Bayer Aktiengesellschaft

Membrana Gmbh

Hartwig H&ouml;cker

Helmut Keul

Martin Melchiors

Dirk Achten

Dieter Margotte

Andreas Neumann

Hilmar Weisse

The invention relates to a new process for the preparation of functionalized telechelics based on vinyl polymers, the telechelics prepared in this way and their use in the plastics, fibers or coating sector.

Oligomeric and polymeric telechelics

The invention relates to a new process for the preparation of functionalized alkoxyamine initiators, new alkoxyamine initiators based on (meth)acrylate which are prepared by this process, and their use for the preparation of polymers.

Functionalized alkoxyamine initiators

The invention relates to a new process for the preparation of functionalized telechelics based on vinyl polyrners, the telechelics prepared in this way and their use in the plastics, fibers or coating sector.

A novel process for the production of oligomeric and polymeric telechelic compositions, to the telechelic compositions produced in this manner and to use thereof in the plastics, fibres or lacquer sectors.

Process for the production of telechelic polymers, telechelic polymers produced in this manner and use thereof

Block copolymers containing blocks of unsulfonated aromatic polyether sulfones and blocks of aromatic polyether sulfones sulfonated on the aromatics are characterized in that the block length of the unsulfonated aromatic polyether sulfones in each case comprises at least 10 repeating units and that the sequence of the main chain at the block transitions between two adjacent blocks of aromatic polyether sulfones is the same as it is inside these blocks. These block copolymers may be prepared by polycondensation, and are preferably used as membranes. The block copolymers provide compounds which in addition to an adjustable degree of sulfonation have a defined length of sulfonated and unsulfonated blocks. As a result, the spectrum of the polymers suitable for the preparation of synthetic membranes can be expanded and graded.

Growing community of inventors

Aachen, Germany

Hartwig Höcker

Growing community of inventors

Aachen, Germany

Hartwig H&ouml;cker

Hartwig Höcker