FR2016783A1 - - Google Patents

Info

Publication number
FR2016783A1
FR2016783A1 FR6921291A FR6921291A FR2016783A1 FR 2016783 A1 FR2016783 A1 FR 2016783A1 FR 6921291 A FR6921291 A FR 6921291A FR 6921291 A FR6921291 A FR 6921291A FR 2016783 A1 FR2016783 A1 FR 2016783A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6921291A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DeSoto Inc
Original Assignee
DeSoto Inc
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
Application filed by DeSoto Inc filed Critical DeSoto Inc
Publication of FR2016783A1 publication Critical patent/FR2016783A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/06—Polyurethanes from polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
    • C08G18/635—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto unsaturated polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/68—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/83—Chemically modified polymers
    • C08G18/837—Chemically modified polymers by silicon containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
    • C08G63/695—Polyesters containing atoms other than carbon, hydrogen and oxygen containing silicon
    • C08G63/6954—Polyesters containing atoms other than carbon, hydrogen and oxygen containing silicon derived from polxycarboxylic acids and polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/445—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/458—Block-or graft-polymers containing polysiloxane sequences containing polyurethane sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06—Unsaturated polyesters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
    • C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31594—Next to aldehyde or ketone condensation product [phenol-aldehyde, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31605—Next to free metal
FR6921291A 1966-09-20 1969-06-25 Withdrawn FR2016783A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58057366A 1966-09-20 1966-09-20
US58309266A 1966-09-29 1966-09-29
US74130068A 1968-07-01 1968-07-01

Publications (1)

Publication Number Publication Date
FR2016783A1 true FR2016783A1 (fr) 1970-05-15

Family

ID=27416343

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6921291A Withdrawn FR2016783A1 (fr) 1966-09-20 1969-06-25

Country Status (12)

Country Link
US (3) US3450792A (fr)
BE (2) BE703774A (fr)
CA (1) CA923243A (fr)
DE (2) DE1720505B2 (fr)
DK (1) DK116030B (fr)
ES (2) ES345184A1 (fr)
FI (1) FI47898C (fr)
FR (1) FR2016783A1 (fr)
GB (2) GB1179498A (fr)
NL (2) NL156732B (fr)
NO (1) NO129527B (fr)
SE (1) SE336466B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483449A1 (fr) * 1980-06-03 1981-12-04 Du Pont Composition aqueuse de revetement amelioree a base de resine alkyde contenant un agent de reticulation polyisocyanate et substrat revetu de cette composition
EP0140186A2 (fr) * 1983-10-03 1985-05-08 Ppg Industries, Inc. Composition de revêtement thermodurcissable de polyesteruréthane à composant unique à haute teneur en solides et à base de solvant
FR2659339A1 (fr) * 1990-03-08 1991-09-13 Rhone Poulenc Chimie Coreticulat polyester-silicone degradable par hydrolyse.

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539658A (en) * 1967-11-13 1970-11-10 Desoto Inc Air drying polyurethane coating composition comprising organic polyisocyanate mixed with a resinous polyhydric alcohol having an organosilicon resinous material condensed therein
DE1815043B2 (de) * 1968-12-17 1975-02-06 Enka Glanzstoff Ag, 5600 Wuppertal Verfahren zur Herstellung von Kunstleder
US3668272A (en) * 1970-06-22 1972-06-06 Desoto Inc Unsaturated ethers of polyalkoxy silanes and thermosetting systems containing copolymers thereof
US4000336A (en) * 1971-12-16 1976-12-28 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Production of magnetic recording media
SE404195B (sv) * 1973-05-16 1978-09-25 Ppg Industries Inc Beleggningskomposition innehallande polyuretanpolyol, aminoharts samt tertier amin, som forbettrar glansen
US3929929A (en) * 1973-05-29 1975-12-30 Ici America Inc Vinyl urethane resins
US3975457A (en) * 1973-09-21 1976-08-17 Ppg Industries, Inc. Thermoplastic extensible coating compositions
NL7414491A (nl) * 1973-11-09 1975-05-13 Bayer Ag Als bindmiddel voor kleefstoffen geschikte mengsels, alsmede de toepassing daarvan.
DE2414427A1 (de) * 1974-03-26 1975-10-23 Cassella Farbwerke Mainkur Ag Hitzehaertendes ueberzugsmittel in form einer dispersion
US4093673A (en) * 1974-11-14 1978-06-06 Ppg Industries, Inc. Coating compositions composed of hydroxyfunctional polymers or copolymers and alkoxysilanes
JPS5225893A (en) * 1975-08-25 1977-02-26 Mitsui Toatsu Chem Inc Curable resin compositions
US4186122A (en) * 1976-09-03 1980-01-29 Hitachi Chemical Company, Ltd. Electrical insulating coatings
GB1571613A (en) * 1976-09-29 1980-07-16 Gestetner Ltd Ink for dry planogrphic printing
DE2654036C2 (de) * 1976-11-27 1984-07-05 Dynamit Nobel Ag, 5210 Troisdorf Bindemittel für lagerfähige Überzugsmassen
US4154891A (en) * 1977-03-07 1979-05-15 Ppg Industries, Inc. Novel thermosetting resinous compositions
NL7710099A (nl) * 1977-09-15 1979-03-19 Akzo Nv Bekledingscompositie met verlengde verwer- kingstijd.
US4280979A (en) * 1979-09-18 1981-07-28 Union Carbide Corporation Copolymers, compositions, and articles, and methods for making same
DE2947966A1 (de) * 1979-11-28 1981-07-23 Bayer Ag, 5090 Leverkusen Pfropfpolymerisate, verfahren zu deren herstellung und deren verwendung
US4559383A (en) * 1981-12-28 1985-12-17 Ford Motor Company Chain-extendable crosslinkable urethane modified polyhydroxy oligomers and coating composition comprising same
US4410679A (en) * 1981-12-28 1983-10-18 Ford Motor Company Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate diurethane oligomer
US4410678A (en) * 1981-12-28 1983-10-18 Ford Motor Company Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate diurea oligomer
US4403086A (en) * 1981-12-28 1983-09-06 Ford Motor Company Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate
US4456739A (en) * 1981-12-28 1984-06-26 Ford Motor Company Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate diurea oligomer
US4554188A (en) * 1981-12-28 1985-11-19 Ford Motor Company Chain-extendable crosslinkable urethane modified polyhydroxy oligomers and coating composition comprising same
US4456740A (en) * 1981-12-28 1984-06-26 Ford Motor Company Coating composition comprising chain-extendable crosslinkable polyol and diblocked diisocyanate diurethane oligomer
DE3313237A1 (de) * 1983-04-13 1984-10-18 Bayer Ag, 5090 Leverkusen Waessrige, vernetzerhaltige polyurethanzubereitungen und ihre verwendung zur thermoaktiv-einstrich-umkehrbeschichtung
EP0252076A1 (fr) * 1985-12-12 1988-01-13 Flexcon Company, Inc. Procedes et adhesifs transdermiques
EP1204709B1 (fr) 1999-07-30 2007-02-14 PPG Industries Ohio, Inc. Compositions de revetement presentant une resistance amelioree au egratignures, substrats revetus et procedes correspondant
KR100760068B1 (ko) 1999-07-30 2007-09-18 피피지 인더스트리즈 오하이오, 인코포레이티드 개선된 내긁힘성을 갖는 코팅 조성물, 코팅된 기재 및관련 방법
EP1204701B1 (fr) * 1999-07-30 2005-09-21 PPG Industries Ohio, Inc. Revetements durcis a resistance a la rayure amelioree et substrats revetus
US6623791B2 (en) 1999-07-30 2003-09-23 Ppg Industries Ohio, Inc. Coating compositions having improved adhesion, coated substrates and methods related thereto
US6610777B1 (en) * 1999-07-30 2003-08-26 Ppg Industries Ohio, Inc. Flexible coating compositions having improved scratch resistance, coated substrates and methods related thereto
US6635341B1 (en) 2000-07-31 2003-10-21 Ppg Industries Ohio, Inc. Coating compositions comprising silyl blocked components, coating, coated substrates and methods related thereto
US8062729B2 (en) * 2005-01-14 2011-11-22 Ndsu Research Foundation Polymeric material with surface microdomains
EP3161076A1 (fr) 2014-06-26 2017-05-03 R. R. Donnelley & Sons Company Composition d'encre contenant du polyuréthanne
US9868869B2 (en) 2015-10-01 2018-01-16 R.R. Donnelley & Sons Company Ink composition for use on non-absorbent surfaces
DE102015222139A1 (de) * 2015-11-10 2017-05-11 Wacker Chemie Ag Verfahren zur Imprägnierung von Textilien mit Zusammensetzungen enthaltend Alkoxypolysiloxane
CN114605610B (zh) * 2022-04-20 2023-08-01 江苏恒力化纤股份有限公司 一种含硅网络结构架桥接枝聚氨酯及其制备方法和应用

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901449A (en) * 1950-07-06 1959-08-25 Siemens Ag Organosilicon condensation products and processes for producing them
US2879248A (en) * 1954-04-13 1959-03-24 Bayer Ag Method of making copolymer of diisocyanate modified polyester and vinylidene monomer
US2821518A (en) * 1954-05-25 1958-01-28 Westinghouse Electric Corp Process of preparing an organopolysiloxane modified polyester resin, the product thereof, and electrical conductor coated therewith
US3261881A (en) * 1963-04-03 1966-07-19 Pittsburgh Plate Glass Co Coating composition of a carboxylic acid amide polymer and an organopolysiloxane resin
US3318971A (en) * 1963-05-10 1967-05-09 Soto Chemical Coatings Inc De Solvent-soluble, heat-hardening, non-gelled resin comprising acrylamide-containing interpolymers carrying a reactive hydroxy group condensed with hydroxy-terminated polysiloxane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483449A1 (fr) * 1980-06-03 1981-12-04 Du Pont Composition aqueuse de revetement amelioree a base de resine alkyde contenant un agent de reticulation polyisocyanate et substrat revetu de cette composition
EP0140186A2 (fr) * 1983-10-03 1985-05-08 Ppg Industries, Inc. Composition de revêtement thermodurcissable de polyesteruréthane à composant unique à haute teneur en solides et à base de solvant
EP0140186A3 (en) * 1983-10-03 1987-01-07 Ppg Industries, Inc. Thermosetting high solids solvent-based polyester-urethane one-component coating compositions
FR2659339A1 (fr) * 1990-03-08 1991-09-13 Rhone Poulenc Chimie Coreticulat polyester-silicone degradable par hydrolyse.
US5169641A (en) * 1990-03-08 1992-12-08 Rhone-Poulenc Chimie Hydrolytically degradable polyester/silicon co-crosslinked matrices

Also Published As

Publication number Publication date
ES368868A1 (es) 1971-05-16
DE1720505B2 (de) 1976-06-16
SE336466B (fr) 1971-07-05
GB1179498A (en) 1970-01-28
DK116030B (da) 1969-12-01
NL156732B (nl) 1978-05-16
FI47898C (fi) 1974-04-10
DE1720505A1 (de) 1972-05-04
ES345184A1 (es) 1969-01-01
CA923243A (en) 1973-03-20
NO129527B (fr) 1974-04-22
GB1260012A (en) 1972-01-12
BE703774A (fr) 1968-02-01
US3450791A (en) 1969-06-17
US3597495A (en) 1971-08-03
US3450792A (en) 1969-06-17
FI47898B (fr) 1974-01-02
BE735325A (fr) 1969-12-01
DE1932755A1 (de) 1970-01-08
NL6910022A (fr) 1970-01-05
NL6712853A (fr) 1968-03-21

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