US 11,713,406 B2
Multilayer tape
Henry W. Milliman, Willoughby, OH (US); Joseph L. Meckler, Cleveland, OH (US); Mahesh Ganesan, Beachwood, OH (US); and Luke N. Johnson, Painesville, OH (US)
Assigned to Avery Dennison Corporation, Mentor, OH (US)
Appl. No. 16/330,643
Filed by Avery Dennison Corporation, Glendale, CA (US)
PCT Filed Sep. 20, 2017, PCT No. PCT/US2017/052419
§ 371(c)(1), (2) Date Mar. 5, 2019,
PCT Pub. No. WO2018/057570, PCT Pub. Date Mar. 29, 2018.
Claims priority of provisional application 62/397,073, filed on Sep. 20, 2016.
Prior Publication US 2021/0277285 A1, Sep. 9, 2021
Int. Cl. C09J 7/28 (2018.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); F16F 9/30 (2006.01); C09J 7/40 (2018.01)
CPC C09J 7/28 (2018.01) [C09J 7/29 (2018.01); C09J 7/383 (2018.01); C09J 7/385 (2018.01); C09J 7/40 (2018.01); F16F 9/306 (2013.01); C09J 2203/00 (2013.01); C09J 2301/1242 (2020.08); C09J 2301/302 (2020.08); C09J 2400/163 (2013.01); C09J 2409/00 (2013.01); C09J 2433/00 (2013.01); C09J 2483/00 (2013.01); Y10T 428/1476 (2015.01)] 31 Claims
OG exemplary drawing
 
1. A tape for damping, the tape comprising:
a substrate defining a first face and an oppositely directed second face;
a first layer of viscoelastic damping material at least partially disposed on the first face of the substrate; and
a second layer of viscoelastic damping material at least partially disposed on the second face of the substrate;
wherein the substrate has a thickness within a range of from about 5 μm to about 3,000 μm, and each of the viscoelastic damping material layers has a thickness within a range of from about 2 μm to about 5,000 μm;
wherein the first layer of viscoelastic damping material and the second layer of the viscoelastic damping material, each comprise a first surface and the second surface; and
wherein the first layer of viscoelastic damping material or the second layer of the viscoelastic damping material or both comprise a compositional gradient providing a gradual change in material properties from the first surface of the viscoelastic damping material to the second surface of the viscoelastic damping material;
wherein the first and second layers of viscoelastic damping material are at least one of continuous and substantially continuous; and
wherein the first layer of viscoelastic damping material and the second layer of viscoelastic damping material are each selected from the group consisting of elastomers, butyl rubber, styrenic block copolymer, polyurethanes, silicone rubbers, nitrile rubber, isoprene, butadiene, viscoelastic polymer gels, pressure sensitive adhesives, non-pressure sensitive adhesives, and combinations thereof.