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:
Jun. 24, 2003
Filed:
Nov. 14, 2001
Vahid Sendijarevic, Troy, MI (US);
Other;
Abstract
The invention relates to a polymeric foam, preferably a polyurethane foam, having a glass transition temperature, T , which is at or above room temperature (21° C.). The foam is rigid at room temperature and elastic above the T . The foam has shape memory such that when it is deformed at a temperature above the T and the temperature is then lowered to room temperature or below, the foam retains its deformed shape, and when the temperature is then raised above the T the foam returns substantially to its original shape. In other words, the foam possesses hibernated elastic memory in the rigid state. The foam is also hydrophobic, which allows it to be used in many applications where hydrophilic foams are unsuitable.