Bayer Aktiengesellschaft

Peter Mummenhoff

Heinz Baumgen

Ulrich Beck

Wulf Von Bonin

Joachim Probst

Wolf-Dieter Schroer

Kuno Wagner

Hanns P Muller

Horst Nickel

Friedhelm Muller

Gottfried Wallpott

Karlheinz Scheuss

G/u/ Nter Kolb

Heinz B/a/ Umgen

Ingeborg Kolb

A sizing agent which contains from 1 to 60 parts, by weight, of a fixing and sizing accelerating agent and from 0 to 80 parts, by weight, of conventional auxiliaries per 10 parts by weight of hydrophobic, cellulose-reactive sizing materials, the fixing and sizing accelerating agent being a polymer composed of linear or branched carbon chains, to which primary, secondary or tertiary amino and/or quaternary ammonium groups are bound directly or by side chains exhibits a thorough and rapid sizing effect, in particular in the better sizing of paper.

Sizing agent and use thereof

New aqueous sizes, in particular paper sizes, are made available which contain

Sizes based on ketene dimers

New products having excellent sizing action, in particular on paper are obtained by reacting .alpha.,.beta.-unsaturated carboxylic acids or their reactive derivatives (such as, for example, esters or anhydrides) with amide-amines of higher carboxylic acids at temperatures above 120.degree. C. The new products are used in size formulations, preferably as aqueous alkaline and, in particular, aqueous ammoniacal, dispersions.

Sizes

Cationic sizing agents for paper in the form of an aqueous colloid-disperse solution having average particle diameters of from 15 to 200 nm are obtained by dissolving a water-soluble cationic, chemically uniformaly composed terpolymer compound of:

Cationic sizing agent for paper and a process for the preparation thereof

Aminoplastic resin dispersions which are stable to sedimentation are obtained by condensation of aldehydes with aminoplastic resin formers in an aqueous medium, in the presence of water-soluble compounds of the formula

Aqueous aminoplastic resin dispersions

Paper sizing agents in the form of an aqueous preparation of maleic acid anhydride copolymers of which the anhydride groups had been reacted either with organic or inorganic bases or with primary-tertiary diamines and the reaction products subsequently reacted with epichlorohydrin or with inorganic or organic acids to form salts, the copolymers being made up of polymerised units of

Sizing agents for paper and a process for the production thereof

Cationic azo dyestuffs of the general formula ##STR1## wherein X.sup.(+) denotes an ammonium group,

Growing community of inventors

Cologne, Germany

Peter Mummenhoff