Sabic Innovative Plastics IP B.v.

General Electric Company

Nbcuniversal Media, LLC

Sriramakrishna Maruvada

Philippe Schottland

Vandita Pai-Paranjape

Adil Minoo Dhalla

Yogendrasinh Bharatsinh Chauhan

Shantaram Narayan Naik

Kiran Arunkumar Puthamane

Radislav Alexandrovich Potyrailo

Ganapati Shankarling

Meerakani Sait

Marc Brian Wisnudel

David Gilles Gascoyne

Dibakar Dhara

Veeraraghavan Srinivasan

Roopali Rai

Mahesh Chaudhari

Purushotham Adoni

Niles R Rosenquist

Kenneth Brakeley Welles

Brian Lee Lawrence

Eugene George Olczak

Pingfan Peter Wu

William David Smith, Ii

Hendrik Theodorus Van De Grampel

Terry Michael Topka

Bharat Singh

Rupesh Bhikaji Pawar

Jingwu Yang

Micah Sakiestewa Sze

Ashok Menon

Brett D Ermi

Huihui Li

Yaming Niu

Jong-Hyun Park

A composition, comprising, based on the total weight of the polymer components in the composition, 1 to 40 wt. % of an aromatic polycarbonate, 30 to 98.8 wt. % of a polysiloxane-polycarbonate block copolymer, and 0.1 to 10 wt. % of a polysiloxane-polyimide block copolymer comprising more than 20 wt. % polysiloxane blocks, based on the total weight of the polysiloxane-polyimide copolymer. The compositions provide articles with low haze, high luminous transmittance, and good hydro-aging properties. The articles can further be formulated to have excellent flame retardance, particularly when KSS is used.

Polysiloxane-polycarbonate compositions, method of manufacture, and articles formed therefrom

An article comprising the compound of Formula (I): 

Authenticatable articles and methods therefor

A composition comprising compound of formula I, a process for preparing the composition comprising compound of formula I, methods of authentication for an article comprising compound of formula I or compound of formula II, authentication technology for polymer based articles comprising compound of formula I or formula II, methods of facilitating such authentication and method of making articles capable of authentication.

Composition, method of authenticating, methods of making authenticatable compositions, authenticatable articles made there from

A system for altering a functionality of an optical article from a pre-activated state to an activated state, comprising an optical article comprising an optical data layer for storing data, an external radiation source for generating an external stimulus adapted to interact with the optical article, such interaction causing a change in optical accessibility of optically stored data, a directing material, wherein said directing material is for directing the external stimulus to selective portions of the optical article, thereby altering the functionality of the optical article from a pre-activated state to an activated state; a convertible element capable of responding to the external stimulus to irreversibly alter the optical article from the pre-activated state of functionality to the activated state of functionality, wherein said convertible element comprises a color-shift dye, a magnetic material, a thermo-chromic material, a magneto-optical material, a light scattering material, a phase-change material, dye aggregates, or combinations thereof.

Optical article having anti-theft feature and a system and method for inhibiting theft of same

Polysiloxane-polycarbonate compositions, and related methods and articles

A polymer composition is provided which is white and opaque (i.e. shields from light). The polymer composition comprises a blend of (i) a silicon-free polycarbonate polymer and (ii) a polycarbonate-polysiloxane copolymer; a whitener such as titanium dioxide; and (iii) a non-white colorant such as carbon black. The resulting composition, when molded and measured at a thickness of 0.75 mm, has an L* of greater than 80 and a % T of less than 1%. The composition also has good impact strength at low temperatures and good stability during processing.

White light-shielding compositions and articles comprising same

A polycarbonate composition comprising a polycarbonate-polysiloxane copolymer resin and a glass flake additive wherein the polycarbonate-polysiloxane copolymer resin has a silicone content in the range of from 3.5 weight % to 7 weight % based on the total weight of the polycarbonate composition and wherein the polycarbonate-polysiloxane copolymer has a haze of less than 10% and wherein the glass flake additive is present in the range of 0.025 weight % to 0.70 weight % based on the total weight of the polycarbonate composition.

Highly ductile polycarbonate composition having a metallic-flake appearance

Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II, wherein Rand Rare independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2-cycloalkylidene group, or combinations thereof; 'q' is independently an integer from 1-4, L is a linking group, and 'r' is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.

Chemical compositions for authenticatable polymers and articles, and authentication methods thereof

An authenticatable article can comprise a polymer layer comprising a first taggant, and a second taggant disposed adjacent to the first taggant. The relative relationship of the first taggant and the second taggant can be such that at least one of the first taggant and the second taggant can cause an alteration in an emission from the other of the first taggant and the second taggant. One method of authenticating an article comprises illuminating an article and determining if an altered emission is within a selected emission range. The article comprises a polymer layer and a coating disposed on a side of the polymer layer. The polymer layer comprises a first taggant, and the coating causes a predetermined alteration in an emission from the taggant to form the altered emission.

Authenticatable article and method of authenticating

One method for playing a disk, comprises illuminating a first portion of the optical article with a first laser to obtain a first optical signal, wherein the first laser has a first wavelength, illuminating a second portion with a second laser to obtain a second optical signal, wherein the second laser has a second wavelength that is different from the first wavelength, and determining if the optical article is authentic by comparing the first optical signal and the second optical signal.

Authenticatable media and method of authenticating

Disclosed are compositions comprising at least one [benzo[4,5]imidazo(heterocycle)] compound, said [benzo[4,5]imidazo(heterocycle)] compound selected from the group consisting of structures I and II, wherein Rand Rare independently selected from the group consisting of a hydrogen atom, electron withdrawing group, organic group, divalent 1,2-cycloalkylidene group, or combinations thereof; 'q' is independently an integer from 1&#x2013;4, L is a linking group, and 'r' is independently 0 or 1; said at least one [benzo[4,5]imidazo(heterocycle)] compound being present at a concentration sufficient to cause said composition to exhibit upon exposure to an excitation radiation having a wavelength of from about 330 nanometers to about 390 nanometers, a maximum fluorescence emission wavelength of greater than or equal to about 470 nanometers; and a Stokes shift of greater than or equal to about 80 nanometers; wherein the wavelengths are measured in bisphenol A polycarbonate matrix.

An authentication system may comprise: a first light source, a second light source, and at least three optically filtered light sensing devices. The first light source can have a first light source spectral distribution and can be capable of providing sufficient excitation to produce a photoluminescent emission from a medium comprising a luminescent tag and a color. The second light source can have a visible multi-wavelength spectral distribution and can be capable of providing sufficient visible multi-wavelength illumination of the medium to generate a second analog response. Each light sensing device can have a different device spectral sensitivity range.

Authentication system, data device, and methods for using the same

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Evansville, IN, United States of America

Sriramakrishna Maruvada