CH619156A5 - - Google Patents
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- Publication number
- CH619156A5 CH619156A5 CH142775A CH142775A CH619156A5 CH 619156 A5 CH619156 A5 CH 619156A5 CH 142775 A CH142775 A CH 142775A CH 142775 A CH142775 A CH 142775A CH 619156 A5 CH619156 A5 CH 619156A5
- Authority
- CH
- Switzerland
- Prior art keywords
- water
- hydroxyl groups
- reaction
- methacrylates
- acrylates
- Prior art date
Links
- 239000000499 gel Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229920001577 copolymer Polymers 0.000 claims description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 150000001450 anions Chemical class 0.000 claims description 7
- -1 hydroxyalkyl methacrylates Chemical class 0.000 claims description 5
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000003957 anion exchange resin Substances 0.000 claims description 3
- 150000001768 cations Chemical class 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims 2
- 238000007334 copolymerization reaction Methods 0.000 claims 2
- 239000000178 monomer Substances 0.000 claims 2
- 239000000725 suspension Substances 0.000 claims 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims 1
- 150000003926 acrylamides Chemical class 0.000 claims 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 238000010494 dissociation reaction Methods 0.000 claims 1
- 230000005593 dissociations Effects 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 claims 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical class CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims 1
- 229920000058 polyacrylate Polymers 0.000 claims 1
- 229920000151 polyglycol Polymers 0.000 claims 1
- 239000010695 polyglycol Substances 0.000 claims 1
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 claims 1
- 229920000193 polymethacrylate Polymers 0.000 claims 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 31
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 22
- 239000000203 mixture Substances 0.000 description 17
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 11
- 239000000047 product Substances 0.000 description 8
- 230000007717 exclusion Effects 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 5
- YMDNODNLFSHHCV-UHFFFAOYSA-N 1-chloro-2-(diethylamino)ethane Natural products CCN(CC)CCCl YMDNODNLFSHHCV-UHFFFAOYSA-N 0.000 description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XFCMNSHQOZQILR-UHFFFAOYSA-N 2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOC(=O)C(C)=C XFCMNSHQOZQILR-UHFFFAOYSA-N 0.000 description 2
- OINMNSFDYTYXEQ-UHFFFAOYSA-M 2-bromoethyl(trimethyl)azanium;bromide Chemical compound [Br-].C[N+](C)(C)CCBr OINMNSFDYTYXEQ-UHFFFAOYSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000003708 ampul Substances 0.000 description 2
- 229920001222 biopolymer Polymers 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- MZGMQAMKOBOIDR-UHFFFAOYSA-N 2-[2-(2-hydroxyethoxy)ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCO MZGMQAMKOBOIDR-UHFFFAOYSA-N 0.000 description 1
- ZDUWCUXIWRAXLF-UHFFFAOYSA-N 2-bromo-5h-thieno[3,2-c]pyridin-4-one Chemical compound S1C(Br)=CC2=C1C=CNC2=O ZDUWCUXIWRAXLF-UHFFFAOYSA-N 0.000 description 1
- CKMRQPQTHYMMPY-UHFFFAOYSA-N 2-chloro-n-ethylethanamine Chemical compound CCNCCCl CKMRQPQTHYMMPY-UHFFFAOYSA-N 0.000 description 1
- RAGSWDIQBBZLLL-UHFFFAOYSA-N 2-chloroethyl(diethyl)azanium;chloride Chemical compound Cl.CCN(CC)CCCl RAGSWDIQBBZLLL-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000007696 Kjeldahl method Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- WHQSYGRFZMUQGQ-UHFFFAOYSA-N n,n-dimethylformamide;hydrate Chemical compound O.CN(C)C=O WHQSYGRFZMUQGQ-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
- B01J41/14—Macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS74896A CS187563B1 (en) | 1974-02-08 | 1974-02-08 | Method of preparation of the hydrophilic homogeneous or macroporous annexes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH619156A5 true CH619156A5 (cs) | 1980-09-15 |
Family
ID=5341987
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH142775A CH619156A5 (cs) | 1974-02-08 | 1975-02-06 | |
| CH256880A CH622716A5 (cs) | 1974-02-08 | 1980-04-01 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH256880A CH622716A5 (cs) | 1974-02-08 | 1980-04-01 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4101461A (cs) |
| JP (1) | JPS5915698B2 (cs) |
| AT (1) | AT336511B (cs) |
| CA (1) | CA1042596A (cs) |
| CH (2) | CH619156A5 (cs) |
| CS (2) | CS187563B1 (cs) |
| DE (1) | DE2505350A1 (cs) |
| FR (1) | FR2260597B1 (cs) |
| GB (1) | GB1500532A (cs) |
| NL (1) | NL182315C (cs) |
| SE (1) | SE424078B (cs) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378808A1 (fr) * | 1977-01-28 | 1978-08-25 | Mar Pha Etu Expl Marques | Nouveaux copolymeres hydrophiles a base de n-(tris(hydroxy-methyl)methyl)acrylamide ou de n-(tris (hydroxymethyl)methyl)methacrylamide, leur preparation et leur emploi dans les techniques de separation |
| US4251634A (en) * | 1977-05-03 | 1981-02-17 | Ceskoslovenska Akademie Ved | Hydrophilic macroporous three dimensional copolymers of hydroxyalkyl acrylates or methacrylates with crosslinking agents and the method of their manufacturing |
| JPS5467091A (en) * | 1977-11-05 | 1979-05-30 | Sumitomo Chem Co Ltd | Carrier for immobilized enzyme and its preparation |
| US4277566A (en) * | 1978-03-24 | 1981-07-07 | Sumitomo Chemical Company, Limited | Chelate resin prepared by aftertreatment of aminated resin with polyfunctional compound and amine |
| JPS6182112U (cs) * | 1984-11-02 | 1986-05-31 | ||
| JPS61139156U (cs) * | 1985-02-19 | 1986-08-28 | ||
| AT392776B (de) * | 1989-10-16 | 1991-06-10 | Chemiefaser Lenzing Ag | Verfahren zur reinigung waesseriger loesungen von n-methylmorpholin-n-oxid |
| US5254634A (en) * | 1990-07-20 | 1993-10-19 | Mitsubishi Kasei Corporation | Crosslinked copolymer particles and process for producing the same |
| US5900475A (en) * | 1994-06-10 | 1999-05-04 | Geltex Pharmaceuticals, Inc. | Hydrophobic sequestrant for cholesterol depletion |
| US5607669A (en) * | 1994-06-10 | 1997-03-04 | Geltex Pharmaceuticals, Inc. | Amine polymer sequestrant and method of cholesterol depletion |
| US5624963A (en) * | 1993-06-02 | 1997-04-29 | Geltex Pharmaceuticals, Inc. | Process for removing bile salts from a patient and compositions therefor |
| US6129910A (en) * | 1993-06-02 | 2000-10-10 | Geltex Pharmaceuticals, Inc. | Water-insoluble noncrosslinked bile acid sequestrants |
| US5929184A (en) * | 1993-06-02 | 1999-07-27 | Geltex Pharmaceuticals, Inc. | Hydrophilic nonamine-containing and amine-containing copolymers and their use as bile acid sequestrants |
| US5618530A (en) * | 1994-06-10 | 1997-04-08 | Geltex Pharmaceuticals, Inc. | Hydrophobic amine polymer sequestrant and method of cholesterol depletion |
| US5703188A (en) * | 1993-06-02 | 1997-12-30 | Geltex Pharmaceuticals, Inc. | Process for removing bile salts from a patient and compositions therefor |
| TW474813B (en) | 1994-06-10 | 2002-02-01 | Geltex Pharma Inc | Alkylated composition for removing bile salts from a patient |
| AUPO093296A0 (en) * | 1996-07-10 | 1996-08-01 | University Of Melbourne, The | Electrophoresis gels and crosslinking agents for their preparation |
| US6203785B1 (en) * | 1996-12-30 | 2001-03-20 | Geltex Pharmaceuticals, Inc. | Poly(diallylamine)-based bile acid sequestrants |
| US5936003A (en) * | 1997-03-03 | 1999-08-10 | Dionex Corporation | Hydrolytically stable resins for use in anion-exchange chromatography |
| US5925379A (en) * | 1997-03-27 | 1999-07-20 | Geltex Pharmaceuticals, Inc. | Interpenetrating polymer networks for sequestration of bile acids |
| US6423754B1 (en) | 1997-06-18 | 2002-07-23 | Geltex Pharmaceuticals, Inc. | Method for treating hypercholesterolemia with polyallylamine polymers |
| US6726905B1 (en) | 1997-11-05 | 2004-04-27 | Genzyme Corporation | Poly (diallylamines)-based phosphate binders |
| DE69936920T2 (de) * | 1998-06-12 | 2008-05-15 | Waters Investments Ltd., New Castle | Neue poröse ionenaustauschharze für die festphasenextraktion und chromatographie |
| US7232520B1 (en) * | 1998-06-12 | 2007-06-19 | Waters Investments Limited | Ion exchange porous resins for solid phase extraction and chromatography |
| US6464850B1 (en) | 1998-07-31 | 2002-10-15 | Biowhittaker Molecular Applications, Inc. | Method for producing hydrophilic monomers and uses thereof |
| US6117293A (en) * | 1998-07-31 | 2000-09-12 | Biowhittaker Molecular Applications, Inc. | Method for producing hydrophilic monomers and uses thereof |
| US6780327B1 (en) * | 1999-02-25 | 2004-08-24 | Pall Corporation | Positively charged membrane |
| US6759442B2 (en) * | 2000-06-02 | 2004-07-06 | Showa Denko Kabushiki Kaisha | Packing material for solid phase extraction and solid phase extraction method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL126243C (cs) * | 1959-06-12 | |||
| US3175997A (en) * | 1959-10-23 | 1965-03-30 | Phillips Petroleum Co | Method of preparing polymers containing hydroxy end groups |
| US3220960A (en) * | 1960-12-21 | 1965-11-30 | Wichterle Otto | Cross-linked hydrophilic polymers and articles made therefrom |
| US3178394A (en) * | 1961-01-24 | 1965-04-13 | Pittsburgh Plate Glass Co | Composition comprising acrylamide-styrene-formaldehyde reaction product with an organic diisocyanate |
| SE329915B (cs) * | 1965-04-02 | 1970-10-26 | Pharmacia Ab |
-
1974
- 1974-02-08 CS CS74896A patent/CS187563B1/cs unknown
-
1975
- 1975-02-06 CH CH142775A patent/CH619156A5/de not_active IP Right Cessation
- 1975-02-06 SE SE7501329A patent/SE424078B/xx not_active IP Right Cessation
- 1975-02-07 NL NLAANVRAGE7501509,A patent/NL182315C/xx not_active IP Right Cessation
- 1975-02-07 US US05/548,094 patent/US4101461A/en not_active Expired - Lifetime
- 1975-02-07 JP JP50015541A patent/JPS5915698B2/ja not_active Expired
- 1975-02-07 GB GB5231/75A patent/GB1500532A/en not_active Expired
- 1975-02-08 DE DE19752505350 patent/DE2505350A1/de not_active Ceased
- 1975-02-10 CA CA219,679A patent/CA1042596A/en not_active Expired
- 1975-02-10 FR FR757504021A patent/FR2260597B1/fr not_active Expired
- 1975-02-10 AT AT99575A patent/AT336511B/de not_active IP Right Cessation
-
1977
- 1977-11-15 CS CS777507A patent/CS189539B1/cs unknown
-
1980
- 1980-04-01 CH CH256880A patent/CH622716A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1500532A (en) | 1978-02-08 |
| NL7501509A (nl) | 1975-08-12 |
| CS189539B1 (en) | 1979-04-30 |
| JPS50123582A (cs) | 1975-09-29 |
| JPS5915698B2 (ja) | 1984-04-11 |
| ATA99575A (de) | 1976-08-15 |
| CA1042596A (en) | 1978-11-14 |
| DE2505350A1 (de) | 1975-08-14 |
| US4101461A (en) | 1978-07-18 |
| CH622716A5 (cs) | 1981-04-30 |
| FR2260597B1 (cs) | 1979-02-09 |
| NL182315B (nl) | 1987-09-16 |
| AT336511B (de) | 1977-05-10 |
| CS187563B1 (en) | 1979-02-28 |
| SE7501329L (cs) | 1975-08-11 |
| AU7795375A (en) | 1976-08-12 |
| NL182315C (nl) | 1988-02-16 |
| SE424078B (sv) | 1982-06-28 |
| FR2260597A1 (cs) | 1975-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |