Invention Grant
- Patent Title: Rigid polyurethane foams with high acoustic absorption
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Application No.: US14779678Application Date: 2013-03-25
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Publication No.: US09777104B2Publication Date: 2017-10-03
- Inventor: Lutz Boehnke , Joern Beaujean , Rolf Albach , Jun Li , Ling Shi
- Applicant: Covestro Deutschland AG
- Applicant Address: DE Leverkusen
- Assignee: Covestro Deutschland AG
- Current Assignee: Covestro Deutschland AG
- Current Assignee Address: DE Leverkusen
- Agency: K&L Gates LLP
- International Application: PCT/CN2013/073114 WO 20130325
- International Announcement: WO2014/153701 WO 20141002
- Main IPC: C08G18/76
- IPC: C08G18/76 ; C08J9/02 ; C08G18/48 ; C08G18/66 ; C08G18/32 ; C08G101/00
Abstract:
The present invention relates to predominantly (>50 vol %) open-cell (to DIN ISO 4590-5 86), cold-deformable, rigid polyurethane foams which possess high acoustic absorption and a uniform cell structure and which are suitable for producing automotive interior trim, more particularly roof linings and pillar trim.
Public/Granted literature
- US20160046758A1 RIGID POLYURETHANE FOAMS WITH HIGH ACOUSTIC ABSORPTION Public/Granted day:2016-02-18
Information query
