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:
Mar. 27, 2018
Filed:
Apr. 09, 2013
Upm-kymmene Corporation, Helsinki, FI;
Harri Kosonen, Lappeenranta, FI;
Sami Turunen, Lappeenranta, FI;
Jere Salminen, Lappeenranta, FI;
Petri Myllytie, Porsgrunn, NO;
Kari Luukko, Espoo, FI;
Stefan Fors, Kausala, FI;
UPM-KYMMENE CORPORATION, Helsinki, FI;
Abstract
The invention relates to a composite comprising matrix material and organic natural fiber material. The composite may be a compound, a granulate, or at least a part of a sound reproduction device. The composite may be made by injection molding. According to an embodiment a composite comprises matrix material and organic natural fiber based material, wherein the matrix material comprises a thermoplastic polymer matrix. The composite may comprise a relative sound wave resistance of 1500-5000. The composite may comprise a relative damping of sound radiation of 1.5-5.0. The composite may comprise a dynamic modulus of 2000-11000 measured according to ISO 6721-3. The composite may comprise a relative acoustic quality factor of 5-200. The composite may comprise a relative factor of viscous damping of 0.500-0.005.