BE512373A

BE512373A -

Info

Publication number: BE512373A
Authority: BE
Priority date: 1952-01-16
Also published as: LU31542A1; FR1063919A

Description

       

  MASSE OU MATIERE APPLICABLE AU PINCEAU OU A LA SPATULE.

  
Le procédé concerne une masse servant d'enduit formée d'un composé macromoléculaire, par conséquent une masse qui peut être appliquée au pinceau, à la spatule ou par projection Elle consiste essentiellement en une

  
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exemple, sont connus.en eux-mêmes.

  
Un but de l'invention est de modifier les propriétés de telles dispersions en fonction de leur usage. Par exemple des dispersions de polyé-

  
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L'invention convient particulièrement pour des dispersions de composés macromoléculaires qui ont d'abord été amenés à l'état de gel. Au cas ou l'on utilise des solvants pour les deux composés macromoléculaires, il est recommandé d'utiliser de ces solvants qui sont miscibles entre eux et peuvent être évaporés de la matière fabriquée finie à une température qui ne peut affecter de manière défavorable l'aptitude à l'emploi de la matiè-

  
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brication de la masse. Lorsqu'il est question dans ceux-ci d'un solvant, on englobe également le cas où plusieurs solvants sont utilisés pour la mise en solution. 

  
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froidissemento On disperse dans une machine appropriée ce gel avec 120 parties en poids de benzèneo On introduit dans cette dispersion une solution

  
à 50% de polyisobutylène ayant un poids moléculaire d'environ 2000000 et on

  
mélange intimement au moyen d'une machine appropriée La matière obtenue

  
se prête à l'application par projection sur des matières de support.

  
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dissement jusqu'à ce qu'on obtiennen une dispersion. A l'instant où certaines particules individuelles solides de polyéthylène précipitent à partir de

  
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sur un support. 

  
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l'acétate d'éthyle, on ajoute tout en agitant 30 po de polystyrène, à l'état

  
de poudre fine et on homogénise au moyen d'une machine appropriée On obtient

  
une pâte qui se prête à l'application au pinceau ou à la spatule.

REVENDICATIONS.

  
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projection, caractérisées par la dispersion d'un composé macromoléculaire dans

  
une solution d'un composé organique macromoléculaire dans un solvant organique.

  
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  MASS OR MATERIAL APPLICABLE TO A BRUSH OR A SPATULA.

  
The process relates to a mass serving as a coating formed of a macromolecular compound, therefore a mass which can be applied with a brush, a spatula or by spraying It consists essentially of a

  
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example, are known in themselves.

  
An aim of the invention is to modify the properties of such dispersions as a function of their use. For example dispersions of poly-

  
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The invention is particularly suitable for dispersions of macromolecular compounds which have first been made gel. In case solvents are used for the two macromolecular compounds, it is recommended to use such solvents which are miscible with each other and can be evaporated from the finished manufactured material at a temperature which cannot adversely affect the temperature. suitability for use of the material

  
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brication of the mass. When a solvent is mentioned therein, it also covers the case where several solvents are used for the dissolution.

  
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refrigeration o This gel is dispersed in a suitable machine with 120 parts by weight of benzene o A solution is introduced into this dispersion

  
50% polyisobutylene having a molecular weight of approximately 2,000,000 and

  
thoroughly mixed using a suitable machine The material obtained

  
suitable for application by spraying onto support materials.

  
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dying until a dispersion is obtained. At the instant when some solid individual particles of polyethylene precipitate from

  
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on a support.

  
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ethyl acetate, 30 inches of polystyrene is added while stirring, as

  
of fine powder and homogenized by means of a suitable machine.

  
a paste that is suitable for application with a brush or spatula.

CLAIMS.

  
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projection, characterized by the dispersion of a macromolecular compound in

  
a solution of a macromolecular organic compound in an organic solvent.

  
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Claims

first mentioned macromolecular compound is a solution of a macromolecular organic compound in an organic solvent.

first mentioned macromolecular compound is a gel.

that the first macromolecular compound mentioned is a maleomolecular ethylene

claims 1 to 5, characterized in that a macromolecular compound, for example high molecular weight ethylene, is dissolved in a solvent

organic, in that it is converted into a gel and this gel is dispersed in a solvent; in that then a macromolecular organic compound is dissolved in a solvent miscible with the first mentioned solvent, and in that the first mentioned dispersion and the last mentioned solution are mixed together.

lecular, for example, high molecular weight ethylene, in an organic solvent, converting it to a gel and dispersing this gel in an organic solvent, and dissolving an organic macromolecular compound in this dispersion.

that the same solvent is used for both solutions.

which separates from the dispersion, advantageously mechanically, a substantial part of the solvent.

the separated solvent is replaced, at least in part, by another dispersing agent.

Claims 1 to 5, characterized in that a powdered macromolecular compound, for example a high molecular weight ethylene, is dispersed in a solution of a macromolecular compound in an organic solvent