SE426951B - Forfarande for framstellning av belagda polyolefinfilmer samt en belagd polyolefinfilm enligt framstellningsforfarandet - Google Patents
Forfarande for framstellning av belagda polyolefinfilmer samt en belagd polyolefinfilm enligt framstellningsforfarandetInfo
- Publication number
- SE426951B SE426951B SE7810924A SE7810924A SE426951B SE 426951 B SE426951 B SE 426951B SE 7810924 A SE7810924 A SE 7810924A SE 7810924 A SE7810924 A SE 7810924A SE 426951 B SE426951 B SE 426951B
- Authority
- SE
- Sweden
- Prior art keywords
- layer
- film
- coating
- mixture
- coated
- Prior art date
Links
- 229920000098 polyolefin Polymers 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 18
- 238000000576 coating method Methods 0.000 claims description 32
- 238000003466 welding Methods 0.000 claims description 30
- 239000011248 coating agent Substances 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 22
- -1 amine compound Chemical class 0.000 claims description 21
- 229920001155 polypropylene Polymers 0.000 claims description 20
- 229920001577 copolymer Polymers 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 229920002873 Polyethylenimine Polymers 0.000 claims description 10
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 9
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 9
- 229920002521 macromolecule Polymers 0.000 claims description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 8
- 229920002554 vinyl polymer Polymers 0.000 claims description 8
- 229920001959 vinylidene polymer Polymers 0.000 claims description 8
- 239000004200 microcrystalline wax Substances 0.000 claims description 6
- 235000019808 microcrystalline wax Nutrition 0.000 claims description 6
- 239000004203 carnauba wax Substances 0.000 claims description 5
- 235000013869 carnauba wax Nutrition 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000002989 phenols Chemical class 0.000 claims description 2
- 229920000333 poly(propyleneimine) Polymers 0.000 claims description 2
- 239000001993 wax Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims 14
- 229940114937 microcrystalline wax Drugs 0.000 claims 4
- 239000011247 coating layer Substances 0.000 claims 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 claims 1
- 239000002216 antistatic agent Substances 0.000 claims 1
- DHZSIQDUYCWNSB-UHFFFAOYSA-N chloroethene;1,1-dichloroethene Chemical compound ClC=C.ClC(Cl)=C DHZSIQDUYCWNSB-UHFFFAOYSA-N 0.000 claims 1
- 239000000975 dye Substances 0.000 claims 1
- 239000000314 lubricant Substances 0.000 claims 1
- 239000004014 plasticizer Substances 0.000 claims 1
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000010408 film Substances 0.000 description 56
- 239000000243 solution Substances 0.000 description 20
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 18
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 14
- 238000003892 spreading Methods 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 8
- 229940106691 bisphenol a Drugs 0.000 description 7
- 238000006068 polycondensation reaction Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 208000002079 spinocerebellar ataxia with epilepsy Diseases 0.000 description 6
- 229920000298 Cellophane Polymers 0.000 description 4
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007127 saponification reaction Methods 0.000 description 3
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000623377 Terminalia elliptica Species 0.000 description 1
- WJGAPUXHSQQWQF-UHFFFAOYSA-N acetic acid;hydrochloride Chemical compound Cl.CC(O)=O WJGAPUXHSQQWQF-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000707 stereoselective effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/046—Forming abrasion-resistant coatings; Forming surface-hardening coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/048—Forming gas barrier coatings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- 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
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/91—Product with molecular orientation
-
- 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]
- Y10T428/31511—Of epoxy ether
-
- 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]
- Y10T428/31801—Of wax or waxy material
-
- 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
- Y10T428/31935—Ester, halide or nitrile of addition polymer
-
- 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
- Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Adhesive Tapes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT28896/77A IT1088022B (it) | 1977-10-24 | 1977-10-24 | Pellicole poliolefiniche revestite a bassa adesione alle barre saldanti |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7810924L SE7810924L (sv) | 1979-04-25 |
| SE426951B true SE426951B (sv) | 1983-02-21 |
Family
ID=11224404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7810924A SE426951B (sv) | 1977-10-24 | 1978-10-19 | Forfarande for framstellning av belagda polyolefinfilmer samt en belagd polyolefinfilm enligt framstellningsforfarandet |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4268578A (de) |
| JP (1) | JPS5488980A (de) |
| AT (1) | AT370754B (de) |
| BE (1) | BE871446A (de) |
| CA (1) | CA1119483A (de) |
| CH (1) | CH637880A5 (de) |
| DE (1) | DE2846000A1 (de) |
| DK (1) | DK466378A (de) |
| ES (1) | ES474414A0 (de) |
| FR (1) | FR2406511A1 (de) |
| GB (1) | GB2006646B (de) |
| IT (1) | IT1088022B (de) |
| NL (1) | NL7810493A (de) |
| NO (1) | NO783542L (de) |
| SE (1) | SE426951B (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1151743B (it) * | 1982-04-26 | 1986-12-24 | Moplefan Spa | Pellicole poliolefiniche rivestite a bassa adesione alle barre |
| JPS60186538A (ja) * | 1984-03-07 | 1985-09-24 | Dai Ichi Kogyo Seiyaku Co Ltd | ポリオレフイン用プライマ− |
| US4729885A (en) * | 1986-02-11 | 1988-03-08 | Phillips Petroleum Co. | High mixing reactor process |
| DE3720217A1 (de) * | 1987-06-17 | 1988-12-29 | Metallgesellschaft Ag | Verfahren zur erzeugung elektrisch isolierender ueberzuege auf metalloberflaechen |
| US4996094A (en) * | 1988-09-26 | 1991-02-26 | Mobil Oil Corporation | One-sided cling/one-sided slip stretch wrap films |
| JPH0725155B2 (ja) * | 1988-12-06 | 1995-03-22 | 本州製紙株式会社 | 複合２軸延伸ポリプロピレン系樹脂フィルム |
| US5378414A (en) * | 1993-07-29 | 1995-01-03 | Recot, Inc. | Method of forming packaging compositions |
| US7175903B1 (en) | 2000-11-17 | 2007-02-13 | Pliant Corporation | Heat sealable polyvinyl chloride films |
| CN116512585A (zh) * | 2023-05-19 | 2023-08-01 | 苏州华源控股股份有限公司 | 一种焊缝覆膜机构 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL254458A (de) * | 1959-09-03 | 1900-01-01 | ||
| GB1061590A (en) * | 1963-10-22 | 1967-03-15 | Thiokol Chemical Corp | Polyepoxide/copolymer cellulose base coating composition and process |
| NL143958B (nl) * | 1964-03-16 | 1974-11-15 | Montedison Spa | Werkwijze om een heet lasbare foelie te vervaardigen. |
| US3442687A (en) * | 1965-12-08 | 1969-05-06 | Nat Distillers Chem Corp | Vapor-impermeable coated polyolefin substrates |
| FR1514891A (fr) * | 1966-03-22 | 1968-02-23 | Montedison Spa | Pellicules de polyoléfine enduites et procédé pour leur préparation |
| NL153910B (nl) * | 1966-03-22 | 1977-07-15 | Montedison Spa | Werkwijze om een lasbare foelie te vervaardigen en aldus vervaardigde lasbare foelie. |
| US3753769A (en) * | 1966-06-29 | 1973-08-21 | Mobil Oil Corp | Coating composition and plastic articles coated therewith |
| US3741253A (en) * | 1971-03-30 | 1973-06-26 | Grace W R & Co | Laminates of ethylene vinyl acetate polymers and polymers of vinylidene chloride |
| US4105118A (en) * | 1976-06-10 | 1978-08-08 | Eastman Kodak Company | Laminates useful as packaging materials and container having alkaline fluid means |
-
1977
- 1977-10-24 IT IT28896/77A patent/IT1088022B/it active
-
1978
- 1978-10-19 NL NL7810493A patent/NL7810493A/xx not_active Application Discontinuation
- 1978-10-19 DK DK466378A patent/DK466378A/da not_active Application Discontinuation
- 1978-10-19 SE SE7810924A patent/SE426951B/sv unknown
- 1978-10-19 NO NO783542A patent/NO783542L/no unknown
- 1978-10-20 CH CH1087378A patent/CH637880A5/it not_active IP Right Cessation
- 1978-10-20 CA CA000313879A patent/CA1119483A/en not_active Expired
- 1978-10-20 GB GB7841426A patent/GB2006646B/en not_active Expired
- 1978-10-20 AT AT0755878A patent/AT370754B/de not_active IP Right Cessation
- 1978-10-23 ES ES474414A patent/ES474414A0/es active Pending
- 1978-10-23 US US05/953,876 patent/US4268578A/en not_active Expired - Lifetime
- 1978-10-23 BE BE191270A patent/BE871446A/xx not_active IP Right Cessation
- 1978-10-23 DE DE19782846000 patent/DE2846000A1/de not_active Withdrawn
- 1978-10-23 FR FR7830085A patent/FR2406511A1/fr active Granted
- 1978-10-24 JP JP13092878A patent/JPS5488980A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK466378A (da) | 1979-04-25 |
| NL7810493A (nl) | 1979-04-26 |
| IT1088022B (it) | 1985-06-04 |
| JPS5488980A (en) | 1979-07-14 |
| ES474414A0 (es) | 1979-11-01 |
| FR2406511A1 (fr) | 1979-05-18 |
| CA1119483A (en) | 1982-03-09 |
| AT370754B (de) | 1983-05-10 |
| BE871446A (fr) | 1979-04-23 |
| CH637880A5 (it) | 1983-08-31 |
| SE7810924L (sv) | 1979-04-25 |
| US4268578A (en) | 1981-05-19 |
| GB2006646A (en) | 1979-05-10 |
| FR2406511B1 (de) | 1982-03-12 |
| GB2006646B (en) | 1982-04-21 |
| NO783542L (no) | 1979-04-25 |
| DE2846000A1 (de) | 1979-04-26 |
| ATA755878A (de) | 1982-09-15 |
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