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:
Aug. 25, 2009
Filed:
Jan. 01, 2004
Reinard Jozef Maria Steeman, Elsloo, NL;
Martinus Johannes Nicolaas Jacobs, Heerlen, NL;
Reinard Jozef Maria Steeman, Elsloo, NL;
Martinus Johannes Nicolaas Jacobs, Heerlen, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
A preformed sheet is provided with at least two mono-layers, each mono-layer containing unidirectionally oriented fibers having a tensile strength of at least about 1.2 GPa and a tensile modulus of at least 40 GPa, and a binder, with a fiber direction in each mono-layer being rotated with respect to the fiber direction in an adjacent mono-layer. A separating film is provided on both outer surfaces, the separating film having a porosity of between 40 and 90%. Assemblies and articles with such preformed sheet offer a substantially higher ballistic protection level at a certain weight. An assembly of at least two such sheets and a flexible ballistic-resistant article which includes such an assembly are also provided.