Hoechst Aktiengesellschaft

Clariant Corporation

Agfa-gevaert Ag

Volker Matz

Martin Jakob

Detlev Seip

Karin Maerz

Stephan J Platzer

Stefan Hess

Heinz Hennemann

Stephen J Platzer

Hermann Schindler

Heterogeneous, solvent- and plasticizer-free polyvinyl ester dispersions which are stabilized by protective colloids and which have a minimum filming temperature of below 10.degree. C. are disclosed. These dispersions are made of a mixture of

Heterogeneous polyvinyl ester dispersions and powders

Polyvinyl ester dispersion with metal salt hydrosols as precipitation

A redispersible dispersion powder comprising:

Dispersion powders for water-resistant adhesives

A photosensitive material for making color-proofing films for multicolor printing is described, with

Photosensitive material and method for making color-proofing films

Aqueous emulsion adhesives having a pH from 2 to 6 which comprise homo- or copolymeric polyvinyl esters, polymeric protective colloids, water-soluble compounds which can be complexed with the polymeric protective colloids, and at least partially masked polyaldehydes having at least 3 carbon atoms from which aldehyde groups can be released in a controlled manner in acidic media are suitable for bonding porous and semiporous substrates.

Emulsion adhesives

A process for the precipitation of aqueous plastics dispersions containing polyvinyl alcohol, preferably from waste waters, and separation of the polymeric solids content, which comprises adding the following to the dispersion in order, with thorough mixing:

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Frankfurt-am-Main, Germany

Volker Matz