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:
Aug. 05, 2003
Filed:
Oct. 18, 2001
Applicant:
Inventors:
Ronald Van Den Bosch, St Jansteen, NL;
Hans A. G. De Vos, Terneuzen, NL;
Assignee:
Dow Global Technologies Inc., Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/00 ;
U.S. Cl.
CPC ...
C08J 9/00 ;
Abstract
A process is disclosed for preparing an open-celled rigid polyurethane foam by reacting an organic polyisocyanate with a polyol in the presence of a blowing agent, a cell opening agent and exfoliating graphite, wherein the thermal conductivity of the foam is from 28 to 35 mw/mk. Such foams are applicable in the construction industry where it is desired to have a foam having flame retardation properties and a low thermal conductivity.