IT1021745B - Perfezionamento nei procedimenti der la produzione di filamenti poliimmidi ci e prodotto ottenuto - Google Patents

Perfezionamento nei procedimenti der la produzione di filamenti poliimmidi ci e prodotto ottenuto

Info

Publication number
IT1021745B
IT1021745B IT5344874A IT5344874A IT1021745B IT 1021745 B IT1021745 B IT 1021745B IT 5344874 A IT5344874 A IT 5344874A IT 5344874 A IT5344874 A IT 5344874A IT 1021745 B IT1021745 B IT 1021745B
Authority
IT
Italy
Prior art keywords
deriving
procedures
improvement
production
product obtained
Prior art date
Application number
IT5344874A
Other languages
English (en)
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Application granted granted Critical
Publication of IT1021745B publication Critical patent/IT1021745B/it

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1042—Copolyimides derived from at least two different tetracarboxylic compounds or two different diamino compounds
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • 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
    • D01F6/74—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
IT5344874A 1973-10-12 1974-10-09 Perfezionamento nei procedimenti der la produzione di filamenti poliimmidi ci e prodotto ottenuto IT1021745B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40577773A 1973-10-12 1973-10-12

Publications (1)

Publication Number Publication Date
IT1021745B true IT1021745B (it) 1978-02-20

Family

ID=23605190

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5344874A IT1021745B (it) 1973-10-12 1974-10-09 Perfezionamento nei procedimenti der la produzione di filamenti poliimmidi ci e prodotto ottenuto

Country Status (6)

Country Link
JP (1) JPS5217133B2 (it)
CA (1) CA1035496A (it)
FR (1) FR2247556B1 (it)
GB (1) GB1432285A (it)
IT (1) IT1021745B (it)
NL (1) NL7413337A (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335028A (en) * 1976-09-13 1978-04-01 Asahi Chem Ind Co Ltd Special filament
JPS56159314A (en) * 1980-05-09 1981-12-08 Ube Ind Ltd Preparation of polyimide fiber
AT377016B (de) * 1983-03-09 1985-01-25 Chemiefaser Lenzing Ag Verfahren zur herstellung von schwer entflammbaren, hochtemperaturbestaendigen polyimidfasern
JPS6290314A (ja) * 1985-10-17 1987-04-24 Toray Ind Inc コポリイミド繊維
JPH07310232A (ja) * 1994-05-13 1995-11-28 Toyobo Co Ltd バグフィルター用ポリアミドイミド繊維
US6855425B2 (en) 2000-07-10 2005-02-15 Invista North America S.A.R.L. Polymer filaments having profiled cross-section
GB2364667A (en) * 2000-07-10 2002-02-06 Du Pont Polymer filaments having open hollow cross-section
CN116103779B (zh) * 2023-02-14 2024-04-12 江苏奥神新材料股份有限公司 一种高耐热聚酰亚胺纤维及其制备方法

Also Published As

Publication number Publication date
NL7413337A (nl) 1975-04-15
JPS5064522A (it) 1975-05-31
DE2442203B2 (de) 1976-06-24
FR2247556B1 (it) 1978-07-07
CA1035496A (en) 1978-07-25
GB1432285A (en) 1976-04-14
DE2442203A1 (de) 1975-04-17
JPS5217133B2 (it) 1977-05-13
FR2247556A1 (it) 1975-05-09

Similar Documents

Publication Publication Date Title
IT942258B (it) Procedimento ed apparecchio per la produzione di velli di filati sintetici e prodotto ottenuto
IT1024387B (it) Procedimento per la fabbricazione di materiali antidesivi e prodotto ottenuto
IT966175B (it) Perfezionamento nei procedimento per la fabbricazione di indumenti intimi a maglia e prodotto ottenuto
IT950650B (it) Perfezionamento nei tamponi chirurgici e procedimento di produzione
IT961340B (it) Procedimento per la produzione di filati e relativo prodotto
IT997575B (it) Perfezionamento nei procedimenti catalitici per la produzione di poliuretani
IT991953B (it) Perfezionamento nei procedimenti per la produzione di gettate in pressofusione rivestite e prodot to ottenuto
IT948764B (it) Procedimento per la produzione di schiuma polimerica e prodotto ottenuto
IT1035509B (it) Prodedimento per la produzone di filtri per sigarette e prodotto ottenuto
IT1021745B (it) Perfezionamento nei procedimenti der la produzione di filamenti poliimmidi ci e prodotto ottenuto
IT948402B (it) Polialchenameri e procedimento per la loro produzione
IT968192B (it) Perfezionamento nei complessi in lega e metodo per la produzione degli stessi
IT1008184B (it) Perfezionamento e procedimento di coagulazione di lattici sintetici
IT973741B (it) Perfezionamento nei procedimenti per la fabbricazione di rotaie e prodotto ottenuto
IT952020B (it) Procedimento per la produzione di coloranti ossazinici con gruppi arilammino e coloranti ottenuti
IT974292B (it) Procedimento per la produzione guarnizioni e prodotto ottenuto
IT972356B (it) Procedimento per la produzione di 2 cianoetil chetoni e prodotto ottenuto
IT1106059B (it) Cefem-derivati e procedimento per la loro produzione
IT1016316B (it) Poliottenameri e procedimento per la loro produzione
IT1003992B (it) Procedimento per la produzione di organosilani e prodotto ottenuto
IT1023495B (it) Perfezionamento nei procedimenti per la produzione di copolimeri eutadiene stirolo e prodotto ottenuto
IT1040516B (it) Procedimento per la produzione de indrossi piperidine sostituite e prodotto ottenuto
IT966743B (it) Perfezionamento nei procedimenti per la produzione di etilene e prodotto ottenuto
IT997763B (it) Procedimento ed apparecchio per la produzione di filati e prodotto ottenuto
IT1016404B (it) Procedimento per la produzione di disinfestanti colorati e prodotto ottenuto