Invention Application
- Patent Title: Impact-absorbing members for dynamic impact applications
- Patent Title (中): 用于动态冲击应用的冲击吸收件
-
Application No.: US11272217Application Date: 2005-11-10
-
Publication No.: US20060148919A1Publication Date: 2006-07-06
- Inventor: Myron Maurer , Steven Swartzmiller , Gavin Vogel , Andrew Paquet , Chau Vo , Charles Berglund
- Applicant: Myron Maurer , Steven Swartzmiller , Gavin Vogel , Andrew Paquet , Chau Vo , Charles Berglund
- Main IPC: C08L75/00
- IPC: C08L75/00

Abstract:
Cushions for dynamic impact applications include anisotropic cellular polymers made in an extrusion, expanded bead or reactive foaming process. The anisotropic behavior represented by CE/CT, CV/CT and CH/CT, wherein CE, CV and CH represent the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H, respectively, as measured by compressing a 25-50 mm thick sample of the cellular polymer at a strain rate of 0.08 s−1 to 25% strain, CT represents the sum of CE, CV and CH, and at least one of CE/CT, CV/CT and CH/CT has a value of at least 0.40, up to about 0.80. The cellular polymer also preferably has density of 1.75 to 2.35 pounds/cubic foot and a compressive stress in the direction of maximum compressive strength of 290-600 kPa at 25% strain when used for headliner countermeasure applications. The cushions are useful in automotive applications such as automotive headliners, door panels, knee bolsters, pillars, headrests, seat backs, load floors or instrument panels.
Public/Granted literature
- US07977396B2 Impact-absorbing members for dynamic impact applications Public/Granted day:2011-07-12
Information query