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:
Apr. 01, 2003
Filed:
Nov. 30, 2001
Applicant:
Inventors:
Carmen L. Rodriguez, Gulph Mills, PA (US);
Jude T. Ruszkay, Coatesville, PA (US);
Assignee:
ARCO Chemical Technology, L.P., Greenville, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/103 ;
U.S. Cl.
CPC ...
C07C 4/103 ;
Abstract
Phenolic polyether polyols are prepared by a two stage oxyalkylation process, a first stage performed at a high oxyalkylation temperature and a second stage at a lower oxyalkylation temperature. Despite the use of high temperature during oxyalkylation, polydispersity is substantially unaffected, while process time is drastically reduced.
Rodriguez, Carmen. (2003). Process for oxyalkylating phenolic compounds (U.S. Patent No. 6541673). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6541673
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile