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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.:

US 9845911 B1

PDFFull Text
Date of Patent:
Dec. 19, 2017

Filed:

Feb. 17, 2014

Thermoplastic polymeric foam pipe insulation

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Alain Sagnard, Lachen, CH;

Lars Massueger, Zurich, CH;

Jean-Francois Koenig, Horgen, CH;

Ralph Schmidt, Ettlingen, DE;

Assignee:

Dow Global Technologies LLC, Midland, MI (US);

Attorney:

Steven W. Mork

Primary Examiner:

Walter B Aughenbaugh

Int. Cl.
CPC ...
F16L 59/14 (2006.01); F16L 59/02 (2006.01); F16L 59/12 (2006.01); F16L 59/16 (2006.01); F16L 59/15 (2006.01); F16L 59/153 (2006.01); C08J 9/00 (2006.01); C08J 9/12 (2006.01); C08J 9/14 (2006.01);
U.S. Cl.
CPC ...
F16L 59/145 (2013.01); C08J 9/0019 (2013.01); C08J 9/127 (2013.01); C08J 9/149 (2013.01); F16L 59/02 (2013.01); F16L 59/021 (2013.01); F16L 59/024 (2013.01); F16L 59/025 (2013.01); F16L 59/027 (2013.01); F16L 59/12 (2013.01); F16L 59/14 (2013.01); F16L 59/141 (2013.01); F16L 59/143 (2013.01); F16L 59/15 (2013.01); F16L 59/153 (2013.01); F16L 59/16 (2013.01); C08J 2201/03 (2013.01); C08J 2203/202 (2013.01); C08J 2207/00 (2013.01); C08J 2325/06 (2013.01); C08J 2325/12 (2013.01); Y10T 29/49828 (2015.01); Y10T 428/1376 (2015.01);
Abstract

An article with at least two extruded thermoplastic polymer foam pieces that fit together to form a length of foam having a generally annular cross section, each piece having a concave surface such that the concave surfaces adjoin to form an internal edge defining a hole within the generally annular cross section; wherein each piece has a density less than 36 kilograms per cubic meter, a product of density times average cell size that is less than 17 millimeters*kilogram per cubic meter, and a thermal conductivity of 35 milliwatts per meter*Kelvin or less.

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