BE831573A - PLASTISOLS - Google Patents
PLASTISOLSInfo
- Publication number
- BE831573A BE831573A BE158466A BE158466A BE831573A BE 831573 A BE831573 A BE 831573A BE 158466 A BE158466 A BE 158466A BE 158466 A BE158466 A BE 158466A BE 831573 A BE831573 A BE 831573A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- plasticizers
- plastisols
- foams
- foam
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/30—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
<EMI ID=1.1> <EMI ID=2.1>
<EMI ID=3.1>
où les groupes R, qui peuvent être semblables ou différents, sont des
<EMI ID=4.1>
et le fumarate de diéthyle, le chlorure et le fluorure de vinylidëne. Ces plastisols contiennent des plastifiants. Les systèmes contenant les
plastifiants les plus coûteux, lesquels consistent essentiellement en des
<EMI ID=5.1> <EMI ID=6.1>
de paraffines chlorées ou de plastifiants à base d'hydrocarbures. Ces plastifiants moins coûteux nécessitent l'emploi d'agents moussants plus solubles pour obtenir une bonne stabilité de moussage. On emploie à cet effet, des agents moussants contenant de 3 à 4 % en poids de groupes hydroxyles lies au silicium. Les formulations contenant ces plastifiants moins coûteux et de grandes quantités de matière de charge sont en pratique les plus intéressantes économiquement parlant. Malheureusement, les mousses réalisées à partir de ces formulations et contenant les agents moussants précités, présentent l'inconvenant d'une structure cellulaire extrêmement grossière par comparaison avec celle des mousses fabriquées à partir de formulations contenant les plastifiants les plus coûteux.
La Demanderesse a maintenant, trouvé que cet inconvénient pouvait être pallia par l'incorporation à la formulation, d'une certaine quantité de silice hydrophobe finement divisée.
La présente invention concerne donc des plastisols à base de polychlorures de vinyle pour la fabrication de mousses comprenant un homopolymère du chlorure de vinyle ou un copolymère du chlorure de vinyle et en proportion mineure;, d'un ou de plusieurs autres monomères vinyliques polymérisables, un agent moussant du type silicone de formule générale
<EMI ID=7.1>
<EMI ID=8.1>
<EMI ID=9.1>
d'une silice hydrophobe finement divisée.
Les polymères du chlorure de vinyle, les plastifiants et les matières de charge convenant pour la présente invention sont ceux généralement employés pour de telles compositions. Ils peuvent être mis en oeuvre dans <EMI ID=10.1>
<EMI ID=11.1> <EMI ID=12.1> <EMI ID=13.1>
2. seconde vitesse pour 10 minutes
3. première vitesse (vitesse faible) pendant 5 minutes (étapes de raffinage
<EMI ID=14.1>
A la fin du cycle de mélange, la mousse obtenue a été versée dans un bol d'un volume connu, l'excès �tant écrémé et le poids spécifique de la moussa non gélifiée (p non gélifié) calculé d'après le poids d'un volume connu de la mousse.
Le reste de la mousse a été versé dans un moule en aluminium d'environ
<EMI ID=15.1>
le moule a été enlevé du four et refroidi à la température ambiante. La mousse a été enlevée de ce moule et la densité à sec mesurée en pesant une
<EMI ID=16.1>
l'échantillon de mousse examinés du point de vue de la structure cellulaire
<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>
<EMI ID=24.1>
<EMI ID=25.1>
<EMI ID=26.1>
celles-ci;, comme décrit à l'exemple 5 à l'aide de la formulation !,.sauf que l'on fait varier la quantité de silice hydrophobe. Le tableau 3 ci-dessous donna les propriétés des mousses et la quantité de silice utilisée.
TABLEAU 3
<EMI ID=27.1>
<EMI ID=28.1>
<EMI ID=29.1>
<EMI ID=30.1>
<EMI ID=31.1>
<EMI ID=32.1>
<EMI ID=33.1>
<EMI ID=34.1>
<EMI ID=35.1>
<EMI ID=36.1>
<EMI ID = 1.1> <EMI ID = 2.1>
<EMI ID = 3.1>
where the R groups, which may be similar or different, are
<EMI ID = 4.1>
and diethyl fumarate, vinylidene chloride and fluoride. These plastisols contain plasticizers. Systems containing
most expensive plasticizers, which consist mainly of
<EMI ID = 5.1> <EMI ID = 6.1>
chlorinated paraffins or plasticizers based on hydrocarbons. These less expensive plasticizers require the use of more soluble foaming agents to obtain good foaming stability. For this purpose, foaming agents containing from 3 to 4% by weight of hydroxyl groups bound to silicon are employed. Formulations containing these less expensive plasticizers and large amounts of filler are in practice the most economically attractive. Unfortunately, foams made from these formulations and containing the aforementioned foaming agents exhibit the inconvenience of an extremely coarse cell structure compared to that of foams made from formulations containing the more expensive plasticizers.
The Applicant has now found that this drawback could be overcome by incorporating into the formulation a certain amount of finely divided hydrophobic silica.
The present invention therefore relates to plastisols based on polyvinyl chlorides for the manufacture of foams comprising a homopolymer of vinyl chloride or a copolymer of vinyl chloride and in a minor proportion ;, one or more other polymerizable vinyl monomers, a silicone-type foaming agent of general formula
<EMI ID = 7.1>
<EMI ID = 8.1>
<EMI ID = 9.1>
of a finely divided hydrophobic silica.
Suitable vinyl chloride polymers, plasticizers and fillers for the present invention are those generally employed for such compositions. They can be implemented in <EMI ID = 10.1>
<EMI ID = 11.1> <EMI ID = 12.1> <EMI ID = 13.1>
2.second speed for 10 minutes
3.First speed (low speed) for 5 minutes (refining stages
<EMI ID = 14.1>
At the end of the mixing cycle, the resulting mousse was poured into a bowl of known volume, the excess being skimmed off and the specific weight of the ungelled moussa (ungelled p) calculated from the weight of a known volume of the foam.
The rest of the mousse was poured into an aluminum mold of approx.
<EMI ID = 15.1>
the mold was removed from the oven and cooled to room temperature. The foam was removed from this mold and the dry density measured by weighing a
<EMI ID = 16.1>
the foam sample examined for cell structure
<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>
<EMI ID = 24.1>
<EMI ID = 25.1>
<EMI ID = 26.1>
these ;, as described in Example 5 using formulation!, except that the amount of hydrophobic silica is varied. Table 3 below gives the properties of the foams and the amount of silica used.
TABLE 3
<EMI ID = 27.1>
<EMI ID = 28.1>
<EMI ID = 29.1>
<EMI ID = 30.1>
<EMI ID = 31.1>
<EMI ID = 32.1>
<EMI ID = 33.1>
<EMI ID = 34.1>
<EMI ID = 35.1>
<EMI ID = 36.1>
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3227874 | 1974-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE831573A true BE831573A (en) | 1975-11-17 |
Family
ID=10336125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE158466A BE831573A (en) | 1974-07-22 | 1975-07-22 | PLASTISOLS |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE831573A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6586483B2 (en) | 2001-01-08 | 2003-07-01 | 3M Innovative Properties Company | Foam including surface-modified nanoparticles |
-
1975
- 1975-07-22 BE BE158466A patent/BE831573A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6586483B2 (en) | 2001-01-08 | 2003-07-01 | 3M Innovative Properties Company | Foam including surface-modified nanoparticles |
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