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:
Dec. 21, 2010
Filed:
Jul. 18, 2003
Mika Meller, Rothrist, CH;
Juerg Weibel, Hagendorn, CH;
Stephen C. Davis, Durham, NC (US);
Scott A. White, Raleigh, NC (US);
Charles Princell, Graham, NC (US);
Mika Meller, Rothrist, CH;
Juerg Weibel, Hagendorn, CH;
Stephen C. Davis, Durham, NC (US);
Scott A. White, Raleigh, NC (US);
Charles Princell, Graham, NC (US);
Armacell Enterprise GmbH, Muenster, DE;
Abstract
The foam tube for pipe insulations has an external surface and an internal surface. The internal surface is provided with an adhesively bonded layer of fibers. The fibers are a material having a melt temperature that is higher than that of the polymeric foam. The fibers are adhesively bonded to the internal surface such as to stand up from the internal surface. The fibers are substantially uniformly distributed over the internal surface providing a surface coverage of 2 to 20 percent. Further, the fibers have a linear density of 0.5 to 25 dtex and a length of 0.2 to 5 mm. With this fiber layer the polymeric foam tube has an improved thermal resistance and thermal conductivity.