US 8,080,689 B2Granted

Nitrogen and hindered phenol containing dual functional macromolecular antioxidants: synthesis, performances and applications

AssigneePolnox Corporation

InventorsRajesh Kumar, Suizhou Yang, Vijayendra Kumar, Ashok L. Cholli

Life of this patent

Estimating the term…

Abstract

Disclosed are compounds represented by structural formula (I): methods of producing compounds represented by structural formula (I), and their use in inhibiting oxidation in an oxidizable material.

Claims1

Dependent claims

A compound represented by the following structural formula:

Dependencies are inferred from the claim text.

Facts

Application: 12/854,347Filed 11 Aug 2010 · division
Priority: 22 Feb 2005
Published: US 2011/0040125 A117 Feb 2011
Granted: 20 Dec 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

C07C 213/02
Preparation of compounds containing amino and hydroxy, amino and etherified hydroxy or amino and esterified hydroxy groups bound to the same…: by…
C07C 215/50
With amino groups linked to the six-membered aromatic ring, or to the condensed ring system containing that ring, by carbon chains not further…:…
C07C 229/38
Compounds containing amino and carboxyl groups bound to the same carbon skeleton: having amino groups bound to acyclic carbon atoms and carboxyl…
C10M 133/14
Having amino groups bound to a carbon atom of a six-membered aromatic ring: containing hydroxy groups

Family

Application60/655,169Us provisional application · filed 22 Feb 2005
Application11/360,020Parent of this division · filed 22 Feb 2006
US 2011/0040125 A1Pre-grant publication · published 17 Feb 2011
US 7,799,948 B2Parent of this division
US 2006/0189824 A1Published application
US 8,080,689 B2This patent

From the US filing history. Foreign family members aren’t listed.

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