DE3050990C2 - Farbstoffzusammensetzung und Verfahren zu dessen Herstellung - Google Patents
Farbstoffzusammensetzung und Verfahren zu dessen HerstellungInfo
- Publication number
- DE3050990C2 DE3050990C2 DE3050990A DE3050990A DE3050990C2 DE 3050990 C2 DE3050990 C2 DE 3050990C2 DE 3050990 A DE3050990 A DE 3050990A DE 3050990 A DE3050990 A DE 3050990A DE 3050990 C2 DE3050990 C2 DE 3050990C2
- Authority
- DE
- Germany
- Prior art keywords
- dye
- lignin
- dispersant
- lignosulfonate
- dispersants
- 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
- 239000000203 mixture Substances 0.000 title claims description 32
- 238000000034 method Methods 0.000 title description 16
- 230000008569 process Effects 0.000 title description 9
- 238000002360 preparation method Methods 0.000 title description 2
- 229920001732 Lignosulfonate Polymers 0.000 claims description 43
- 229920005610 lignin Polymers 0.000 claims description 32
- -1 hydroxylbenzyl alcohol compound Chemical class 0.000 claims description 24
- 235000019357 lignosulphonate Nutrition 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 125000001741 organic sulfur group Chemical group 0.000 claims description 4
- 239000000975 dye Substances 0.000 description 72
- 239000002270 dispersing agent Substances 0.000 description 67
- 239000000047 product Substances 0.000 description 41
- 239000007787 solid Substances 0.000 description 25
- WVDDGKGOMKODPV-UHFFFAOYSA-N hydroxymethyl benzene Natural products OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 21
- 238000006722 reduction reaction Methods 0.000 description 18
- 238000002845 discoloration Methods 0.000 description 16
- 230000009467 reduction Effects 0.000 description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 15
- 239000000987 azo dye Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000000227 grinding Methods 0.000 description 13
- 239000000123 paper Substances 0.000 description 13
- 238000001914 filtration Methods 0.000 description 12
- 239000006185 dispersion Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 229920000742 Cotton Polymers 0.000 description 9
- 238000003801 milling Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 235000019445 benzyl alcohol Nutrition 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 8
- 239000004744 fabric Substances 0.000 description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 235000000346 sugar Nutrition 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000004043 dyeing Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000984 vat dye Substances 0.000 description 4
- COCWIIAFGQLMGS-UHFFFAOYSA-N 3-[n-ethyl-3-methyl-4-[(5-nitro-1,3-thiazol-2-yl)diazenyl]anilino]propane-1,2-diol Chemical compound CC1=CC(N(CC(O)CO)CC)=CC=C1N=NC1=NC=C([N+]([O-])=O)S1 COCWIIAFGQLMGS-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000000986 disperse dye Substances 0.000 description 3
- 239000002612 dispersion medium Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 150000008163 sugars Chemical class 0.000 description 3
- 238000006277 sulfonation reaction Methods 0.000 description 3
- NLXFWUZKOOWWFD-UHFFFAOYSA-N 1-(2-hydroxyethylamino)-4-(methylamino)anthracene-9,10-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C(NCCO)=CC=C2NC NLXFWUZKOOWWFD-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- 229920005552 sodium lignosulfonate Polymers 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- FDTLQXNAPKJJAM-UHFFFAOYSA-N 2-(3-hydroxyquinolin-2-yl)indene-1,3-dione Chemical compound O=C1C2=CC=CC=C2C(=O)C1C1=NC2=CC=CC=C2C=C1O FDTLQXNAPKJJAM-UHFFFAOYSA-N 0.000 description 1
- HXXLWTPFYWMBSC-UHFFFAOYSA-N 2-[3-chloro-4-[(2,6-dichloro-4-nitrophenyl)diazenyl]-n-(2-hydroxyethyl)anilino]ethanol Chemical compound ClC1=CC(N(CCO)CCO)=CC=C1N=NC1=C(Cl)C=C([N+]([O-])=O)C=C1Cl HXXLWTPFYWMBSC-UHFFFAOYSA-N 0.000 description 1
- VGKYEIFFSOPYEW-UHFFFAOYSA-N 2-methyl-4-[(4-phenyldiazenylphenyl)diazenyl]phenol Chemical compound Cc1cc(ccc1O)N=Nc1ccc(cc1)N=Nc1ccccc1 VGKYEIFFSOPYEW-UHFFFAOYSA-N 0.000 description 1
- 229910001369 Brass Inorganic materials 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
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002419 base digestion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000011363 dried mixture Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 229920005611 kraft lignin Polymers 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/0086—Non common dispersing agents anionic dispersing agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
- D06P1/50—Derivatives of cellulose
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Dispersion Chemistry (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Coloring (AREA)
- Compounds Of Unknown Constitution (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/123,696 US4308203A (en) | 1980-02-22 | 1980-02-22 | Sulfonated lignin dispersants and dyestuffs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3050990A1 DE3050990A1 (enrdf_load_stackoverflow) | 1985-07-04 |
| DE3050990C2 true DE3050990C2 (de) | 1986-11-06 |
Family
ID=22410314
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3050990A Expired DE3050990C2 (de) | 1980-02-22 | 1980-08-11 | Farbstoffzusammensetzung und Verfahren zu dessen Herstellung |
| DE3030315A Expired DE3030315C2 (de) | 1980-02-22 | 1980-08-11 | Ligninaddukt und Verfahren zu seiner Herstellung |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3030315A Expired DE3030315C2 (de) | 1980-02-22 | 1980-08-11 | Ligninaddukt und Verfahren zu seiner Herstellung |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS6045931B2 (enrdf_load_stackoverflow) |
| CH (1) | CH650489A5 (enrdf_load_stackoverflow) |
| DE (2) | DE3050990C2 (enrdf_load_stackoverflow) |
| FI (1) | FI65791C (enrdf_load_stackoverflow) |
| FR (1) | FR2476651A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2069996B (enrdf_load_stackoverflow) |
| IT (1) | IT1142318B (enrdf_load_stackoverflow) |
| NO (2) | NO153732C (enrdf_load_stackoverflow) |
| SE (1) | SE452768B (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190482A (ja) * | 1984-03-05 | 1985-09-27 | リ−ド・リグニン・インコ−ポレ−テツド | リグニンアダクト組成物およびその製法、用途 |
| WO2019039609A1 (ja) * | 2017-08-24 | 2019-02-28 | 日本製紙株式会社 | リグニン誘導体化合物及びその用途 |
| CN116621885B (zh) * | 2023-05-23 | 2024-04-19 | 宁夏中盛新科技有限公司 | 2-氨基-4-乙酰氨基苯甲醚生产废水的资源化处理方法 |
-
1980
- 1980-07-23 SE SE8005328A patent/SE452768B/sv not_active IP Right Cessation
- 1980-07-24 NO NO802235A patent/NO153732C/no unknown
- 1980-08-11 DE DE3050990A patent/DE3050990C2/de not_active Expired
- 1980-08-11 DE DE3030315A patent/DE3030315C2/de not_active Expired
- 1980-09-09 FI FI802819A patent/FI65791C/fi not_active IP Right Cessation
- 1980-09-16 JP JP55128468A patent/JPS6045931B2/ja not_active Expired
- 1980-10-31 GB GB8035153A patent/GB2069996B/en not_active Expired
- 1980-12-09 FR FR8026090A patent/FR2476651A1/fr active Granted
-
1981
- 1981-02-20 IT IT47852/81A patent/IT1142318B/it active
- 1981-02-20 CH CH1162/81A patent/CH650489A5/de not_active IP Right Cessation
- 1981-03-13 NO NO81810875A patent/NO154967C/no unknown
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2476651A1 (fr) | 1981-08-28 |
| NO810875L (no) | 1981-08-24 |
| CH650489A5 (de) | 1985-07-31 |
| DE3050990A1 (enrdf_load_stackoverflow) | 1985-07-04 |
| SE8005328L (sv) | 1981-08-23 |
| NO802235L (no) | 1981-08-24 |
| FI802819A7 (fi) | 1981-08-23 |
| NO154967B (no) | 1986-10-13 |
| IT8147852A0 (it) | 1981-02-20 |
| NO153732B (no) | 1986-02-03 |
| FR2476651B1 (enrdf_load_stackoverflow) | 1983-05-20 |
| DE3030315A1 (de) | 1981-09-17 |
| FI65791B (fi) | 1984-03-30 |
| GB2069996A (en) | 1981-09-03 |
| JPS56118093A (en) | 1981-09-16 |
| JPS6045931B2 (ja) | 1985-10-12 |
| NO153732C (no) | 1986-05-14 |
| DE3030315C2 (de) | 1985-11-21 |
| SE452768B (sv) | 1987-12-14 |
| GB2069996B (en) | 1983-11-16 |
| FI65791C (fi) | 1984-07-10 |
| NO154967C (no) | 1987-01-21 |
| IT1142318B (it) | 1986-10-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 3030315 |
|
| 8110 | Request for examination paragraph 44 | ||
| 8181 | Inventor (new situation) |
Free format text: LIN, STEPHEN Y., WAUSAU, WIS., US |
|
| AC | Divided out of |
Ref country code: DE Ref document number: 3030315 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |