Sabic Innovative Plastics IP B.v.

General Electric Company

Meerakani Sait

Philippe Schottland

Vandita Pai-Paranjape

Adil Minoo Dhalla

Yogendrasinh Bharatsinh Chauhan

Shantaram Narayan Naik

Sriramakrishna Maruvada

Kiran Arunkumar Puthamane

Ganapati Shankarling

Mahesh Chaudhari

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

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

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.

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Tamil Nadu, India

Meerakani Sait