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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 11970571 B1

PDFFull Text
Date of Patent:
Apr. 30, 2024

Filed:

Oct. 26, 2021

Polyol-epoxide polymers for nvh damping applications

Applicant:

Stepan Company, Northfield, IL (US);

Inventors:

Michael E. O'Brien, Hainesville, IL (US);

Warren A. Kaplan, Libertyville, IL (US);

Sarah Wolek, Arlington Heights, IL (US);

Jennifer S. Westfall, McDonald, PA (US);

Calvin Gang, Chicago, IL (US);

Assignee:

STEPAN COMPANY, Northfield, IL (US);

Attorney:

DILWORTH IP, LLC

Primary Examiner:

Randy P Gulakowski

Assistant Examiner:

Ha S Nguyen

Int. Cl.
CPC ...
C08G 59/06 (2006.01); C08G 59/24 (2006.01); C08G 59/42 (2006.01); C08G 59/62 (2006.01); C08G 59/68 (2006.01); C08G 59/72 (2006.01); C08G 65/331 (2006.01); C08L 67/02 (2006.01); C08L 71/08 (2006.01); G10K 11/162 (2006.01);
U.S. Cl.
CPC ...
C08G 59/063 (2013.01); C08G 59/245 (2013.01); C08G 59/686 (2013.01); C08G 59/72 (2013.01); C08L 67/02 (2013.01); C08L 71/08 (2013.01); C08G 2170/00 (2013.01); C08G 2350/00 (2013.01);
Abstract

Noise, vibration, or harshness (NVH) properties of an industrial or consumer product are reduced by incorporating therein an effective amount of a polyether- or polyester-epoxide polymer (PEEP) composition. The PEEP compositions are one-component or two-component reaction products of a polyepoxide compound and a polyol composition. The PEEP compositions have a glass-transition temperature within the range of −50° C. to 50° C. and a loss factor of at least 0.5 by ASTM D5992 over a temperature range of at least 15 Celsius degrees at one or more frequencies within the range of 0.1 to 10,000 Hz. The PEEP compositions provide NVH damping over a broad temperature range, have improved flexibility compared with conventional epoxy technologies, avoid amine and isocyanate reactants, and can be tailored to meet target specifications.

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