Abstract: As new compositions, retiporous amine resin granules of at least 10% pore volume, the pores having a minimum average diameter of about 0.1 micron. A process of preparing the granules from a dispersion of a hardenable amine syrup and their use in paints, polymer and paper as texturing and matting agents are also disclosed.

Abstract: A process for treatment of a cellulosic paper sheet in which the cellulosic fibers are treated with a polyamine or polyamide and a mixture of wax emulsion, urea-formaldehyde and an aldehyde donor such as a tris nitromethane or an oxazolidine.

Abstract: Amide-containing cationic copolymer is reacted with polyalkyleneimine in an aqueous medium to form a water-soluble cationic resin which is a treating agent useful for fibrous materials. The adduct of halohydrin to water-soluble cationic resin is a water-soluble cationic thermosetting resin and is also useful for treating fibrous materials. The treating agent has excellent retention ability to fiber, drainage property and storage stability and remarkably improves the retention of fillers and wet and dry strength of paper.

Abstract: A method of manufacture from a predetermined material, especially from a natural fibrous material and/or synthetic fibrous material of an article, in particular a sheet for printing or reproduction, which combines superior qualities of brightness, opacity, thermal stability, insolubility and lightness, said method consisting of laoding said material throughout its mass or superficially, with a filler product having a base of a methylene urea precipitate with a low degree of polymerization, obtained by the reaction of urea on formaldehyde in an acid medium.

Abstract: In the production of sized paper and board using ketene dimer as sizing agent, there is used concomitantly with the ketene dimer a cationic polyelectrolyte so as to increase the sizing effect of the ketene dimer. The cationic polyelectrolyte is normally a dye fixative selected from water-soluble dicyandiamide-formaldehyde condensates. The cationic polyelectrolyte may be mixed with the ketene dimer so as to form a novel sizing composition which is preferably used in the form of an emulsion.