GB907357A - Improvements in or relating to polyacetylmethylenediamines - Google Patents
Improvements in or relating to polyacetylmethylenediaminesInfo
- Publication number
- GB907357A GB907357A GB32189/61A GB3218961A GB907357A GB 907357 A GB907357 A GB 907357A GB 32189/61 A GB32189/61 A GB 32189/61A GB 3218961 A GB3218961 A GB 3218961A GB 907357 A GB907357 A GB 907357A
- Authority
- GB
- United Kingdom
- Prior art keywords
- produce
- tetraacetyl
- methylene diamine
- acetic
- acetic anhydride
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
- C11D3/3917—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/06—Inorganic compounds
- C11D9/08—Water-soluble compounds
- C11D9/10—Salts
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention comprises N,N,N1-triacetyl-and N,N,N1,N1-tetraacetyl-methylene diamine; and their preparation by acetylating N,N1-diacetyl-methylene diamine, e.g. with ketene in an inert solvent in the presence of an acidreacting catalyst, e.g. p-toluenesulphonic acid, to produce the tetraacetyl methylene diamine; with acetic anhydride with simultaneous elimination of the acetic acid formed, to produce the tetraacetyl compound; with acetic anhydride under reflux to produce the triacetyl methylene diamine; or with acetic anhydride with partial elimination of the acetic formed, to produce a mixture of the tri- and tetraacetyl compounds.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21220/59A GB907356A (en) | 1959-06-19 | 1959-06-19 | Improvements in or relating to washing and/or bleaching compositions |
GB2606159 | 1959-07-29 | ||
GB3469559 | 1959-10-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB907357A true GB907357A (en) | 1962-10-03 |
Family
ID=27257993
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21220/59A Expired GB907356A (en) | 1959-06-06 | 1959-06-19 | Improvements in or relating to washing and/or bleaching compositions |
GB32189/61A Expired GB907357A (en) | 1959-06-19 | 1959-07-29 | Improvements in or relating to polyacetylmethylenediamines |
GB9441/62A Expired GB907358A (en) | 1959-06-19 | 1960-05-13 | Improvements in or relating to washing and/or bleaching compositions |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21220/59A Expired GB907356A (en) | 1959-06-06 | 1959-06-19 | Improvements in or relating to washing and/or bleaching compositions |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9441/62A Expired GB907358A (en) | 1959-06-19 | 1960-05-13 | Improvements in or relating to washing and/or bleaching compositions |
Country Status (7)
Country | Link |
---|---|
US (1) | US3163606A (en) |
BE (1) | BE591624A (en) |
CA (2) | CA678942A (en) |
DE (2) | DE1149349B (en) |
FI (1) | FI42698B (en) |
GB (3) | GB907356A (en) |
NL (4) | NL252798A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228983A (en) * | 1962-08-20 | 1966-01-11 | British Celanese | Production of polyacetyl methylene diamines |
US4354042A (en) * | 1980-06-27 | 1982-10-12 | Warwick Chemical Limited | Process for making N,N,N',N'-tetraacetylethylenediamine |
US5850086A (en) * | 1996-06-21 | 1998-12-15 | Regents Of The University Of Minnesota | Iron complexes for bleach activation and stereospecific oxidation |
US5856282A (en) * | 1994-12-22 | 1999-01-05 | The Procter & Gamble Company | Silicone compositions |
DE102004040212A1 (en) * | 2004-08-19 | 2006-03-02 | Icfs Gmbh | New N,N-diacylamine derivatives are useful in the preparation of aromatic and hetero-cyclic aldehydes and useful as acylating or formylating agents |
Families Citing this family (89)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297574B (en) * | 1964-05-12 | 1969-06-19 | Degussa | Detergents and bleaches |
CA793720A (en) * | 1964-12-28 | 1968-09-03 | G. Mackellar Donald | Peroxygen compositions |
CA783079A (en) * | 1965-06-09 | 1968-04-16 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Agent for the bleaching and washing of textiles |
GB1182143A (en) * | 1966-03-01 | 1970-02-25 | United States Borax Chem | Bleaching Compositions and Methods. |
US3982891A (en) * | 1967-10-24 | 1976-09-28 | Colgate-Palmolive Company | Bleaching and detergent compositions having imide activator and peroxygen bleach |
US3637339A (en) * | 1968-03-07 | 1972-01-25 | Frederick William Gray | Stain removal |
GB1286459A (en) * | 1968-12-12 | 1972-08-23 | Unilever Ltd | Detergent compositions |
GB1392284A (en) | 1971-03-30 | 1975-04-30 | Unilever Ltd | Stabilisation of active oxygen releasing compounds |
US4009113A (en) | 1971-04-30 | 1977-02-22 | Lever Brothers Company | Protection of materials |
US3969257A (en) * | 1971-07-23 | 1976-07-13 | Colgate-Palmolive Company | Washing and bleaching composition containing bleach, activator and a nitrilotricarboxylic acid compound |
AT339246B (en) * | 1974-08-14 | 1977-10-10 | Henkel & Cie Gmbh | BLEACHING AID SUITABLE AS A COMPONENT OF POWDERED DETERGENTS AND BLEACHING AGENTS |
AT326611B (en) * | 1972-07-31 | 1975-12-29 | Henkel & Cie Gmbh | BLEACHING AID SUITABLE AS A COMPONENT OF POWDERED DETERGENTS AND BLEACHING AGENTS |
JPS526867B2 (en) * | 1972-09-14 | 1977-02-25 | ||
US3975153A (en) * | 1975-08-25 | 1976-08-17 | Fmc Corporation | Activation of peroxygen bleaches using isophorone enol acetates and isophorone oximinoacetate |
GB1561333A (en) * | 1975-11-03 | 1980-02-20 | Unilever Ltd | Bleaching assistants |
US4087369A (en) * | 1976-11-08 | 1978-05-02 | The Procter & Gamble Company | Peroxybleach activated detergent composition |
DE2733849A1 (en) * | 1977-07-27 | 1979-02-15 | Basf Ag | SOLID COLD BLEACH ACTIVATORS FOR COMPOUNDS RELEASING ACTIVE OXYGEN |
US4273661A (en) * | 1978-05-25 | 1981-06-16 | Colgate-Palmolive Company | Article for dispensing liquid bleach softener composition |
US4166794A (en) * | 1978-05-25 | 1979-09-04 | Colgate-Palmolive Company | Liquid bleach-softener compositions |
US4199466A (en) * | 1978-08-21 | 1980-04-22 | Shell Oil Company | Activated bleaching process and compositions therefor |
DE3011998C2 (en) * | 1980-03-28 | 1982-06-16 | Henkel KGaA, 4000 Düsseldorf | Process for the production of a storage-stable, easily soluble granulate with a content of bleach activators |
DE3169751D1 (en) | 1980-12-09 | 1985-05-09 | Unilever Nv | Bleach activator granules |
US4421668A (en) * | 1981-07-07 | 1983-12-20 | Lever Brothers Company | Bleach composition |
DE3128336A1 (en) * | 1981-07-17 | 1983-01-27 | Henkel KGaA, 4000 Düsseldorf | "METHOD FOR PRODUCING COATED NUCLEAR BLEACHING ACTIVATORS" |
DE3218889A1 (en) * | 1982-05-19 | 1983-11-24 | Hoechst Ag, 6230 Frankfurt | METHOD FOR SIMULTANEOUSLY DECOLIFYING AND BLEACHING TEXTILE MATERIAL FROM CELLULOSE FIBERS |
DE3304848A1 (en) * | 1983-02-12 | 1984-08-16 | Henkel KGaA, 4000 Düsseldorf | ORGANIC CYANAMIDE COMPOUNDS AS ACTIVATORS FOR INORGANIC PER CONNECTIONS |
GB8422158D0 (en) * | 1984-09-01 | 1984-10-03 | Procter & Gamble Ltd | Bleach compositions |
US4964870A (en) * | 1984-12-14 | 1990-10-23 | The Clorox Company | Bleaching with phenylene diester peracid precursors |
EP0253772A3 (en) * | 1986-07-15 | 1989-07-19 | Warner-Lambert Company | Denture cleansing and/or washing compositions containing a bleach activator |
GB8619152D0 (en) * | 1986-08-06 | 1986-09-17 | Unilever Plc | Conditioning fabrics |
GB8619153D0 (en) * | 1986-08-06 | 1986-09-17 | Unilever Plc | Fabric conditioning composition |
US4957647A (en) * | 1986-11-06 | 1990-09-18 | The Clorox Company | Acyloxynitrogen peracid precursors |
US5049305A (en) * | 1986-11-06 | 1991-09-17 | Zielske Alfred G | Phenoxyacetate peracid precursors and perhydrolysis systems therewith |
US4859800A (en) * | 1986-11-06 | 1989-08-22 | The Clorox Company | Phenoxyacetate peracid precursors |
US5087385A (en) * | 1986-11-06 | 1992-02-11 | The Clorox Company | Acyloxynitrogen peracid precursors |
US4956117A (en) * | 1986-11-06 | 1990-09-11 | The Clorox Company | Phenoxyacetate peracid precursors and perhydrolysis systems therewith |
DE68908439T2 (en) * | 1988-03-01 | 1993-12-23 | Unilever Nv | Quatenary ammonium compounds for use in bleaching systems. |
DE3842008A1 (en) * | 1988-12-14 | 1990-06-21 | Hoechst Ag | USE OF TRIACYLATED EHTANOLAMINES AS LIQUID, WATER-MIXABLE PEROXIDE ACTIVATORS |
DE3843195A1 (en) * | 1988-12-22 | 1990-06-28 | Hoechst Ag | METHOD FOR PRODUCING STORAGE-STABLE, EASILY SOLUBLE BLEACHING ACTIVATOR GRANULES |
US5000869A (en) * | 1990-02-14 | 1991-03-19 | Safe Aid Products, Inc. | Novel polymer coated bleaching composition |
GB9003741D0 (en) * | 1990-02-19 | 1990-04-18 | Unilever Plc | Bleach activation |
SK278833B6 (en) * | 1992-01-17 | 1998-03-04 | Unilever Nv | Detergent whitening mixture containing particles |
SK278834B6 (en) * | 1992-01-17 | 1998-03-04 | Unilever Nv | Detergent whitening mixture containing particles |
US5372740A (en) * | 1993-09-03 | 1994-12-13 | Lever Brothers Company, Division Of Conopco, Inc. | Homogeneous liquid automatic dishwashing detergent composition based on sodium potassium tripolyphosphate |
US5468410A (en) * | 1993-10-14 | 1995-11-21 | Angevaare; Petrus A. | Purine class compounds in detergent compositions |
US5480576A (en) * | 1993-10-14 | 1996-01-02 | Lever Brothers Company, Division Of Conopco, Inc. | 1,3-N azole containing detergent compositions |
GB2294268A (en) | 1994-07-07 | 1996-04-24 | Procter & Gamble | Bleaching composition for dishwasher use |
EP0693549A1 (en) | 1994-07-19 | 1996-01-24 | The Procter & Gamble Company | Solid bleach activator compositions |
JP3334363B2 (en) * | 1994-08-31 | 2002-10-15 | 三菱瓦斯化学株式会社 | Mold remover composition and mold bleaching method |
DE19530786A1 (en) | 1995-08-22 | 1997-02-27 | Hoechst Ag | A bleaching composition containing polyoxometalates as a bleach catalyst |
US5750483A (en) | 1995-12-06 | 1998-05-12 | Basf Corporation | Non-phosphate machine dishwashing compositions containing polycarboxylate polymers and nonionic graft copolymers of vinyl acetate and polyalkylene oxide |
EP0778340A3 (en) | 1995-12-06 | 1999-10-27 | Basf Corporation | Improved non-phosphate machine dishwashing compositions containing copolymers of alkylene oxide adducts of allyl alcohol and acrylic acid |
DE19600159A1 (en) | 1996-01-04 | 1997-07-10 | Hoechst Ag | Bleaching agent systems containing bis- and tris (mu-oxo) -di-manganese complex salts |
DE19605526A1 (en) | 1996-02-15 | 1997-08-21 | Hoechst Ag | Ammonium nitriles and their use as bleach activators |
DE19606343A1 (en) | 1996-02-21 | 1997-08-28 | Hoechst Ag | Bleach |
DE19635070A1 (en) * | 1996-08-30 | 1998-03-05 | Clariant Gmbh | Liquid bleach suspension |
DE19801049A1 (en) * | 1998-01-14 | 1999-07-15 | Clariant Gmbh | Use of formamidinium salts as bleach activators |
DE19841184A1 (en) * | 1998-09-09 | 2000-03-16 | Clariant Gmbh | bleach activator |
US6369288B1 (en) | 2000-01-05 | 2002-04-09 | The United States Of America As Represented By The Secretary Of The Navy | Chemical and biological warfare decontaminating solution using bleach activators |
GB0011527D0 (en) | 2000-05-12 | 2000-06-28 | Unilever Plc | Bleach catalyst and composition and method for bleaching a substrate |
GB0106285D0 (en) | 2001-03-14 | 2001-05-02 | Unilever Plc | Air bleaching catalysts with moderating agent |
BR0208098A (en) | 2001-03-14 | 2004-03-02 | Unilever Nv | Whitening composition |
MXPA04011328A (en) * | 2002-05-16 | 2005-02-14 | Procter & Gamble | Rinse-added fabric treatment composition and methods and uses thereof. |
DE102004043360A1 (en) * | 2004-09-08 | 2006-03-09 | Clariant Gmbh | Bleach activator mixtures |
WO2006027179A1 (en) * | 2004-09-08 | 2006-03-16 | Clariant Produkte (Deutschland) Gmbh | Mixtures of bleaching agents |
ES2727511T3 (en) | 2008-04-09 | 2019-10-16 | Basf Se | Use of hydrazide compounds as oxidation catalysts |
US8969283B2 (en) * | 2009-02-05 | 2015-03-03 | American Sterilizer Company | Low odor, hard surface sporicides and chemical decontaminants |
GB0918914D0 (en) | 2009-10-28 | 2009-12-16 | Revolymer Ltd | Composite |
CN102958909B (en) | 2010-06-28 | 2016-11-09 | 巴斯夫欧洲公司 | Metal-free bleaching composition |
RU2578565C2 (en) | 2010-12-13 | 2016-03-27 | Басф Се | Bleaching catalysts |
GB201106409D0 (en) | 2011-04-15 | 2011-06-01 | Revolymer Ltd | Novel composite |
EP3011004B2 (en) | 2013-06-20 | 2020-07-01 | Catexel Technologies Limited | Bleach and oxidation catalyst |
CA2921480A1 (en) | 2013-08-16 | 2015-02-19 | Chemsenti Limited | Composition |
WO2017076771A1 (en) | 2015-11-03 | 2017-05-11 | Basf Se | Bleach catalysts |
EP3176157A1 (en) | 2015-12-01 | 2017-06-07 | Basf Se | Bleach catalysts |
WO2017182295A1 (en) | 2016-04-18 | 2017-10-26 | Basf Se | Liquid cleaning compositions |
WO2017186480A1 (en) | 2016-04-26 | 2017-11-02 | Basf Se | Metal free bleaching composition |
IT201600070454A1 (en) | 2016-07-06 | 2016-10-06 | 3V Sigma Spa | PEROSSIGENATED COMPOUND ACTIVATORS |
EP3372663A1 (en) | 2017-03-10 | 2018-09-12 | Basf Se | Bleach catalysts |
BR112022016985A2 (en) | 2020-02-28 | 2022-10-25 | Catexel Tech Limited | DEGRADATION METHOD |
EP3967742A1 (en) | 2020-09-15 | 2022-03-16 | WeylChem Performance Products GmbH | Compositions comprising bleaching catalyst, manufacturing process thereof, and bleaching and cleaning agent comprising same |
EP4008765A1 (en) | 2020-12-07 | 2022-06-08 | WeylChem Performance Products GmbH | Compositions comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising same |
EP4296343A1 (en) | 2022-06-24 | 2023-12-27 | WeylChem Performance Products GmbH | Compositions comprising protonated triazacyclic compounds and manganese(ii) acetate, manufacturing thereof, and bleaching and cleaning agent comprising same |
WO2024175409A1 (en) | 2023-02-21 | 2024-08-29 | Basf Se | Modified hyperbranched alkoxylated polyalkylene imines |
WO2024175401A1 (en) | 2023-02-21 | 2024-08-29 | Basf Se | Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines |
WO2024175407A1 (en) | 2023-02-21 | 2024-08-29 | Basf Se | Modified alkoxylated polyalkylene imines or modified alkoxylated polyamines |
WO2024188713A1 (en) | 2023-03-13 | 2024-09-19 | Basf Se | Alkoxylated nitrogen containing polymers and their use |
WO2024231110A1 (en) | 2023-05-05 | 2024-11-14 | Basf Se | Biodegradable polyol propoxylates, their preparation, uses, and compositions comprising them |
WO2024256175A1 (en) | 2023-06-13 | 2024-12-19 | Basf Se | Stabilized cleaning compositions comprising edds and enzymes and their use |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1950956A (en) * | 1931-10-19 | 1934-03-13 | Marshall Field & Company | Method of coating chloramine and product thereof |
US2267685A (en) * | 1938-07-05 | 1941-12-23 | Monsanto Chemicals | Nu,nu'-lower aliphatic diacyl-nu, nu'-dicyclohexyl alkylene diamines |
US2445319A (en) * | 1939-04-22 | 1948-07-20 | American Hyalsol Corp | Method for the manufacture of quaternary nitrogen compounds |
US2742501A (en) * | 1951-06-11 | 1956-04-17 | Glanzstoff Ag | Method of producing alkylidene bis-amides |
DE1010048B (en) * | 1953-05-20 | 1957-06-13 | Degussa | Process for washing fibrous materials or textile goods |
DE1093773B (en) * | 1953-11-21 | 1960-12-01 | Degussa | Process for washing fibrous materials or textile goods |
US2838459A (en) * | 1955-02-01 | 1958-06-10 | Pennsalt Chemicals Corp | Stabilization of solutions containing peroxygen compounds |
BE548769A (en) * | 1955-07-08 | |||
US2927082A (en) * | 1956-01-19 | 1960-03-01 | Du Pont | Peroxide bleaching compositions and their use |
GB831002A (en) * | 1956-10-18 | 1960-03-23 | American Cyanamid Co | Preparation of monothiooxamide |
US2923738A (en) * | 1958-05-08 | 1960-02-02 | Gen Aniline & Film Corp | Addition products of n-alkyl-gamma-hydroxycarboxylic acid amides and alkanolamines |
US3061550A (en) * | 1959-05-11 | 1962-10-30 | Du Pont | Textile bleaching composition |
-
0
- CA CA800223A patent/CA800223A/en not_active Expired
- DE DENDAT1162967D patent/DE1162967B/en active Pending
- NL NL130608D patent/NL130608C/xx active
- NL NL97449D patent/NL97449C/xx active
- NL NL239952D patent/NL239952A/xx unknown
- NL NL252798D patent/NL252798A/xx unknown
- BE BE591624D patent/BE591624A/xx unknown
- CA CA678942A patent/CA678942A/en not_active Expired
-
1959
- 1959-06-19 GB GB21220/59A patent/GB907356A/en not_active Expired
- 1959-07-29 GB GB32189/61A patent/GB907357A/en not_active Expired
-
1960
- 1960-05-13 GB GB9441/62A patent/GB907358A/en not_active Expired
- 1960-05-27 DE DEK45423A patent/DE1149349B/en active Pending
- 1960-06-02 US US33397A patent/US3163606A/en not_active Expired - Lifetime
-
1966
- 1966-11-23 FI FI3100/66A patent/FI42698B/fi active
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228983A (en) * | 1962-08-20 | 1966-01-11 | British Celanese | Production of polyacetyl methylene diamines |
US4354042A (en) * | 1980-06-27 | 1982-10-12 | Warwick Chemical Limited | Process for making N,N,N',N'-tetraacetylethylenediamine |
US4356321A (en) * | 1980-06-27 | 1982-10-26 | Warwick Chemical Limited | Production of N,N,N',N'-tetraacetylethylenediamine |
US5856282A (en) * | 1994-12-22 | 1999-01-05 | The Procter & Gamble Company | Silicone compositions |
US5850086A (en) * | 1996-06-21 | 1998-12-15 | Regents Of The University Of Minnesota | Iron complexes for bleach activation and stereospecific oxidation |
US6107528A (en) * | 1996-06-21 | 2000-08-22 | Regents Of The University Of Minnesota | Iron complexes for bleach activation and stereospecific oxidation |
DE102004040212A1 (en) * | 2004-08-19 | 2006-03-02 | Icfs Gmbh | New N,N-diacylamine derivatives are useful in the preparation of aromatic and hetero-cyclic aldehydes and useful as acylating or formylating agents |
DE102004040212B4 (en) * | 2004-08-19 | 2007-07-05 | Icfs Gmbh | Novel acylating and formylating agents, processes for their preparation, and novel processes for the preparation of aromatic and heterocyclic aldehydes |
Also Published As
Publication number | Publication date |
---|---|
CA678942A (en) | 1964-01-28 |
DE1149349B (en) | 1963-05-30 |
NL130608C (en) | |
NL252798A (en) | 1900-01-01 |
GB907358A (en) | 1962-10-03 |
GB907356A (en) | 1962-10-03 |
NL97449C (en) | |
NL239952A (en) | |
CA800223A (en) | 1968-12-03 |
US3163606A (en) | 1964-12-29 |
FI42698B (en) | 1970-06-30 |
DE1162967B (en) | 1964-02-13 |
BE591624A (en) |
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