MICROCAPSULES HAVING A PARAFFIN COMPOSITION AS A CAPSULE CORE

The invention relates to microcapsules comprising a paraffin composition as a capsule core and a polymer as a capsule wall, which comprises 40 to 90 wt % of one or more C1-C24-alkylesters of acrylic and/or methacrylic acids (monomers I), 10 to 60 wt % of one or more ethylenically unsaturated cross-l...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHMIDT, MARCO, SCHROEDER-GRIMONPONT, TINA, WILLAX, HANS, BRUST, JUTTA, ALTMANN, STEPHAN, KATZ, BRITTA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to microcapsules comprising a paraffin composition as a capsule core and a polymer as a capsule wall, which comprises 40 to 90 wt % of one or more C1-C24-alkylesters of acrylic and/or methacrylic acids (monomers I), 10 to 60 wt % of one or more ethylenically unsaturated cross-linking agents (monomers II), wherein at least 80 wt % relative to the ethylenically unsaturated cross-linking agents is a cross-linking agent having three or more ethylenically unsaturated radicals, and 0 to 30 wt % of one or more single ethylenically unsaturated monomers (monomer III) different from monomers I, each relative to the total weight of the monomers, wherein the paraffin composition comprises 35 to 98 wt % of n-octadecane, 1 to 10 wt % of at least one C20-C24-aliphate and/or diisopropylnaphthaline, 1 to 5 wt % of at least one wax having a melting point >40°C, and 0 to 50 wt % of n-hexadecane, each relative to the paraffin composition. The invention further relates to a method for producing same, and to the use thereof in binder construction materials, textiles, and heat carrier fluids.