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:
Sep. 08, 1987
Filed:
Sep. 02, 1986
Applicant:
Inventors:
Pyong-Nae Son, Akron, OH (US);
John T Lai, Broadview Heights, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524100 ; 544231 ; 544358 ; 544384 ;
Abstract
A bis-polysubstituted piperazinone ('bis-PSP') in which two PSP moieties are closely coupled through an ethylene linkage, may be esterified so as to incorporate particular moieties in a macromolecule which may have only one bis-PSP unit, or may be esterified to form an oligomer having plural esterified bis-PSP repeating units. The macromolecule not only exhibits excellent UV-stabilization and antioxidant properties in synthetic resinous materials thus performing a highly effective dual function, but also is resistant to extraction with solvents, particularly polar solvents.