US 11,701,863 B2
Partial coverage multilayer damping laminate
Henry W. Milliman, Painesville, OH (US); and Mahesh Ganesan, Beachwood, OH (US)
Assigned to Avery Dennison Corporation, Mentor, OH (US)
Appl. No. 17/55,773
Filed by Avery Dennison Corporation, Glendale, CA (US)
PCT Filed May 15, 2019, PCT No. PCT/US2019/032421
§ 371(c)(1), (2) Date Nov. 16, 2020,
PCT Pub. No. WO2019/222352, PCT Pub. Date Nov. 21, 2019.
Claims priority of provisional application 62/672,855, filed on May 17, 2018.
Prior Publication US 2021/0229400 A1, Jul. 29, 2021
Int. Cl. B32B 3/18 (2006.01); B32B 7/14 (2006.01); B32B 15/04 (2006.01); B32B 15/20 (2006.01)
CPC B32B 7/14 (2013.01) [B32B 3/18 (2013.01); B32B 15/043 (2013.01); B32B 15/20 (2013.01); B32B 2307/56 (2013.01); B32B 2605/08 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A multilayer damping laminate comprising:
at least one constraining layer; and
a discontinuous damping layer comprising one or more damping material regions and one or more gap regions,
wherein a percent coverage of the discontinuous damping layer by the one or more damping material regions is less than about 99%, and
wherein the multilayer damping laminate has a composite loss factor at about 200 Hz that is greater than about 0.05; and
wherein the average width of the one or more gap regions is less than about 0.200 cm.