NO791822L - Flersjiktfilm. - Google Patents
Flersjiktfilm.Info
- Publication number
- NO791822L NO791822L NO791822A NO791822A NO791822L NO 791822 L NO791822 L NO 791822L NO 791822 A NO791822 A NO 791822A NO 791822 A NO791822 A NO 791822A NO 791822 L NO791822 L NO 791822L
- Authority
- NO
- Norway
- Prior art keywords
- approx
- copolymer
- multilayer film
- per minute
- film
- Prior art date
Links
- 239000010410 layer Substances 0.000 claims description 35
- -1 polybutylene Polymers 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 28
- 239000012792 core layer Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- 229920001748 polybutylene Polymers 0.000 claims description 16
- 229920001519 homopolymer Polymers 0.000 claims description 14
- 229920000098 polyolefin Polymers 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 9
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 9
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 4
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 3
- QLZJUIZVJLSNDD-UHFFFAOYSA-N 2-(2-methylidenebutanoyloxy)ethyl 2-methylidenebutanoate Chemical compound CCC(=C)C(=O)OCCOC(=O)C(=C)CC QLZJUIZVJLSNDD-UHFFFAOYSA-N 0.000 claims 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 89
- 229920000642 polymer Polymers 0.000 description 29
- 230000000704 physical effect Effects 0.000 description 19
- 239000004743 Polypropylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 239000002356 single layer Substances 0.000 description 5
- 239000002985 plastic film Substances 0.000 description 4
- 229920006255 plastic film Polymers 0.000 description 4
- 230000032798 delamination Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- CGPRUXZTHGTMKW-UHFFFAOYSA-N ethene;ethyl prop-2-enoate Chemical class C=C.CCOC(=O)C=C CGPRUXZTHGTMKW-UHFFFAOYSA-N 0.000 description 1
- 229920006228 ethylene acrylate copolymer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (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
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- 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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/72—Density
-
- 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
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
-
- 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
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- 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
- B32B2331/00—Polyvinylesters
- B32B2331/04—Polymers of vinyl acetate, e.g. PVA
-
- 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
- B32B2333/00—Polymers of unsaturated acids or derivatives thereof
- B32B2333/04—Polymers of esters
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
-
- 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
- Y10T428/31504—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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Materials For Medical Uses (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/919,852 US4169910A (en) | 1978-06-28 | 1978-06-28 | Multilayer film including polyolefin layers and a polybutylene layer useful for the production of bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO791822L true NO791822L (no) | 1980-01-02 |
Family
ID=25442747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO791822A NO791822L (no) | 1978-06-28 | 1979-05-31 | Flersjiktfilm. |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US4169910A (da) |
| JP (1) | JPS555891A (da) |
| AT (1) | ATA403479A (da) |
| AU (1) | AU528974B2 (da) |
| BE (1) | BE876774A (da) |
| CA (1) | CA1156812A (da) |
| CH (1) | CH640179A5 (da) |
| DE (1) | DE2921745A1 (da) |
| DK (1) | DK231679A (da) |
| FI (1) | FI69778C (da) |
| FR (1) | FR2434034A1 (da) |
| GB (1) | GB2025847B (da) |
| IE (1) | IE48575B1 (da) |
| IT (1) | IT1117797B (da) |
| MX (1) | MX151018A (da) |
| NL (1) | NL7904396A (da) |
| NO (1) | NO791822L (da) |
| NZ (1) | NZ190641A (da) |
| SE (1) | SE7904789L (da) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1178414A (en) * | 1978-02-08 | 1984-11-27 | Toyo Boseki Kabushiki Kaisha (Trading Under The Name Of Toyobo Co., Ltd.) | Packaging material having excellent seal packaging property |
| US4229241A (en) * | 1978-12-04 | 1980-10-21 | W. R. Grace & Co. | Process for making a multi layer polyolefin shrink film |
| US4456660A (en) * | 1978-12-13 | 1984-06-26 | Mobil Oil Corporation | Coextruded two-ply laminate films of low density polyethylene and blend of polybutene-1 and polyethylene or polypropylene |
| US4364981A (en) * | 1979-12-28 | 1982-12-21 | Union Carbide Corporation | Three layer film having a core layer of low pressure, low density polyethylene |
| US4316970A (en) * | 1980-08-01 | 1982-02-23 | Shell Oil Company | Blends of butene-1-ethylene copolymer and polypropylene |
| 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 |
| US4391862A (en) * | 1981-07-02 | 1983-07-05 | W. R. Grace & Co., Cryovac Division | Pasteurizable thermoplastic film and receptacle therefrom |
| US4354004A (en) * | 1981-09-28 | 1982-10-12 | Shell Oil Company | Film compositions from olefin polymer blends |
| US4488924A (en) * | 1981-12-10 | 1984-12-18 | Mobil Oil Corporation | Method of sealing laminar thermoplastic films and bags |
| JPS58160147A (ja) * | 1982-03-18 | 1983-09-22 | 三井化学株式会社 | 共押出多層フイルム |
| US4528220A (en) * | 1984-02-09 | 1985-07-09 | Shell Oil Company | Plastic bags for medical solutions and blood |
| IE56700B1 (en) * | 1984-11-30 | 1991-11-06 | Canadian Ind | Thermoplastic sacks |
| US4965108A (en) * | 1985-09-11 | 1990-10-23 | First Brands Corporation | Low temperature impact and puncture resistant thermoplastic films and bags therefrom |
| US5011719A (en) * | 1985-11-29 | 1991-04-30 | American National Can Company | Polymeric compositions and films |
| US4966795A (en) * | 1985-11-29 | 1990-10-30 | American National Can Company | Multiple layer sheet structures and package |
| US5093164A (en) * | 1985-11-29 | 1992-03-03 | Bauer Frank T | Multiple layer packaging sheet material |
| US4778697A (en) * | 1985-11-29 | 1988-10-18 | American National Can Company | Polymeric films |
| US5035851A (en) * | 1986-11-25 | 1991-07-30 | W. R. Grace & Co.-Conn. | Method of making very high barrier film |
| US4965109A (en) * | 1987-03-09 | 1990-10-23 | First Brands Corporation | Low temperature impact and puncture resistant polypropyene films layered films and bags therefrom |
| DE69226893T2 (de) * | 1991-03-20 | 1999-01-28 | Kuraray Co., Ltd., Kurashiki, Okayama | Mehrschichten-Verbundfilm und seine Herstellung |
| US6524720B1 (en) | 1992-09-18 | 2003-02-25 | Cryovac, Inc. | Moisture barrier film |
| CA2106258C (en) * | 1992-09-18 | 2003-11-04 | Gautam P. Shah | Moisture barrier film |
| US7316833B1 (en) | 1993-06-24 | 2008-01-08 | Penchiney Emballage Flexible Europe | Multi-layer thermoplastic films and packages made therefrom |
| US6296936B1 (en) | 1996-09-04 | 2001-10-02 | Kimberly-Clark Worldwide, Inc. | Coform material having improved fluid handling and method for producing |
| US6204208B1 (en) | 1996-09-04 | 2001-03-20 | Kimberly-Clark Worldwide, Inc. | Method and composition for treating substrates for wettability and skin wellness |
| US6017832A (en) * | 1996-09-04 | 2000-01-25 | Kimberly-Clark Worldwide, Inc. | Method and composition for treating substrates for wettability |
| US6072005A (en) * | 1997-10-31 | 2000-06-06 | Kimberly-Clark Worldwide, Inc. | Breathable films and process for producing them |
| DE19806475A1 (de) * | 1998-02-17 | 1999-08-19 | Wolff Walsrode Ag | Mehrlagige Siegelschicht und damit hergestellte hermetisch versiegelbarer Packstoff |
| US6869666B2 (en) | 2001-05-02 | 2005-03-22 | 3M Innovative Properties Company | Controlled-puncture films |
| US20060285783A1 (en) * | 2006-06-01 | 2006-12-21 | Burnett John A Jr | Fluorescent buld disposal bag |
| JP6315798B2 (ja) * | 2014-06-27 | 2018-04-25 | サン・トックス株式会社 | 多層シーラントフィルム |
| JPWO2021192536A1 (da) | 2020-03-26 | 2021-09-30 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE561516A (da) * | 1956-10-11 | |||
| US3524795A (en) * | 1965-07-01 | 1970-08-18 | Dow Chemical Co | Packaging film |
| US3891008A (en) * | 1973-12-26 | 1975-06-24 | Grace W R & Co | Multi-layer thermoplastic film and method of making same |
| US4046945A (en) * | 1974-01-18 | 1977-09-06 | Chemische Werke Huls Aktiengesellschaft | Process for the bonding of films and molded components |
| US3997383A (en) * | 1975-03-10 | 1976-12-14 | W. R. Grace & Co. | Cross-linked amide/olefin polymeric laminates |
| GB1497577A (en) * | 1975-06-11 | 1978-01-12 | Ici Ltd | Film-forming olefin polymer compositions |
-
1978
- 1978-06-28 US US05/919,852 patent/US4169910A/en not_active Expired - Lifetime
-
1979
- 1979-05-29 DE DE19792921745 patent/DE2921745A1/de not_active Withdrawn
- 1979-05-29 CA CA000328571A patent/CA1156812A/en not_active Expired
- 1979-05-31 NO NO791822A patent/NO791822L/no unknown
- 1979-05-31 SE SE7904789A patent/SE7904789L/ not_active Application Discontinuation
- 1979-06-01 DK DK231679A patent/DK231679A/da not_active Application Discontinuation
- 1979-06-04 IT IT4929479A patent/IT1117797B/it active
- 1979-06-05 BE BE0/195573A patent/BE876774A/xx not_active IP Right Cessation
- 1979-06-05 NL NL7904396A patent/NL7904396A/nl not_active Application Discontinuation
- 1979-06-05 CH CH523579A patent/CH640179A5/fr not_active IP Right Cessation
- 1979-06-05 JP JP7050779A patent/JPS555891A/ja active Pending
- 1979-06-05 AT AT403479A patent/ATA403479A/de not_active IP Right Cessation
- 1979-06-05 FR FR7914292A patent/FR2434034A1/fr active Granted
- 1979-06-05 NZ NZ19064179A patent/NZ190641A/xx unknown
- 1979-06-05 FI FI791794A patent/FI69778C/fi not_active IP Right Cessation
- 1979-06-05 MX MX177941A patent/MX151018A/es unknown
- 1979-06-05 GB GB7919525A patent/GB2025847B/en not_active Expired
- 1979-06-07 AU AU47858/79A patent/AU528974B2/en not_active Ceased
- 1979-08-08 IE IE1102/79A patent/IE48575B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK231679A (da) | 1979-12-29 |
| SE7904789L (sv) | 1979-12-29 |
| US4169910A (en) | 1979-10-02 |
| FR2434034B1 (da) | 1984-04-06 |
| CH640179A5 (fr) | 1983-12-30 |
| IE791102L (en) | 1979-12-28 |
| GB2025847B (en) | 1983-03-30 |
| MX151018A (es) | 1984-09-07 |
| JPS555891A (en) | 1980-01-17 |
| NL7904396A (nl) | 1980-01-03 |
| DE2921745A1 (de) | 1980-01-03 |
| BE876774A (fr) | 1979-12-05 |
| IE48575B1 (en) | 1985-03-06 |
| IT7949294A0 (it) | 1979-06-04 |
| FI791794A (fi) | 1979-12-29 |
| ATA403479A (de) | 1986-02-15 |
| GB2025847A (en) | 1980-01-30 |
| FI69778B (fi) | 1985-12-31 |
| NZ190641A (en) | 1981-03-16 |
| AU528974B2 (en) | 1983-05-19 |
| FI69778C (fi) | 1986-05-26 |
| AU4785879A (en) | 1980-01-03 |
| FR2434034A1 (fr) | 1980-03-21 |
| IT1117797B (it) | 1986-02-24 |
| CA1156812A (en) | 1983-11-15 |
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