Rohm Gmbh

Walter Schellhaas

Ernst Heil

Uwe Numrich

Peter J Arndt

Franz Wenzel

Thomas Rhein

Barbara Geppart

A clear impact resistant molding compound which does not become cloudy under either the influence of heat or moisture or on weathering and is composed according to the invention of:

Acrylic molding compositions

What are disclosed are a continuous emulsion polymerization method for making an aqueous dispersion of an impact resistant resin, adaptable to use as a component of impact resistant polymethacrylate forming masses, by first emulsion polymerizing a first monomer component onto core particles of a seed latex until a degree of polymerization of said monomers from 80 to 95 percent is attained, whereby an intermediate product comprising said core particles covered with a rubbery polymer phase is obtained, and then emulsion polymerizing a second monomer component onto the particles of said intermediate product to form a shell of harder polymer on the particles of said intermediate product, and impact resistant resin products made by this method.

Impact resistant resins and method for making the same

Growing community of inventors

Zwingenberg, Germany

Walter Schellhaas