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

Inventors: Jiang Li (Houston, TX); Lanny Clement (Seabrook, TX); Dawn Elko (Flemington, NJ); Timothy Hegge (Lansdale, PA); Arpad Savoly (Martinsville, NJ)
Assignee: GEO Specialty Chemicals, Inc.
C04B24/04C04B24/005C04B24/02C04B28/14
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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 (11)
FIRST LIEN RELEASE OF SECURITY INTEREST IN PATENTS, RECORDED ON AUGUST 28, 2024 AT REEL 068791 FRAME 0800 Recorded May 5, 2026
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: NEW ARCLIN U.S. HOLDING CORP.; HANDY ACQUISITION CORP.; HANDY CHEMICALS (U.S.A.) LTD.; RG DISPERSANTS USA LLC
Reel/Frame 075777/0516 →
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 →
Continuity (1)
Provisional Application 62486736 · Apr 18, 2017