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:
Feb. 06, 1990
Filed:
May. 26, 1989
Applicant:
Inventor:
Gregory A Ferro, Hoffman Estates, IL (US);
Assignee:
Imi-Tech Corporation, Elk Grove Village, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428159 ; 264321 ; 4283171 ; 4283173 ; 4284735 ;
Abstract
A body of cured polyimide foam is treated with steam to produce a non-flexible, non-resilient cellular structure. A molding member is impressed into this structure to a depth less than the full thickness of the structure. The structure is then cured to polyimide foam with the molding member removed therefrom either before, during or after the curing has been completed. The resultant articles, which may be laminated, are useful as panels to dampen vibration and sound, and to provide thermal insulation. In addition the articles are flame resistant and flexible.