US 11,444,236 B2Granted

Flexible polyoxymethylene-based piezoelectric composites

AssigneeSabic Global Technologies B.V.

InventorsMeghna Markanday, Pradeep Singh, Arun Kumar Sikder, Theo Hoeks, Venkata Ramanarayanan Ganapathy Bhotla, Anantharaman Dhanabalan

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Abstract

A polymer composite thin film exhibiting piezoelectric properties may include a polymer matrix with base material of Polyoxymethylene (POM) and a piezoelectric additive of greater than approximately five (5) percent by weight of the polymer composite thin film. The piezoelectric additives may include BaTiO3 and KNN. The polymer composite thin film exhibits piezoelectric characteristics and may be used in electronic devices in piezoelectric actuators and piezoelectric sensors.

Claims20

Dependent claims

An apparatus, comprising:

a polymer composite thin film exhibiting piezoelectric properties, comprising:
a polymer matrix, in which the polymer matrix comprises polyoxymethylene (POM);
and
a piezoelectric additive comprising greater than approximately five (5) percent by weight of the polymer composite thin film.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/749,359Filed 22 Jan 2020 · us provisional application
Priority: 22 Jan 2019
Published: US 2020/0235281 A123 Jul 2020
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H10N 30/852
Piezoelectric or electrostrictive active materials: composite materials, e.g. having 1-3 or 2-2 type connectivity
G01L 1/16
Measuring force or stress, in general: using properties of piezoelectric devices
H10N 30/092
Forming piezoelectric or electrostrictive materials: forming composite materials
H10N 30/20
Piezoelectric or electrostrictive devices: with electrical input and mechanical output, e.g. functioning as actuators or vibrators

Family

Application62/795,114Us provisional application · filed 22 Jan 2019
US 2020/0235281 A1Pre-grant publication · published 23 Jul 2020
US 11,444,236 B2This patent

From the US filing history. Foreign family members aren’t listed.

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