BE638737A - - Google Patents

Info

Publication number
BE638737A
BE638737A BE638737DA BE638737A BE 638737 A BE638737 A BE 638737A BE 638737D A BE638737D A BE 638737DA BE 638737 A BE638737 A BE 638737A
Authority
BE
Belgium
Prior art keywords
emi
foam
dispersions
solutions
oleic acid
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 BE638737A publication Critical patent/BE638737A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/22Di-epoxy compounds
    • C08G59/24Di-epoxy compounds carbocyclic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/06Unsaturated polyesters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)

Description

       

   <EMI ID=1.1> 

  
 <EMI ID=2.1>  

  
Les solutions et les dispersions aqueuses de liante sont utilisées depuis longtemps pour l'imprégnation, le collage, le revêtement et le laquage d'objets de tous genres* Lors de l'application des solutions ou des dispersions, par exemple par pulvérisation, par coulée ou au plongé, il est toutefois très gênant qu'elles moussent souvent fortement ; les Imprégnations  peuvent ainsi présenter des endroits non étanohea, les collages sont irréguliers ou bien les peintures montrent à leur surface  des bulles ou des cavités. On peut, il est vraie avoir recours 

  
 <EMI ID=3.1> 

  
d'également et de mouillage* 

  
Or on a trouvé qu'on peut réduire la tendance au 

  
 <EMI ID=4.1> 

  
tant de la formation de mousse*

  
 <EMI ID=5.1> 

  
dance au moussage peut être diminuée suivant le présent procédé, entrent en ligne de compte les solutions et les dispersions aqueuses de substances macromoléculaires naturelles, demisynthétiques ou synthétiques utilisées comme collée, agents d'imprégnation et liante pour vernie, par exemple celles de

  
 <EMI ID=6.1>   <EMI ID=7.1> 

  
L'efficacité du présent procédé n'est guère influencée par les autres tuba tances, telles que charges" pipent., est*-

  
 <EMI ID=8.1> 

  
les solutions et les dispersions*

  
Le procédé conforme à la présente invention peut,

  
 <EMI ID=9.1> 

  
pas trop rapidement, il est indiqué d'utiliser conjointement des stabilisants de mousse, avantageusement à raison d'environ 0,2 à 10 % en poids rapportée à la teneur en liant de la solo*  tion ou de la dispersion.

  
 <EMI ID=10.1>  notamment, d'acide oléique d'une part, et d'éthanolamine et de  diéthanolamine d'autre part*

  
On a constaté qu'il est particulièrement avantage)"  d'utiliser conjointement, en plus des stabilisants, des composés de chrome-VI solubles ou insolubles dans l'eau, télé que le

  
 <EMI ID=11.1> 

  
 <EMI ID=12.1> 

  
 <EMI ID=13.1> 

  
la dispersion"

  
La mousse étant, immédiatement après sa formation, 

  
très fine et ainsi difficile à éliminer, il est le plus souvent

  
 <EMI ID=14.1> 

  
temps que leur nombre a diminué.

  
On peut enlever la mousse, par exemple, par écumage ou" avantageusement en faisant s'écouler avec précaution la solution

  
 <EMI ID=15.1> 

  
à mailles fines.

  
Ces solutions et les dispersions peuvent encore renfermer d'autres substances, telles que charges, pigments catalyseurs de durcissement et autres auxiliaires. Il est souvent indiqué de n'opérer que lorsque les solutions ou les dispersions renferment tous leurs constituants. 

  
On a été particulièrement surpris de constater que les 

  
 <EMI ID=16.1> 

  
*noèse par le traitement préalable suivant la présente invention. 8'est ainsi, par exemple, qu'on pouvait s'attendre à ce que la mousse éliminât les dispersante contenus dans les dispersions,

  
 <EMI ID=17.1>  

  
 <EMI ID=18.1> 

  
 <EMI ID=19.1> 

  
 <EMI ID=20.1> 

  
 <EMI ID=21.1> 

  
 <EMI ID=22.1> 

  
 <EMI ID=23.1> 

  
suivants*

  
 <EMI ID=24.1> 

  
 <EMI ID=25.1> 

  
par un *tuai@

  
 <EMI ID=26.1> 

  
sont en poids*

  
 <EMI ID=27.1> 

  
 <EMI ID=28.1> 

  
 <EMI ID=29.1> 

  
 <EMI ID=30.1> 

  
Aspect de la surface

  
 <EMI ID=31.1> 

  
formation de bulles, de cavités et de fissures*

  
 <EMI ID=32.1> 

  
 <EMI ID=33.1> 

  
 <EMI ID=34.1> 

  
 <EMI ID=35.1> 

  
 <EMI ID=36.1>  

  
 <EMI ID=37.1> 

  
 <EMI ID=38.1> 

  
 <EMI ID=39.1> 

  
 <EMI ID=40.1> 

  
 <EMI ID=41.1> 

  
 <EMI ID=42.1> 

  
 <EMI ID=43.1> 

  
 <EMI ID=44.1> 

  
qui se forme n'est pas séparée  <EMI ID=45.1> 

  
 <EMI ID=46.1> 

  
laisse reposer pendant 4 heures ; pour séparer la mousse, on fait passer à travers un tamis métallique (diamètre des   <EMI ID=47.1> 

  
 <EMI ID=48.1> 

  
 <EMI ID=49.1> 

  
la mousse comme décrit aoua (b).

  
 <EMI ID=50.1> 

  
 <EMI ID=51.1> 

  
 <EMI ID=52.1> 

  
 <EMI ID=53.1> 

  
 <EMI ID=54.1> 

  

 <EMI ID=55.1> 


  
 <EMI ID=56.1>   <EMI ID=57.1> 

  
rapport dea monomères de 68 parties d'acrylate de butyle pour 

  
 <EMI ID=58.1> 

  
 <EMI ID=59.1> 

  
de condensation d'un rapport de 1 mole de mélanine pour 5 moles

  
 <EMI ID=60.1>  a) de 40 parties de pigment type rutile et de 100 parties d'eau, puis sont traitées comme décrit sous (la) b) de 1 partie de bichromate d'ammonium et de 5 partiea d'un produit de condensation & base d'acide oléique et d'éthanola-

  
 <EMI ID=61.1>  c) traitée* comme décrit noue (le) et(2b). 

  
 <EMI ID=62.1>  

  
 <EMI ID=63.1> 

  
 <EMI ID=64.1> 

  

 <EMI ID=65.1> 


  
 <EMI ID=66.1>  

  
 <EMI ID=67.1> 

  

 <EMI ID=68.1> 


  
 <EMI ID=69.1> 

  
 <EMI ID=70.1>  Les revêtements obtenue a partir de ces verni" sur

  
de la tôle, présentent Ion propriétés indiquée* dans le tableau

  
 <EMI ID=71.1> 

  

 <EMI ID=72.1> 


  
 <EMI ID=73.1> 

  
 <EMI ID=74.1> 

  
 <EMI ID=75.1> 

  
 <EMI ID=76.1> 

  
 <EMI ID=77.1> 

  
 <EMI ID=78.1> 

  
rutile et d'environ 120 partie d'eau  a) ne sont pas traitées ultérieurement  <EMI ID=79.1> 



   <EMI ID = 1.1>

  
 <EMI ID = 2.1>

  
Aqueous binder solutions and dispersions have long been used for impregnating, bonding, coating and lacquering objects of all kinds * When applying solutions or dispersions, for example by spraying, by casting or when diving, it is however very inconvenient that they often foam strongly; the impregnations can thus present places which are not etanohea, the bondings are irregular or else the paints show bubbles or cavities on their surface. We can, it is true to have recourse

  
 <EMI ID = 3.1>

  
equalization and wetting *

  
We have found that we can reduce the tendency to

  
 <EMI ID = 4.1>

  
both foaming *

  
 <EMI ID = 5.1>

  
foaming performance can be reduced according to the present process, taking into account aqueous solutions and dispersions of natural, semi-synthetic or synthetic macromolecular substances used as glue, impregnating agents and binder for varnishes, for example those of

  
 <EMI ID = 6.1> <EMI ID = 7.1>

  
The efficiency of the present process is hardly influenced by other tuba tances, such as "pipent." Fillers, is * -

  
 <EMI ID = 8.1>

  
solutions and dispersions *

  
The method according to the present invention can,

  
 <EMI ID = 9.1>

  
not too quickly, it is advisable to use foam stabilizers together, preferably in an amount of about 0.2 to 10% by weight based on the binder content of the solo * tion or the dispersion.

  
 <EMI ID = 10.1> in particular, oleic acid on the one hand, and ethanolamine and diethanolamine on the other hand *

  
It has been found that it is particularly advantageous) "to use together, in addition to stabilizers, chromium-VI compounds soluble or insoluble in water, such as

  
 <EMI ID = 11.1>

  
 <EMI ID = 12.1>

  
 <EMI ID = 13.1>

  
the dispersion"

  
The foam being, immediately after its formation,

  
very fine and thus difficult to remove, it is most often

  
 <EMI ID = 14.1>

  
time that their number has decreased.

  
The foam can be removed, for example, by skimming or "advantageously by carefully draining the solution.

  
 <EMI ID = 15.1>

  
fine mesh.

  
These solutions and dispersions may also contain other substances, such as fillers, curing catalyst pigments and other auxiliaries. It is often advisable to operate only when the solutions or dispersions contain all their constituents.

  
We were particularly surprised to find that the

  
 <EMI ID = 16.1>

  
* noesis by the pretreatment according to the present invention. This is how, for example, the foam could be expected to remove the dispersants contained in the dispersions,

  
 <EMI ID = 17.1>

  
 <EMI ID = 18.1>

  
 <EMI ID = 19.1>

  
 <EMI ID = 20.1>

  
 <EMI ID = 21.1>

  
 <EMI ID = 22.1>

  
 <EMI ID = 23.1>

  
following *

  
 <EMI ID = 24.1>

  
 <EMI ID = 25.1>

  
by a * tuai @

  
 <EMI ID = 26.1>

  
are by weight *

  
 <EMI ID = 27.1>

  
 <EMI ID = 28.1>

  
 <EMI ID = 29.1>

  
 <EMI ID = 30.1>

  
Surface appearance

  
 <EMI ID = 31.1>

  
formation of bubbles, cavities and cracks *

  
 <EMI ID = 32.1>

  
 <EMI ID = 33.1>

  
 <EMI ID = 34.1>

  
 <EMI ID = 35.1>

  
 <EMI ID = 36.1>

  
 <EMI ID = 37.1>

  
 <EMI ID = 38.1>

  
 <EMI ID = 39.1>

  
 <EMI ID = 40.1>

  
 <EMI ID = 41.1>

  
 <EMI ID = 42.1>

  
 <EMI ID = 43.1>

  
 <EMI ID = 44.1>

  
which forms is not separated <EMI ID = 45.1>

  
 <EMI ID = 46.1>

  
let stand for 4 hours; to separate the foam, pass through a metal screen (diameter of <EMI ID = 47.1>

  
 <EMI ID = 48.1>

  
 <EMI ID = 49.1>

  
the foam as described in aoua (b).

  
 <EMI ID = 50.1>

  
 <EMI ID = 51.1>

  
 <EMI ID = 52.1>

  
 <EMI ID = 53.1>

  
 <EMI ID = 54.1>

  

 <EMI ID = 55.1>


  
 <EMI ID = 56.1> <EMI ID = 57.1>

  
ratio of monomers of 68 parts of butyl acrylate to

  
 <EMI ID = 58.1>

  
 <EMI ID = 59.1>

  
of condensation of a ratio of 1 mole of melanin to 5 moles

  
 <EMI ID = 60.1> a) 40 parts of rutile type pigment and 100 parts of water, then are treated as described under (la) b) 1 part of ammonium dichromate and 5 parta of a product of condensation & base of oleic acid and ethanol-

  
 <EMI ID = 61.1> c) processed * as described in (le) and (2b).

  
 <EMI ID = 62.1>

  
 <EMI ID = 63.1>

  
 <EMI ID = 64.1>

  

 <EMI ID = 65.1>


  
 <EMI ID = 66.1>

  
 <EMI ID = 67.1>

  

 <EMI ID = 68.1>


  
 <EMI ID = 69.1>

  
 <EMI ID = 70.1> The coatings obtained from these varnishes "on

  
of the sheet, have the properties indicated * in the table

  
 <EMI ID = 71.1>

  

 <EMI ID = 72.1>


  
 <EMI ID = 73.1>

  
 <EMI ID = 74.1>

  
 <EMI ID = 75.1>

  
 <EMI ID = 76.1>

  
 <EMI ID = 77.1>

  
 <EMI ID = 78.1>

  
rutile and about 120 parts of water a) are not further processed <EMI ID = 79.1>


    

Claims (1)

stabilisant de mousse, agitée pendant 16 heures dans un moulin <EMI ID=80.1> foam stabilizer, stirred for 16 hours in a mill <EMI ID = 80.1> <EMI ID=81.1> <EMI ID = 81.1> <EMI ID=82.1> <EMI ID = 82.1> <EMI ID=83.1> <EMI ID = 83.1> <EMI ID=84.1> <EMI ID = 84.1> <EMI ID=85.1> <EMI ID = 85.1> <EMI ID=86.1> <EMI ID = 86.1> Dans ce cas également, on constate nettement 1* action favorable du traitement préalable suivant la présente inventif In this case also, the favorable action of the prior treatment according to the present invention is clearly seen. <EMI ID=87.1> <EMI ID = 87.1> <EMI ID=88.1> <EMI ID = 88.1> solutions et dispersions aqueuses de liants" caractérisé en ce aqueous solutions and dispersions of binders "characterized in that <EMI ID=89.1> <EMI ID = 89.1> lisant de mousse" et on sépare la mousse stable qui, se fonce. <EMI ID=90.1> reading foam "and separating the stable foam which darkens. <EMI ID = 90.1> préférence d'un produit de condensation à bas* d'acide oléique preferably a low * oleic acid condensation product <EMI ID=91.1> <EMI ID = 91.1> Procédé suivant l'une ou l'autre des revendications Process according to either of the claims <EMI ID=92.1> <EMI ID = 92.1> <EMI ID=93.1> <EMI ID = 93.1> substances solides des solutions ou des dispersions* de composée de chrome VI. solid substances in solutions or dispersions * of chromium VI compound.
BE638737D 1963-10-16 BE638737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR950784A FR1371637A (en) 1963-10-16 1963-10-16 Polyesters for the production of moldings and light-stable coatings

Publications (1)

Publication Number Publication Date
BE638737A true BE638737A (en)

Family

ID=8814508

Family Applications (2)

Application Number Title Priority Date Filing Date
BE638737D BE638737A (en) 1963-10-16
BE638736D BE638736A (en) 1963-10-16

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE638736D BE638736A (en) 1963-10-16

Country Status (3)

Country Link
BE (2) BE638736A (en)
FR (1) FR1371637A (en)
NL (1) NL299246A (en)

Also Published As

Publication number Publication date
BE638736A (en)
NL299246A (en)
FR1371637A (en) 1964-09-04

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