IP Library › Granted Patent US 10,626,049
Granted Patent B1
US 10,626,049 · App. 15/936,775 · Granted Apr 21, 2020

Polycarboxylate-based superplasticizer compositions and methods of use

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Quick Facts
Patent No.
US 10,626,049
App. No.
15/936,775
Granted
Apr 21, 2020
Kind
B1
Abstract

A dispersant composition for use in gypsum and/or cementitious compositions that includes, in combination, a polycarboxylate-based superplasticizer and a synergistically effective amount of an aluminum salt. The presence of the aluminum salt, such as aluminum chlorohydrate, improves the performance of the polycarboxylate-based superplasticizer.

Claims (7)

1. A method for improving the dispersant performance of a polycarboxylate-based superplasticizer in gypsum comprising combining a synergistically effective amount of an aluminum salt with the polycarboxylate-based superplasticizer.

2. The method according to claim 1 , wherein the aluminum salt is aluminum chlorohydrate.

3. A method for improving the dispersant performance of a polycarboxylate-based superplasticizer in cementitious compositions comprising combining a synergistically effective amount of an aluminum salt with the polycarboxylate-based superplasticizer.

4. The method according to claim 3 , wherein the aluminum salt is aluminum chlorohydrate.

5. A dispersant composition for use in gypsum and/or cementitious compositions, the dispersant composition consisting of, in combination, a polycarboxylate-based superplasticizer and a synergistically effective amount of an aluminum salt.

6. The dispersant composition according to claim 5 , wherein the aluminum salt is aluminum chlorohydrate.

7. A dispersant composition for use in gypsum, the dispersant composition comprising, in combination, a polycarboxylate-based superplasticizer and a synergistically effective amount of an aluminum salt.

Assignments (10)
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Aug 28, 2024
From: RG DISPERSANTS USA LLC; HANDY CHEMICALS (U.S.A.) LTD.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 068791/0800 →
SECOND LIEN PATENT SECURITY AGREEMENT Recorded Aug 28, 2024
From: RG DISPERSANTS USA LLC; HANDY CHEMICALS (U.S.A.) LTD.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 068791/0807 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2024
From: GEO SPECIALTY CHEMICALS, INC.
To: RG DISPERSANTS USA LLC
Reel/Frame 068113/0254 →
RELEASE OF SECURITY INTEREST Recorded Jun 30, 2024
From: TWIN BROOK CAPITAL PARTNERS, LLC, AS ADMINISTRATIVE AGENT
To: RG DISPERSANTS USA LLC
Reel/Frame 067877/0761 →
RELEASE OF SECURITY INTEREST Recorded Sep 25, 2019
From: CITIZENS BANK, N.A.
To: GEO SPECIALTY CHEMICALS, INC.
Reel/Frame 050486/0061 →
RELEASE OF SECURITY INTEREST Recorded Sep 4, 2019
From: U.S. BANK NATIONAL ASSOCIATION
To: GEO SPECIALTY CHEMICALS, INC.
Reel/Frame 050264/0881 →
SECURITY INTEREST Recorded Aug 30, 2019
From: GEO SPECIALTY CHEMICALS, INC.
To: TWIN BROOK CAPITAL PARTNERS, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 050219/0608 →
SECURITY INTEREST Recorded Jan 11, 2019
From: GEO SPECIALTY CHEMICALS, INC.
To: CITIZENS BANK, N.A.
Reel/Frame 047968/0591 →
CORRECTIVE ASSIGNMENT TO CORRECT THE TITLE OF THE INVENTION PREVIOUSLY RECORDED AT REEL: 045368 FRAME: 0514. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jan 4, 2019
From: LI, JIANG; CLEMENT, LANNY; ELKO, DAWN; HEGGE, TIMOTHY; SAVOLY, ARPAD
To: GEO SPECIALTY CHEMICALS, INC.
Reel/Frame 049648/0701 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 28, 2018
From: LI, JIANG; CLEMENT, LANNY; ELKO, DAWN; HEGGE, TIMOTHY; SAVOLY, ARPAD
To: GEO SPECIALTY CHEMICALS, INC.
Reel/Frame 045368/0514 →