US 12,291,619 B2
Epoxy based reinforcing patches having improved damping loss factor
Thanikaivelan Tindivanam Veeraraghavan, Newburgh, IN (US); Ramanathan Lakshminarayan, Newburgh, IN (US); and Brandon Allen Willis, Newburgh, IN (US)
Assigned to Uniseal, Inc., Evansville, IN (US)
Filed by Thanikaivelan Tindivanam Veeraraghavan, Newburgh, IN (US); Ramanathan Lakshminarayan, Newburgh, IN (US); and Brandon Allen Willis, Newburgh, IN (US)
Filed on Feb. 20, 2024, as Appl. No. 18/581,987.
Application 18/581,987 is a continuation of application No. 18/115,443, filed on Feb. 28, 2023, granted, now 11,905,384, issued on Feb. 20, 2024.
Application 18/115,443 is a continuation of application No. 17/752,215, filed on May 24, 2022, granted, now 11,591,447, issued on Feb. 28, 2023.
Application 17/752,215 is a continuation of application No. 16/180,340, filed on Nov. 5, 2018, granted, now 11,339,262, issued on May 24, 2022.
Claims priority of provisional application 62/588,620, filed on Nov. 20, 2017.
Prior Publication US 2024/0228719 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08J 9/00 (2006.01); C03C 25/1095 (2018.01); C03C 25/36 (2006.01); C03C 25/47 (2018.01); C08G 18/00 (2006.01); C08J 9/04 (2006.01); C08J 9/32 (2006.01); C09J 7/21 (2018.01); C09J 7/35 (2018.01); C09J 163/04 (2006.01); C09J 175/04 (2006.01)
CPC C08J 9/0085 (2013.01) [C03C 25/1095 (2013.01); C03C 25/36 (2013.01); C03C 25/47 (2018.01); C08G 18/003 (2013.01); C08J 9/32 (2013.01); C09J 7/21 (2018.01); C09J 7/35 (2018.01); C09J 163/04 (2013.01); C09J 175/04 (2013.01); C08G 2270/00 (2013.01); C08J 9/04 (2013.01); C08J 2201/038 (2013.01); C08J 2205/06 (2013.01); C08J 2205/08 (2013.01); C08J 2205/10 (2013.01); C08J 2207/02 (2013.01); C08J 2375/04 (2013.01); C09J 2301/412 (2020.08); C09J 2400/143 (2013.01); C09J 2400/263 (2013.01); C09J 2463/00 (2013.01); C09J 2475/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A reinforcing sheet, comprising:
at least one layer of a reinforcing material;
a thermosetting adhesive associated with at least a portion of the reinforcing material, wherein the thermosetting adhesive includes a curing agent, and an epoxy-modified dimerized fatty acid combined with an epoxy terminated polyurethane interpenetrating network; and
wherein the thermosetting adhesive improves damping loss of the reinforcing material relative to the same without the thermosetting adhesive.