IP Library › Granted Patent US 8,632,659
Granted Patent B2
US 8,632,659 · App. 12/971,172 · Granted Jan 21, 2014

Paper sizing composition

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Quick Facts
Patent No.
US 8,632,659
App. No.
12/971,172
Granted
Jan 21, 2014
Kind
B2
Abstract

A stable paper sizing composition comprising a dispersion of ketene dimer and a pH adjusted vinylamine containing polymer is disclosed. The method of preparing the stable sizing composition and the method of using the stable sizing composition is also disclosed.

Claims (12)

1. A stable paper sizing composition comprising:

a) a dispersion of a starch stabilized ketene dimer; and

b) a clear homogeneous solution of a vinylamine-containing polymer having a pH below 3.0, and

wherein the pH of the vinylamine-containing polymer is adjusted using an acid selected from the group consisting of hydrochloric acid, methylsulfonic acid, hydrobromic acid, nitric acid, formic acid and combinations thereof.

2. The composition of claim 1 wherein the pH of the vinylamine-containing polymer is between 2.1 to 2.5.

3. The composition of claim 1 wherein the pH of the vinylamine-containing polymer is adjusted with hydrochloric acid.

4. A paper sizing composition comprising:

a) a dispersion of ketene dimer; and

b) a clear homogeneous solution of a vinylamine-containing polymer having a pH below 3.0,

wherein the ketene dimer is stabilized with a starch having a Degree of Substitution (DS) less than 0.05, prior to combining with a vinylamine,

wherein the pH of the vinylamine-containing polymer is adjusted using an acid selected from the group consisting of hydrochloric acid, methylsulfonic acid, hydrobromic acid, nitric acid, formic acid and combinations thereof, and

wherein the loss of active ketene dimer is no more than 10% over 4 weeks storage at 32° C.

Assignments (24)
SECURITY INTEREST Recorded Nov 14, 2025
From: CHEM-AQUA, INC.; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; NCH CORPORATION; NCH LIFE SCIENCES LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 073570/0838 →
RELEASE OF SECURITY INTEREST Recorded Nov 14, 2025
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 073564/0864 →
SECURITY AGREEMENT (NOTES) Recorded Oct 10, 2025
From: DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 073061/0885 →
RELEASE OF 2023 NOTES PATENT SECURITY INTERESTS Recorded Oct 10, 2025
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
To: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 073074/0198 →
SECURITY AGREEMENT (2024 NOTES) Recorded Jun 24, 2024
From: BIRKO CORPORATION; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 067824/0278 →
2023 NOTES PATENT SECURITY AGREEMENT Recorded Jul 7, 2023
From: BIRKO CORPORATION; SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC; DIVERSEY, INC.; DIVERSEY TASKI, INC.; INNOVATIVE WATER CARE GLOBAL CORPORATION
To: BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 064225/0170 →
SECURITY AGREEMENT (NOTES) Recorded Sep 14, 2022
From: SOLENIS TECHNOLOGIES, L.P.; INNOVATIVE WATER CARE, LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. AS COLLATERAL AGENT
Reel/Frame 061432/0821 →
ABL PATENT SECURITY AGREEMENT Recorded Nov 10, 2021
From: INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: BANK OF AMERICA, N.A.
Reel/Frame 058102/0122 →
RELEASE OF SECURITY INTEREST Recorded Nov 10, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 058856/0724 →
RELEASE OF SECURITY INTEREST Recorded Nov 10, 2021
From: CITIBANK, N.A.
To: SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 058848/0636 →
NOTES SECURITY AGREEMENT Recorded Nov 10, 2021
From: INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 058103/0066 →
TERM LOAN PATENT SECURITY AGREEMENT Recorded Nov 10, 2021
From: INNOVATIVE WATER CARE, LLC; SOLENIS TECHNOLOGIES, L.P.
To: GOLDMAN SACHS BANK USA
Reel/Frame 058102/0407 →
INTELLECTUAL PROPERTY FIRST LIEN SECURITY AGREEMENT RELEASE Recorded Jul 20, 2018
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 046594/0252 →
INTELLECTUAL PROPERTY SECOND LIEN SECURITY AGREEMENT RELEASE Recorded Jul 20, 2018
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 047058/0800 →
SECOND LIEN NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jul 20, 2018
From: SOLENIS TECHNOLOGIES, L.P.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 046629/0213 →
FIRST LIEN NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jul 20, 2018
From: SOLENIS TECHNOLOGIES, L.P.
To: CITIBANK, N.A., COLLATERAL AGENT
Reel/Frame 046595/0241 →
NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS (SECOND LIEN) Recorded Aug 14, 2014
From: SOLENIS TECHNOLOGIES, L.P.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 033535/0847 →
NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS (FIRST LIEN) Recorded Aug 14, 2014
From: SOLENIS TECHNOLOGIES, L.P.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 033535/0806 →
U.S. ASSIGNMENT OF PATENTS Recorded Aug 4, 2014
From: HERCULES INCORPORATED
To: SOLENIS TECHNOLOGIES, L.P.
Reel/Frame 033470/0922 →
RELEASE OF PATENT SECURITY AGREEMENT Recorded Mar 18, 2013
From: THE BANK OF NOVA SCOTIA
To: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; AQUALON COMPANY; ISP INVESTMENTS INC.; HERCULES INCORPORATED
Reel/Frame 030025/0320 →
SECURITY AGREEMENT Recorded Sep 16, 2011
From: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; HERCULES INCORPORATED; AQUALON COMPANY; ISP INVESTMENT INC.
To: THE BANK OF NOVA SCOTIA, AS ADMINISTRATIVE AGENT
Reel/Frame 026918/0052 →
RELEASE OF PATENT SECURITY AGREEMENT Recorded Sep 15, 2011
From: BANK OF AMERICA, N.A.
To: ASHLAND, INC.; ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; AQUALON COMPANY; HERCULES INCORPORATED
Reel/Frame 026927/0247 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 8, 2011
From: EHRHARDT, SUSAN M.; BOTTORFF, KYLE J.
To: HERCULES INCORPORATED
Reel/Frame 026409/0007 →
SECURITY AGREEMENT Recorded Jan 20, 2011
From: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; HERCULES INCORPORATED
To: BANK OF AMERICA, N.A.
Reel/Frame 025664/0290 →