CH619321A5 - Method of manufacturing a microporous separator for accumulators - Google Patents

Method of manufacturing a microporous separator for accumulators Download PDF

Info

Publication number: CH619321A5
Authority: CH; Switzerland
Prior art keywords: solvent; plasticizer; article; separator; amount
Prior art date: 1975-06-27

Application number

CH818376A

Other languages

English (en)

French (fr)

Inventor

Bruce S Goldberg

Original Assignee

Amerace Corp

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.)

1975-06-27

Filing date

1976-06-25

Publication date

1980-09-15

1976-06-25 Application filed by Amerace Corp filed Critical Amerace Corp

1980-09-15 Publication of CH619321A5 publication Critical patent/CH619321A5/fr

Links

238000004519 manufacturing process Methods 0.000 title claims description 6
239000000203 mixture Substances 0.000 claims abstract description 47
239000002904 solvent Substances 0.000 claims abstract description 31
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
239000011230 binding agent Substances 0.000 claims abstract description 20
JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims abstract description 20
239000011148 porous material Substances 0.000 claims abstract description 18
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
229920001169 thermoplastic Polymers 0.000 claims abstract description 10
239000004416 thermosoftening plastic Substances 0.000 claims abstract description 10
239000000377 silicon dioxide Substances 0.000 claims abstract description 9
MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims abstract description 8
BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims abstract description 8
238000002156 mixing Methods 0.000 claims abstract description 6
229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 5
239000004800 polyvinyl chloride Substances 0.000 claims abstract description 5
238000003490 calendering Methods 0.000 claims abstract description 4
239000004014 plasticizer Substances 0.000 claims description 34
238000000034 method Methods 0.000 claims description 23
239000012764 mineral filler Substances 0.000 claims description 14
239000011159 matrix material Substances 0.000 claims description 9
229920005989 resin Polymers 0.000 claims description 9
239000011347 resin Substances 0.000 claims description 9
229920001519 homopolymer Polymers 0.000 claims description 8
ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 claims description 6
239000002245 particle Substances 0.000 claims description 5
238000000605 extraction Methods 0.000 claims description 3
XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 3
238000001125 extrusion Methods 0.000 claims description 2
239000004594 Masterbatch (MB) Substances 0.000 abstract description 2
WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 abstract 1
239000011256 inorganic filler Substances 0.000 abstract 1
229910003475 inorganic filler Inorganic materials 0.000 abstract 1
239000004615 ingredient Substances 0.000 description 16
229920005992 thermoplastic resin Polymers 0.000 description 15
239000000047 product Substances 0.000 description 10
229920003023 plastic Polymers 0.000 description 9
239000004033 plastic Substances 0.000 description 9
230000000704 physical effect Effects 0.000 description 8
BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 6
239000002253 acid Substances 0.000 description 6
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
229910052753 mercury Inorganic materials 0.000 description 5
230000035515 penetration Effects 0.000 description 5
239000003610 charcoal Substances 0.000 description 4
LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 4
239000000945 filler Substances 0.000 description 4
239000000843 powder Substances 0.000 description 4
229960004029 silicic acid Drugs 0.000 description 4
APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 4
239000007787 solid Substances 0.000 description 4
ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
238000010521 absorption reaction Methods 0.000 description 3
230000015572 biosynthetic process Effects 0.000 description 3
239000007788 liquid Substances 0.000 description 3
239000000463 material Substances 0.000 description 3
239000003960 organic solvent Substances 0.000 description 3
235000011837 pasties Nutrition 0.000 description 3
238000002360 preparation method Methods 0.000 description 3
CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
229920006385 Geon Polymers 0.000 description 2
WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
239000000470 constituent Substances 0.000 description 2
230000007423 decrease Effects 0.000 description 2
238000001035 drying Methods 0.000 description 2
239000012530 fluid Substances 0.000 description 2
230000003647 oxidation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
230000002028 premature Effects 0.000 description 2
238000003809 water extraction Methods 0.000 description 2
239000000080 wetting agent Substances 0.000 description 2
QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
239000005977 Ethylene Substances 0.000 description 1
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
230000002745 absorbent Effects 0.000 description 1
239000002250 absorbent Substances 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
IYOMHIGZSOEQBT-UHFFFAOYSA-N buta-1,2,3-triene;prop-1-ene Chemical group CC=C.C=C=C=C IYOMHIGZSOEQBT-UHFFFAOYSA-N 0.000 description 1
239000006229 carbon black Substances 0.000 description 1
229920006235 chlorinated polyethylene elastomer Polymers 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000007906 compression Methods 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000007580 dry-mixing Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000006056 electrooxidation reaction Methods 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
210000003608 fece Anatomy 0.000 description 1
-1 for example Chemical compound 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
239000000017 hydrogel Substances 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
229910003480 inorganic solid Inorganic materials 0.000 description 1
150000002500 ions Chemical class 0.000 description 1
150000002576 ketones Chemical class 0.000 description 1
238000002386 leaching Methods 0.000 description 1
239000011707 mineral Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
239000000178 monomer Substances 0.000 description 1
239000000088 plastic resin Substances 0.000 description 1
229920000642 polymer Polymers 0.000 description 1
238000002459 porosimetry Methods 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
229920001187 thermosetting polymer Polymers 0.000 description 1
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
229920002554 vinyl polymer Polymers 0.000 description 1

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/02—Halogenated hydrocarbons
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/491—Porosity
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
- H01M50/494—Tensile strength
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
- C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Health & Medical Sciences (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Electrochemistry (AREA)
General Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Cell Separators (AREA)
Compositions Of Macromolecular Compounds (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

CH818376A 1975-06-27 1976-06-25 Method of manufacturing a microporous separator for accumulators CH619321A5 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US59108575A	1975-06-27	1975-06-27

Publications (1)

Publication Number	Publication Date
CH619321A5 true CH619321A5 (en)	1980-09-15

Family

ID=24364997

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH818376A CH619321A5 (en)	1975-06-27	1976-06-25	Method of manufacturing a microporous separator for accumulators

Country Status (15)

Country	Link
JP (1)	JPS525426A (de)
AT (1)	AT360099B (de)
AU (1)	AU510614B2 (de)
BE (1)	BE843328A (de)
CA (1)	CA1092761A (de)
CH (1)	CH619321A5 (de)
DE (1)	DE2629236A1 (de)
ES (1)	ES449241A1 (de)
FR (1)	FR2317777A1 (de)
GB (1)	GB1553302A (de)
IT (1)	IT1065607B (de)
LU (1)	LU75243A1 (de)
NL (1)	NL7607035A (de)
PT (1)	PT65257B (de)
SE (1)	SE7607200L (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4184939A (en) *	1977-09-26	1980-01-22	Olin Corporation	Diaphragms for use in the electrolysis of alkali metal chlorides
ZA82379B (en) *	1981-01-28	1982-12-29	Grace Gmbh	Process for producing porous materials and the use thereof
DE3545615C3 (de)	1984-12-28	1996-11-21	Ppg Industries Inc	Verwendung von amorphem gefälltem Siliziumdioxid zum Verstärken von mikroporösen Trennelementen für Batterien
CA1233621A (en) *	1984-12-28	1988-03-08	Harlan B. Johnson	Battery separator
DE19627615A1 (de)	1996-07-09	1998-01-15	Hoppecke Zoellner Sohn Accu	Verfahren zur Behandlung von mit Kieselsäureeinlagerungen versehenen elastischen Materialien
US6242127B1 (en)	1999-08-06	2001-06-05	Microporous Products, L.P.	Polyethylene separator for energy storage cell
JP7178949B2 (ja) *	2019-04-16	2022-11-28	住友化学株式会社	非水電解液二次電池用多孔質層

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1126034A (fr) *	1955-05-10	1956-11-13	Comp Generale Electricite	Procédé de fabrication de matières poreuses, notamment pour séparateurs, d'accumulateurs, par emploi de substances solubles
US3210218A (en) *	1961-08-21	1965-10-05	Nihon Mukiseni Kogyo Kabushiki	Process of manufacturing battery separators
US3450650A (en) *	1963-06-13	1969-06-17	Yuasa Battery Co Ltd	Method of making porous bodies
FR1515826A (fr) *	1963-08-07	1968-03-08	Grace W R & Co	Séparateur pour batterie et procédé pour sa fabrication
US3696061A (en) *	1970-04-13	1972-10-03	Amerace Esna Corp	Method for forming flowable powder processable into microporous object

1976
- 1976-06-07 GB GB23505/76A patent/GB1553302A/en not_active Expired
- 1976-06-21 AU AU15110/76A patent/AU510614B2/en not_active Expired
- 1976-06-22 PT PT65257A patent/PT65257B/pt unknown
- 1976-06-23 SE SE7607200A patent/SE7607200L/xx unknown
- 1976-06-24 BE BE1007473A patent/BE843328A/xx unknown
- 1976-06-25 CA CA255,758A patent/CA1092761A/en not_active Expired
- 1976-06-25 IT IT50150/76A patent/IT1065607B/it active
- 1976-06-25 ES ES449241A patent/ES449241A1/es not_active Expired
- 1976-06-25 FR FR7619479A patent/FR2317777A1/fr active Pending
- 1976-06-25 NL NL7607035A patent/NL7607035A/xx not_active Application Discontinuation
- 1976-06-25 AT AT467276A patent/AT360099B/de not_active IP Right Cessation
- 1976-06-25 CH CH818376A patent/CH619321A5/fr not_active IP Right Cessation
- 1976-06-25 DE DE19762629236 patent/DE2629236A1/de not_active Withdrawn
- 1976-06-25 LU LU75243A patent/LU75243A1/xx unknown
- 1976-06-28 JP JP51075641A patent/JPS525426A/ja active Pending

Also Published As

Publication number	Publication date
CA1092761A (en)	1981-01-06
ES449241A1 (es)	1977-12-01
LU75243A1 (de)	1977-03-16
DE2629236A1 (de)	1977-01-20
FR2317777A1 (fr)	1977-02-04
NL7607035A (nl)	1976-12-29
PT65257B (en)	1977-12-07
SE7607200L (sv)	1976-12-28
BE843328A (fr)	1976-12-24
AU510614B2 (en)	1980-07-03
ATA467276A (de)	1980-05-15
IT1065607B (it)	1985-03-04
PT65257A (en)	1976-07-01
JPS525426A (en)	1977-01-17
AT360099B (de)	1980-12-29
GB1553302A (en)	1979-09-26
AU1511076A (en)	1978-01-05

Legal Events

Date	Code	Title	Description
1982-02-26	PL	Patent ceased
2024-10-31	PL	Patent ceased

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