| abstract |
The present invention relates to an interpenetrating polymer (ipn) mesh material comprising a vinylamine-vinylformamide copolymer and a homopolymer or copolymer of at least one monomer selected from acrylamide or derivatives thereof, acrylic acid or derivatives thereof. same, or a mixture thereof, which forms the ipn material together with the vinylamine-vinylformamide copolymer. The present invention further relates to a process for the production of ipn material and the use of ipn material in the paper industry. |