AT260552B - Self-extinguishing foam - Google Patents
Self-extinguishing foamInfo
- Publication number
- AT260552B AT260552B AT539263A AT539263A AT260552B AT 260552 B AT260552 B AT 260552B AT 539263 A AT539263 A AT 539263A AT 539263 A AT539263 A AT 539263A AT 260552 B AT260552 B AT 260552B
- Authority
- AT
- Austria
- Prior art keywords
- self
- extinguishing foam
- parts
- sep
- foam
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims description 6
- 125000006267 biphenyl group Chemical group 0.000 claims description 5
- 239000000203 mixture Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- -1 diphenyl compound Chemical class 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical class [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Landscapes
- Polyurethanes Or Polyureas (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
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Selbsterlöschender Schaumstoff
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also eine reaktive Gruppen enthaltende Verbindung angewandt werden kann, s. USA-Patentschrift Nr. 3, 004, 951. Erfindungsgemäss wird jedoch zu einem aus bereits fertigen Kunstharzen gebildeten Schaumstoff eine hochchlorierte, hydroxylgruppenfreie Diphenylverbindung, die gegenüber der Harzbildungsreaktion inert ist, zugesetzt, um die physikalischen Eigenschaften des Schaumstoffes entsprechend zu verbessern.
Erfindungsgemäss können die stark chloriertenDiphenyle allein oder im Gemisch mit andern Stoffen verwendet werden, die die Entzündlichkeit verzögern oder verhindern, wie beispielsweise den organischen oder anorganischen Derivaten des Antimonoxyds.
Die selbsterlöschenden Eigenschaften sind umso ausgeprägter, je stärker chlorierte Diphenyle verwendet werden. Bevorzugt wird technisches Decachlordiphenyl, bei dem 71% Chlor an den Kern gebunden sind.
Zahlreiche schäumbare Harzmischungen sind mit stark chlorierten Diphenylen verträglich und können verwendet werden. Beispielsweise seien genannt : Naturkautschuk, Nitrilkautschuk als Substanz oder als Latex, ferner Styrol, Polyesterisocyanate, Polyäthylen u. a. m.
Um die Vorteile der Erfindung voll auszunutzen, ist es unerlässlich, dass das Gemisch der Harzmassen und des chlorierten Diphenyls so homogen wie möglich ist.
Beispiel l : In den Behälter eines Schlagmischers wurden 200GeW. -Teile 60U/oigenNatur- kautschuklatex und 5 Teile einer Seife gegeben. Nach und nach wurden unter Rühren 300 Gew.-Teile einer Decachlordiphenyldispersion zugesetzt, die die Dichte 1, 68 und die folgende Zusammensetzung besass :
EMI2.1
<tb>
<tb> Decachlordiphenyl <SEP> 1000
<tb> Antimonoxyd <SEP> 600
<tb> Netzmittel <SEP> (Darvan) <SEP> 40
<tb> Wasser <SEP> 660
<tb>
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- 3 min laufen gelassenBeispiel 4 : In einen Schlagmischer wurden 100 Gew.-Teile feingemahlenes Polystyrol gegeben, dem 100Gew..-Teile Dacachlordiphenyl und 2,5 Gew.-Teile Azoisobuttersäuredinitril der folgenden Formel zugesetzt waren :
EMI3.1
Das Gemisch wurde vollständig homogenisiert und anschliessend in einer Form unter einel Presse in der Wärme geschäumt. Es wurde ein starrer, vollständig von selbst erlöschender Schaumstoff erhalten.
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Self-extinguishing foam
EMI1.1
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thus a compound containing reactive groups can be used, s. US Pat. No. 3,004,951. According to the invention, however, a highly chlorinated, hydroxyl group-free diphenyl compound, which is inert to the resin formation reaction, is added to a foam formed from already finished synthetic resins in order to improve the physical properties of the foam accordingly.
According to the invention, the strongly chlorinated diphenyls can be used alone or in a mixture with other substances which delay or prevent inflammability, such as the organic or inorganic derivatives of antimony oxide.
The more chlorinated diphenyls are used, the more pronounced the self-extinguishing properties. Technical decachlorodiphenyl, in which 71% chlorine is bound to the core, is preferred.
Many foamable resin blends are compatible with highly chlorinated diphenyls and can be used. Examples include: natural rubber, nitrile rubber as a substance or as latex, also styrene, polyester isocyanate, polyethylene and the like. a. m.
In order to fully exploit the advantages of the invention, it is essential that the mixture of the resin compositions and the chlorinated diphenyl be as homogeneous as possible.
Example 1: 200GeW. -Parts of 60U / oigen natural rubber latex and 5 parts of a soap. Gradually, while stirring, 300 parts by weight of a decachlorodiphenyl dispersion which had a density of 1.68 and the following composition were added:
EMI2.1
<tb>
<tb> Decachlorodiphenyl <SEP> 1000
<tb> antimony oxide <SEP> 600
<tb> Wetting agent <SEP> (Darvan) <SEP> 40
<tb> water <SEP> 660
<tb>
EMI2.2
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Example 4: 100 parts by weight of finely ground polystyrene to which 100 parts by weight of dacachlorodiphenyl and 2.5 parts by weight of azoisobutyric acid dinitrile of the following formula were added to a beater mixer:
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The mixture was completely homogenized and then foamed in a mold under a press in the heat. A rigid, completely self-extinguishing foam was obtained.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR260552X | 1962-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT260552B true AT260552B (en) | 1968-03-11 |
Family
ID=8884996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT539263A AT260552B (en) | 1962-07-11 | 1963-07-05 | Self-extinguishing foam |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT260552B (en) |
-
1963
- 1963-07-05 AT AT539263A patent/AT260552B/en active
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