Abstract: A cleaned, sterile ceramic, metallic or polymeric substrate surface is vapor-deposited under sterile conditions with silica, is wetted on top of this with a saline coupling agent under sterile conditions, and is provided on top of the latter with a preserving protective layer which is sterile and/or can be sterilized after polymerization and constitutes the activatable first component of a multi-component adhesive which at the time of use is formed by addition of at least one further adhesive component. A workpiece which has been partially or completely coated in this way can be connected with good adhesion to a polymer, even after several months of sterile storage and transportation, by means of the activation of the protective layer with a monomer.

Abstract: A water-absorbing insert is provided for food packs. The insert is adapted to be used in direct abutment with the food, typically poultry, fish, meat and sausage. It comprises an outer covering and an inner filling. The outer covering, configured as a flat bag, is pervious to water and is preferably made from an acid free paper such as, for example, bleached cellulose acetate crepe paper. The filling includes kieselguhr and an organic gel former selected from the group consisting of carboxymethyl cellulose, cellulose ether, polyvinyl pyrrolidon, starch, dextrose, gelatin and pectin.