PROCESSO PARA PREPARAR MATERIAIS POLIMERICOS RETICULADOS POROSOS DE BAIXA DENSIDADE

PCT No. PCT/US97/09011 Sec. 371 Date Jul. 21, 1997 Sec. 102(e) Date Jul. 21, 1997 PCT Filed May 27, 1997 PCT Pub. No. WO97/45479 PCT Pub. Date Dec. 4, 1997Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators are obtained, use...

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Bibliographic Details
Main Authors RONALD MARSHALL BASS, THOMAS FAIRCHILD BROWNSCOMBE
Format Patent
LanguagePortuguese
Published 30.06.2000
Edition7
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:PCT No. PCT/US97/09011 Sec. 371 Date Jul. 21, 1997 Sec. 102(e) Date Jul. 21, 1997 PCT Filed May 27, 1997 PCT Pub. No. WO97/45479 PCT Pub. Date Dec. 4, 1997Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators are obtained, useful in producing low density porous crosslinked polymeric materials by using a surfactant system containing (a) an anionic surfactant, the anionic surfactant having an oil soluble tail and an anionic functional group and (b) one or more quatemary salts having one or more hydrocarbon groups having greater than or equal to 8 carbon atoms. A water-in-oil emulsion can be formed with lower surfactant concentration than sorbitan fatty acid ester alone and improved surfactant performance at elevated temperatures is obtained.
Bibliography:Application Number: PT19970925742T