JPS50158695A - - Google Patents

Info

Publication number
JPS50158695A
JPS50158695A JP50055321A JP5532175A JPS50158695A JP S50158695 A JPS50158695 A JP S50158695A JP 50055321 A JP50055321 A JP 50055321A JP 5532175 A JP5532175 A JP 5532175A JP S50158695 A JPS50158695 A JP S50158695A
Authority
JP
Japan
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.)
Granted
Application number
JP50055321A
Other languages
Japanese (ja)
Other versions
JPS55482B2 (US06544258-20030408-M00015.png
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27413081&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS50158695(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of JPS50158695A publication Critical patent/JPS50158695A/ja
Publication of JPS55482B2 publication Critical patent/JPS55482B2/ja
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • 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
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/19—Hydroxy compounds containing aromatic rings
    • 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
    • C08G63/66—Polyesters containing oxygen in the form of ether groups
    • C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/672—Dicarboxylic acids and dihydroxy 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
    • C08G63/682—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens
    • C08G63/6824—Polyesters containing atoms other than carbon, hydrogen and oxygen containing halogens derived from polycarboxylic acids and polyhydroxy compounds
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Artificial Filaments (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Chemical Treatment Of Fibers During Manufacturing Processes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
JP5532175A 1974-05-10 1975-05-10 Expired JPS55482B2 (US06544258-20030408-M00015.png)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US46869574A 1974-05-10 1974-05-10
US46869774A 1974-05-10 1974-05-10
US46869074A 1974-05-10 1974-05-10

Publications (2)

Publication Number Publication Date
JPS50158695A true JPS50158695A (US06544258-20030408-M00015.png) 1975-12-22
JPS55482B2 JPS55482B2 (US06544258-20030408-M00015.png) 1980-01-08

Family

ID=27413081

Family Applications (2)

Application Number Title Priority Date Filing Date
JP5532275A Expired JPS5520008B2 (US06544258-20030408-M00015.png) 1974-05-10 1975-05-10
JP5532175A Expired JPS55482B2 (US06544258-20030408-M00015.png) 1974-05-10 1975-05-10

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP5532275A Expired JPS5520008B2 (US06544258-20030408-M00015.png) 1974-05-10 1975-05-10

Country Status (16)

Country Link
JP (2) JPS5520008B2 (US06544258-20030408-M00015.png)
AR (2) AR217038A1 (US06544258-20030408-M00015.png)
AU (2) AU499234B2 (US06544258-20030408-M00015.png)
BR (2) BR7502887A (US06544258-20030408-M00015.png)
CH (2) CH601390A5 (US06544258-20030408-M00015.png)
DE (2) DE2520820C3 (US06544258-20030408-M00015.png)
ES (2) ES437549A1 (US06544258-20030408-M00015.png)
FR (2) FR2270074B1 (US06544258-20030408-M00015.png)
GB (1) GB1507207A (US06544258-20030408-M00015.png)
IE (2) IE43263B1 (US06544258-20030408-M00015.png)
IN (1) IN144854B (US06544258-20030408-M00015.png)
IT (2) IT1037987B (US06544258-20030408-M00015.png)
LU (2) LU72430A1 (US06544258-20030408-M00015.png)
NL (2) NL164069C (US06544258-20030408-M00015.png)
SE (2) SE416814B (US06544258-20030408-M00015.png)
SU (1) SU1299519A3 (US06544258-20030408-M00015.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164120A (en) * 1981-04-02 1982-10-08 Kanegafuchi Chem Ind Co Ltd Heat-resistant aromatic polyester copolymer and its production
JPS60192725A (ja) * 1984-03-09 1985-10-01 Agency Of Ind Science & Technol 芳香族コポリエステル
JPS60192724A (ja) * 1984-03-09 1985-10-01 Agency Of Ind Science & Technol 高弾性率ポリエステル

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416814B (sv) * 1974-05-10 1981-02-09 Du Pont Nya syntetiska polyestrar och sett for deras framstellning
US4159365A (en) 1976-11-19 1979-06-26 E. I. Du Pont De Nemours And Company Polyphenyl-1,4-phenylene terephthalates and fibers therefrom
US4169933A (en) * 1977-08-08 1979-10-02 Eastman Kodak Company Liquid crystal copolyesters containing terephthalic acid and 2,6-naphthalenedicarboxylic acid
US4146702A (en) * 1977-08-08 1979-03-27 Eastman Kodak Company Liquid crystal copolyesters prepared from an aromatic dicarboxylic acid, a substituted hydroquinone and a m-acyloxybenzoic acid
JPS55500213A (US06544258-20030408-M00015.png) * 1978-05-04 1980-04-10
DE2965897D1 (en) 1978-05-26 1983-08-25 Ici Plc Method of improving the processability of rigid polymers; melts, solutions and shaped articles prepared according to this method
US4153779A (en) * 1978-06-26 1979-05-08 Eastman Kodak Company Liquid crystal copolyester containing a substituted phenylhydroquinone
EP0007732A1 (en) * 1978-07-31 1980-02-06 Imperial Chemical Industries Plc Shaped articles of intractable polymers
FR2438061A1 (fr) 1978-10-05 1980-04-30 Rhone Poulenc Ind Copolyesters alcoylaromatiques thermotropes
US4238599A (en) * 1979-02-08 1980-12-09 Fiber Industries, Inc. Polyester of para-hydroxy benzoic acid, 1,2-bis(para-carboxy phenoxy)ethane, terephthalic acid and substituted hydroquinone capable of forming an anisotropic melt which readily undergoes melt processing
US4269965A (en) * 1979-09-17 1981-05-26 E. I. Du Pont De Nemours And Company Aromatic polyester which forms optically anisotropic melts and filaments thereof
EP0030417B2 (en) * 1979-11-30 1994-03-30 Imperial Chemical Industries Plc Compositions of melt-processable polymers having improved processibility, and method of processing
EP0044147B1 (en) * 1980-07-16 1987-05-20 Imperial Chemical Industries Plc Shaped articles formed from polymers capable of exhibiting anisotropic melts
JPS5761493U (US06544258-20030408-M00015.png) * 1980-09-30 1982-04-12
US4318842A (en) * 1980-10-06 1982-03-09 Celanese Corporation Polyester of 6-hydroxy-2-naphthoic acid, aromatic diol, and 1,4-cyclohexanedicarboxylic acid capable of undergoing melt processing
EP0051934B1 (en) 1980-11-07 1988-12-14 Imperial Chemical Industries Plc Anisotropic melt-forming polymers containing fumaric acid or substituted fumaric acid
JPS5891816A (ja) * 1981-11-26 1983-05-31 Asahi Chem Ind Co Ltd ポリエステル繊維の製造方法
JPS5941331A (ja) * 1982-09-01 1984-03-07 Agency Of Ind Science & Technol 含ハロゲン芳香族ポリエステル
JPS6052623A (ja) * 1983-08-26 1985-03-25 Teijin Ltd 熱溶融性繊維の表面処理方法
JPS59163425A (ja) * 1983-03-07 1984-09-14 Teijin Ltd 合成繊維の表面改質法
JPS6017112A (ja) * 1983-07-07 1985-01-29 Teijin Ltd 芳香族ポリアミド繊維の製造方法
US4818812A (en) * 1983-08-22 1989-04-04 International Business Machines Corporation Sealant for integrated circuit modules, polyester suitable therefor and preparation of polyester
US6045906A (en) 1984-03-15 2000-04-04 Cytec Technology Corp. Continuous, linearly intermixed fiber tows and composite molded article thereform
EP0181610A3 (en) * 1984-11-09 1987-11-04 Sumitomo Chemical Company, Limited Process for melt spinning aromatic polyester
US4743416A (en) * 1984-12-10 1988-05-10 Sumitomo Chemical Company, Limited Melt spinning process of aromatic polyester
DE3505142A1 (de) * 1985-02-14 1986-08-14 Bayer Ag, 5090 Leverkusen Blockcopolymere aus substituierten/unsubstituierten poly(oxy-1,4-phenylen)- und fluessig-kristallinen segmenten
EP0200012B1 (en) * 1985-04-02 1992-03-11 Sumitomo Chemical Company, Limited Process for producing aromatic polyester fiber
US4668454A (en) * 1985-06-12 1987-05-26 E. I. Du Pont De Nemours And Company Heat-strengthening process
JP2565676B2 (ja) * 1985-08-23 1996-12-18 住友化学工業株式会社 芳香族ポリエステル繊維の製造法
JPH06104930B2 (ja) * 1985-09-21 1994-12-21 住友化学工業株式会社 芳香族ポリエステル繊維の製造法
DE3542832A1 (de) 1985-12-04 1987-06-11 Basf Ag Vollaromatische fluessigkristalline polykondensate, deren herstellung und verwendung
DE3542814A1 (de) * 1985-12-04 1987-06-11 Basf Ag Vollaromatische mesomorphe polyester, deren herstellung sowie verwendung
DE3542815A1 (de) * 1985-12-04 1987-06-11 Basf Ag Vollaromatische polyester, deren herstellung und verwendung
DE3542779A1 (de) * 1985-12-04 1987-06-11 Basf Ag Vollaromatische mesomorphe polyesteramide, deren herstellung und verwendung
DE3609805A1 (de) 1986-03-22 1987-09-24 Basf Ag Verfahren zur herstellung von formkoerpern aus fluessig-kristallinen polymeren
DE3622137A1 (de) * 1986-07-02 1988-01-07 Basf Ag Vollaromatische mesomorphe polyester, deren herstellung sowie verwendung
DE3625263A1 (de) * 1986-07-25 1988-02-04 Basf Ag Mikroelektronische bauelemente sowie dickschicht-hybridschaltungen
DE3629209A1 (de) * 1986-08-28 1988-03-03 Basf Ag Vollaromatische thermotrope polyester
FR2607818B1 (fr) * 1986-12-05 1989-03-24 Rhone Poulenc Chimie Copolyesters amides aromatiques thermotropes
JP2506352B2 (ja) * 1986-12-29 1996-06-12 株式会社クラレ 全芳香族ポリエステル及びそれを用いた射出成形品の製造法
FR2617851B1 (fr) * 1987-07-10 1989-11-24 Rhone Poulenc Chimie Copolyesters et copolyesteramides aromatiques thermotropes
IT1223410B (it) * 1987-12-10 1990-09-19 Montedison Spa Poliesteri aromatici liquido cristallini termotropici
JPH02196819A (ja) * 1989-01-25 1990-08-03 Nippon Oil Co Ltd 全芳香族ポリエステル
DE20008542U1 (de) 2000-05-12 2000-09-21 Trw Repa Gmbh Gassack
JP2002060494A (ja) * 2000-08-11 2002-02-26 Sumitomo Chem Co Ltd 熱可塑性樹脂の製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399170A (en) * 1962-11-12 1968-08-27 Chemische Werke Witten Gmbh Process for the preparation of linear thermoplastic polyesters with freezing temperatures above 100u deg. c.
JPS4855288A (US06544258-20030408-M00015.png) * 1971-11-11 1973-08-03
JPS4964696A (US06544258-20030408-M00015.png) * 1972-10-25 1974-06-22
JPS4971085A (US06544258-20030408-M00015.png) * 1972-11-09 1974-07-09
JPS5043223A (US06544258-20030408-M00015.png) * 1973-08-20 1975-04-18

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB863704A (US06544258-20030408-M00015.png) * 1956-05-18 1900-01-01
FR1175382A (fr) * 1957-05-16 1959-03-24 Snecma Dispositif combiné formant pompe et dégazeur
US3160603A (en) * 1960-06-01 1964-12-08 Gen Electric Wholly aromatic poly-p-phenylene chloroisophthalates
US3036990A (en) * 1960-06-01 1962-05-29 Gen Electric Wholly aromatic polyesters from hydroquinone, isophthalic and terephthalic acid reactants
NL129038C (nl) * 1960-06-01 1970-01-15 Gen Electric Werkwijze ter bereiding van lineaire polyesters
US3160604A (en) * 1961-06-01 1964-12-08 Mbltino fo
US3151804A (en) * 1961-06-29 1964-10-06 Gen Motors Corp Vacuum operated pump
US3216187A (en) * 1962-01-02 1965-11-09 Du Pont High strength polyethylene terephthalate yarn
GB989552A (en) * 1962-02-19 1965-04-22 Ici Ltd Crystalline polyesters
GB993272A (en) * 1962-05-22 1965-05-26 Ici Ltd Crystalline polyesters
US3374202A (en) * 1964-10-05 1968-03-19 Du Pont Homopolymeric and copolymeric esters of durohydroquinone
US3671542A (en) * 1966-06-13 1972-06-20 Du Pont Optically anisotropic aromatic polyamide dopes
DE1745254A1 (de) * 1966-06-13 1970-12-23 Du Pont Polyamidfaeden,-fasern,-folien und -fibriden
FR1547346A (fr) * 1966-12-21 1968-11-22 Dynamit Nobel Ag Procédé de préparation de polyesters à partir de phénols halogénés bivalents
JPS5012006B1 (US06544258-20030408-M00015.png) * 1968-06-12 1975-05-08
FR2027359A1 (en) * 1968-12-30 1970-09-25 Dynamit Nobel Ag Thermostable aromatic polyesters
DE1817384A1 (de) * 1968-12-30 1970-07-09 Dynamit Nobel Ag Thermostabile Polyester
DE1924807A1 (de) * 1969-05-16 1970-11-19 Dynamit Nobel Ag Thermostabile Polyester
IL39187A (en) * 1971-04-28 1976-02-29 Du Pont Polyamide fibers and films and their preparation
US3804805A (en) * 1972-12-01 1974-04-16 Eastman Kodak Co Copolyester prepared from polyethylene terephthalate and an acyloxy benzoic acid
US3991013A (en) * 1974-05-10 1976-11-09 E. I. Du Pont De Nemours And Company Copolyesters of derivatives of hydroquinone
SE416814B (sv) * 1974-05-10 1981-02-09 Du Pont Nya syntetiska polyestrar och sett for deras framstellning
US4067852A (en) * 1976-05-13 1978-01-10 Celanese Corporation Melt processable thermotropic wholly aromatic polyester containing polybenzoyl units
US4083829A (en) * 1976-05-13 1978-04-11 Celanese Corporation Melt processable thermotropic wholly aromatic polyester
US4169933A (en) * 1977-08-08 1979-10-02 Eastman Kodak Company Liquid crystal copolyesters containing terephthalic acid and 2,6-naphthalenedicarboxylic acid
US4156070A (en) * 1977-08-08 1979-05-22 Eastman Kodak Company Liquid crystal copolyesters prepared from an aromatic dicarboxylic acid, a substituted hydroquinone and resorcinol
US4130545A (en) * 1977-09-12 1978-12-19 Celanese Corporation Melt processable thermotropic wholly aromatic polyester comprising both para-oxybenzoyl and meta-oxybenzoyl moieties
US4140846A (en) * 1978-05-04 1979-02-20 Eastman Kodak Company Liquid crystal copolyesters containing 4-carboxybenzenepropionic acid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399170A (en) * 1962-11-12 1968-08-27 Chemische Werke Witten Gmbh Process for the preparation of linear thermoplastic polyesters with freezing temperatures above 100u deg. c.
JPS4855288A (US06544258-20030408-M00015.png) * 1971-11-11 1973-08-03
JPS4964696A (US06544258-20030408-M00015.png) * 1972-10-25 1974-06-22
JPS4971085A (US06544258-20030408-M00015.png) * 1972-11-09 1974-07-09
JPS5043223A (US06544258-20030408-M00015.png) * 1973-08-20 1975-04-18

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164120A (en) * 1981-04-02 1982-10-08 Kanegafuchi Chem Ind Co Ltd Heat-resistant aromatic polyester copolymer and its production
JPS60192725A (ja) * 1984-03-09 1985-10-01 Agency Of Ind Science & Technol 芳香族コポリエステル
JPS60192724A (ja) * 1984-03-09 1985-10-01 Agency Of Ind Science & Technol 高弾性率ポリエステル

Also Published As

Publication number Publication date
SE7504996L (sv) 1975-11-11
DE2520819C3 (de) 1989-03-16
SE416814B (sv) 1981-02-09
JPS5520008B2 (US06544258-20030408-M00015.png) 1980-05-30
IN144854B (US06544258-20030408-M00015.png) 1978-07-15
AR207040A1 (es) 1976-09-09
CH601390A5 (US06544258-20030408-M00015.png) 1978-07-14
SE7505189L (sv) 1975-11-11
ES437549A1 (es) 1977-10-01
NL7505552A (US06544258-20030408-M00015.png) 1975-11-12
NL164069C (nl) 1980-11-17
GB1507207A (en) 1978-04-12
DE2520820A1 (de) 1975-11-27
FR2270282B1 (US06544258-20030408-M00015.png) 1979-05-11
IE43263L (en) 1975-11-10
BR7502887A (pt) 1976-03-16
IE43298L (en) 1975-11-10
IE43298B1 (en) 1981-01-28
CH580653A5 (US06544258-20030408-M00015.png) 1976-10-15
LU72430A1 (US06544258-20030408-M00015.png) 1977-02-09
DE2520820C3 (de) 1993-09-30
AU8093675A (en) 1976-11-11
AR217038A1 (es) 1980-02-29
BR7502886A (pt) 1976-03-16
NL7505551A (nl) 1975-11-12
JPS50157619A (US06544258-20030408-M00015.png) 1975-12-19
LU72429A1 (US06544258-20030408-M00015.png) 1977-02-09
AU499234B2 (en) 1979-04-12
DE2520820B2 (de) 1979-04-05
NL164069B (nl) 1980-06-16
DE2520819A1 (de) 1975-11-27
NL162976B (nl) 1980-02-15
AU8093475A (en) 1976-11-11
SE409577B (sv) 1979-08-27
IT1037986B (it) 1979-11-20
FR2270282A1 (US06544258-20030408-M00015.png) 1975-12-05
JPS55482B2 (US06544258-20030408-M00015.png) 1980-01-08
AU499272B2 (en) 1979-04-12
FR2270074A1 (US06544258-20030408-M00015.png) 1975-12-05
DE2520819B2 (de) 1979-06-21
IT1037987B (it) 1979-11-20
ES437550A1 (es) 1977-04-01
FR2270074B1 (US06544258-20030408-M00015.png) 1978-02-10
SU1299519A3 (ru) 1987-03-23
IE43263B1 (en) 1981-01-28

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