GB1575424A - Plasticiser-containing polyvinylbutyral sheets having a reduced adhesion to glass - Google Patents
Plasticiser-containing polyvinylbutyral sheets having a reduced adhesion to glass Download PDFInfo
- Publication number
- GB1575424A GB1575424A GB42663/77A GB4266377A GB1575424A GB 1575424 A GB1575424 A GB 1575424A GB 42663/77 A GB42663/77 A GB 42663/77A GB 4266377 A GB4266377 A GB 4266377A GB 1575424 A GB1575424 A GB 1575424A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- polyvinylbutyral
- weight
- betain
- glass
- 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
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 title claims description 44
- 239000011521 glass Substances 0.000 title claims description 32
- 239000004014 plasticizer Substances 0.000 title claims description 23
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000005340 laminated glass Substances 0.000 claims description 12
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 9
- 125000004432 carbon atom Chemical group C* 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 5
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 claims description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 150000002148 esters Chemical group 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- 238000010626 work up procedure Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 125000006574 non-aromatic ring group Chemical group 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 239000003381 stabilizer Substances 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 125000001931 aliphatic group Chemical group 0.000 claims 1
- 150000003568 thioethers Chemical group 0.000 claims 1
- 229920000642 polymer Polymers 0.000 description 18
- 238000012360 testing method Methods 0.000 description 13
- 230000000181 anti-adherent effect Effects 0.000 description 10
- -1 alkali metal salts Chemical class 0.000 description 9
- 230000003750 conditioning effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- OXQGTIUCKGYOAA-UHFFFAOYSA-N 2-Ethylbutanoic acid Chemical compound CCC(CC)C(O)=O OXQGTIUCKGYOAA-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 3
- 235000010445 lecithin Nutrition 0.000 description 3
- 229940067606 lecithin Drugs 0.000 description 3
- 239000000787 lecithin Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 1
- CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical group CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- PYGXAGIECVVIOZ-UHFFFAOYSA-N Dibutyl decanedioate Chemical compound CCCCOC(=O)CCCCCCCCC(=O)OCCCC PYGXAGIECVVIOZ-UHFFFAOYSA-N 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002989 phenols Chemical group 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 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
- B32B27/30—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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10688—Adjustment of the adherence to the glass layers
-
- 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
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
-
- 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
- C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- 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]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31627—Next to aldehyde or ketone condensation product
- Y10T428/3163—Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2646280A DE2646280C2 (de) | 1976-10-14 | 1976-10-14 | Weichmacherhaltige Polyvinylbutyralfolien mit reduzierter Haftung an Glas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1575424A true GB1575424A (en) | 1980-09-24 |
Family
ID=5990389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42663/77A Expired GB1575424A (en) | 1976-10-14 | 1977-10-13 | Plasticiser-containing polyvinylbutyral sheets having a reduced adhesion to glass |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4161565A (enExample) |
| JP (1) | JPS5349008A (enExample) |
| AT (1) | AT358829B (enExample) |
| BE (1) | BE859756A (enExample) |
| CA (1) | CA1094714A (enExample) |
| CS (1) | CS196223B2 (enExample) |
| DE (1) | DE2646280C2 (enExample) |
| ES (1) | ES463009A1 (enExample) |
| FR (1) | FR2367795A1 (enExample) |
| GB (1) | GB1575424A (enExample) |
| MX (1) | MX146637A (enExample) |
| NL (1) | NL7711043A (enExample) |
| SE (1) | SE425794B (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4226818A (en) * | 1979-06-08 | 1980-10-07 | Monsanto Company | Production of polyvinylbutyral sheet rolls |
| US4292372A (en) * | 1980-06-02 | 1981-09-29 | E. I. Du Pont De Nemours And Company | Polyvinylbutyral sheeting |
| US4452935A (en) * | 1981-06-01 | 1984-06-05 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Interlayer film for laminated glass |
| DE3303156A1 (de) * | 1983-01-31 | 1984-08-02 | Hoechst Ag, 6230 Frankfurt | Weichmacherhaltige polyvinylbutyralfolien mit reduziertem haftvermoegen an glas |
| DE3417653A1 (de) * | 1984-05-12 | 1985-11-14 | Hoechst Ag, 6230 Frankfurt | Weichmacherhaltige thermoplastische polyvinylbutyralformmassen mit reduziertem haftvermoegen an glas |
| JP2688557B2 (ja) * | 1992-09-07 | 1997-12-10 | 花王株式会社 | ポリビニルアルコール系フィルム |
| US5536347A (en) * | 1994-09-22 | 1996-07-16 | Monsanto Company | No autoclave process for forming a safety glass laminate |
| US5886075A (en) * | 1995-03-14 | 1999-03-23 | E. I. Du Pont De Nemours And Company | Process for preparing polyvinylbutyral sheet |
| US6559212B1 (en) | 1995-12-29 | 2003-05-06 | Monsanto Company | Plasticized polyvinyl butyral and sheet |
| WO1999032284A1 (en) | 1997-12-19 | 1999-07-01 | E.I. Du Pont De Nemours And Company | Interlayer structure for laminated glass |
| CA2280652A1 (en) | 1998-09-16 | 2000-03-16 | The Goodyear Tire & Rubber Company | Protective coating for tire sidewalls and method for protecting tire sidewalls |
| US7238427B2 (en) * | 2004-11-02 | 2007-07-03 | Solutia Incorporated | Fire resistant polymer sheets |
| US8197928B2 (en) | 2006-12-29 | 2012-06-12 | E. I. Du Pont De Nemours And Company | Intrusion resistant safety glazings and solar cell modules |
| DE102007000817A1 (de) * | 2007-10-05 | 2009-04-09 | Kuraray Europe Gmbh | Weichmacherhaltige Folien auf Basis von Polyvinylacetal mit erhöhter Glasübergangstemperatur und verbessertem Fließverhalten |
| US20090242030A1 (en) * | 2008-03-26 | 2009-10-01 | E. I. Du Pont De Nemours And Company | High performance anti-spall laminate article |
| EP2259334A1 (de) * | 2009-06-05 | 2010-12-08 | Kuraray Europe GmbH | Photovoltaikmodule mit weichmacherhaltigen Folien geringer Kriechneigung |
| JP6770816B2 (ja) * | 2016-03-30 | 2020-10-21 | 株式会社トプコン | 部材の接合方法およびその方法により作製される光学素子 |
| CN116396579B (zh) * | 2023-03-16 | 2025-09-02 | 建滔(佛冈)特种树脂有限公司 | 一种抗粘性pvb胶片及其制备方法和应用 |
| CN120249862B (zh) * | 2025-06-05 | 2025-09-30 | 鞍钢股份有限公司 | 一种耐碱性畜牧业彩涂板及其制造方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3005793A (en) * | 1961-10-24 | Olefin polymer and a betaine com- | ||
| US2680724A (en) * | 1952-01-14 | 1954-06-08 | Spraylat Corp | Temporary protective coatings for finished surfaces from compositions comprising an aqueous dispersion of a plasticized polyvinyl butyral |
| US2682520A (en) * | 1952-10-29 | 1954-06-29 | Monsanto Chemicals | Modified polyvinyl acetal resin composition |
| US3361699A (en) * | 1965-02-25 | 1968-01-02 | Libbey Owens Ford Glass Co | Laminated glazing unit and method for producing same |
| DE1518865A1 (de) * | 1965-09-09 | 1969-09-04 | Bayer Ag | Verfahren zur Herstellung von ungesaettigten Sulfonsaeurebetainen |
| US3841955A (en) * | 1972-12-07 | 1974-10-15 | Monsanto Co | Plasticized polyvinyl butyral interlayers |
| JPS49111949A (enExample) * | 1973-02-27 | 1974-10-24 |
-
1976
- 1976-10-14 DE DE2646280A patent/DE2646280C2/de not_active Expired
-
1977
- 1977-10-07 NL NL7711043A patent/NL7711043A/xx not_active Application Discontinuation
- 1977-10-07 ES ES463009A patent/ES463009A1/es not_active Expired
- 1977-10-12 CS CS776627A patent/CS196223B2/cs unknown
- 1977-10-12 US US05/841,394 patent/US4161565A/en not_active Expired - Lifetime
- 1977-10-13 CA CA288,701A patent/CA1094714A/en not_active Expired
- 1977-10-13 SE SE7711527A patent/SE425794B/xx unknown
- 1977-10-13 JP JP12196577A patent/JPS5349008A/ja active Pending
- 1977-10-13 GB GB42663/77A patent/GB1575424A/en not_active Expired
- 1977-10-13 AT AT731477A patent/AT358829B/de not_active IP Right Cessation
- 1977-10-14 MX MX170938A patent/MX146637A/es unknown
- 1977-10-14 BE BE181769A patent/BE859756A/xx not_active IP Right Cessation
- 1977-10-14 FR FR7730948A patent/FR2367795A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5349008A (en) | 1978-05-04 |
| BE859756A (fr) | 1978-04-14 |
| DE2646280A1 (de) | 1978-04-20 |
| US4161565A (en) | 1979-07-17 |
| CS196223B2 (en) | 1980-03-31 |
| CA1094714A (en) | 1981-01-27 |
| NL7711043A (nl) | 1978-04-18 |
| SE7711527L (sv) | 1978-04-15 |
| ATA731477A (de) | 1980-02-15 |
| FR2367795A1 (fr) | 1978-05-12 |
| FR2367795B1 (enExample) | 1984-05-18 |
| SE425794B (sv) | 1982-11-08 |
| DE2646280C2 (de) | 1985-10-10 |
| ES463009A1 (es) | 1979-01-01 |
| MX146637A (es) | 1982-07-21 |
| AT358829B (de) | 1980-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |