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:
Jan. 16, 2001
Filed:
Dec. 30, 1998
Applicant:
Inventors:
Clement L. Brungardt, Chester County, PA (US);
Richard J. Riehle, New Castle County, DE (US);
Ian Vallance, High Wycombe Bucks, GB;
Jian Jian Zhang, New Castle County, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; B31B 1/02 ;
U.S. Cl.
CPC ...
C07D / ; B31B 1/02 ;
Abstract
Nucelophilic group, such as alcohol, terminated 2-oxetanone multimers, process of making same by reacting e.g. alcohol and dicarboxylic acid chloride in the presence of triethylamine, and their use for sizing paper.