FI56997C - Papper med foerbaettrad torrhaollfasthet - Google Patents
Papper med foerbaettrad torrhaollfasthet Download PDFInfo
- Publication number
- FI56997C FI56997C FI3644/72A FI364472A FI56997C FI 56997 C FI56997 C FI 56997C FI 3644/72 A FI3644/72 A FI 3644/72A FI 364472 A FI364472 A FI 364472A FI 56997 C FI56997 C FI 56997C
- Authority
- FI
- Finland
- Prior art keywords
- acrylamide
- units
- polymer
- latex
- weight
- Prior art date
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 71
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 13
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 12
- 229920001577 copolymer Polymers 0.000 claims abstract description 9
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 49
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000007900 aqueous suspension Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 229920000126 latex Polymers 0.000 abstract description 73
- 239000004816 latex Substances 0.000 abstract description 55
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 48
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 abstract description 22
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract description 6
- 150000001412 amines Chemical class 0.000 abstract description 6
- 125000002091 cationic group Chemical group 0.000 abstract description 5
- 239000000178 monomer Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007334 copolymerization reaction Methods 0.000 abstract description 4
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 abstract description 3
- 125000000129 anionic group Chemical group 0.000 abstract description 3
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 3
- SBYMUDUGTIKLCR-UHFFFAOYSA-N 2-chloroethenylbenzene Chemical compound ClC=CC1=CC=CC=C1 SBYMUDUGTIKLCR-UHFFFAOYSA-N 0.000 abstract description 2
- IWTYTFSSTWXZFU-UHFFFAOYSA-N 3-chloroprop-1-enylbenzene Chemical compound ClCC=CC1=CC=CC=C1 IWTYTFSSTWXZFU-UHFFFAOYSA-N 0.000 abstract description 2
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 abstract description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 abstract description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract description 2
- 125000004202 aminomethyl group Chemical group [H]N([H])C([H])([H])* 0.000 abstract description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 abstract description 2
- 239000011976 maleic acid Substances 0.000 abstract description 2
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 abstract description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 abstract description 2
- 229920003176 water-insoluble polymer Polymers 0.000 abstract description 2
- 229920006322 acrylamide copolymer Polymers 0.000 abstract 1
- 150000003926 acrylamides Chemical class 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 19
- 229940037003 alum Drugs 0.000 description 16
- 229920005989 resin Polymers 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 239000000203 mixture Substances 0.000 description 10
- 239000003292 glue Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 239000012744 reinforcing agent Substances 0.000 description 7
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 239000000344 soap Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 4
- IKZUTTBMFIUNNV-UHFFFAOYSA-N formaldehyde N-methylmethanamine Chemical compound C=O.CNC IKZUTTBMFIUNNV-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 150000001408 amides Chemical group 0.000 description 3
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 3
- 125000005265 dialkylamine group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003995 emulsifying agent Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 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
- 238000006683 Mannich reaction Methods 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- KMNONFBDPKFXOA-UHFFFAOYSA-N prop-2-enamide;styrene Chemical compound NC(=O)C=C.C=CC1=CC=CC=C1 KMNONFBDPKFXOA-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229940100121 revina Drugs 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- UELAIMNOXLAYRW-UHFFFAOYSA-M sodium;1,4-dicyclohexyloxy-1,4-dioxobutane-2-sulfonate Chemical compound [Na+].C1CCCCC1OC(=O)C(S(=O)(=O)[O-])CC(=O)OC1CCCCC1 UELAIMNOXLAYRW-UHFFFAOYSA-M 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- -1 vinyl compound Chemical class 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
-
- 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
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
-
- 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
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21162471 | 1971-12-23 | ||
| US211624A US3875097A (en) | 1971-12-23 | 1971-12-23 | Ionic vinylamide polymer latex and manufacture of paper therewith |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI56997B FI56997B (fi) | 1980-01-31 |
| FI56997C true FI56997C (fi) | 1980-05-12 |
Family
ID=22787699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI3644/72A FI56997C (fi) | 1971-12-23 | 1972-12-22 | Papper med foerbaettrad torrhaollfasthet |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3875097A (cs) |
| JP (1) | JPS5618717B2 (cs) |
| BR (1) | BR7209083D0 (cs) |
| CA (1) | CA991773A (cs) |
| DE (1) | DE2263089C3 (cs) |
| FI (1) | FI56997C (cs) |
| FR (1) | FR2170533A5 (cs) |
| GB (1) | GB1385809A (cs) |
| SE (1) | SE390180B (cs) |
| ZA (1) | ZA729046B (cs) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093542A (en) * | 1973-07-04 | 1978-06-06 | Chemische Fabrik Stockhausen & Cie | Flocculating agent comprising water-in-oil emulsion of H-active polymer carrying formaldehyde and amine radicals |
| DE2520028C3 (de) * | 1975-05-06 | 1987-07-30 | Chemische Fabrik Stockhausen GmbH, 4150 Krefeld | Flüssige, pumpfähige, stabile Dispersionen vom Typ Wasser-in-Öl und ihre Verwendung |
| US4179370A (en) * | 1974-07-03 | 1979-12-18 | Chemische Fabrik Stockhause & Cie | Flocculating agent comprising water-in-oil emulsion of stabilizer plus NH-active polymer carrying formaldehyde and amine radicals |
| US4113685A (en) * | 1975-01-02 | 1978-09-12 | Chemische Fabrik Stockhausen & Cie | Flocculating agent comprising water-in-oil emulsion of stabilizer plus NH-active polymer carrying formaldehyde and amine radicals |
| CA1101158A (en) * | 1976-10-26 | 1981-05-19 | John A. Sedlak | Strengthening agents |
| DE2741753B1 (de) * | 1977-09-16 | 1979-03-22 | Basf Ag | Verfahren zur Herstellung von Papier mit hoher Trockenfestigkeit und niedriger Nassfestigkeit |
| JPS54132693A (en) * | 1978-04-05 | 1979-10-15 | Sumitomo Chem Co Ltd | Paper strength-reinforcing resin emulsion |
| JPS5584498A (en) * | 1978-12-20 | 1980-06-25 | Rei Tech Inc | Paper making for enhancing paper quality |
| JPS57143600A (en) * | 1981-02-26 | 1982-09-04 | Arakawa Rinsan Kagaku Kogyo Kk | Paper reinforcing agent |
| FR2524828B1 (fr) * | 1982-04-09 | 1986-01-10 | Jeand Heurs Papeteries | Nouveaux produits pour les revetements, pour l'isolation et pour l'emballage, a base de dechets industriels et notamment de boues de papeterie et procede pour leur obtention |
| US4510019A (en) * | 1981-05-12 | 1985-04-09 | Papeteries De Jeand'heurs | Latex containing papers |
| US5338406A (en) * | 1988-10-03 | 1994-08-16 | Hercules Incorporated | Dry strength additive for paper |
| USRE37037E1 (en) | 1988-12-19 | 2001-01-30 | Cytec Technology Corp. | Emulsified mannich acrylamide polymers |
| US5723548A (en) * | 1988-12-19 | 1998-03-03 | Cytec Technology Corp. | Emulsified mannich acrylamide polymers |
| US5037881A (en) * | 1989-10-30 | 1991-08-06 | American Cyanamid Company | Emulsified mannich acrylamide polymers |
| US5338407A (en) * | 1991-12-23 | 1994-08-16 | Hercules Incorporated | Enhancement of paper dry strength by anionic and cationic guar combination |
| DE4403480A1 (de) * | 1994-02-04 | 1995-08-10 | Basf Ag | Bindemittelmischungen für Papierstreichmassen |
| US6228217B1 (en) | 1995-01-13 | 2001-05-08 | Hercules Incorporated | Strength of paper made from pulp containing surface active, carboxyl compounds |
| CA2238380A1 (en) * | 1996-01-05 | 1997-07-17 | Michael P. Merkel | Textile latex |
| US6755938B2 (en) * | 2001-08-20 | 2004-06-29 | Armstrong World Industries, Inc. | Fibrous sheet binders |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2890978A (en) * | 1957-10-02 | 1959-06-16 | American Cyanamid Co | Paper of high dry strength and low wet strength |
| US3323979A (en) * | 1964-09-24 | 1967-06-06 | Dow Chemical Co | Method of improving the drainage rate in forming paper by incorporating a reaction product of polyacrylamide, formaldehyde and dialkylamine in the furnish |
| US3539535A (en) * | 1968-11-04 | 1970-11-10 | Dow Chemical Co | Cationic carbamoyl polymers |
-
1971
- 1971-12-23 US US211624A patent/US3875097A/en not_active Expired - Lifetime
-
1972
- 1972-12-21 FR FR7245740A patent/FR2170533A5/fr not_active Expired
- 1972-12-21 ZA ZA729046A patent/ZA729046B/xx unknown
- 1972-12-22 CA CA159,805A patent/CA991773A/en not_active Expired
- 1972-12-22 SE SE7216954A patent/SE390180B/xx unknown
- 1972-12-22 FI FI3644/72A patent/FI56997C/fi active
- 1972-12-22 DE DE2263089A patent/DE2263089C3/de not_active Expired
- 1972-12-22 BR BR9083/72A patent/BR7209083D0/pt unknown
- 1972-12-22 GB GB5954672A patent/GB1385809A/en not_active Expired
- 1972-12-23 JP JP734410A patent/JPS5618717B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE390180B (sv) | 1976-12-06 |
| JPS5618717B2 (cs) | 1981-05-01 |
| DE2263089B2 (de) | 1979-09-27 |
| ZA729046B (en) | 1973-09-26 |
| DE2263089A1 (de) | 1973-06-28 |
| FI56997B (fi) | 1980-01-31 |
| BR7209083D0 (pt) | 1973-09-25 |
| JPS4872405A (cs) | 1973-09-29 |
| US3875097A (en) | 1975-04-01 |
| DE2263089C3 (de) | 1980-07-03 |
| FR2170533A5 (cs) | 1973-09-14 |
| GB1385809A (en) | 1975-02-26 |
| CA991773A (en) | 1976-06-22 |
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