Wolfgang Zimmermann

Polyvinyl alcohol composition, process for its preparation and its use

Use of water vapour permeable polyvinylalcohol sheets

Graft copolymers of vinyl acetate on polyethylene oxide as self-supporting capsules

Selbsttragende packungen oder kapseln zum umhuellen von medikamenten

Process for changing the water content of water-absorbing or water-releasing material

Plasticised polyvinyl alcohol granulate - made from particles of uniform size by mixing with plasticiser and water

Verwendung von wasserdampfdurchlässigen Folien aus Polyvinylalkohol

Verfahren zur veraenderung des wassergehalts von wasseraufnehmendem oder wasserabweisendem material A process for the alteration of the water salary of water-absorbing or water repellent material

Folienverbund, verfahren zu seiner herstellung, seine verwendung und daraus bestehendes verpackungsmaterial Composite film, process for its preparation, its use and from existing packing material

Self-supporting packs or capsules for wrapping drugs