IP Library › Granted Patent US 7,635,778
Granted Patent B2
US 7,635,778 · App. 11/015,352 · Granted Dec 22, 2009

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

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Quick Facts
Patent No.
US 7,635,778
App. No.
11/015,352
Granted
Dec 22, 2009
Kind
B2
Abstract

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.

Claims (10)

1. A composition comprising a compound selected from the group consisting of 3-ethylcarbonate-2-(4-(3-ethylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one, 3-phenylcarbonate-2-(4-(3-phenylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one, 3 tertbutylcarbonate-2-(4-(3-tertbutylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one; 3-tertbutylcarbonate-2-phenyl-4H-chromen-4-one; 3-tertbutylcarbonate-2-biphenyl-4H-chromen-4-one; 2-(benzofuran-2-yl)-3-tertbutylcarbonate-4H-chromen-4-one, and bis(4-oxo-2-phenyl-4H-chromen-3-yl) terephthalate.

2. The composition of claim 1 , wherein the compound is 3-ethylcarbonate-2-(4-(3-ethylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one.

3. The composition of claim 1 , wherein the compound is 3-phenylcarbonate-2-(4-(3-phenylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one.

4. The composition of claim 1 , wherein the compound is 3 tertbutylcarbonate-2-(4-(3-tertbutylcarbonate-4-oxo-4H-chromen-2-yl)phenyl)-4H-chromen-4-one.

5. The composition of claim 1 , wherein the compound is 3-tertbutylcarbonate-2-phenyl-4H-chromen-4-one.

6. The composition of claim 1 , wherein the compound is 3-tertbutylcarbonate-2-biphenyl-4H-chromen-4-one.

7. The composition of claim 1 , wherein the compound is 2-(benzofuran-2-yl)-3-tertbutylcarbonate-4H-chromen-4-one.

8. The composition of claim 1 , wherein the compound is bis(4-oxo-2-phenyl-4H-chromen-3-yl) terephthalate.

9. The composition of claim 1 , further comprising a polymer.

10. The composition of claim 9 , wherein the polymer is a polycarbonate.

Assignments (6)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE THE APPLICATION NUMBER 15039474 PREVIOUSLY RECORDED AT REEL: 054528 FRAME: 0467. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 23, 2021
From: SABIC GLOBAL TECHNOLOGIES B.V.
To: SHPP GLOBAL TECHNOLOGIES B.V.
Reel/Frame 057453/0680 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2020
From: SABIC GLOBAL TECHNOLOGIES B.V.
To: SHPP GLOBAL TECHNOLOGIES B.V.
Reel/Frame 054528/0467 →
CHANGE OF NAME Recorded Jun 12, 2017
From: SABIC INNOVATIVE PLASTICS IP B.V
To: SABIC GLOBAL TECHNOLOGIES B.V.
Reel/Frame 042768/0323 →
RELEASE OF SECURITY INTEREST Recorded Mar 17, 2014
From: CITIBANK, N.A.
To: SABIC INNOVATIVE PLASTICS IP B.V.
Reel/Frame 032459/0798 →
SECURITY AGREEMENT Recorded Aug 18, 2008
From: SABIC INNOVATIVE PLASTICS IP B.V.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 021423/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2008
From: GENERAL ELECTRIC COMPANY
To: SABIC INNOVATIVE PLASTICS IP B.V.
Reel/Frame 020985/0551 →