Advanced epoxy resin from mixing polyepoxide and OH- or COOH-compound as feedstream
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United States of America Patent
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Jul 17, 2001
Grant Date -
N/A
app pub date -
Sep 16, 1999
filing date -
Apr 19, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides for a process for the preparation of an advanced epoxy resin by reaction of a compound having on average more than one epoxy group per molecule and a compound having on average one or more hydroxyl group or carboxyl group per molecule in the presence of a catalyst at elevated temperature, the process comprising (1) mixing the epoxy compound, the hydroxyl compound or the carboxyl compound and the catalyst, and (2) transferring the mixture as a feedstream to a surface which is at least intermittently moving with respect to the feedstream. In a preferred embodiment an endless conveyer belt with additional heating means and optional cooling means are used.
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