Krauss-Maffei Aktiengesellschaft

Konrad Zweig

Erwin Burkle

Markus Spotzl

Guido Rehm

Peter Karlinger

Process and device for manufacturing thin-walled laminated moldings

A laminate is made by first forming a substantially closed mold cavity between a pair of mold halves, then injecting a plastified synthetic resin into the cavity under pressure to substantially fill the cavity and at least partially curing the resin in the cavity to form a base body. The mold halves are then separated to leave the partially cured body in one of the mold halves with a face of the body exposed and a deformable sheet is laid over the face of the body in the one mold half. A die having a face conforming at least generally to the shape of the body face is then laid down against the sheet onto the body to press the sheet into intimate contact with the body face and bond the sheet and body together.

System for making a molded laminate

A resin article is made between an outer concave mold part and an inner convex mold part that can fit together so that respective surfaces form a substantially closed mold cavity. This is done by first lining the surface of the outer mold part with a liner sheet and then fitting the lined outer mold part to the inner mold part to form the substantially closed mold cavity. A portion of the surface of the inner mold part is positioned to form a pocket open inward into the cavity and this pocket is filled with a mass of fluent synthetic resin. The surface portion is then pressed inward while the parts are fitted together and without otherwise relatively moving the mold parts to force the resin mass from the pocket into the cavity until the inner-part surface portion lies substantially flush with the rest of the inner-part surface.

System for molding laminated articles of a thermoplastic resin

A synthetic-resin article is molded by plastifying a virgin granulate into a fluent stream and plastifying a recycle granulate into another fluent stream. The recycle stream is then filtered while still plastified to removing particulate impurities from it. Then the filtered recycle stream while still plastified is combined with the virgin stream to form a combined stream and the combined stream is fed into a mold. The stream is mechanically filtered.

Growing community of inventors

Augsburg, Germany

Konrad Zweig