Petroleum resins and their production with BF3 catalyst
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United States of America Patent
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Nov 12, 2002
Grant Date -
N/A
app pub date -
Jul 19, 2000
filing date -
Jul 20, 1999
priority date (Note) -
Expired
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Abstract
Petroleum resins are produced using a supported BF.sub.3 cocatalyst complex. Preferably the cocatalyst is organic such as an alcohol or a carboxylic acid. Use of the catalyst in supported form together with the cocatalyst enables control over both Bronsted and Lewis acidity leading to better control of resin properties. Waste disposal and catalyst handling problems are also overcome.
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