专利名称：PHENOL-FORMALDEHYDE NOVOLAC RESIN
HAVING LOW CONCENTRATION OF FREEPHENOL
发明人：Richard A. Rediger,Edward Lucas申请号：US14295847申请日：20140604
公开号：US20140287238A1公开日：20140925
摘要：A phenol-formaldehyde novolac resin having a low concentration of free phenolprepared by distilling residual phenol from a molten novolac resin and replacing at leasta portion of the phenol with a solvent having a volatility equal to or less than phenol.Such modified novolac resins are suitable for the production of resin coated moldingsands for shell molding and sand cores, as well as for the production of resin coatedproppants for use in oil and gas recovery operations.
申请人：Georgia-Pacific Chemicals LLC
地址：Atlanta GA US
国籍：US
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