Spray dried phenol-formaldehyde resin compositions
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United States of America Patent
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Sep 10, 1991
Issued Date -
N/A
app pub date -
Jan 16, 1991
filing date -
Jul 26, 1989
priority date (Note) -
Expired
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Abstract
A pre-cure resistant powder resin binder for waferboard/oriented strandboard manufacture is manufactured from spray drying a liquid resin composition containing a low advanced phenol-formaldehyde resin and a water soluble oxo compound of boron. The spray dryability of the low molecular weight phenol-formaldehyde resin is enhanced by the addition of the oxo boron compound.
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