Patent · US Expired

Composition and process for the controlled synthesis of block copolymers

US7572868B2 · kind B2 · utility

1Cited by

7References

7Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Hendrik Wermter · Rauenthal, DE
Dirk Simon · Mutterstadt, DE
Rudolf Pfaendner · Rimbach, DE

Key dates

Filing date	Aug 18, 2004
Grant date	Aug 11, 2009
Priority date	—
Expiry date	Oct 17, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L53/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) at least one hydroxylamine of high molecular weight, preferably a long chain alkyl substituted hydroxylamine. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, and the use of high molecular weight hydroxylamines for controlled polymerization.

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