GB810828A - Improvements in or relating to a method of and means for manufacturing paper - Google Patents
Improvements in or relating to a method of and means for manufacturing paperInfo
- Publication number
- GB810828A GB810828A GB19406/55A GB1940655A GB810828A GB 810828 A GB810828 A GB 810828A GB 19406/55 A GB19406/55 A GB 19406/55A GB 1940655 A GB1940655 A GB 1940655A GB 810828 A GB810828 A GB 810828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dimer
- paper
- ketene
- coated
- diner
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 239000000539 dimer Substances 0.000 abstract 5
- 239000012764 mineral filler Substances 0.000 abstract 4
- 239000002245 particle Substances 0.000 abstract 4
- CCGKOQOJPYTBIH-UHFFFAOYSA-N ethenone Chemical compound C=C=O CCGKOQOJPYTBIH-UHFFFAOYSA-N 0.000 abstract 3
- 229920000715 Mucilage Polymers 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 229920002472 Starch Polymers 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000853 adhesive Substances 0.000 abstract 2
- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 abstract 2
- 235000021313 oleic acid Nutrition 0.000 abstract 2
- 239000008107 starch Substances 0.000 abstract 2
- 235000019698 starch Nutrition 0.000 abstract 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 abstract 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 abstract 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 abstract 1
- 244000020998 Acacia farnesiana Species 0.000 abstract 1
- 235000003074 Acacia farnesiana Nutrition 0.000 abstract 1
- 240000006304 Brachychiton acerifolius Species 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- 240000008886 Ceratonia siliqua Species 0.000 abstract 1
- 235000017764 Cercidium floridum Nutrition 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 abstract 1
- 229920002907 Guar gum Polymers 0.000 abstract 1
- 229920000569 Gum karaya Polymers 0.000 abstract 1
- 241000522164 Gymnocladus dioicus Species 0.000 abstract 1
- 229920000161 Locust bean gum Polymers 0.000 abstract 1
- 240000005338 Melastoma malabathricum Species 0.000 abstract 1
- 239000005642 Oleic acid Substances 0.000 abstract 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 abstract 1
- 241000596451 Parkinsonia Species 0.000 abstract 1
- 229920001214 Polysorbate 60 Polymers 0.000 abstract 1
- 241001494501 Prosopis <angiosperm> Species 0.000 abstract 1
- 235000001560 Prosopis chilensis Nutrition 0.000 abstract 1
- 235000014460 Prosopis juliflora var juliflora Nutrition 0.000 abstract 1
- 239000004147 Sorbitan trioleate Substances 0.000 abstract 1
- PRXRUNOAOLTIEF-ADSICKODSA-N Sorbitan trioleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](OC(=O)CCCCCCC\C=C/CCCCCCCC)[C@H]1OC[C@H](O)[C@H]1OC(=O)CCCCCCC\C=C/CCCCCCCC PRXRUNOAOLTIEF-ADSICKODSA-N 0.000 abstract 1
- 235000021355 Stearic acid Nutrition 0.000 abstract 1
- 241000934878 Sterculia Species 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 229940037003 alum Drugs 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 229910052570 clay Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 125000002704 decyl 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])* 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000003292 glue Substances 0.000 abstract 1
- 239000000665 guar gum Substances 0.000 abstract 1
- 235000010417 guar gum Nutrition 0.000 abstract 1
- 229960002154 guar gum Drugs 0.000 abstract 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 abstract 1
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000000231 karaya gum Substances 0.000 abstract 1
- 235000010494 karaya gum Nutrition 0.000 abstract 1
- 229940039371 karaya gum Drugs 0.000 abstract 1
- 239000000711 locust bean gum Substances 0.000 abstract 1
- 235000010420 locust bean gum Nutrition 0.000 abstract 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 1
- 239000001095 magnesium carbonate Substances 0.000 abstract 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 125000001421 myristyl group Chemical group [H]C([*])([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])C([H])([H])[H] 0.000 abstract 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract 1
- 125000000913 palmityl group Chemical group [H]C([*])([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])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 239000005871 repellent Substances 0.000 abstract 1
- 235000011127 sodium aluminium sulphate Nutrition 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 1
- 235000019337 sorbitan trioleate Nutrition 0.000 abstract 1
- 229960000391 sorbitan trioleate Drugs 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
- 239000004408 titanium dioxide Substances 0.000 abstract 1
- -1 unsaturated alkyl ketene dimers Chemical class 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/006—Pulping cellulose-containing materials with compounds not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/02—Tanks
- B64D37/06—Constructional adaptations thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/69—Water-insoluble compounds, e.g. fillers, pigments modified, e.g. by association with other compositions prior to incorporation in the pulp or paper
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Paper (AREA)
- Dental Preparations (AREA)
Abstract
810,828. Sized, mineral-filled paper. WARREN CO., S. D. July 5, 1955 [Aug. 11, 1954], No.19406/55. Class 96. In making sized, mineral-filled paper, finely divided particles of a mineral filler are mixed with an aqueous emulsion or dispersion of a water-repellent dimer of a ketene having a hydrocarbon group containing 6 to 20 carbon atoms so that the particles are partially or totally coated with the dimer. The coated particles are then mixed with an aqueous suspension of cellulosic fibres, e.g. containing sodium carbonate or alum, starch animal glue or karaya gum, and the resulting pulp is made into a web. During or after drying of the paper, some of the diner may migrate to the cellulosic fibres. The diner may be an aliphatic ketene diner, e.g. hexyl, decyl, tetradecyl, hexadecyl or eicosaryl ketene diner or a ketene dimer derived from oleic acid or a mixture of oleic and stearic acids. Polyoxyethylene sorbitan trioleate may be used to emulsify the dimer. The mineral filler may be calcium or magnesium carbonate, talc, titanium dioxide or clay. The amount of coated filler in the paper may be between 1 and 50 per cent of its air-dry weight. The amount of dimer in the paper is, preferably, at least 0.1 per cent of the air-dry weight of the cellulosic fibres and the dimer in the paper, but 0.05 per cent has been found adequate in the case of unsaturated alkyl ketene dimers. The particles of the mineral filler, after being coated with the ketene dimer, and before being added to the suspension of cellulosic fibres, may be partially or totally coated with an aqueous dispersion of one or more mannogalactans, e.g. a plant mucilage containing mannogalactans, and, if desired, starch. Suitable mucilages are locust bean and guar gum and those obtained from the flame tree, the Indian rhododendron, the huisache shrub, the Kentucky coffee tree, the mesquite and the palo verde. The air-dry weight of the mannogalactan coating may be 0.5 per cent of that of the mineral filler. Specifications 522,204, 778,791 and U.S.A. Specification 2,627,477 are referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44926154A | 1954-08-11 | 1954-08-11 | |
| US515238A US2949397A (en) | 1954-08-11 | 1955-06-13 | Mineral filled paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB810828A true GB810828A (en) | 1959-03-25 |
Family
ID=27035649
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19096/55A Expired GB778791A (en) | 1954-08-11 | 1955-07-01 | Improvements in or relating to a method of and means for manufacturing paper |
| GB19406/55A Expired GB810828A (en) | 1954-08-11 | 1955-07-05 | Improvements in or relating to a method of and means for manufacturing paper |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19096/55A Expired GB778791A (en) | 1954-08-11 | 1955-07-01 | Improvements in or relating to a method of and means for manufacturing paper |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US2949397A (en) |
| BE (2) | BE540485A (en) |
| CH (2) | CH349881A (en) |
| DE (2) | DE1067296B (en) |
| DK (1) | DK88232C (en) |
| FR (2) | FR1139590A (en) |
| GB (2) | GB778791A (en) |
| NL (2) | NL113100C (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1151893B (en) * | 1961-08-25 | 1963-07-25 | Pigment Chemie G M B H | Process for the production of a white pigment for paper and cardboard production |
| BE639625A (en) * | 1962-11-08 | |||
| GB1025960A (en) * | 1963-07-10 | 1966-04-14 | British Titan Products | Coated titanium dioxide pigments |
| US3275460A (en) * | 1964-11-23 | 1966-09-27 | Foseco Int | Mold dressings for use in foundry practice |
| US4115187A (en) * | 1970-03-31 | 1978-09-19 | Welwyn Hall Research Association | Agglomerated fillers used in paper |
| GB1347071A (en) * | 1971-07-01 | 1974-02-13 | Starch Products Ltd | Paper fillers |
| US4174998A (en) * | 1974-11-15 | 1979-11-20 | The Associated Portland Cement Manufacturers Limited | Preflocculated filler compositions for use in the manufacture of paper |
| SE7708115L (en) * | 1976-07-14 | 1978-01-15 | English Clays Lovering Pochin | PROCEDURE FOR PREPARING PAPER OR CARDBOARD |
| EP0060291B1 (en) * | 1980-09-19 | 1986-06-04 | SUNDEN, Olof | Paper making process utilizing an amphoteric mucous structure as binder |
| SE8107078L (en) * | 1981-11-27 | 1983-05-28 | Eka Ab | PAPER MANUFACTURING PROCEDURE |
| JPS60219238A (en) * | 1984-04-14 | 1985-11-01 | Hayashibara Biochem Lab Inc | Formed product containing slowly disintegrating pullulan and its production |
| GB8531558D0 (en) * | 1985-12-21 | 1986-02-05 | Wiggins Teape Group Ltd | Loaded paper |
| US5061346A (en) * | 1988-09-02 | 1991-10-29 | Betz Paperchem, Inc. | Papermaking using cationic starch and carboxymethyl cellulose or its additionally substituted derivatives |
| US5454864A (en) * | 1992-02-12 | 1995-10-03 | Whalen-Shaw; Michael | Layered composite pigments and methods of making same |
| US5411639A (en) * | 1993-10-15 | 1995-05-02 | Westvaco Corporation | Process for enhancing sizing efficiency in filled papers |
| US5458679A (en) * | 1993-12-10 | 1995-10-17 | Minerals Technologies, Inc. | Treatment of inorganic filler material for paper with polysaccharides |
| DE69815396T3 (en) * | 1998-01-16 | 2007-05-16 | Unilever N.V. | FOR BINDING CELLULOSE-CAPABLE POLYSACCHARIDE CONJUGATE |
| EP0930334A1 (en) * | 1998-01-16 | 1999-07-21 | Quest International B.V. | Polysaccharide conjugate capable of binding cellulose |
| EP1593376A1 (en) * | 2004-05-04 | 2005-11-09 | Warner-Lambert Company LLC | Improved pullulan capsules |
| US9181657B2 (en) * | 2007-09-12 | 2015-11-10 | Nalco Company | Method of increasing paper strength by using natural gums and dry strength agent in the wet end |
| US8088250B2 (en) | 2008-11-26 | 2012-01-03 | Nalco Company | Method of increasing filler content in papermaking |
| US9752283B2 (en) | 2007-09-12 | 2017-09-05 | Ecolab Usa Inc. | Anionic preflocculation of fillers used in papermaking |
| DK2565237T3 (en) | 2011-08-31 | 2015-06-08 | Omya Int Ag | A process for the preparation of self-binding pigmentpartikelsuspensioner |
| US8821689B1 (en) | 2013-01-25 | 2014-09-02 | Penford Products Co. | Starch-biogum compositions |
| FR3012149B1 (en) * | 2013-10-23 | 2016-07-22 | Centre Technique De L'industrie Des Papiers Cartons Et Celluloses | COMPOSITE PARTICLES, METHOD OF PREPARATION AND USE IN THE MANUFACTURE OF PAPER |
| FR3059345B1 (en) * | 2016-11-29 | 2020-06-12 | Centre Technique De L'industrie, Des Papiers, Cartons Et Celluloses | BINDING COMPOSITION BASED ON VEGETABLE FIBERS AND MINERAL FILLERS, ITS PREPARATION AND ITS USE |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US566497A (en) * | 1896-08-25 | Las castle | ||
| US1448847A (en) * | 1922-11-29 | 1923-03-20 | T M Duche & Sons | Sizing composition |
| FR684879A (en) * | 1929-02-27 | 1930-07-02 | A method of making combustion cigarette paper free of unpleasant and caustic odor | |
| US1901382A (en) * | 1931-04-06 | 1933-03-14 | Richardson Co | Fibrous composition containing filler and binder substances and process of making them |
| US2322185A (en) * | 1940-01-22 | 1943-06-15 | Warren S D Co | Process for making paper |
| US2287153A (en) * | 1940-05-11 | 1942-06-23 | Burgess P Wallace | Foundry facing |
| US2325051A (en) * | 1940-05-31 | 1943-07-27 | White S Dental Mfg Co | Dental impression compound |
| FR937158A (en) * | 1940-06-20 | 1948-08-10 | Method and apparatus for refining and water-repelling paper fillers | |
| US2415779A (en) * | 1942-02-16 | 1947-02-11 | Fruit Growers Exchange Ca | Method of increasing retention of fillers in papermaking |
| US2553485A (en) * | 1946-10-25 | 1951-05-15 | Paper Chemistry Inst | Dextrinization of manno-galactans |
| NL150494C (en) * | 1948-12-16 | |||
| US2627477A (en) * | 1949-10-06 | 1953-02-03 | Hercules Powder Co Ltd | Higher alkyl ketene dimer emulsion |
| US2694629A (en) * | 1951-04-18 | 1954-11-16 | American Cyanamid Co | Production of sized alkaline paper |
| US2644763A (en) * | 1951-06-26 | 1953-07-07 | Stein Hall & Co Inc | Modified locust bean gum, solution thereof, and process for making a locust bean gum solution |
| US2674587A (en) * | 1951-11-24 | 1954-04-06 | Edgar Brothers Company | Pigment comprising resin coated clay particles |
| US2698793A (en) * | 1952-04-11 | 1955-01-04 | American Cyanamid Co | Sized paper comprising a polymerized alkylenimine |
-
0
- NL NL107598D patent/NL107598C/xx active
-
1955
- 1955-06-13 US US515238A patent/US2949397A/en not_active Expired - Lifetime
- 1955-07-01 GB GB19096/55A patent/GB778791A/en not_active Expired
- 1955-07-05 GB GB19406/55A patent/GB810828A/en not_active Expired
- 1955-08-04 FR FR1139590D patent/FR1139590A/en not_active Expired
- 1955-08-04 FR FR1139589D patent/FR1139589A/en not_active Expired
- 1955-08-05 DE DEW17245A patent/DE1067296B/en active Pending
- 1955-08-09 DE DEW17271A patent/DE1078426B/en active Pending
- 1955-08-10 CH CH349881D patent/CH349881A/en unknown
- 1955-08-10 BE BE540485A patent/BE540485A/en unknown
- 1955-08-10 NL NL199614A patent/NL113100C/nl active
- 1955-08-10 DK DK263255AA patent/DK88232C/en active
- 1955-08-10 BE BE540486A patent/BE540486A/en unknown
- 1955-08-11 CH CH349155D patent/CH349155A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1139589A (en) | 1957-07-02 |
| BE540485A (en) | 1955-08-31 |
| CH349881A (en) | 1960-10-31 |
| NL113100C (en) | 1966-08-15 |
| CH349155A (en) | 1960-09-30 |
| DE1067296B (en) | 1959-10-15 |
| BE540486A (en) | 1955-08-31 |
| FR1139590A (en) | 1957-07-02 |
| US2949397A (en) | 1960-08-16 |
| GB778791A (en) | 1957-07-10 |
| DE1078426B (en) | 1960-03-24 |
| DK88232C (en) | 1959-11-30 |
| NL107598C (en) | 1963-10-15 |
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