IP Library › Granted Patent US 9,441,092
Granted Patent B2
US 9,441,092 · App. 14/170,224 · Granted Sep 13, 2016

Hydrogen sulfide scavenger

Inventor: Jean Valery Martin (Princeton, NJ)
C08K5/175C08K5/0008C08K5/0091C08L95/00
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Quick Facts
Patent No.
US 9,441,092
App. No.
14/170,224
Granted
Sep 13, 2016
Kind
B2
Abstract

The present disclosure is related to a family of metals chelates for use as a hydrogen sulfide scavenger in asphalt, and the preparation thereof. The metal chelates, in particular amino acid metal chelates, are particularly efficient at reducing the hydrogen sulfide emissions of asphalt.

Claims (5)

1. A composition comprising:

(i) asphalt or an asphalt mix, and

(ii) an amino acid metal chelate, wherein the amino acid metal chelate is selected from the group consisting of copper bis-glycinate and zinc bis-glycinate.

2. A method of reducing hydrogen sulfide emission from asphalt or from the preparation of asphalt, comprising the step of:

(i) combining an amino acid metal chelate to as or asphalt mix, wherein the amino add metal chelate is selected from the group consisting of copper bis-glycinate and zinc bis-glycinate.

Assignments (6)
PATENT SECURITY AGREEMENT (ABL) Recorded Feb 10, 2020
From: INNOPHOS, INC.; INNOPHOS, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 051858/0131 →
PATENT SECURITY AGREEMENT (TL) Recorded Feb 10, 2020
From: INNOPHOS, INC.; INNOPHOS, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 051858/0161 →
RELEASE OF SECURITY INTEREST Recorded Feb 7, 2020
From: WELLS FARGO BANK, NATIONAL ASSOCIATION
To: INNOPHOS, INC.
Reel/Frame 051749/0537 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2017
From: MARTIN, JEAN VALERY
To: INNOPHOS, INC.
Reel/Frame 041503/0698 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR'S AND ASSIGNEE'S NAMES PREVIOUSLY RECORDED ON REEL 040766 FRAME 0342. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST AGREEMENT DATED 12/22/2016.. Recorded Dec 29, 2016
From: INNOPHOS, INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 041236/0001 →
SECURITY INTEREST Recorded Dec 26, 2016
From: INNOPHOS, INC,
To: WELLSFARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 040766/0342 →
Continuity (1)
Related Publication 20150218342A1 · Aug 6, 2015