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. 02, 2012
Filed:
Feb. 26, 2007
Dirk Soltau, Düsseldorf, DE;
Michael Hansen, Cologne, DE;
Thomas Gross, Wermelskirchen, DE;
Monika Gruna, Leverkusen, DE;
Dirk Soltau, Düsseldorf, DE;
Michael Hansen, Cologne, DE;
Thomas Gross, Wermelskirchen, DE;
Monika Gruna, Leverkusen, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
A method for producing a lightweight, sound insulating covering (″') for a body component of a motor vehicle, in particular a lightweight dashboard covering, wherein the covering (″′) is produced as a foamed, sound absorbing molded part in a single-stage operation by injecting a reactive mix, comprising polyol and isocyanate, into a cavity () of a foaming tool (), wherein before and/or during the injecting, at least one predetermined surface portion (), defining the cavity () of the foaming tool (), is temperature-controlled in such a manner that the foamed molded part comprises an integral substantially pore free skin () with a thickness of at least 0.5 mm on one side, and comprises an open porous surface () and/or a thinner, sound permeable skin () on its side opposite to said skin ().