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:
May. 01, 2001
Filed:
Jan. 13, 2000
Applicant:
Inventors:
Don R. Stevenson, Dover, OH (US);
Daryl L. Stein, North Canton, OH (US);
Assignee:
Dover Chemical Corporation, Dover, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/04 ; C08K 5/15 ;
U.S. Cl.
CPC ...
F21V 9/04 ; C08K 5/15 ;
Abstract
This invention discloses synergistic blends of phosphates and lactones having a base structure of 3-phenylbenzofuran-2-one with or without other additives as stabilizers for polymers, particularly during melt processing as evidenced by changes in melt flow and in some instances, resistance to yellowing.