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.

Date of Patent:
Sep. 05, 2023

Filed:

Sep. 11, 2019
Applicant:

United States of America As Represented BY the Administrator of Nasa, Washington, DC (US);

Inventors:

Christopher J. Wohl, Portsmouth, VA (US);

Joseph G. Smith, Jr., Smithfield, VA (US);

Devon Beck, Oakland Township, MI (US);

Lilly Lynn Balderson, Aylett, VA (US);

Yi Lin, Yorktown, VA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/24 (2006.01); C08L 63/00 (2006.01); C08K 5/549 (2006.01); C08G 59/50 (2006.01); C09D 163/00 (2006.01); C08G 59/22 (2006.01);
U.S. Cl.
CPC ...
C08G 59/245 (2013.01); C08G 59/226 (2013.01); C08G 59/50 (2013.01); C08K 5/549 (2013.01); C08L 63/00 (2013.01); C09D 163/00 (2013.01); C08L 2207/53 (2013.01);
Abstract

In an illustrative example, one or more coating formulations may be used and may have characteristics useful in different situations. During evaluations, a plurality of coating formulations comprising epoxy resins and diamine hardeners were prepared and evaluated with regards to impact ice adhesion strength and durability. Alone, such coating formulations provided a significantly reduced impact ice adhesion strength as compared to uncoated aluminum and/or stainless steel surfaces. However, a durability of the coatings, when applied to aluminum or stainless steel surfaces, was insufficient to be considered for use on external aircraft surfaces. By including nano-sized and/or micro-sized particles as additives to the coating formulations, resulted in improved durability without significantly reducing ice adhesion performance of the resin base.


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