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:
Jul. 28, 1998
Filed:
Nov. 01, 1996
Applicant:
Inventors:
Steven L Schilling, Glen Dale, WV (US);
Herman P Doerge, Pittsburgh, PA (US);
Lotar H Hanusa, Pittsburgh, PA (US);
Assignee:
Bayer Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08G / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
521167 ; 521117 ; 521130 ; 521164 ; 564399 ; 564443 ; 564445 ; 564475 ; 564504 ; 564505 ;
Abstract
Clear, amine-initiated polyether polyols are made by epoxidizing an amine in the presence of an alkali metal hydroxide catalyst. After the desired degree of epoxidation has been achieved, a hydroxy-carboxylic acid is added to the epoxidized mixture in an amount sufficient to neutralize any remaining alkali metal hydroxide. The polyols produced in this manner are particularly useful for the production of polyurethane and apolyisocyanurate foams.
Schilling, Steven. (1998). Amine-initiated polyether polyols and a process for their production (U.S. Patent No. 5786405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5786405
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile