DE3005896A1 - Betonmischung - Google Patents
BetonmischungInfo
- Publication number
- DE3005896A1 DE3005896A1 DE19803005896 DE3005896A DE3005896A1 DE 3005896 A1 DE3005896 A1 DE 3005896A1 DE 19803005896 DE19803005896 DE 19803005896 DE 3005896 A DE3005896 A DE 3005896A DE 3005896 A1 DE3005896 A1 DE 3005896A1
- Authority
- DE
- Germany
- Prior art keywords
- concrete
- cement
- corrosion
- concrete mix
- calcium
- 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.)
- Granted
Links
- 239000004567 concrete Substances 0.000 title claims description 62
- 239000000203 mixture Substances 0.000 title claims description 46
- 239000004568 cement Substances 0.000 claims description 41
- 238000005260 corrosion Methods 0.000 claims description 30
- 230000007797 corrosion Effects 0.000 claims description 27
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims description 27
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000011372 high-strength concrete Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000012615 aggregate Substances 0.000 description 16
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 10
- 239000011396 hydraulic cement Substances 0.000 description 9
- 239000011398 Portland cement Substances 0.000 description 6
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 6
- 235000012241 calcium silicate Nutrition 0.000 description 6
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000004576 sand Substances 0.000 description 6
- 235000019976 tricalcium silicate Nutrition 0.000 description 6
- 229910052918 calcium silicate Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 235000010288 sodium nitrite Nutrition 0.000 description 5
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Chemical group 0.000 description 2
- AGWMJKGGLUJAPB-UHFFFAOYSA-N aluminum;dicalcium;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Ca+2].[Ca+2].[Fe+3] AGWMJKGGLUJAPB-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229940044172 calcium formate Drugs 0.000 description 2
- 239000004281 calcium formate Substances 0.000 description 2
- 235000019255 calcium formate Nutrition 0.000 description 2
- 229920005551 calcium lignosulfonate Polymers 0.000 description 2
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 239000010959 steel Chemical group 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- VEMHQNXVHVAHDN-UHFFFAOYSA-J [Cu+2].[Cu+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O Chemical compound [Cu+2].[Cu+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VEMHQNXVHVAHDN-UHFFFAOYSA-J 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- MKTRXTLKNXLULX-UHFFFAOYSA-P pentacalcium;dioxido(oxo)silane;hydron;tetrahydrate Chemical compound [H+].[H+].O.O.O.O.[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O MKTRXTLKNXLULX-UHFFFAOYSA-P 0.000 description 1
- 229920000580 poly(melamine) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000417 polynaphthalene Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/48—Metal
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/085—Acids or salts thereof containing nitrogen in the anion, e.g. nitrites
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/61—Corrosion inhibitors
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Reinforcement Elements For Buildings (AREA)
- Rod-Shaped Construction Members (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1808579A | 1979-03-06 | 1979-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3005896A1 true DE3005896A1 (de) | 1980-09-18 |
| DE3005896C2 DE3005896C2 (enrdf_load_html_response) | 1990-08-23 |
Family
ID=21786154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803005896 Granted DE3005896A1 (de) | 1979-03-06 | 1980-02-16 | Betonmischung |
Country Status (22)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398959A (en) * | 1981-04-15 | 1983-08-16 | W. R. Grace & Co. | Mortar topping with calcium nitrite |
| US4466834A (en) * | 1983-01-03 | 1984-08-21 | W. R. Grace & Co. | Corrosion inhibiting additive for cement compositions |
| JPS60204683A (ja) * | 1984-03-29 | 1985-10-16 | 株式会社小野田 | 無機質材中の鋼材を防錆する方法 |
| US4829107A (en) * | 1988-02-24 | 1989-05-09 | W. R. Grace & Co.-Conn. | Rice hull ash concrete admixture |
| JP4916648B2 (ja) * | 2004-07-02 | 2012-04-18 | 電気化学工業株式会社 | 防錆処理方法 |
| EP2371781B1 (en) | 2008-11-28 | 2013-09-18 | Arturo Solis Herrera | Cement mixture with significantly improved physico-chemical and bacteriological properties that contains dopamelanin as an additive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427175A (en) * | 1965-06-14 | 1969-02-11 | Grace W R & Co | Accelerator for portland cement |
| DE2729580A1 (de) * | 1976-06-28 | 1978-01-05 | Grace W R & Co | Korrosionsschutz von metallen in zement enthaltenden konstruktionen |
-
1980
- 1980-02-16 DE DE19803005896 patent/DE3005896A1/de active Granted
- 1980-02-18 IT IT19984/80A patent/IT1193258B/it active
- 1980-02-25 NZ NZ192963A patent/NZ192963A/xx unknown
- 1980-02-28 NL NL8001206A patent/NL8001206A/nl active Search and Examination
- 1980-02-29 ZA ZA00801164A patent/ZA801164B/xx unknown
- 1980-03-03 BR BR8001250A patent/BR8001250A/pt unknown
- 1980-03-04 AU AU56119/80A patent/AU528193B2/en not_active Expired
- 1980-03-05 FR FR8004963A patent/FR2460901B1/fr not_active Expired
- 1980-03-05 FI FI800677A patent/FI800677A7/fi not_active Application Discontinuation
- 1980-03-05 CH CH174780A patent/CH645872A5/de not_active IP Right Cessation
- 1980-03-05 DK DK094780A patent/DK157918C/da not_active IP Right Cessation
- 1980-03-05 GB GB8007542A patent/GB2044241A/en not_active Expired - Lifetime
- 1980-03-05 NO NO800637A patent/NO151544C/no unknown
- 1980-03-05 JP JP2677480A patent/JPS55154368A/ja active Granted
- 1980-03-05 SE SE8001745A patent/SE452454B/sv not_active IP Right Cessation
- 1980-03-06 MX MX181450A patent/MX154260A/es unknown
- 1980-03-06 AT AT0124180A patent/AT379364B/de not_active IP Right Cessation
- 1980-03-06 AR AR280209A patent/AR227388A1/es active
- 1980-03-06 BE BE0/199696A patent/BE882110A/fr not_active IP Right Cessation
-
1983
- 1983-08-10 SG SG48783A patent/SG48783G/en unknown
- 1983-12-15 HK HK674/83A patent/HK67483A/en not_active IP Right Cessation
-
1984
- 1984-12-30 MY MY341/84A patent/MY8400341A/xx unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3427175A (en) * | 1965-06-14 | 1969-02-11 | Grace W R & Co | Accelerator for portland cement |
| DE2729580A1 (de) * | 1976-06-28 | 1978-01-05 | Grace W R & Co | Korrosionsschutz von metallen in zement enthaltenden konstruktionen |
Non-Patent Citations (1)
| Title |
|---|
| DE-B.: KRENKLER K.: Chemie des Bauwesens, Bd. 1, Anorganische Chemie, Springer-Verlag 1980, S. 189-209 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0228532B2 (enrdf_load_html_response) | 1990-06-25 |
| FR2460901A1 (fr) | 1981-01-30 |
| HK67483A (en) | 1983-12-23 |
| IT8019984A0 (it) | 1980-02-18 |
| ZA801164B (en) | 1981-03-25 |
| GB2044241A (en) | 1980-10-15 |
| NO151544B (no) | 1985-01-14 |
| BE882110A (fr) | 1980-07-01 |
| FR2460901B1 (fr) | 1985-12-27 |
| NL8001206A (nl) | 1980-09-09 |
| AU5611980A (en) | 1980-09-11 |
| CH645872A5 (de) | 1984-10-31 |
| GB2044241B (enrdf_load_html_response) | |
| AR227388A1 (es) | 1982-10-29 |
| MY8400341A (en) | 1984-12-31 |
| AT379364B (de) | 1985-12-27 |
| NO151544C (no) | 1985-05-02 |
| SE8001745L (enrdf_load_html_response) | |
| MX154260A (es) | 1987-06-29 |
| DK94780A (da) | 1980-09-07 |
| NZ192963A (en) | 1982-05-25 |
| DK157918B (da) | 1990-03-05 |
| NO800637L (no) | 1980-09-08 |
| AU528193B2 (en) | 1983-04-21 |
| JPS55154368A (en) | 1980-12-01 |
| SG48783G (en) | 1984-07-27 |
| IT1193258B (it) | 1988-06-15 |
| FI800677A7 (fi) | 1981-01-01 |
| DE3005896C2 (enrdf_load_html_response) | 1990-08-23 |
| BR8001250A (pt) | 1980-12-23 |
| DK157918C (da) | 1990-08-13 |
| SE452454B (sv) | 1987-11-30 |
| ATA124180A (de) | 1985-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: W.R. GRACE & CO.-CONN., NEW YORK, N.Y., US |
|
| 8128 | New person/name/address of the agent |
Representative=s name: FRHR. VON UEXKUELL, J., DIPL.-CHEM. DR.RER.NAT. GR |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8328 | Change in the person/name/address of the agent |
Free format text: STOLBERG-WERNIGERODE, GRAF ZU, U., DIPL.-CHEM. DR.RER.NAT. SUCHANTKE, J., DIPL.-ING. HUBER, A., DIPL.-ING. KAMEKE, VON, A., DIPL.-CHEM. DR.RER.NAT. VOELKER, I., DIPL.-BIOL. FRANCK, P., DIPL.-CHEM.ETH DR.SC.TECHN., PAT.-ANWAELTE, 2000 HAMBURG |
|
| 8339 | Ceased/non-payment of the annual fee |