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:
Mar. 25, 1986
Filed:
Dec. 11, 1984
Applicant:
Inventor:
Marvin L Doerr, Charlotte, NC (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562483 ; 562485 ; 562487 ; 568858 ;
Abstract
A process is described for reducing the amount of low molecular weight oligomers formed during the hydrolysis of a condensation polymer. This process comprises the neutral aqueous hydrolysis of a condensation polymer in which conditions are controlled such that the following two conditions are met: