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, 2014
Filed:
Mar. 15, 2012
David D. Kragten, Burnsville, NC (US);
Christy Karr, Imperial, PA (US);
Scott Van Remortel, Bakersville, NC (US);
Robert Ratcliff, Bakersville, NC (US);
Ibezim Anazia, Burnsville, NC (US);
Louis M. Schlesinger, Spruce Pine, NC (US);
David D. Kragten, Burnsville, NC (US);
Christy Karr, Imperial, PA (US);
Scott Van Remortel, Bakersville, NC (US);
Robert Ratcliff, Bakersville, NC (US);
Ibezim Anazia, Burnsville, NC (US);
Louis M. Schlesinger, Spruce Pine, NC (US);
Unimin Corporation, New Canaan, CT (US);
Abstract
An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or 'engineered' particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size 'engineered' powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.