The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 1993
Filed:
Aug. 12, 1991
Gerald E Butler, Longview, TX (US);
Garrett C Luce, Longview, TX (US);
Don L Morris, Longview, TX (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Disclosed is a process for the recovery of purified hydroxypivalyl hydroxypivalate (HPHP) from a crude, HPHP containing material containing inorganic catalyst residues and low-boiling and high-boiling (with respect to the boiling point of HPHP) impurities. The purification process employs two distillation zones, a first distillation zone wherein inorganic and high-boiling impurities are removed and a second distillation zone wherein low- and high-boiling impurities are removed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile