Sabic Global Technologies B.v.

Meghna Markanday

Venkata Ramanarayanan Ganapathy Bhotla

Pradeep Kumar Singh

Anantharaman Dhanabalan

Theo Hoeks

Arun Sikder

Mohamed Ashraf Moideen

Jan Henk Kamps

Pradeep Jeevaji Nadkarni

Balakrishnan Ganesan

Girish Koripelly

Suresh Velate

Anshita Sudarshan

Nandini D R

Arun Kumar Sikder

Disclosed are piezoelectric compositions and films with high D33 values and improved surface smoothness, scratch resistance and/or adhesion. The compositions and films can have a combination of benefits over the prior art compositions and films by having two different polymers (i.e., EVA and PVDF-TrFE-CFE) blended into a polymer matrix, to which is added piezoelectric additives like PZT, BaTiO3, etc. at greater than 70-90 wt. % loading. Devices utilizing the compositions and films are also disclosed. Such devices can include sensors, transducers, actuators, or wearable devices.

Piezoelectric composition and films with high D33 values and improved adhesion and flexibility

A piezoelectric composite material is formed from a cellulosic material and an inorganic piezoelectric material dispersed in a piezoelectric polymer. The piezoelectric polymer of the composite material has a dielectric constant of from 10 or more. A method of making a piezoelectric is also disclosed wherein a matrix of a cellulosic material, an inorganic piezoelectric material, and a piezoelectric polymer material is formed. The matrix is formed into a piezoelectric composite body.

Piezoelectric composite material and method

Piezoelectric composites are described. A piezoelectric composite can include a polymeric matrix, piezoelectric additive(s), and polyol. Methods of making and using the piezoelectric composite are also described.

Piezoelectric compositions and uses thereof

Oxygen scavenging polymeric compositions that possess an improved oxygen scavenging capability and can be formed into transparent/translucent thin films are disclosed. A composition can include iron powder, ferrous sulfate heptahydrate (FeSO.7HO) and glycerol dispersed in polyethylene. Such compositions are useful for creating packaging films with improved oxygen scavenging capability.

Polyolefin compositions with improved oxygen scavenging capability

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 BaTiOand KNN. The polymer composite thin film exhibits piezoelectric characteristics and may be used in electronic devices in piezoelectric actuators and piezoelectric sensors.

Flexible polyoxymethylene-based piezoelectric composites

A photochromic dye comprising at least one compound characterized by Formula I: 

Photochromic spirooxazine compounds

In one aspect, the invention relates to relates to copolymer compositions comprising domains of polycarbonate and polyacrylate, and to methods of preparing the copolymers, wherein the method comprises reacting a polycarbonate macroinitator with a vinyl monomer by atom transfer radical polymerization. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

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Bengaluru, India

Meghna Markanday