Authenticatable articles and methods therefor

• US 8,283,015 B2
• Filed: 04/18/2011
• Issued: 10/09/2012
• Est. Priority Date: 09/29/2006
• Status: Expired due to Fees

• Current Assignee: Sabic Innovative Plastics IP BV (Government of Saudi Arabia)
• Original Assignee: Sabic Innovative Plastics IP BV (Government of Saudi Arabia)
• Inventors: Chauhan, Yogendrasinh Bharatsinh, Dhalla, Adil Minoo, Maruvada, Sriramakrishna, Naik, Shantaram Narayan, Pai-Paranjape, Vandita, Puthamane, Kiran, Schottland, Philippe
• Primary Examiner(s): HIGGINS, GERARD T
• Application Number:
  US13/088,855
• Publication Number:
  US 20110196075A1
• Time in Patent Office: 540 Days
• Field of Search: 428/64.4, 428/64.8, 428/64.7, 428/412, 428/913, 428/916
• US Class Current: 428/64.4
• 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:

a polycarbonate polymer; and

a first compound of Formula (I);

incorporated in the polycarbonate polymer

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

10<sup>−

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

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

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

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

6. The article of claim 4, wherein the first compound is of Formula (VI):

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

8. The article of claim 1, further comprising a second compound of Formula (I) which is different from the first compound.

9. The article of claim 1, wherein the first compound of Formula (I) has a T_d of greater than 290°

C.

10. The article of claim 1, wherein the first compound of Formula (I) has a T_d of from 295°

C. to 350°

C.

11. An article made by:

incorporating an authentication compound of Formula (I) in a polycarbonate polymer to provide an authenticatable polymer;

12. The article of claim 11, wherein the article is an optical disc.

13. An article comprising:

a polycarbonate polymer; and

a compound of Formula (III), Formula (VII), or Formula (X);

incorporated in the polycarbonate polymer