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:
Apr. 26, 2011
Filed:
May. 30, 2008
Myron J. Maurer, Saginaw, MI (US);
Gavin D. Vogel, Lake Orion, MI (US);
Byoung-ho Choi, Uijeongbu-Si, KR;
Warren H. Griffin, Saginaw, MI (US);
Kalyan Sehanobish, Rochester, MI (US);
Myron J. Maurer, Saginaw, MI (US);
Gavin D. Vogel, Lake Orion, MI (US);
Byoung-Ho Choi, Uijeongbu-Si, KR;
Warren H. Griffin, Saginaw, MI (US);
Kalyan Sehanobish, Rochester, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
An improved energy absorbing member comprising, an thermoplastic cellular polymer in contact with a structural element such as a metal guard rail or automotive door, wherein the cellular polymer has an average cell size of at least about 0.75 mm and at least one of C/C, C/Cand C/Cis about 0.25 to about 0.4 said one of C/C, C/Cand C/Chaving a compressive efficiency of at least 70% at a 60% strain, C, Cand Cbeing the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H where one of these directions is the direction of maximum compressive strength in the foam and Cequals the sum of C, Cand C.