The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2002
Filed:
Jul. 24, 2001
Roman Eberstaller, Obergrafendorf, AT;
Mariacarla Arduini-Schuster, Kürnach, DE;
Joachim Kuhn, Würzburg, DE;
SUNPOR Kunstoff Ges. m.b.H., St. Poelten, AT;
Abstract
Particulate, expandable styrene polymers capable of being processed into hard foamed plastic materials of a small density and containing, therefore, at least one foaming agent comprise at least aluminum in a particulate form for improving their thermal insulation properties. The styrene polymer particles comprise, after their expansion, a fine cell structure and contain the aluminum particles incorporated in a homogeneous distribution as an infrared ray reflecting material. The main proportion of these aluminum particles has the shape of platelets having a size between 1 and 15 &mgr;m. Styrene polymer particles produced in this manner can be foamed into plastic materials of foamed polystyrene particles which have a density of 30 g/l in maximum and improved heat insulation characteristics.