GESCHÄUMTES VERNETZTES PHENOLHARZ UND VERFAHREN ZU DESSEN HERSTELLUNG

GESCHÄUMTES VERNETZTES PHENOLHARZ UND VERFAHREN ZU DESSEN HERSTELLUNG

PCT No. PCT/CH96/00192 Sec. 371 Date Nov. 14, 1997 Sec. 102(e) Date Nov. 14, 1997 PCT Filed May 17, 1996 PCT Pub. No. WO96/36659 PCT Pub. Date Nov. 21, 1996A phenolic foam having exceptional absorption capacities for pollutants such as hydrocarbons and other substances is described. The foam is hydr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHOQUARD, PHILIPPE, LAMARTINE, ROGER
Format: Patent
Sprache:ger
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
WORKING-UP
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Zusammenfassung:PCT No. PCT/CH96/00192 Sec. 371 Date Nov. 14, 1997 Sec. 102(e) Date Nov. 14, 1997 PCT Filed May 17, 1996 PCT Pub. No. WO96/36659 PCT Pub. Date Nov. 21, 1996A phenolic foam having exceptional absorption capacities for pollutants such as hydrocarbons and other substances is described. The foam is hydrophobic and is capable of absorbing such substances in amounts up to 72 times its own weight. It is the reaction product of a resol and a cross-linking agent made of linear and/or cyclic, partially or completely sulphonated, phenolic oligomers, in the presence a surfactant and a swelling agent, and, optionally, of a coloring agent and stabilizers. A method for making the foam, an installation for implementing the method and a use of said foam are also described.