CH537432A - Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen - Google Patents

Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen

Info

Publication number
CH537432A
CH537432A CH1822569A CH1822569A CH537432A CH 537432 A CH537432 A CH 537432A CH 1822569 A CH1822569 A CH 1822569A CH 1822569 A CH1822569 A CH 1822569A CH 537432 A CH537432 A CH 537432A
Authority
CH
Switzerland
Prior art keywords
water
thinnable
expoxy
dispersible
production
Prior art date
Application number
CH1822569A
Other languages
English (en)
Inventor
Katsibas Themistoklis
Original Assignee
Reichhold Albert Chemie Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to BE759939D priority Critical patent/BE759939A/xx
Application filed by Reichhold Albert Chemie Ag filed Critical Reichhold Albert Chemie Ag
Priority to CH146972A priority patent/CH537434A/de
Priority to CH1822569A priority patent/CH537432A/de
Priority to CH146872A priority patent/CH537433A/de
Priority to DE19702054467 priority patent/DE2054467A1/de
Priority to DE2065637*A priority patent/DE2065637A1/de
Priority to AT1036370A priority patent/AT314202B/de
Priority to ES386085A priority patent/ES386085A1/es
Priority to NL7017587A priority patent/NL7017587A/xx
Priority to GB5743970A priority patent/GB1331280A/en
Priority to CA099,737A priority patent/CA960795A/en
Priority to JP45107673A priority patent/JPS4914876B1/ja
Priority to SE7016499A priority patent/SE377943B/xx
Priority to US00095921A priority patent/US3758427A/en
Priority to FR7045077A priority patent/FR2073755A5/fr
Publication of CH537432A publication Critical patent/CH537432A/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/44Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4419Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
    • C09D5/4465Polyurethanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08Processes
    • C08G18/0804Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805Compounds having only one group containing active hydrogen
    • C08G18/2815Monohydroxy compounds
    • C08G18/282Alkanols, cycloalkanols or arylalkanols including terpenealcohols
    • C08G18/2825Alkanols, cycloalkanols or arylalkanols including terpenealcohols having at least 6 carbon atoms
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4244Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
    • C08G18/4247Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
    • C08G18/4252Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids derived from polyols containing polyether groups and polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4244Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups
    • C08G18/4247Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids
    • C08G18/4255Polycondensates having carboxylic or carbonic ester groups in the main chain containing oxygen in the form of ether groups derived from polyols containing at least one ether group and polycarboxylic acids derived from polyols containing oxyalkylated carbocyclic groups and polycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4288Polycondensates having carboxylic or carbonic ester groups in the main chain modified by higher fatty oils or their acids or by resin acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C08G18/4294Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from polyester forming components containing polyepoxy compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4891Polyethers modified with higher fatty oils or their acids or by resin acids
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/63Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/671Unsaturated compounds having only one group containing active hydrogen
    • C08G18/6715Unsaturated monofunctional alcohols or amines
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/44Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4419Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
    • C09D5/4423Polyesters, esterified polyepoxides
    • C09D5/4426Esterified polyepoxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
  • Epoxy Resins (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
CH1822569A 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen CH537432A (de)

Priority Applications (15)

Application Number Priority Date Filing Date Title
BE759939D BE759939A (fr) 1969-12-08 Procede pour la preparation de resines polyurethanes pouvant etre diluees a l'eau respectivement dispergees dans l'eau, modifiees aux epoxyde
CH146972A CH537434A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoxymodifizierten Polyurethanmischpolymerisatharzen
CH1822569A CH537432A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen
CH146872A CH537433A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoximodifizierten Polyurethanharzen
DE19702054467 DE2054467A1 (de) 1969-12-08 1970-11-05 Verfahren zur Herstellung von wasser verdunnbaren bzw wasserdfspergierbaren, epoxidmodifizierten Polyurethanharzen
DE2065637*A DE2065637A1 (de) 1969-12-08 1970-11-05 Verfahren zur herstellung von wasserverduennbaren bzw. wasserdispergierbaren, epoxidmodifizierten polyurethanharzen
AT1036370A AT314202B (de) 1969-12-08 1970-11-17 Verfahren zur Herstellung von wasserverdünnbaren bzw. wasserdispergierbaren, epoxydmodifizierten Polyurethanen
ES386085A ES386085A1 (es) 1969-12-08 1970-12-02 Procedimiento para la preparacion de poliuretano o resinas de copolimeros de poliuretano modificadas con epoxido
NL7017587A NL7017587A (de) 1969-12-08 1970-12-02
GB5743970A GB1331280A (en) 1969-12-08 1970-12-03 Process for the manufacture of epoxy-modified polyurethene resins
CA099,737A CA960795A (en) 1969-12-08 1970-12-03 Process for the manufacture of epoxy-modified polyurethane resins which can be diluted with water or dispersed in water
JP45107673A JPS4914876B1 (de) 1969-12-08 1970-12-07
SE7016499A SE377943B (de) 1969-12-08 1970-12-07
US00095921A US3758427A (en) 1969-12-08 1970-12-07 H can be diluted with water or dispersed in water process for the manufacture of epoxymodified polyurethane resins whic
FR7045077A FR2073755A5 (de) 1969-12-08 1970-12-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1822569A CH537432A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen

Publications (1)

Publication Number Publication Date
CH537432A true CH537432A (de) 1973-05-31

Family

ID=4431440

Family Applications (3)

Application Number Title Priority Date Filing Date
CH146972A CH537434A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoxymodifizierten Polyurethanmischpolymerisatharzen
CH146872A CH537433A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoximodifizierten Polyurethanharzen
CH1822569A CH537432A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, expoxymodifizierten Polyurethanharzen

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CH146972A CH537434A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoxymodifizierten Polyurethanmischpolymerisatharzen
CH146872A CH537433A (de) 1969-12-08 1969-12-08 Verfahren zur Herstellung von wasserverdünnbaren, bzw. wasserdispergierbaren, epoximodifizierten Polyurethanharzen

Country Status (12)

Country Link
US (1) US3758427A (de)
JP (1) JPS4914876B1 (de)
AT (1) AT314202B (de)
BE (1) BE759939A (de)
CA (1) CA960795A (de)
CH (3) CH537434A (de)
DE (2) DE2054467A1 (de)
ES (1) ES386085A1 (de)
FR (1) FR2073755A5 (de)
GB (1) GB1331280A (de)
NL (1) NL7017587A (de)
SE (1) SE377943B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE791977A (fr) * 1971-11-29 1973-05-28 Montedison Spa Resines solubles dans l'eau
US3878148A (en) * 1972-09-28 1975-04-15 Delux Australia Ltd Film-farming compositions comprising autoxidizable material
GB1484514A (en) * 1974-05-22 1977-09-01 Hoechst Ag Heat-curable pulverulent coating composition of a mixture of copolymers containing glycidyl groups and an adduct of aliphatic dicarboxylic acid and 2,4,6-tris(n',n",n"'-dimethylaminomethyl)-phenol
US4036800A (en) * 1975-06-04 1977-07-19 Desoto, Inc. Electrodeposition of aqueous dispersions of amine functional urethane copolymers
US4222911A (en) * 1978-08-07 1980-09-16 Ppg Industries, Inc. Polyester diol extended uralkyd resin and coating compositions containing the same
EP0104683B1 (de) * 1982-09-09 1986-09-10 Akzo N.V. Verfahren zum Überziehen von elektrisch leitenden Substraten und eine wässerige Zusammensetzung enthaltend ein kationisches Bindemittel
DE4004651A1 (de) * 1990-02-15 1991-08-22 Hoechst Ag Lufttrocknende polyurethanharze, deren herstellung und verwendung
JP3094109B2 (ja) * 1990-08-22 2000-10-03 関西ペイント株式会社 水性塗料及びそれを用いる塗装法
US5912299A (en) * 1995-06-07 1999-06-15 The Sherwin-Williams Company Coating compositions from oil modified polyurethane dispersions
US7462679B1 (en) * 2002-11-27 2008-12-09 Han Xiong Xiao Process for preparing functionalized oils; adhesives and coatings and interpenetrating polymer networks prepared from the functionalized oils

Also Published As

Publication number Publication date
JPS4914876B1 (de) 1974-04-10
GB1331280A (en) 1973-09-26
CA960795A (en) 1975-01-07
US3758427A (en) 1973-09-11
DE2054467A1 (de) 1971-06-16
CH537433A (de) 1973-05-31
NL7017587A (de) 1971-06-10
AT314202B (de) 1974-03-25
ES386085A1 (es) 1973-03-16
CH537434A (de) 1973-05-31
SE377943B (de) 1975-08-04
DE2065637A1 (de) 1974-10-03
BE759939A (fr) 1971-05-17
FR2073755A5 (de) 1971-10-01

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