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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Aal; Robert A.
Address:
Yardley, PA
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
3945891 Distillation process for purification of triaryl phosphate esters March 23, 1976
Crude phosphate ester products resulting from the phosphorylation of phenol, lower alkyl phenols and mixtures of same are purified to prepare triaryl phosphates substantially free of unreacted phenols by the sequential steps of flash distillation and fractional distillation under con










 
 
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