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:
Feb. 14, 1995
Filed:
Jun. 20, 1989
Applicant:
Inventors:
Roe C Blume, Wilmington, DE (US);
Lewis E Manring, Wilmington, DE (US);
William G Peet, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C04B / ;
U.S. Cl.
CPC ...
428480 ; 264 63 ; 501-1 ; 524 81 ; 524539 ; 528271 ; 528361 ; 560231 ; 562579 ;
Abstract
Polymers of 2,2-disubstituted-3-hydroxypropionic acid, e.g., polymers of .beta.-propiolactone, are employed in ceramic compositions as binders or dispersing agents.