POLYVINYL ALCOHOLS

Brand Owner Address Description
COVOL CORN PRODUCTS COMPANY 717 5TH AVE. NEW YORK 22 NY POLYVINYL ALCOHOLS, PARTIALLY ESTERIFIED POLYVINYL ALCOHOLS AND COPOLYMERS THEREOF FOR INDUSTRIAL APPLICATIONS;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. The invention relates to a process for recovering sterols and/or wax alcohols from a crude tall oil based source material comprising sterols and/or wax alcohols in esterified form and fatty and/or rosin acids and optionally sterols and/or wax alcohols in free form, said method comprising the steps of: a) converting free acids in the source material to corresponding salts, b) removing water if present, c) transesterifying the esterified sterols and/or wax alcohols present in the dry material obtained in step a or step b to liberate sterols and/or wax alcohols, d) evaporative fractionating the transesterified material, and e) isolating sterols and/or wax alcohols from the obtained fraction(s) and/or the residue.