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US 10,623,846 B2Granted
Earpieces employing viscoelastic materials
AssigneeBose Corporation
InventorsAndrew D. Dominijanni, Shawn J. Prevoir, Lei Cheng, Ryan C. Struzik, Eric M. Wallace, Agota F. Fehervari, Zarif Farhana Mohd Aris
Life of this patent
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Abstract
The disclosure is related to compositions including viscoelastic materials. The compositions are suitable for use in earpieces such as in-ear earpieces.
Claims17
An earpiece, wherein the earpiece:
- has a tip, retaining legs, a body, a channel, or a combination thereof made from a composition comprising one or more elastomers,
- wherein the composition has a calculated low frequency modulus metric (Mlf) score of 0.5 to 1, a calculated high frequency modulus metric (Mhf) score of 0.5 to 1, and a glass transition temperature (Tg) of −25° C. to 30° C.,
- wherein at least one of the one or more elastomers is polynorbornene, polyurethane, styrenic-based thermoplastic elastomer, butyl rubber, acrylic, thermoplastic vulcanizates, or nitrile rubber;
- and
- wherein the composition comprises anti-oxidant, UV stabilizer, curatives, inhibitors, plasticizers, or fillers.
2 more elements
An earpiece, wherein the earpiece:
- has a tip, retaining legs, a body, a channel, or a combination thereof made from a composition comprising polynorbornene, wherein the composition has a calculated low frequency modulus metric (Mlf) score of 0.7 to 1, a calculated high frequency modulus metric (Mhf) score of 0.7 to 1, and a Tg at 10° C. to 30° C., and wherein the composition comprises anti-oxidant, UV stabilizer, curatives, inhibitors, plasticizers, or fillers.
An earpiece, wherein the earpiece:
- has a tip, retaining legs, a body, a channel, or a combination thereof made from a composition comprising one or more elastomers,
- wherein the composition has a storage modulus of 0.5 to 50 MPa at 25° C. and 1 Hz, a glassy modulus of greater than 400 MPa, and a Tg at −25° C. to 30° C.,
- wherein at least one of the one or more elastomers is polynorbornene, polyurethane, styrenic-based thermoplastic elastomer, butyl rubber, acrylic, thermoplastic vulcanizates, or nitrile rubber;
- and
- wherein the composition comprises anti-oxidant, UV stabilizer, curatives, inhibitors, plasticizers, or fillers.
2 more elements
An earpiece, wherein the earpiece:
- has a tip, retaining legs, a body, a channel, or a combination thereof made from a composition comprising polynorbornene, wherein the composition has a calculated low frequency modulus metric (Mlf) score of 0.5 to 1, a calculated high frequency modulus metric (Mhf) score of 0.5 to 1, and a glass transition temperature (Tg) of −25° C. to 30° C.,
- wherein the polynorbornene has a density of 0.8to 1.2kg/dm3, a hardness of 10 to 20 Shore A, and a tensile strength of 2 to 8 MPa, and
- wherein the composition comprises anti-oxidant, UV stabilizer, curatives, inhibitors, plasticizers, or fillers.
Dependencies are inferred from the claim text.