Libbey-Owens-Ford Co.

James E Matzinger

William R Weaver

Thomas E Allen

Robert D Kroshefsky

Producing an encapsulated glazing unit having a weather-stable film on an exposed surface of the gasket. There is provided a two-part mold whose sections cooperate to define a mold cavity for receiving the peripheral margins of the transparent glazing unit upon which the gasket is to be formed. A sheet of the weather-stable film is positioned over the mold section having the portion of the cavity which defines the surface to which the film is to be applied. With the mold closed, a flowable gasket forming material is injected into the mold cavity behind the film to deform the film into conformity with the mold surface. As the gasket cures in situ, the film fuses to its surface. The encapsulated unit is removed from the mold and the excess film is trimmed from around the gasket.

Method of forming an encapsulated glazing unit

Molded composites, useful for manufacturing for example entry way doors, furniture components, building decorative or structural components, etc., are produced by a process in which a substrate and surface finishing film are placed in a mold, the mold is closed, and reactive polymeric precursors are injected between the substrate and the surface finishing film. The injection pressure and the autogenous pressure incident to the curing of the reactive polymeric precursors deform the surface finishing film into intimate contact with a surface of the mold cavity, and simultaneously the polymeric precursors chemically bond to the surface finishing film.

Molded composites

Coated plastic products are prepared by chemically bonding a protective coating material to at least a portion of the surface of a plastic substrate, by disposing a web of a protective coating material over the cavity of a mold, and thereafter injecting polymeric precursor materials into the mold behind the web thereby conforming the web to the surface of the mold cavity. As the polymeric precursor materials react in situ to form the plastic substrate, they also chemically bond to the protective coating material.

Method of molding plastic products having chemically bonded protective

Method of molding a composite

Molded plastic articles are prepared by disposing a mold release membrane across a mold section, closing the mold, injecting polymeric precursor materials behind the membrane causing it to conform and adhere to the mold cavity surface, and thereafter parting the mold sections and parting the molded plastic article away from the release membrane which remains adhered to the mold cavity surface. Subsequent injections may be used to prepare additional molded plastic articles, thereby reusing the release membrane which at all times remains adhered to the mold cavity surface.

Growing community of inventors

Toledo, OH, United States of America

James E Matzinger