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专利名称：Method for Producing a Lightweight, Sound
Insulating Covering for Motor Vehicles andCorresponding Covering
发明人：Dirk Soltau,Michael Hansen,Thomas
Gross,Monika Gruna
申请号：US12224258申请日：20070226
公开号：US20120080262A1公开日：20120405
专利附图：
摘要：A method for producing a lightweight, sound insulating covering (″) for a body
component of a motor vehicle, in particular a lightweight dashboard covering, whereinthe covering (″) is produced as a foamed, sound absorbing molded part in a single-stageoperation by injecting a reactive mix, comprising polyol and isocyanate, into a cavity () of afoaming tool (), wherein before and/or during the injecting, at least one predeterminedsurface portion (), defining the cavity () of the foaming tool (9), is temperature-controlledin such a manner that the foamed molded part comprises an integral substantially porefree skin () with a thickness of at least 0.5 mm on one side, and comprises an open poroussurface () and/or a thinner, sound permeable skin () on its side opposite to said skin ().
申请人：Dirk Soltau,Michael Hansen,Thomas Gross,Monika Gruna
地址：Düsseldorf DE,Cologne DE,Wermelskirchen DE,Leverkusen DE
国籍：DE,DE,DE,DE
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