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US 12,275,872 B2Granted
Multilayer tape
AssigneeAvery Dennison Corporation
InventorsHenry W. Milliman, Joseph L. Meckler, Mahesh Ganesan, Luke N. Johnson
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Abstract
Vibration damping viscoelastic damping material laminates are described. The tapes generally include at least two viscoelastic damping material layers and at least one substrate. The tapes may optionally include one or more release liners. Also described are constrained layer systems formed by adhering the tape to a first substrate and/or second substrate undergoing vibration.
Claims33
A tape for damping, the tape comprising:
- a first substrate;
- a second substrate;
- a first layer of viscoelastic damping material at least partially disposed between the first substrate and the second substrate;
- and
- a second layer of viscoelastic damping material wherein the second substrate is at least partially disposed between the first layer of viscoelastic damping material and the second layer of viscoelastic damping material,
- 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.
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A constrained layer system comprising:
- at least one of a first component and a second component undergoing vibration;
- and
- a vibration damping tape comprising
- (i) a first substrate,
- (ii) a second substrate,
- (iii) a first layer of viscoelastic damping material at least partially disposed between the first substrate and the second substrate, and
- (iv) a second layer of viscoelastic damping material wherein the second substrate is at least partially disposed between the first layer of viscoelastic damping material and the second layer of viscoelastic damping material;
- and
- wherein at least one of the first layer of viscoelastic damping material and the second layer of viscoelastic damping material is adhered to at least one of the first component and the second component,
- 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.
9 more elements
Dependencies are inferred from the claim text.