BE622672A - - Google Patents

Info

Publication number
BE622672A
BE622672A BE622672DA BE622672A BE 622672 A BE622672 A BE 622672A BE 622672D A BE622672D A BE 622672DA BE 622672 A BE622672 A BE 622672A
Authority
BE
Belgium
Prior art keywords
emi
water
groups
copolymer
insoluble
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 BE622672A publication Critical patent/BE622672A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00Chemical modification by after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

       

  "Procédé de préparation de copolymères contenant des groupe* 

  
 <EMI ID=1.1> 

  
L'objet de la présente invention est un procédé

  
 <EMI ID=2.1> 

  
que$ dont les sels Alcalins et d'ammonium sont hydrosolubles, 

  
à partir de copolymères peu solubles dans l'eau* 

  
Selon les procédés connus jusqu'ici on peut, en

  
 <EMI ID=3.1>  boxyliquea suivant deux méthodes 

  
1) par copolymérisation de composés insaturés avec des acides

  
 <EMI ID=4.1> 

  
mères, qui conservent la structure essentielle de la macromolécule, réactions dites topochimiques, ces réactions se 

  
 <EMI ID=5.1> 

  
liques d'alcool à bas poids moléculaire ou de copolymères  de tels esters acryliques*

  
 <EMI ID=6.1> 

  
talité, en acide polyacrylique correspondant.

  
 <EMI ID=7.1> 

  
boxyliquee, à l'aide de composés alcalins, les éléments essentiels de la structure de la. macromolécule restant inaltérée*

  
 <EMI ID=8.1>  i  <EMI ID=9.1> 

  
de carbone. 

  
Comme composée alcalins on utilise des hydroxyde*  alcalins ou des amines ou des sels d'ammonium quaternaires de 

  
 <EMI ID=10.1>  

  
 <EMI ID=11.1> 

  
drolyse au ralentissement du courant d'ammoniaque. 

  
La proportion d'ammoniaque libroqui reste dans la  solution du produit 4 l'état dissous lorsque l'hydrolyse est  terminée n'est pas gênante dans le traitement ultérieur de la solution, 

  
Les solutions des copolymères hydrolyses sont, normalement, traitées avec des acides minéraux dilués, ce qui

  
 <EMI ID=12.1> 

  
pur et finement divisé.

  
Le procédé objet de Invention déplace fortement

  
 <EMI ID=13.1> 

  
du copolymère de départ.

  
La formation de troupes carboxylique% libres conduit à une bonne solubilité des produits, par exemple dans des mélangea d'eau et d'alcool.

  
 <EMI ID=14.1> 

  
des, ainsi qu'à motifs polymères hydrophobes.

  
D'un point de vue technique il est avantageux de combiner ces trois motifs polymères parce que lesdits groupes peuvent réagir ultérieurement les uns uvec les autres et/ou
-avec des composés fonctionnels ajoutés.

  
 <EMI ID=15.1>   <EMI ID=16.1> 

  
pour les soins des cheveux. 

  
le" exemples qui suivent illustrent la présente 

  
 <EMI ID=17.1> 

  
t

  
 <EMI ID=18.1> 

  
284 parties d'eau, 

  
On fait bouillir le Mélange pendant 7 heures au  reflux, avec dégageaient d'ammoniaque à l'état gazeux. 

  
Après refroidissement la charge est diluée avec  un double volume d'eau et additionnée d'acide chlorhydrique 

  
 <EMI ID=19.1> 



  "Process for the preparation of copolymers containing groups *

  
 <EMI ID = 1.1>

  
The object of the present invention is a process

  
 <EMI ID = 2.1>

  
that $ whose alkaline and ammonium salts are water-soluble,

  
from poorly water-soluble copolymers *

  
According to the methods known hitherto it is possible, in

  
 <EMI ID = 3.1> boxy following two methods

  
1) by copolymerization of unsaturated compounds with acids

  
 <EMI ID = 4.1>

  
mothers, which retain the essential structure of the macromolecule, so-called topochemical reactions, these reactions are

  
 <EMI ID = 5.1>

  
liquids of low molecular weight alcohol or copolymers of such acrylic esters *

  
 <EMI ID = 6.1>

  
tality, in corresponding polyacrylic acid.

  
 <EMI ID = 7.1>

  
boxyliquee, with the help of alkaline compounds, the essential elements of the structure of the. macromolecule remaining unaltered *

  
 <EMI ID = 8.1> i <EMI ID = 9.1>

  
of carbon.

  
As alkaline compounds, alkali hydroxides * or amines or quaternary ammonium salts of

  
 <EMI ID = 10.1>

  
 <EMI ID = 11.1>

  
drolysis when the ammonia flow slows down.

  
The proportion of libro ammonia which remains in the solution of product 4 in the dissolved state when the hydrolysis is complete is not a problem in the subsequent treatment of the solution,

  
Solutions of the hydrolyzed copolymers are normally treated with dilute mineral acids, which

  
 <EMI ID = 12.1>

  
pure and finely divided.

  
The process object of the invention strongly displaces

  
 <EMI ID = 13.1>

  
of the starting copolymer.

  
The formation of% free carboxylic troops leads to good solubility of the products, for example in water and alcohol mixtures.

  
 <EMI ID = 14.1>

  
des, as well as hydrophobic polymer units.

  
From a technical point of view it is advantageous to combine these three polymer units because said groups can subsequently react with each other and / or
-with added functional compounds.

  
 <EMI ID = 15.1> <EMI ID = 16.1>

  
for hair care.

  
the "following examples illustrate the present

  
 <EMI ID = 17.1>

  
t

  
 <EMI ID = 18.1>

  
284 parts of water,

  
The mixture is boiled for 7 hours at reflux, with evolved gaseous ammonia.

  
After cooling, the charge is diluted with a double volume of water and added with hydrochloric acid

  
 <EMI ID = 19.1>


    

Claims (1)

Le produit est soluble dans des alcools à bas <EMI ID=20.1> The product is soluble in low alcohols <EMI ID = 20.1> est insoluble dune l'eau. dans l'acétate d'éthyle et l'acide acétique" Une pellicule qui a été coulée à partir d'une solu- is insoluble in water. in ethyl acetate and acetic acid "A film which has been cast from a solution <EMI ID=21.1> <EMI ID = 21.1> <EMI ID=22.1> <EMI ID = 22.1> <EMI ID=23.1> <EMI ID = 23.1> 200 parties d'eau. 200 parts of water. <EMI ID=24.1> <EMI ID = 24.1> au bout de 7 heures* after 7 hours * Le copolymère est précipité de la solution aqueu- The copolymer is precipitated from the aqueous solution. <EMI ID=25.1> <EMI ID = 25.1> <EMI ID=26.1> <EMI ID = 26.1> L'invention comprend notamment The invention comprises in particular <EMI ID=27.1> <EMI ID = 27.1> nant des groupes carboxylamides, procédé selon lequel les groupes amides d'un copolymère peu soluble jusqu'à insoluble ning carboxylamide groups, process whereby the amide groups of a poorly soluble to insoluble copolymer <EMI ID=28.1> <EMI ID = 28.1> d'un composé hydrophobe polymérisable contenant une double liaison sont hydrolyses au moins partiellement en groupes carboxyliques à l'aide de composés alcalins. of a polymerizable hydrophobic compound containing a double bond are at least partially hydrolyzed to carboxylic groups using alkali compounds. <EMI ID=29.1> <EMI ID = 29.1> 1', présentant les particularités suivantes, prises séparément ; 1 ', having the following peculiarities, taken separately; <EMI ID=30.1> <EMI ID=31.1> <EMI ID = 30.1> <EMI ID = 31.1>
BE622672D 1962-09-20 BE622672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909926A FR1334125A (en) 1962-09-20 1962-09-20 Process for the preparation of copolymers containing carboxylic groups

Publications (1)

Publication Number Publication Date
BE622672A true BE622672A (en)

Family

ID=8787131

Family Applications (1)

Application Number Title Priority Date Filing Date
BE622672D BE622672A (en) 1962-09-20

Country Status (2)

Country Link
BE (1) BE622672A (en)
FR (1) FR1334125A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021154A (en) * 2010-07-13 2012-02-02 Dow Global Technologies Llc Microbicidal coating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012021154A (en) * 2010-07-13 2012-02-02 Dow Global Technologies Llc Microbicidal coating

Also Published As

Publication number Publication date
FR1334125A (en) 1963-08-02

Similar Documents

Publication Publication Date Title
FR2468368A1 (en) AGENT FOR THE TREATMENT OF QUINAZOLINONE THEILERIOSES
US2642459A (en) Production and purification of amino acids
FR2642076A1 (en) RESIDUAL SOLVENT-FREE ACRYLIC ACID POLYMER AND PROCESS FOR PREPARING THE SAME
BE622672A (en)
FR2518985A1 (en) ALUMINA RECOVERY PROCESS
CN117088784A (en) Synthesis method of mesalamine
Bevington et al. Tests on the hydrolysis of certain synthetic polymers
CH396408A (en) Process for preparing an aqueous emulsion of polyvinyl acetate or vinyl acetate co-polymers
FR2550446A1 (en) DRUG COMPOSITION BASED ON ZINC CARBOCYSTEINATE
CN117645545B (en) A low-residue benzalkonium chloride aqueous solution, its preparation method and application
Shono et al. Preparation and polymerization of vinyl 12‐hydroxystearate
Bennett et al. O-phosphoric acid esters of 3, 5-diiodotyrosine and thyroxine
CN117645545A (en) Low-residue benzalkonium chloride aqueous solution and preparation method and application thereof
FR2515040A1 (en) NOVEL COMPOSITIONS COMPRISING DIPROQUALONE AND ETHOXYBENZAMIDE
BE562859A (en)
US3196146A (en) Production and recovery of benzyl dextran
US2943110A (en) Alpha-naphthyl ureide of 3-amino-2, 2-dimethyl cyclobutaneacetic acid and method for its preparation
JP3282642B2 (en) Method for producing high-purity 2-acrylamide-2-methylpropanesulfonic acid
CH469709A (en) Process for preparing the nicotine esters of dextran and of carboxymethyldextran
US3517048A (en) Preparation of methionine-nitrile
US3646129A (en) Process for preparing sodium nitrilotriacetate
DE1235896B (en) Process for the preparation of primary or secondary aminoalkyl ester salts of acrylic, methacrylic, crotonic, itaconic or fumaric acid
DE899940C (en) Process for the production of pellets of 4-aminobenzenesulfonamide
FR2572934A1 (en) WATER-SOLUBLE PHARMACEUTICAL COMPOSITIONS BASED ON (-) CIS-1,2-EPOXYPROPYLPHOSPHONIC ACID SALTS WITH AMINO ACIDS
BE445966A (en)