US 12,441,141 B2
Tyre comprising a piezoelectric device
Carmela Mangone, Enschede (NL); Michel Klein Gunnewiek, Enschede (NL); and Louis Reuvekamp, Enschede (NL)
Assigned to Apollo Tyres Global R&D B.V., Enschede (NL)
Appl. No. 17/760,689
Filed by Apollo Tyres Global R&D B.V., Enschede (NL)
PCT Filed Sep. 15, 2020, PCT No. PCT/EP2020/075760
§ 371(c)(1), (2) Date Mar. 15, 2022,
PCT Pub. No. WO2021/052957, PCT Pub. Date Mar. 25, 2021.
Claims priority of application No. 101395 (LU), filed on Sep. 16, 2019.
Prior Publication US 2022/0402312 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B60C 23/00 (2006.01); B60C 1/00 (2006.01); B60C 23/04 (2006.01); C08K 3/04 (2006.01); C08L 9/00 (2006.01)
CPC B60C 23/0411 (2013.01) [B60C 1/0008 (2013.01); C08K 3/04 (2013.01); C08K 3/041 (2017.05); C08L 9/00 (2013.01); C08K 2201/001 (2013.01); C08K 2201/011 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A vehicle tyre comprising a piezoelectric device, characterised in that the piezoelectric device comprises
a layer of a piezoelectric polymer having first and second opposing sides, and
a first and a second layer of an electrically conductive rubber composition provided adjacent to the first and second opposing sides of the layer of piezoelectric polymer,
wherein the piezoelectric polymer is selected from the group of polyvinylidene fluoride (PVDF) polymer or co-polymers and the electrically conductive rubber composition is based on a sulfur crosslinkable rubber component,
wherein the PVDF surface is crosslinked to the electrically conductive rubber composition via a silane having thiocyante groups and ethoxy or methoxy groups, or having thiocyanate groups and ethoxy and methoxy groups.