Patent · US Expired

Stabilization of organic materials

US7375149B2 · kind B2 · utility

7Cited by

8References

13Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Bruno Rotzinger · Birsfelden, CH
Kurt Hoffmann · Taufkirchen, DE
Dietmar Mäder · Oberursel, DE
Neil Dunski · Creve Coeur, US

Key dates

Filing date	Sep 2, 2003
Grant date	May 20, 2008
Priority date	—
Expiry date	Aug 11, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/32
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention describes novel mixtures comprising i) a processing stabilizer selected from the group consisting of hydroxylamine stabilizers, nitrone stabilizers, benzofuran-2-one stabilizers and/or a compound of the formula I wherein R2 is C7-C30alkyl, R3 is C1-C30alkyl, and ii) an antistatic agent selected from the group consisting of an ethoxylated amine and/or an ethoxylated amide, as stabilizers for protecting organic materials, in particular synthetic polymers, against oxidative, thermal or lightinduced degradation

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.