Basf Aktiengesellschaft

Klaus Schagerer

Peter Pfoehler

Maximilian Angel

Hermann Seyffer

Wolfgang Druschke

Andreas Einwiller

Johannes Tuerk

Juergen Vietmeter

Dispersions of non-tertiary butyl (meth)acrylate copolymers having glass

Aqueous (meth)acrylate copolymer dispersions can be prepared by polymerization of the monomers in two stages having different monomer compositions and with the concomitant use of crosslinking monomers in aqueous emulsion at the usual temperatures in the presence of the conventional emulsifiers and polymerization initiators, from 40 to 99.5% by weight of the total monomers being polymerized in the first stage and from 60 to 0.5% by weight of the total monomers being polymerized in the second stage, by a process in which from 0.5 to 10% by weight, based on the total monomers, of (meth)-acrylamidoglycollic acid and /or its methyl ester and/or its methyl ether are polymerized in the second stage and from 0 to 1.8% by weight, based on the total monomers, of the amidoglycollic acid compounds are polymerized in the first stage, and the resulting copolymer dispersions are used as binders for sheet-like textile fibrous structures.

Preparation of aqueous (meth)acrylate copolymer dispersions in two

Growing community of inventors

Gruenstadt, Germany

Klaus Schagerer