Patent · US Expired

Method for polymerizing vinyl monomers

US6268441A · kind A · utility

2Cited by

1References

7Claims

0Family size

Assignee

BASF SE

Inventors

John Lynch
Heinz Friedrich Sutoris · Bischofswerda, DE
Jürgen Zubiller · Kaiserslautern, DE
Alexander Aumuller · Neustadt, DE

Key dates

Filing date	May 27, 1999
Grant date	Jul 31, 2001
Priority date	—
Expiry date	May 27, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Vinyl monomers are polymerized in the aqueous phase in the presence of at least one N-oxyl compound of a secondary amine, having no hydrogen atoms bonded to the .alpha. carbon atoms. This process substantially eliminates deposits on reactor surfaces.

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