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. 16, 2010
Filed:
Dec. 02, 2005
Applicants:
Suizhou Yang, Lowell, MA (US);
Ashok L. Cholli, Chelmsford, MA (US);
Inventors:
Suizhou Yang, Lowell, MA (US);
Ashok L. Cholli, Chelmsford, MA (US);
Assignee:
Polnox Corporation, Lowell, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/38 (2006.01); C08G 65/40 (2006.01); C08G 61/00 (2006.01); C08G 61/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a method for the synthesis of sterically hindered polymeric antioxidants based on phenol type antioxidant monomers. The method includes partially etherifying, polymerizing and thermally rearranging a phenol containing monomer represented by the following structural formula: to produce a sterically hindered polymeric macromolecular antioxidant. X, Rand q are as defined herein. The disclosed method is a simple, direct and economical process for the synthesis of sterically hindered polymeric macromolecular antioxidants.