987-04-02 | バクスター、インターナショナル、インコーポレイテッド | 水蒸気滅菌し得る可撓性容器のためのポリオレフィンフィルム |
US4654240A (en) * | 1984-09-28 | 1987-03-31 | Baxter Travenol Laboratories, Inc. | Laminate film for flexible containers |
US4692361A (en) * | 1984-09-28 | 1987-09-08 | Baxter Travenol Laboratories, Inc. | Film laminate with gas barrier for sterile flexible containers |
US4616052A (en) * | 1985-07-05 | 1986-10-07 | Becton, Dickinson And Company | High temperature creep resistant thermoplastic elastomer compositions |
FI73386C (fi) * | 1985-09-25 | 1987-10-09 | Wihuri Oy | En stark aongsteriliserbar maongskiktsfolie och daerav framstaellda foerpackningar foer fysiologiska loesningar. |
US4966795A (en) * | 1985-11-29 | 1990-10-30 | American National Can Company | Multiple layer sheet structures and package |
US5011719A (en) * | 1985-11-29 | 1991-04-30 | American National Can Company | Polymeric compositions and films |
US5093164A (en) * | 1985-11-29 | 1992-03-03 | Bauer Frank T | Multiple layer packaging sheet material |
US4910085A (en) * | 1985-11-29 | 1990-03-20 | American National Can Company | Multiple layer packaging films and packages formed thereof |
US4892911A (en) * | 1985-11-29 | 1990-01-09 | American National Can Company | Films using blends of polypropylene and polyisobutylene |
US5073599A (en) * | 1985-11-29 | 1991-12-17 | American National Can Company | Films using blends of polypropylene and polyisobutylene |
US5071686A (en) * | 1985-11-29 | 1991-12-10 | Genske Roger P | Films of polypropylene blends and polyethylene blends and articles made therewith |
US4778697A (en) * | 1985-11-29 | 1988-10-18 | American National Can Company | Polymeric films |
US4769261A (en) * | 1987-01-08 | 1988-09-06 | Exxon Chemical Patents Inc. | Retort pouch and coextruded film therefor |
US4929479A (en) * | 1987-08-10 | 1990-05-29 | Showa Denko Kabushiki Kaisha | Medical bag |
JPH0684489B2 (ja) * | 1987-08-11 | 1994-10-26 | 三井石油化学工業株式会社 | ホットメルト型接着剤組成物 |
US4939009A (en) * | 1988-03-17 | 1990-07-03 | Eastman Kodak Company | Multilayered sheets having excellent adhesion |
US5080643A (en) * | 1988-03-21 | 1992-01-14 | Dow Brands Inc. | Method of making a stand-up plastic bag |
US4954124A (en) * | 1988-03-21 | 1990-09-04 | The Dow Chemical Company | Stand-up plastic bag and method of making same |
JP2592500B2 (ja) * | 1988-06-01 | 1997-03-19 | 三井石油化学工業株式会社 | 積層フィルム |
JP2571271B2 (ja) * | 1988-10-17 | 1997-01-16 | 三井石油化学工業株式会社 | 積層体 |
US5176251A (en) * | 1991-05-06 | 1993-01-05 | W. R. Grace & Co.-Conn. | Controlling moisture loss or gain in plastic packages |
TW294632B (es) * | 1993-02-05 | 1997-01-01 | Otsuka Pharma Factory Inc | |
US5654364A (en) * | 1993-03-23 | 1997-08-05 | Regents Of The University Of Minnesota | Miscible blend of polyolefin and polyolefin block copolymer |
US5571864A (en) * | 1993-03-23 | 1996-11-05 | Regents Of The University Of Minnesota | Miscible polyolefin blends with modifying polyolefin having matching segment lengths |
JP2997831B2 (ja) * | 1993-09-06 | 2000-01-11 | グンゼ株式会社 | 積層体 |
DE4447626C5 (de) * | 1994-03-29 | 2007-01-25 | Fresenius Ag | Medizinischer Mehrkammerbeutel |
EP0699519A3 (en) | 1994-08-30 | 1998-04-22 | Shell Internationale Researchmaatschappij B.V. | Co moulded multi-layer polymer blend system, and shaped articles derived therefrom |
US5935847A (en) * | 1994-10-28 | 1999-08-10 | Baxter International Inc. | Multilayer gas-permeable container for the culture of adherent and non-adherent cells |
US5683768A (en) * | 1994-12-21 | 1997-11-04 | Baxter International Inc. | Plastic formulations for platelet storage containers and the like |
DE19515254C2 (de) * | 1995-04-26 | 1998-06-04 | Fresenius Ag | PVC-freie Mehrschichtfolie, Verfahren zur Herstellung derselben und deren Verwendung |
EP0755778A1 (de) | 1995-07-28 | 1997-01-29 | Wolff Walsrode Ag | Sterilisationsfeste Sperrschichtfolie auf Basis von Polyamiden und Polyolefinen |
US5743942A (en) * | 1996-09-19 | 1998-04-28 | United Catalysts Inc. | Desiccant container |
WO1999054133A2 (en) * | 1998-04-20 | 1999-10-28 | Cryovac Inc. | Multilayer packaging film and bag made therefrom |
US6652933B2 (en) * | 2000-03-16 | 2003-11-25 | Alpine Packaging Group, Inc. | Flexible insulated pouch |
JP4916609B2 (ja) * | 2000-06-28 | 2012-04-18 | 藤森工業株式会社 | 医療用液体容器用プラスチックフィルム |
US6869666B2 (en) | 2001-05-02 | 2005-03-22 | 3M Innovative Properties Company | Controlled-puncture films |
US6723399B2 (en) | 2002-06-12 | 2004-04-20 | Ferro Corporation | Medical multilayer film structure |
BR0300521A (pt) * | 2003-03-13 | 2005-03-22 | Halex Star Ind Farmaceutica Lt | Processo de obtenção de solução isotÈnica injetável estável de gatifloxacina pré-diluìda em glicose, solução injetável estável de gatifloxacina pré-diluìda em glicose, processo de acondicionamento em sistema fechado da solução injetável obtida, uso de sistema fechado para acondicionamento de solução injetável de gatifloxacina, uso da solução injetável a base de gatifloxacina pré-diluìda em glicose obtida e método de administração |
RU2392004C2 (ru) | 2003-09-22 | 2010-06-20 | Бакстер Интернэшнл Инк. | Стерилизация под высоким давлением для заключительной стерилизации фармацевтических препаратов и медицинских изделий |
CA2585971A1 (en) * | 2004-11-01 | 2006-05-11 | Asahi Kasei Chemicals Corporation | Easy-to-open bag |
US7473473B2 (en) * | 2004-12-01 | 2009-01-06 | Cryovac, Inc. | Tear resistant shrink film |
US7569281B2 (en) * | 2005-07-25 | 2009-08-04 | Kraton Polymers U.S. Llc | Flexible packaging laminate films including a block copolymer layer |
EP2191897B1 (en) | 2007-06-21 | 2014-02-26 | Gen-Probe Incorporated | Instrument and receptacles for performing processes |
KR102160013B1 (ko) | 2014-04-03 | 2020-09-25 | 백스터 인터내셔널 인코포레이티드 | 주사액용 주머니 및 주사용 제제 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3459832A (en) * | 1965-09-24 | 1969-08-05 | Monsanto Co | Crystalline polystyrene having activity as a polymerization catalyst |
US3496061A (en) * | 1966-01-28 | 1970-02-17 | Continental Can Co | Flexible packages containing nonfusible high peel strength heat seals |
US3480696A (en) * | 1966-11-16 | 1969-11-25 | Shell Oil Co | Alpha olefin block copolymers and their preparation |
US3589976A (en) * | 1967-03-24 | 1971-06-29 | Hercules Inc | Composite films of polyolefins and polystyrene |
US3904470A (en) * | 1973-05-02 | 1975-09-09 | Mitsui Petrochemical Ind | Method for bonding rubber to plastics |
US4140162A (en) * | 1977-07-28 | 1979-02-20 | Baxter Travenol Lab | Clear, autoclavable plastic formulation free of liquid plasticizers |
-
1978
- 1978-06-19 US US05/917,122 patent/US4210686A/en not_active Expired - Lifetime
-
1979
- 1979-04-24 CA CA326,223A patent/CA1126637A/en not_active Expired
- 1979-05-08 DE DE19792918507 patent/DE2918507A1/de active Granted
- 1979-05-21 ZA ZA792451A patent/ZA792451B/xx unknown
- 1979-05-21 IL IL5734979A patent/IL57349A/xx unknown
- 1979-05-22 JP JP6374979A patent/JPS553994A/ja active Granted
- 1979-05-23 AU AU47318/79A patent/AU535149B2/en not_active Expired - Fee Related
- 1979-06-14 GB GB7920765A patent/GB2023497B/en not_active Expired
- 1979-06-18 NO NO792012A patent/NO792012L/no unknown
- 1979-06-18 BE BE0/195801A patent/BE877054A/xx not_active IP Right Cessation
- 1979-06-18 SE SE7905351A patent/SE446704B/sv unknown
- 1979-06-19 ES ES481682A patent/ES481682A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2023497B (en) | 1982-08-04 |
BE877054A (fr) | 1979-10-15 |
NO792012L (no) | 1979-12-20 |
AU4731879A (en) | 1980-01-03 |
US4210686A (en) | 1980-07-01 |
CA1126637A (en) | 1982-06-29 |
DE2918507C2 (es) | 1989-11-02 |
IL57349A0 (en) | 1979-09-30 |
GB2023497A (en) | 1980-01-03 |
JPS6350197B2 (es) | 1988-10-07 |
JPS553994A (en) | 1980-01-12 |
SE446704B (sv) | 1986-10-06 |
DE2918507A1 (de) | 1980-01-03 |
SE7905351L (sv) | 1979-12-20 |
AU535149B2 (en) | 1984-03-08 |
ZA792451B (en) | 1980-06-25 |
IL57349A (en) | 1983-05-15 |
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