Abstract: Methods for adsorbing a protein, for example an enzyme, onto an insoluble, solid, macroporous, small-particle support by washing said support with an aqueous solution of the protein containing an electrolyte in an ionic strength of at least 0.15 mole/liter and crosslinking said protein, before, during, or after such adsorption, with a coupling component present in aqueous electrolyte-containing solution.

Abstract: Polymer water-in-oil emulsions for the production of aqueous flocculants solutions are described in which the oil phase consists entirely or to a large degree of readily biodegradable compounds and these compounds are aliphatic dicarboxylic esters.

Abstract: A film forming dispersion for the heat sealing of dissimilar substrate said dispersion comprising at least two different types of polymers having different adhesive properties in an organic solvent system, at least one of the polymer types being fully miscible at room temperature with the organic solvent system, both of said two polymer types having an acid number ranging from 0 to 160 mg KOH per gram of polymer, and said dispersion further containing a third graft polymer containing components corresponding to said two different polymer types.

Abstract: A suspension of an aqueous solution of a water-soluble polymer in an organic liquid forming a continuous organic phase, said suspension containing, as an emulsifier, a mixture of two copolymers which are similar but differ in their content of basic nitrogen by 0.1 to 1.5 percentage points.

Abstract: What is disclosed is a method for making a water-in-oil emulsion of a water soluble polymer of high molecular weight of polymerization of an aqueous monomer solution emulsified in an oil, even in large batches or continuously, comprising not moving the emulsion in a turbulent flow pattern at the start of polymerization and not mixing the emulsion at the start of polymerization with portions of emulsion which have been exposed to polymerization conditions for less time. Once polymerization has started, it is continued by the action of an initiator which decomposes to yield free radicals.

Abstract: What are disclosed are a method for making a pearl-like crosslinked hydrophilic carrier polymer, capable of binding proteins, by the inverse pearl polymerization of a monomer phase comprising a monomer mixture of a certain composition and a diluent therefor, also of a certain composition, said diluent comprising at least two components which can be chosen in nature and amount to optimize the protein binding capacity of the polymer, and pearl-like hydrophilic carrier polymers made by this method.