Abstract: The invention relates to the use of coated mouldings consisting of impact modified polymethacrylate with high molecular weight as windows for passenger cars or utility vehicles.
Type:
Application
Filed:
March 12, 2012
Publication date:
March 6, 2014
Applicants:
Evonik Cyro LLC, Evonik Roehm GmbH
Inventors:
Gunther Benz, Lawrence N. Gabriel, Stephen A. Ferrero
Abstract: A plastic sheet product having a matte finish comprises a core layer of a thermoplastic polymer and at least one layer of a capstock composition which overlies, and is bonded to, at least one face of the core layer. The capstock composition comprises the same or different thermoplastic polymer and contains a plurality of discrete particles immiscible with and dispersed in the thermoplastic polymer of the capstock composition. The sheet product may be prepared by the co-extrusion of the thermoplastic polymer and the capstock composition, and in a particular embodiment, such co-extrusion may be conducted by means of a feedblock. In a particular embodiment, the thermoplastic polymer of the core layer and that of the capstock composition may be the same, such as in the instance of a methylmethacrylate-methylacrylate copolymer.
Type:
Grant
Filed:
March 4, 2008
Date of Patent:
October 19, 2010
Assignee:
Evonik Cyro, LLC
Inventors:
Darrell L. Sparks, Grant B. LaFontaine, Jennifer A. Litke, Robert E. Smith
Abstract: A panel assembly for a traffic noise barrier wall of the type including opposing slots formed in pairs of vertically-mounted posts is described. The panel assembly includes a sheet, which may be transparent, and a frame disposed along at least a portion of the perimeter of the sheet. Side portions of the frame capture at least a portion of the side edges of the sheet and are received within the opposing slots in drop-down fashion.
Type:
Grant
Filed:
February 12, 2004
Date of Patent:
June 16, 2009
Assignee:
Evonik Cyro LLC
Inventors:
Eric C. Humphries, Stephen D. Barratt, Ray Stauffer, Paul D. Nowicki, John H. Miller