Resumes
Resumes
Edward Benjaminsen Phones & Addresses
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1922 Blacks School House Rd, Westminster, MD 21158 (410) 346-6507 (410) 346-6765
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1316 Holt Ct, Sykesville, MD 21784 (410) 552-1191
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Ellicott City, MD
Publications
Us Patents
Open Cell Foam And Manufacture Of Open Cell Foam Products
View pageUS Patent:
20110098373, Apr 28, 2011
Filed:
Jul 9, 2008
Appl. No.:
12/601070
Inventors:
Edward Benjaminsen - Westminster MD, US
Assignee:
SENSTAT PRODUCTS & TECHNOLOGIES, INC. - Westminster MD
International Classification:
C08J 9/06
C08F 110/02
C08F 114/06
C08F 210/00
C08F 12/08
C08F 218/08
C08F 110/06
C08F 110/02
C08F 114/06
C08F 210/00
C08F 12/08
C08F 218/08
C08F 110/06
US Classification:
521144, 521143, 521145, 521146, 521149
Abstract:
A foam form sheet material having a first large surface comprising substantially only closed cells and an opposite large surface and an interior comprising substantially only open cells. This material comprises a cross linked olefin thermoplastic polymer or copolymer. The foam is made by mixing the polymer with a blowing agent and a cross linking agent. The mixture is maintained in a two roll mill means for a time sufficient to initiate cross linking and to initiate foaming to form closed cells. The sheet material is then disposed in a second two roll mill means having a nip that is larger than the thickness of the foamed sheet material and maintained under elevated temperature and pressure sufficient to initiate further cross linking and foaming. The fully cross linked cell foam is then compressed to rupture the closed cells that are disposed in the interior to form open cells.