CA2155367A1 - Production of nitrosamine-free silicone articles - Google Patents
Production of nitrosamine-free silicone articlesInfo
- Publication number
- CA2155367A1 CA2155367A1 CA002155367A CA2155367A CA2155367A1 CA 2155367 A1 CA2155367 A1 CA 2155367A1 CA 002155367 A CA002155367 A CA 002155367A CA 2155367 A CA2155367 A CA 2155367A CA 2155367 A1 CA2155367 A1 CA 2155367A1
- Authority
- CA
- Canada
- Prior art keywords
- mixture
- post
- nitrosamine
- cured
- post baked
- 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.)
- Abandoned
Links
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000012298 atmosphere Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 44
- -1 silicon hydride siloxane Chemical class 0.000 claims description 23
- 229910052990 silicon hydride Inorganic materials 0.000 claims description 12
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 10
- 229920002554 vinyl polymer Polymers 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 7
- 239000003112 inhibitor Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 229920001971 elastomer Polymers 0.000 description 16
- 229910052697 platinum Inorganic materials 0.000 description 15
- 239000005060 rubber Substances 0.000 description 15
- 210000002445 nipple Anatomy 0.000 description 14
- UMFJAHHVKNCGLG-UHFFFAOYSA-N n-Nitrosodimethylamine Chemical compound CN(C)N=O UMFJAHHVKNCGLG-UHFFFAOYSA-N 0.000 description 11
- 235000013350 formula milk Nutrition 0.000 description 10
- 150000004005 nitrosamines Chemical class 0.000 description 10
- 229920002379 silicone rubber Polymers 0.000 description 9
- 229920000642 polymer Polymers 0.000 description 8
- 239000000377 silicon dioxide Substances 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000008267 milk Substances 0.000 description 6
- 210000004080 milk Anatomy 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 235000013336 milk Nutrition 0.000 description 5
- 150000002978 peroxides Chemical class 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000003060 catalysis inhibitor Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910021485 fumed silica Inorganic materials 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000012763 reinforcing filler Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 101150014126 incG gene Proteins 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229930195730 Aflatoxin Natural products 0.000 description 1
- XWIYFDMXXLINPU-UHFFFAOYSA-N Aflatoxin G Chemical compound O=C1OCCC2=C1C(=O)OC1=C2C(OC)=CC2=C1C1C=COC1O2 XWIYFDMXXLINPU-UHFFFAOYSA-N 0.000 description 1
- 241000256844 Apis mellifera Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001524654 Ilione Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- YLKFDHTUAUWZPQ-UHFFFAOYSA-N N-Nitrosodi-n-propylamine Chemical compound CCCN(N=O)CCC YLKFDHTUAUWZPQ-UHFFFAOYSA-N 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- WBNQDOYYEUMPFS-UHFFFAOYSA-N N-nitrosodiethylamine Chemical compound CCN(CC)N=O WBNQDOYYEUMPFS-UHFFFAOYSA-N 0.000 description 1
- UWSDONTXWQOZFN-UHFFFAOYSA-N N-nitrosopiperidine Chemical compound O=NN1CCCCC1 UWSDONTXWQOZFN-UHFFFAOYSA-N 0.000 description 1
- 239000004965 Silica aerogel Substances 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000005409 aflatoxin Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000006459 hydrosilylation reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
- 229910021489 α-quartz Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/32—Post-polymerisation treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29898194A | 1994-08-31 | 1994-08-31 | |
| US08/298,981 | 1994-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2155367A1 true CA2155367A1 (en) | 1996-03-01 |
Family
ID=23152838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002155367A Abandoned CA2155367A1 (en) | 1994-08-31 | 1995-08-03 | Production of nitrosamine-free silicone articles |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5665847A (en, 2012) |
| EP (1) | EP0704493B1 (en, 2012) |
| JP (1) | JPH08199068A (en, 2012) |
| CN (1) | CN1070521C (en, 2012) |
| CA (1) | CA2155367A1 (en, 2012) |
| DE (1) | DE69520997D1 (en, 2012) |
| NO (1) | NO308366B1 (en, 2012) |
| SG (1) | SG34240A1 (en, 2012) |
| TW (1) | TW289761B (en, 2012) |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3220972A (en) | 1962-07-02 | 1965-11-30 | Gen Electric | Organosilicon process using a chloroplatinic acid reaction product as the catalyst |
| US3197433A (en) | 1962-07-02 | 1965-07-27 | Gen Electric | Optically clear organopolysiloxane resins |
| NL129346C (en, 2012) | 1966-06-23 | |||
| US3635743A (en) | 1969-01-06 | 1972-01-18 | Gen Electric | Reinforcing silica filler |
| US3814730A (en) | 1970-08-06 | 1974-06-04 | Gen Electric | Platinum complexes of unsaturated siloxanes and platinum containing organopolysiloxanes |
| US3715334A (en) | 1970-11-27 | 1973-02-06 | Gen Electric | Platinum-vinylsiloxanes |
| US3847848A (en) | 1972-12-04 | 1974-11-12 | Gen Electric | Two-part room temperature vulcanizable silicone rubber compositions |
| US3884866A (en) | 1973-04-13 | 1975-05-20 | Gen Electric | High strength organopolysiloxane compositions |
| US3917432A (en) | 1974-11-13 | 1975-11-04 | Gen Electric | Borescope support apparatus |
| US3989667A (en) | 1974-12-02 | 1976-11-02 | Dow Corning Corporation | Olefinic siloxanes as platinum inhibitors |
| US4162243A (en) | 1978-05-08 | 1979-07-24 | Dow Corning Corporation | High strength, extrudable silicone elastomer compositions |
| US4288345A (en) | 1980-02-06 | 1981-09-08 | General Electric Company | Platinum complex |
| US4340709A (en) | 1980-07-16 | 1982-07-20 | General Electric Company | Addition curing silicone compositions |
| US4382057A (en) | 1981-12-04 | 1983-05-03 | General Electric Company | Silicone rubber compositions for liquid injection molding machines |
| US4427801A (en) | 1982-04-14 | 1984-01-24 | Dow Corning Corporation | Extrudable silicone elastomer compositions |
| US4529774A (en) | 1982-08-20 | 1985-07-16 | General Electric Company | Treated silica fillers and process for making same |
| US5082886A (en) | 1989-08-28 | 1992-01-21 | General Electric Company | Low compression set, oil and fuel resistant, liquid injection moldable, silicone rubber |
| US5244582A (en) * | 1990-06-25 | 1993-09-14 | The Curators Of The University Of Missouri | Immobilized reagents for scavenging nitrosating agents |
| US5087671A (en) * | 1990-06-25 | 1992-02-11 | The Curators Of The University Of Missouri | Polymers for scavenging nitrosating agents |
| US5122562A (en) * | 1990-09-25 | 1992-06-16 | General Electric Company | Heat curable silicone rubber compositions |
| CA2080153A1 (en) | 1991-11-29 | 1993-05-30 | Chris A. Sumpter | Heat curable organopolysiloxane compositions, preformed latent platinum catalysts, and methods for making |
| US5543457A (en) * | 1994-12-07 | 1996-08-06 | General Electric Company | Additive for the prevention of nitrosamine formation in silicone articles |
-
1995
- 1995-03-04 TW TW084102069A patent/TW289761B/zh active
- 1995-06-27 SG SG1995000738A patent/SG34240A1/en unknown
- 1995-08-03 CA CA002155367A patent/CA2155367A1/en not_active Abandoned
- 1995-08-09 EP EP95305552A patent/EP0704493B1/en not_active Expired - Lifetime
- 1995-08-09 DE DE69520997T patent/DE69520997D1/de not_active Expired - Lifetime
- 1995-08-29 JP JP7220240A patent/JPH08199068A/ja not_active Withdrawn
- 1995-08-30 NO NO953403A patent/NO308366B1/no not_active IP Right Cessation
- 1995-08-31 CN CN95116934A patent/CN1070521C/zh not_active Expired - Fee Related
-
1996
- 1996-01-31 US US08/594,508 patent/US5665847A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1070521C (zh) | 2001-09-05 |
| NO308366B1 (no) | 2000-09-04 |
| US5665847A (en) | 1997-09-09 |
| CN1123292A (zh) | 1996-05-29 |
| TW289761B (en, 2012) | 1996-11-01 |
| JPH08199068A (ja) | 1996-08-06 |
| DE69520997D1 (de) | 2001-06-28 |
| SG34240A1 (en) | 1996-12-06 |
| NO953403L (no) | 1996-03-01 |
| EP0704493A2 (en) | 1996-04-03 |
| EP0704493B1 (en) | 2001-05-23 |
| NO953403D0 (no) | 1995-08-30 |
| EP0704493A3 (en) | 1996-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |