BE446308A - - Google Patents

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Publication number
BE446308A
BE446308A BE446308DA BE446308A BE 446308 A BE446308 A BE 446308A BE 446308D A BE446308D A BE 446308DA BE 446308 A BE446308 A BE 446308A
Authority
BE
Belgium
Prior art keywords
solvents
emi
lactams
plasticizers
linear polymers
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE446308A publication Critical patent/BE446308A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/16Nitrogen-containing compounds
    • C08K5/34Heterocyclic compounds having nitrogen in the ring
    • C08K5/3412Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring

Landscapes

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

Description

       

   <EMI ID=1.1> 

  
 <EMI ID=2.1> 

  
Le façonnage de toute une série de polymères linéaires supérieurs connus en forme de films, de fibres et d'autres produits constitue un problème technique qui, jusqu'à présent, n'a pas été résolu de façon entièrement satisfaisante, car pour différents de ces composés, les solvants et les plastifiants

  
ne donnent aucun résultat ou bien encore, pour l'une ou l'autre

  
de ces matières artificielles, les solvants connus sont, soit

  
trop chers, soit trop difficiles à régénérer. Dans d'autres cas,

  
les solvants connus jusqu'à présent ont ,une forte action corrosive ou sont très nuisibles pour la santé ou présentent un grand danger d'incendie. Les polymères linéaires supérieurs auxquels s'applique ce qui vient d'être dit, sous l'une ou l'autre forme, sont par exemple le polyacylnitrile, le chlorure de polyvinyle, le polydichloréthylène, le chlorure de polyvinyle qui a subi

  
un postchlorage à des points de ramollissement supérieurs à
100[deg.], le polyvinylcarbazol, le polystyrol, la polyamide, le triacétate de cellulose et d'autres.

  
La Demanderesse a trouvé qu'il existe pour les groupes entièrement différents de matières artificielles qui viennent d'être mentionnées, des solvants et des plastifiants extrêmement efficaces parmi les lactames des acides amino-carboxyliques.

  
 <EMI ID=3.1> 

  
done, qui récemment est devenu d'un accès relativement facile au point de vue industriel, possède un pouvoir dissolvant extrêmement varié qui permet de préparer sans difficulté des solutions à pourcentages élevés de la plupart des matières artificielles qui viennent d'être citées. Cependant, ce pouvoir dissolvant varié n'est pas limité au pyrrolidone; les homologues supérieurs tels que la cétopipéridine, la cétopyridine, le caprolactame, entre autres, possèdent la même propriété favorable. Est digne de mention, en outre, le fait que ces composés ne doivent pas être employés comme solvants à l'état pur,, étant donné qu'ils sont miscibles avec le plus grand nombre des solvants organiques connus jusqu'à l'heure actuelle, peuvent être,

  
 <EMI ID=4.1> 

  
On réalise encore, ainsi que les observations l'ont démontré, une augmentation du pouvoir de dissolution des lactames

  
 <EMI ID=5.1> 

  
en le substituant par d'autres courts radicaux aliphatiques;

  
il est indifférent dans ce cas que la substitution se fasse sur le carbone ou sur l'azote du noyau lactame. Se sont montrés particulièrement efficaces, par exemple, le N-mêthylpyrrolidone et le N-éthylpyrrolidone. 

  
Alors que jusqu'à présent les lactames connus devaient être considérés surtout comme des solvants, car ils sont pour la plupart liquides à la température ordinaire et ont aussi des points d'ébullition relativement bas, les lactames à sub-

  
 <EMI ID=6.1> 

  
longs doivent être considérés comme des plastifiants excellents. Les laotames substitués de l'espèce sont, par exemple, le N-

  
 <EMI ID=7.1> 

  
artificielles qui doivent être ramollies par pétrissage ou laminage avec le secours de la chaleur à raison de quantités allant jusqu'à 50 %, ce qui plastifie les polymères supérieurs

  
et permet de travailler ensuite ceux-ci plus facilement. Exactement comme on l'a déjà dit plus haut à propos de l'emploi comme solvants, il n'est pas nécessaire non plus, dans ce cas, d'employer des lactames à l'état pur; il suffit souvent d'employer d'autres solvants et d'y ajouter des lactames.

  
 <EMI ID=8.1> 

  
tames n'est nullement limité aux polymères linéaires supérieurs mentionnés à l'origine, mais qu'un grand nombre encore d'autres

  
 <EMI ID=9.1> 

  
vants et de plastifiants revendiqué par la présente demande de brevet.



   <EMI ID = 1.1>

  
 <EMI ID = 2.1>

  
The shaping of a whole series of known superior linear polymers into films, fibers and other products constitutes a technical problem which, heretofore, has not been solved entirely satisfactorily, since for various of these compounds, solvents and plasticizers

  
give no result or else, for one or the other

  
of these artificial materials, the known solvents are either

  
too expensive or too difficult to regenerate. In other cases,

  
the solvents known hitherto have a strong corrosive action or are very harmful to health or present a great fire danger. The higher linear polymers to which what has just been said applies, in one or the other form, are for example polyacylnitrile, polyvinyl chloride, polydichlorethylene, polyvinyl chloride which has undergone

  
post-chlorination at softening points greater than
100 [deg.], Polyvinylcarbazol, polystyrol, polyamide, cellulose triacetate and others.

  
We have found that for the entirely different groups of artificial materials just mentioned, extremely effective solvents and plasticizers exist among the lactams of amino carboxylic acids.

  
 <EMI ID = 3.1>

  
therefore, which has recently become relatively easy to access from an industrial point of view, possesses an extremely varied dissolving power which makes it possible without difficulty to prepare high percentage solutions of most of the artificial materials which have just been mentioned. However, this varied dissolving power is not limited to pyrrolidone; higher homologs such as ketopiperidine, ketopyridine, caprolactam, among others, possess the same favorable property. Also worthy of mention is the fact that these compounds should not be used as solvents in the pure state, given that they are miscible with most of the organic solvents known until now. , can be,

  
 <EMI ID = 4.1>

  
We still realize, as observations have shown, an increase in the dissolving power of lactams

  
 <EMI ID = 5.1>

  
substituting it with other short aliphatic radicals;

  
it is irrelevant in this case whether the substitution is made on the carbon or on the nitrogen of the lactam nucleus. Particularly effective have been shown, for example, N-methylpyrrolidone and N-ethylpyrrolidone.

  
Whereas until now the known lactams had to be considered mainly as solvents, since they are mostly liquid at room temperature and also have relatively low boiling points, the sub- lactams

  
 <EMI ID = 6.1>

  
long should be regarded as excellent plasticizers. The substituted laotams of the species are, for example, the N-

  
 <EMI ID = 7.1>

  
which are to be softened by kneading or rolling with the aid of heat in amounts of up to 50%, which plasticizes the higher polymers

  
and allows these to be worked on more easily. Exactly as has already been said above with regard to the use as solvents, it is also not necessary, in this case, to use lactams in the pure state; it is often sufficient to use other solvents and add lactams to them.

  
 <EMI ID = 8.1>

  
tames is by no means limited to the higher linear polymers originally mentioned, but many more

  
 <EMI ID = 9.1>

  
vants and plasticizers claimed by the present patent application.


    

Claims (1)

REVENDICATION-. CLAIM-. Façonnage des polymères linéaires supérieurs, caractérisé par le fait que l'on emploie comme solvants ou comme plastifiants des lactames, seuls ou en mélange avec d'autres composés. Forming higher linear polymers, characterized in that lactams are used as solvents or as plasticizers, alone or in admixture with other compounds.
BE446308D 1941-07-04 BE446308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE883763X 1941-07-04

Publications (1)

Publication Number Publication Date
BE446308A true BE446308A (en)

Family

ID=6832195

Family Applications (1)

Application Number Title Priority Date Filing Date
BE446308D BE446308A (en) 1941-07-04

Country Status (3)

Country Link
BE (1) BE446308A (en)
FR (1) FR883763A (en)
NL (1) NL59414C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553944A2 (en) * 1992-01-31 1993-08-04 Karl Fischer Industrieanlagen Gmbh Melts of polyurethane and/or polyurethane urea elastomer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932692C (en) * 1949-08-18 1955-09-08 Glanzstoff Ag Process for the production of artificial structures from polyvinyl chloride or copolymers of vinyl chloride
NL182627B (en) * 1953-01-26 Castolin Sa CONSUMABLE MANUAL WELDING ELECTRODE.
US2958677A (en) * 1955-05-10 1960-11-01 Phillips Petroleum Co Purification of polymers of the polyamide type
DE1035895B (en) * 1956-03-05 1958-08-07 Bayer Ag Process for the production of odor-free molded structures from polyvinyl chloride or polyvinyl chloride copolymers
US3166429A (en) * 1958-04-22 1965-01-19 Gen Aniline & Film Corp Pigmented coating compositions containing pyrrolidone compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553944A2 (en) * 1992-01-31 1993-08-04 Karl Fischer Industrieanlagen Gmbh Melts of polyurethane and/or polyurethane urea elastomer
EP0553944A3 (en) * 1992-01-31 1993-09-15 Karl Fischer Industrieanlagen Gmbh Melts of polyurethane and/or polyurethane urea elastomer

Also Published As

Publication number Publication date
NL59414C (en)
FR883763A (en) 1943-07-16

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