Basf Aktiengesellschaft

Lothar Hoehr

Ulrich Riebeling

Hans-Juergen Degen

Fritz Reichel

Roland Ettl

Heinz Mueller-Tamm

Werner Auhorn

Gerhard Zeitler

Andreas Hohmann

Arnold De Clercq

Carlos A Goncalves

Paper size mixtures

The printability of paper is improved by applying an aqueous coating agent consisting of

Printability of paper

Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of

Paper size based on finely divided aqueous dispersions

Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of

Sizing agents for paper based on finely divided aqueous dispersions

Process for the manufacture of shaped articles of a mixture of polystyrene and a copolymer of ethylene with vinyl ester, acrylate or methacrylate. To this end, the said copolymers having a content of from 3 to 40% by weight of unsaturated ester are reacted with monomeric styrene in aqueous suspension in the presence of free-radical polymerization initiators. Whereas a portion of the styrene used is directly grafted onto the ethylene copolymer, the remainder of the polymerized styrene is present in a finely divided state as a homopolymer beside or within the grafted ethylene copolymer. There are obtained homogeneous shaped articles having a styrene content of more than 50% by weight.

Process for the manufacture of shaped articles by graft polymerization

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Worms, Germany

Lothar Hoehr