ES218247A1 - Procedimiento de obtencion de nuevas poliamidas sinteticas - Google Patents

Procedimiento de obtencion de nuevas poliamidas sinteticas

Info

Publication number
ES218247A1
ES218247A1 ES0218247A ES218247A ES218247A1 ES 218247 A1 ES218247 A1 ES 218247A1 ES 0218247 A ES0218247 A ES 0218247A ES 218247 A ES218247 A ES 218247A ES 218247 A1 ES218247 A1 ES 218247A1
Authority
ES
Spain
Prior art keywords
relating
mols
linear polyamides
adipic
acid
Prior art date
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.)
Expired
Application number
ES0218247A
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES218247A1 publication Critical patent/ES218247A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/265—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids from at least two different diamines or at least two different dicarboxylic acids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0831—Compensation of the diversity switching process for non-uniform properties or faulty operations of the switches used in the diversity switching process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)

Abstract

Procedimiento de obtención de nuevas poliaridas sintéticas, caracterizado porque la diarina empleada en la fabricación de las mismas es la forma sólida de los isómeros mezclados de bis (p-aminociclohexil)-metano, y el ácido dicarboxílico es una mezcla de ácidos adípico y sebácico dentro del orden de proporciones de 77,5 a 12,5 mols de ácido adípico por 100 mols, deácido sebácico.
ES0218247A 1953-11-16 1954-11-05 Procedimiento de obtencion de nuevas poliamidas sinteticas Expired ES218247A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3167753A GB760025A (en) 1953-11-16 1953-11-16 Improvements in or relating to linear polyamides

Publications (1)

Publication Number Publication Date
ES218247A1 true ES218247A1 (es) 1955-06-01

Family

ID=38524561

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0218247A Expired ES218247A1 (es) 1953-11-16 1954-11-05 Procedimiento de obtencion de nuevas poliamidas sinteticas

Country Status (5)

Country Link
BE (1) BE533330A (es)
ES (1) ES218247A1 (es)
FR (1) FR1118435A (es)
GB (1) GB760025A (es)
NL (1) NL83393C (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732928A1 (de) * 1977-07-21 1979-02-01 Bayer Ag Transparente polyamide
DE2737257A1 (de) * 1977-08-18 1979-03-01 Bayer Ag Transparente polyamide
DE2855928A1 (de) * 1978-12-23 1980-07-10 Bayer Ag Neue copolyamide

Also Published As

Publication number Publication date
BE533330A (es) 1958-04-11
FR1118435A (fr) 1956-06-05
NL83393C (es) 1956-11-15
GB760025A (en) 1956-10-31

Similar Documents

Publication Publication Date Title
GT197535601A (es) Composiciones para la limpieza.
FR1112203A (fr) Superpolymères linéaires de diamines mixtes
AT168833B (de) Verfahren zur Herstellung von Düngemitteln mit verbesserter Lagerfähigkeit
ES218247A1 (es) Procedimiento de obtencion de nuevas poliamidas sinteticas
ES196380A1 (es) PROCEDIMIENTO PARA LA OBTENCIoN DE NUEVAS POLIAMIDAS
CH364114A (de) Verfahren zur Herstellung von Mischpolyamiden
CH524372A (de) Verfahren zur Herstellung von stabilen Elixieren, welche therapeutisch verwendbare tricyclische basische Wirkstoffe in Form ihrer Mononatriumpamoate enthalten
CH467249A (de) Verfahren zur Herstellung neuer wasserlöslicher stabiler Salze von basisch substituierten Azulensulfonsäureamiden
CH349074A (de) Verfahren zur Herstellung von weichmacherhaltigen synthetischen linearen Polyamiden
FR1022855A (fr) Perfectionnements à la dissolution des polyamides linéaires synthétiques
CH362848A (de) Verfahren zur kontinuierlichen Herstellung von linearen Polyamiden aus Dicarbonsäuren und Diaminen bzw. Dicarbonsäure-Diamin-Salzen
ES212101A1 (es) Procedimiento para la obtencion de poliamidas sintéticas
FR60256E (fr) Perfectionnements à la dissolution des polyamides linéaires synthétiques
ES369084A1 (es) Procedimiento para la separacion, a partir de sales, de unamezcla de los estereoisomeros de 4,4-diaminodiciclohexilme- tano con acidos dicarboxilicos, sales conteniendo una por- cion aumentada de la sal de isomero trans-trans.
AT170599B (de) Streifenraster für Röntgenstrahlen zur Herstellung von Ives'schen Parallaxstereogrammen
CH293101A (de) Verfahren zur Herstellung von Natriumpyrophosphatperhydrat.
IT1050361B (it) Procedimento per la fabbricazione di n n dietil m toluammide col procedimento in soluzione acquosa caustica
GB817174A (en) Improvements in or relating to herbicidal mixtures
ES152489A2 (es) MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE Ns 152467
GB800452A (en) Improvements relating to the manufacture of lengths of synthetic plastic material
DK61724C (da) Fremgangsmaade til Fremstilling af lineære Polyamider med Amidgrupper i Kæden.
FR848769A (fr) Tissu mixte comprenant des fils artificiels azotés
ES180809A2 (es) PROCEDIMIENTO PARA LA OBTENCIoN DE ANDROSTANOLONAS SUSTITUIDAS EN 17 POSICIoN, SATURADAS NO SATURADAS, Y SUS DERIVADOS
FR870257A (fr) Procédé de préparation de polyamides linéaires
ES183009A1 (es) Procedimiento para obtener un producto impermeabilizante aplicable a la industria textil