Bayer Aktiengesellschaft

Edmund Giez

Imre Pascik

Joachim Priemer

Gotmar Dornheim

A polyurethane foam web with a thickness of 5 mm to 30 mm is passed continuously through a dipping bath and is thereby impregnated with 10% to 1000% by weight of a polymer dispersion consisting of the components A) and B) defined below:

Filler-modified polyurethane foam supports for bioconversion processes

In this process, a polyurethane foam web with a thickness of 5 mm to 30 mm is passed continuously through a dipping bath and is thereby impregnated with 10% to 1000% by weight of a polymer dispersion consisting of the components A) and B) defined below:

Process for the manufacture of filler-modified polyurethane foam

Crimping of fishing nets, particularly of the codends of fishing nets of synthetic filamentary yarn, to be subjected to severe mechanical stressing, can be considerably avoided by impregnating the nets with finish consisting of a mixture of a vinyl pyridine copolymer latex, a formaldehyde resin precondensate, formaldehyde, water and, optionally, a dye, drying the nets thus impregnated and subsequently subjecting the nets to a heat treatment at 130.degree. C. to 180.degree. C.

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Leichlingen, Germany

Edmund Giez