DE2428706C3 - Verfahren zur Herstellung von Polyvinylchlorid und dessen Verwendung zur Herstellung von Weichschaumstoffen - Google Patents
Verfahren zur Herstellung von Polyvinylchlorid und dessen Verwendung zur Herstellung von WeichschaumstoffenInfo
- Publication number
- DE2428706C3 DE2428706C3 DE2428706A DE2428706A DE2428706C3 DE 2428706 C3 DE2428706 C3 DE 2428706C3 DE 2428706 A DE2428706 A DE 2428706A DE 2428706 A DE2428706 A DE 2428706A DE 2428706 C3 DE2428706 C3 DE 2428706C3
- Authority
- DE
- Germany
- Prior art keywords
- production
- see
- water
- alkyl
- polyvinyl chloride
- 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
- 229920000915 polyvinyl chloride Polymers 0.000 title claims description 16
- 239000004800 polyvinyl chloride Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000006260 foam Substances 0.000 title description 25
- 239000003995 emulsifying agent Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 10
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 description 15
- 239000011734 sodium Substances 0.000 description 15
- 239000011148 porous material Substances 0.000 description 12
- 238000005187 foaming Methods 0.000 description 11
- 150000008052 alkyl sulfonates Chemical class 0.000 description 7
- 230000001804 emulsifying effect Effects 0.000 description 7
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- FKKAGFLIPSSCHT-UHFFFAOYSA-N 1-dodecoxydodecane;sulfuric acid Chemical compound OS(O)(=O)=O.CCCCCCCCCCCCOCCCCCCCCCCCC FKKAGFLIPSSCHT-UHFFFAOYSA-N 0.000 description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- -1 alkyl ether sulfate Chemical class 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 229940043264 dodecyl sulfate Drugs 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 3
- 229920001944 Plastisol Polymers 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 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 3
- 239000002666 chemical blowing agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 239000004999 plastisol Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000001694 spray drying Methods 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 2
- 239000012928 buffer substance Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- CSMFSDCPJHNZRY-UHFFFAOYSA-N sulfuric acid monodecyl ester Natural products CCCCCCCCCCOS(O)(=O)=O CSMFSDCPJHNZRY-UHFFFAOYSA-N 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010626 work up procedure Methods 0.000 description 2
- QTDIEDOANJISNP-UHFFFAOYSA-N 2-dodecoxyethyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOCCOS(O)(=O)=O QTDIEDOANJISNP-UHFFFAOYSA-N 0.000 description 1
- 239000004160 Ammonium persulphate Substances 0.000 description 1
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004159 Potassium persulphate Substances 0.000 description 1
- HVWGGPRWKSHASF-UHFFFAOYSA-N Sulfuric acid, monooctadecyl ester Chemical compound CCCCCCCCCCCCCCCCCCOS(O)(=O)=O HVWGGPRWKSHASF-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 235000019395 ammonium persulphate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- CSMFSDCPJHNZRY-UHFFFAOYSA-M decyl sulfate Chemical compound CCCCCCCCCCOS([O-])(=O)=O CSMFSDCPJHNZRY-UHFFFAOYSA-M 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 235000019394 potassium persulphate Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- URLJMZWTXZTZRR-UHFFFAOYSA-N sodium myristyl sulfate Chemical compound CCCCCCCCCCCCCCOS(O)(=O)=O URLJMZWTXZTZRR-UHFFFAOYSA-N 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
-
- 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
- C08F14/00—Homopolymers and 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 a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of 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 a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of 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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Priority Applications (15)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2428706A DE2428706C3 (de) | 1974-06-14 | 1974-06-14 | Verfahren zur Herstellung von Polyvinylchlorid und dessen Verwendung zur Herstellung von Weichschaumstoffen |
| YU0841/75A YU37480B (en) | 1974-06-14 | 1975-04-02 | Process for obtaining expandable polyvinyl chloride |
| GB19594/75A GB1498467A (en) | 1974-06-14 | 1975-05-09 | Process for the manufacture of polyvinyl chloride and of soft foamed plastics material therefrom |
| DK247475A DK145677C (da) | 1974-06-14 | 1975-06-03 | Anvendelse af polyvinylchlorid til fremstilling af bloede skumstoffer |
| DK247475A DK247475A (da) | 1974-06-14 | 1975-06-03 | Fremgangsmade til fremstilling af polyvinylchlorid |
| NO752067A NO143404C (no) | 1974-06-14 | 1975-06-11 | Anvendelse av polyvinylklorid fremstilt paa en bestemt maate til fremstilling av myke skumstoffer |
| IT50006/75A IT1044401B (it) | 1974-06-14 | 1975-06-11 | Procedimento per produrre polivinil cloruro ed espansi morbidi ottenuti da esso |
| FR7518210A FR2274635A1 (fr) | 1974-06-14 | 1975-06-11 | Procede de preparation de chlorure de polyvinyle et utilisation de celui-ci pour la fabrication de mousses molles |
| PL1975181160A PL105053B1 (pl) | 1974-06-14 | 1975-06-12 | Sposob wytwarzania nadajacego sie do tworzyw piankowych polichlorku winylu |
| BR4761/75D BR7504044A (pt) | 1974-06-14 | 1975-06-12 | Processo para a fabricacao de cloreto de polivinila e seu uso para a fabricacao de substancias espumosas macias |
| SE7506834A SE422688B (sv) | 1974-06-14 | 1975-06-13 | Anvendning av polyvinylklorid for framstellning av mjuka skumplaster enligt bestrykningsforfarande med hjelp av kemiska jesmedel |
| AT454575A AT338522B (de) | 1974-06-14 | 1975-06-13 | Verfahren zur herstellung von polyvinylchlorid |
| BE157317A BE830223A (fr) | 1974-06-14 | 1975-06-13 | Procede de production de poly(chlorure de vinyle) et son utilisation pour la production de matieres expansees souples |
| JP50071828A JPS588407B2 (ja) | 1974-06-14 | 1975-06-13 | ポリエンカビニルノセイホウ |
| US05/867,570 US4218553A (en) | 1974-06-14 | 1978-01-06 | Polymerization of vinyl chloride with Sx Oy containing emulsifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2428706A DE2428706C3 (de) | 1974-06-14 | 1974-06-14 | Verfahren zur Herstellung von Polyvinylchlorid und dessen Verwendung zur Herstellung von Weichschaumstoffen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2428706A1 DE2428706A1 (de) | 1976-01-08 |
| DE2428706B2 DE2428706B2 (de) | 1979-10-04 |
| DE2428706C3 true DE2428706C3 (de) | 1980-06-12 |
Family
ID=5918108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2428706A Expired DE2428706C3 (de) | 1974-06-14 | 1974-06-14 | Verfahren zur Herstellung von Polyvinylchlorid und dessen Verwendung zur Herstellung von Weichschaumstoffen |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS588407B2 (enExample) |
| AT (1) | AT338522B (enExample) |
| BE (1) | BE830223A (enExample) |
| BR (1) | BR7504044A (enExample) |
| DE (1) | DE2428706C3 (enExample) |
| DK (2) | DK247475A (enExample) |
| FR (1) | FR2274635A1 (enExample) |
| GB (1) | GB1498467A (enExample) |
| IT (1) | IT1044401B (enExample) |
| NO (1) | NO143404C (enExample) |
| PL (1) | PL105053B1 (enExample) |
| SE (1) | SE422688B (enExample) |
| YU (1) | YU37480B (enExample) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1860122A1 (en) * | 2006-05-24 | 2007-11-28 | Rhodia Recherches et Technologies | Process of making aqueous dispersions of polymers, emulsions polymers and use thereof |
-
1974
- 1974-06-14 DE DE2428706A patent/DE2428706C3/de not_active Expired
-
1975
- 1975-04-02 YU YU0841/75A patent/YU37480B/xx unknown
- 1975-05-09 GB GB19594/75A patent/GB1498467A/en not_active Expired
- 1975-06-03 DK DK247475A patent/DK247475A/da unknown
- 1975-06-03 DK DK247475A patent/DK145677C/da active
- 1975-06-11 IT IT50006/75A patent/IT1044401B/it active
- 1975-06-11 FR FR7518210A patent/FR2274635A1/fr active Granted
- 1975-06-11 NO NO752067A patent/NO143404C/no unknown
- 1975-06-12 PL PL1975181160A patent/PL105053B1/pl unknown
- 1975-06-12 BR BR4761/75D patent/BR7504044A/pt unknown
- 1975-06-13 BE BE157317A patent/BE830223A/xx not_active IP Right Cessation
- 1975-06-13 SE SE7506834A patent/SE422688B/xx unknown
- 1975-06-13 AT AT454575A patent/AT338522B/de not_active IP Right Cessation
- 1975-06-13 JP JP50071828A patent/JPS588407B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO752067L (enExample) | 1975-12-16 |
| BE830223A (fr) | 1975-10-01 |
| SE7506834L (sv) | 1975-12-15 |
| NO143404C (no) | 1981-02-04 |
| FR2274635A1 (fr) | 1976-01-09 |
| DK145677C (da) | 1983-07-18 |
| IT1044401B (it) | 1980-03-20 |
| YU37480B (en) | 1984-08-31 |
| JPS5111886A (enExample) | 1976-01-30 |
| AT338522B (de) | 1977-08-25 |
| DK145677B (da) | 1983-01-24 |
| BR7504044A (pt) | 1976-07-06 |
| NO143404B (no) | 1980-10-27 |
| ATA454575A (de) | 1976-12-15 |
| DK247475A (da) | 1975-12-15 |
| DE2428706A1 (de) | 1976-01-08 |
| GB1498467A (en) | 1978-01-18 |
| SE422688B (sv) | 1982-03-22 |
| PL105053B1 (pl) | 1979-09-29 |
| JPS588407B2 (ja) | 1983-02-16 |
| FR2274635B1 (enExample) | 1980-04-04 |
| YU84175A (en) | 1983-04-27 |
| DE2428706B2 (de) | 1979-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: HUELS AG, 4370 MARL, DE |