CH624915A5 - Method of producing cement conglomerates of high strength - Google Patents
Method of producing cement conglomerates of high strength Download PDFInfo
- Publication number
- CH624915A5 CH624915A5 CH723576A CH723576A CH624915A5 CH 624915 A5 CH624915 A5 CH 624915A5 CH 723576 A CH723576 A CH 723576A CH 723576 A CH723576 A CH 723576A CH 624915 A5 CH624915 A5 CH 624915A5
- Authority
- CH
- Switzerland
- Prior art keywords
- mixture
- added
- component
- water
- acid
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000004568 cement Substances 0.000 title claims description 31
- 239000000203 mixture Substances 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011230 binding agent Substances 0.000 claims abstract description 13
- 229920002472 Starch Polymers 0.000 claims abstract description 11
- 235000019698 starch Nutrition 0.000 claims abstract description 11
- 239000008107 starch Substances 0.000 claims abstract description 10
- 239000012615 aggregate Substances 0.000 claims abstract description 9
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 8
- 125000003118 aryl group Chemical group 0.000 claims abstract description 6
- 239000003792 electrolyte Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 235000013311 vegetables Nutrition 0.000 claims abstract description 6
- 240000007594 Oryza sativa Species 0.000 claims abstract description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 5
- 244000061456 Solanum tuberosum Species 0.000 claims abstract description 5
- 235000002595 Solanum tuberosum Nutrition 0.000 claims abstract description 5
- 241000209140 Triticum Species 0.000 claims abstract description 5
- 235000021307 Triticum Nutrition 0.000 claims abstract description 5
- 240000008042 Zea mays Species 0.000 claims abstract description 5
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 5
- 235000012015 potatoes Nutrition 0.000 claims abstract description 5
- 235000009566 rice Nutrition 0.000 claims abstract description 5
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract description 4
- 230000007062 hydrolysis Effects 0.000 claims abstract description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 30
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 5
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
- 235000005822 corn Nutrition 0.000 claims description 4
- 159000000000 sodium salts Chemical class 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- 238000005903 acid hydrolysis reaction Methods 0.000 claims description 2
- 230000007071 enzymatic hydrolysis Effects 0.000 claims description 2
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- HIEHAIZHJZLEPQ-UHFFFAOYSA-M sodium;naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 HIEHAIZHJZLEPQ-UHFFFAOYSA-M 0.000 claims description 2
- 238000009283 thermal hydrolysis Methods 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 150000004996 alkyl benzenes Chemical class 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 239000000908 ammonium hydroxide Substances 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 abstract 1
- 235000009973 maize Nutrition 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 1
- 229920003169 water-soluble polymer Polymers 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 65
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 235000019256 formaldehyde Nutrition 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 239000011398 Portland cement Substances 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 235000011194 food seasoning agent Nutrition 0.000 description 5
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 5
- 150000004676 glycans Chemical class 0.000 description 5
- 229920001282 polysaccharide Polymers 0.000 description 5
- 239000005017 polysaccharide Substances 0.000 description 5
- 238000003892 spreading Methods 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 239000006188 syrup Substances 0.000 description 3
- 235000020357 syrup Nutrition 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000006072 paste Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000008247 solid mixture Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920000388 Polyphosphate Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- YWPOLRBWRRKLMW-UHFFFAOYSA-M sodium;naphthalene-2-sulfonate Chemical compound [Na+].C1=CC=CC2=CC(S(=O)(=O)[O-])=CC=C21 YWPOLRBWRRKLMW-UHFFFAOYSA-M 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910021653 sulphate ion 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
- C08G16/00—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00
- C08G16/02—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes
- C08G16/0212—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds
- C08G16/0218—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds containing atoms other than carbon and hydrogen
- C08G16/0237—Condensation polymers of aldehydes or ketones with monomers not provided for in the groups C08G4/00 - C08G14/00 of aldehydes with acyclic or carbocyclic organic compounds containing atoms other than carbon and hydrogen containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT84134/75A IT1045175B (it) | 1975-06-13 | 1975-06-13 | Additivo per impasti di leganti inorganici quali paste malte calcestruzzi e simili e metodo per preparare impasti contenenti detto additivo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH624915A5 true CH624915A5 (en) | 1981-08-31 |
Family
ID=11324546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH723576A CH624915A5 (en) | 1975-06-13 | 1976-06-09 | Method of producing cement conglomerates of high strength |
Country Status (29)
| Country | Link |
|---|---|
| US (1) | US4088504A (xx) |
| JP (1) | JPS5214621A (xx) |
| AR (1) | AR213408A1 (xx) |
| AU (1) | AU501628B2 (xx) |
| BE (1) | BE842825A (xx) |
| BR (1) | BR7603788A (xx) |
| CA (1) | CA1053393A (xx) |
| CH (1) | CH624915A5 (xx) |
| DE (1) | DE2626426A1 (xx) |
| DK (1) | DK144939C (xx) |
| DO (1) | DOP1976002533A (xx) |
| EG (1) | EG12046A (xx) |
| ES (1) | ES448775A1 (xx) |
| FI (1) | FI62046C (xx) |
| FR (1) | FR2314155A1 (xx) |
| GB (1) | GB1548593A (xx) |
| GR (1) | GR60321B (xx) |
| IE (1) | IE42847B1 (xx) |
| IL (1) | IL49759A (xx) |
| IT (1) | IT1045175B (xx) |
| MX (1) | MX3353E (xx) |
| NL (1) | NL7511046A (xx) |
| NO (1) | NO146234C (xx) |
| NZ (1) | NZ181112A (xx) |
| PT (1) | PT65211B (xx) |
| SE (1) | SE418492B (xx) |
| TR (1) | TR18926A (xx) |
| YU (1) | YU144176A (xx) |
| ZA (1) | ZA763393B (xx) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443439A1 (fr) * | 1978-12-05 | 1980-07-04 | Rhone Poulenc Ind | Procede de confection de mortiers et betons de liants hydrauliques |
| GR68405B (xx) * | 1979-05-31 | 1981-12-29 | Flowcon Oy | |
| US4290817A (en) * | 1980-01-16 | 1981-09-22 | Diamond Shamrock Corporation | Glucoheptonate composition |
| US4286991A (en) * | 1980-04-25 | 1981-09-01 | United States Gypsum Company | Very high early strength cement |
| JPS5747754A (en) * | 1980-09-05 | 1982-03-18 | Denki Kagaku Kogyo Kk | Mortar or concrete workability improvement |
| DE3276699D1 (en) * | 1982-05-10 | 1987-08-13 | Sandoz Ag | Admixture for cold-weather concrete |
| JPS605948U (ja) * | 1983-06-27 | 1985-01-17 | 中尾 篁 | 自動車の側面ミラ−装置 |
| US4839116A (en) * | 1984-03-12 | 1989-06-13 | Macgregor Golf Company | Method of molding a foamed core short distance golf ball |
| JPS61111954A (ja) * | 1984-11-02 | 1986-05-30 | 小野田エー・エル・シー株式会社 | ポルトランドセメントの凝結硬化促進方法 |
| AU5592986A (en) * | 1985-04-24 | 1986-10-30 | Dow Chemical Company, The | Fluid concrete mixture with polymeric dewatering and anti-agglomeration agents |
| DE4239033A1 (xx) * | 1992-03-19 | 1993-09-23 | Fraunhofer Ges Forschung | |
| US5366550A (en) * | 1993-04-02 | 1994-11-22 | Tec Incorporated | Latex modified cement-based thin set adhesive |
| EP0650941B1 (en) * | 1993-10-29 | 1997-03-19 | Sandoz Ltd. | Water-reducing admixtures for cementitious compositions |
| US5435845A (en) * | 1993-11-02 | 1995-07-25 | Henkel Corporation | Glucoheptonate compositions and methods |
| US6387171B1 (en) * | 2000-05-25 | 2002-05-14 | Grain Processing Corporation | Concrete compositions and methods for the preparation thereof |
| GB2378946A (en) * | 2001-08-24 | 2003-02-26 | Rmc Group Plc | Preparation of an admixture for cementitious compositions |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2358730A (en) * | 1941-05-26 | 1944-09-19 | Kerr Dental Mfg Co | Method for forming artificial dentures |
| US2662024A (en) * | 1951-03-01 | 1953-12-08 | Kaiser Gypsum Company Inc | Cementitious compositions |
| IT713241A (xx) * | 1964-01-16 | |||
| BE659803A (xx) * | 1964-05-18 | |||
| US3520708A (en) * | 1965-12-23 | 1970-07-14 | Berk Ltd | Manufacture of calcium sulphate hemihydrate |
| FR1543999A (fr) * | 1967-07-11 | 1968-10-31 | Perfectionnements aux retardateurs de prise pour ciments, chaux hydraulique et autres liants hydrauliques | |
| BE756874A (fr) * | 1969-10-08 | 1971-03-01 | Prost Sa | Compositions refractaires a prise hydraulique |
| US3857715A (en) * | 1972-03-01 | 1974-12-31 | C Humphrey | Extrusile hydraulic cement compositions containing alkali and carbohydrate |
| DE2322707C3 (de) | 1973-05-05 | 1980-03-06 | Bayer Ag, 5090 Leverkusen | Mörtel aus anorganischen Bindemitteln |
-
1975
- 1975-06-13 IT IT84134/75A patent/IT1045175B/it active
- 1975-09-19 NL NL7511046A patent/NL7511046A/xx not_active Application Discontinuation
-
1976
- 1976-06-08 GR GR50930A patent/GR60321B/el unknown
- 1976-06-08 FI FI761614A patent/FI62046C/fi not_active IP Right Cessation
- 1976-06-08 ZA ZA00763393A patent/ZA763393B/xx unknown
- 1976-06-09 NZ NZ181112A patent/NZ181112A/xx unknown
- 1976-06-09 CH CH723576A patent/CH624915A5/it not_active IP Right Cessation
- 1976-06-09 SE SE7606484A patent/SE418492B/xx unknown
- 1976-06-09 FR FR7617362A patent/FR2314155A1/fr active Granted
- 1976-06-09 AU AU14742/76A patent/AU501628B2/en not_active Expired
- 1976-06-09 IE IE1224/76A patent/IE42847B1/en unknown
- 1976-06-10 NO NO762016A patent/NO146234C/no unknown
- 1976-06-10 IL IL49759A patent/IL49759A/xx unknown
- 1976-06-10 BE BE6045546A patent/BE842825A/xx unknown
- 1976-06-11 CA CA254,726A patent/CA1053393A/en not_active Expired
- 1976-06-11 PT PT65211A patent/PT65211B/pt unknown
- 1976-06-11 TR TR18926A patent/TR18926A/xx unknown
- 1976-06-11 DK DK262876A patent/DK144939C/da active
- 1976-06-11 ES ES448775A patent/ES448775A1/es not_active Expired
- 1976-06-11 DO DO1976002533A patent/DOP1976002533A/es unknown
- 1976-06-11 BR BR7603788A patent/BR7603788A/pt unknown
- 1976-06-11 GB GB24288/76A patent/GB1548593A/en not_active Expired
- 1976-06-11 YU YU01441/76A patent/YU144176A/xx unknown
- 1976-06-11 AR AR263601A patent/AR213408A1/es active
- 1976-06-11 US US05/695,114 patent/US4088504A/en not_active Expired - Lifetime
- 1976-06-12 EG EG345/76A patent/EG12046A/xx active
- 1976-06-12 DE DE19762626426 patent/DE2626426A1/de not_active Withdrawn
- 1976-06-12 JP JP51068243A patent/JPS5214621A/ja active Pending
- 1976-06-14 MX MX000308U patent/MX3353E/es unknown
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