Patent · US Expired

Preparation of N, N'-bridged bistetramethylpiperidinyl compounds

US5914360A · kind A · utility

3Cited by

2References

5Claims

0Family size

Assignee

BASF SE

Inventor

Alexander Aumuller · Neustadt, DE

Key dates

Filing date	Nov 5, 1997
Grant date	Jun 22, 1999
Priority date	—
Expiry date	Nov 5, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/3435
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

N,N'-bridged bistetramethylpiperidinyl compounds, which are produced by reacting tetramethylpiperidinyl compounds with a cyclic carbonate, and are useful as light stabilizers for organic material.

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