AUTHENTICATABLE ARTICLES AND METHODS THEREFOR

• US 20080081210A1
• Filed: 09/29/2006
• Published: 04/03/2008
• Est. Priority Date: 09/29/2006
• Status: Abandoned Application

• Current Assignee: Sabic Innovative Plastics IP BV (Government of Saudi Arabia)
• Original Assignee: General Electric Company
• Inventors: Naik, Shantaram Narayan, Chauhan, Yogendrasinh Bharatsinh, Maruvada, Sriramakrishna, Dhalla, Adil Minoo, Schottland, Philippe, Puthamane, Kiran, Pai-Paranjape, Vandita
• Application Number:
  US11/536,821
• Publication Number:
  US 20080081210A1
• Time in Patent Office: Days
• US Class Current: 428/644
• CPC Class Codes: C07D 263/57 Aryl or substituted aryl radicals
• CPC Class Codes: C07D 277/66 with aromatic rings or ring systems directly attached in position 2
• CPC Class Codes: C08K 5/353 Five-membered rings
• CPC Class Codes: C08K 5/47 Thiazoles
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1011 Condensed systems
• CPC Class Codes: C09K 2211/1033 with oxygen
• CPC Class Codes: C09K 2211/1037 with sulfur
• CPC Class Codes: C09K 9/02 Organic tenebrescent materials
• CPC Class Codes: G11B 19/12 by sensing distinguishing features of or on records, e.g. diameter end mark
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00173 wherein the origin of the content is checked, e.g. determining whether the content has originally been retrieved from a legal disc copy or another trusted source
• CPC Class Codes: G11B 20/00608 wherein the material that the record carrier is made of is altered, e.g. adding reactive dyes that alter the optical properties of a disc after prolonged exposure to light or air
• CPC Class Codes: G11B 2220/2537 Optical discs
• CPC Class Codes: G11B 7/2534 polycarbonates [PC]
• CPC Class Codes: Y10T 428/12694 and next to Cu- or Fe-base component
• CPC Class Codes: Y10T 428/31507 Of polycarbonate

Abstract

An article comprising the compound of Formula (I):

• • wherein R¹ is selected from the group consisting of an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; R² and R³ are independently selected from the group consisting of a hydroxyl group, a halogen atom, an aliphatic functionality having 1 to 12 carbons, an aromatic functionality having 3 to 20 carbons, and a cycloaliphatic functionality having 3 to 20 carbons; Y is either an oxygen atom or a sulfur atom; “n” has a value of 0 to 4; and “m” has a value of 0 to 3.

Claims

1. An article comprising the compound of Formula (I):

2. The article of claim 1, wherein the article comprises polycarbonate and from about 1×

10<sup>−

7</sup> percent by weight to about 10 percent by weight of the compound of Formula (I) based on the weight of the polymer.

3. The article of claim 1, wherein the compound of Formula (I) has a Stokes shift of greater that about 50 nanometers.

4. The article of claim 1, wherein the compound of Formula (I) comprises a compound selected from the group consisting of Formula (II), Formula (III), Formula (IV), Formula (V), Formula (VI), Formula (VII), Formula (VIII), Formula (IX), and Formula (X):

5. The article of claim 4, wherein the article comprises a compound of Formula (II):

6. The article of claim 4, wherein the article comprises a compound of Formula (III):

7. The article of claim 4, wherein the article comprises a compound of Formula (VI):

8. The article of claim 4, wherein the article comprises a compound of Formula (VII):

9. The article of claim 1, wherein the article is an optical disc.

10. The article of claim 1, further comprising a second compound of Formula (I).

11. A method of making an article comprising:

incorporating an authentication compound of Formula (I) in a polymer to provide an authenticatable polymer, and

forming an article from the authenticatable polymer;

wherein the authentication compound of Formula (I) is present in an amount of about 1×

10<sup>−

7</sup> percent by weight to about 10 percent by weight based on the weight of the polymer.

12. An article made by the method of claim 11.