US 2011/0257339 A1Published application

Method for stabilizing polymers

AssigneeBASF SE

InventorsFrank Fischer, Ralf Widmaier, Angelika Maschke, Karl Kolter, Antonietta Mauri

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Abstract

Process for the preparation of low-peroxide polymer comprising the treatment of the polymer with elemental metal in the presence of a liquid, polymer obtainable by this process, the use thereof, and also drugs comprising this polymer.

Claims16

Dependent claims

1-15. (canceled)

Dependencies are inferred from the claim text.

Facts

Application: 13/141,528Filed 17 Dec 2009
Priority: EP 08172552.522 Dec 2008
Published: 20 Oct 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

C08F 6/02
Post-polymerisation treatments: neutralisation of the polymerisation mass, e.g. killing the catalyst also removal of catalyst residues
C08F 26/10
By a heterocyclic ring containing nitrogen: n-Vinyl-pyrrolidone
C08G 65/30
From cyclic ethers by opening of the heterocyclic ring: post-polymerisation treatment, e.g. recovery, purification, drying
C08G 65/321
Polymers modified by chemical after-treatment: with inorganic compounds

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