IP Library › Patent Application 12552776
Patent Application
App. No. 12/552,776

Protein/Cationic Polymer Compositions Having Reduced Viscosity

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Quick Facts
Patent No.
US None
App. No.
12/552,776
Abstract

The present invention discloses an adhesive composition comprising a protein component, an azetidinium functionalized polymer component and a viscosity modifying component. The preferred protein is a soy protein and the viscosity modifying component is preferably a sulfite reducing agent, a thiol, or combinations thereof. The invention provides for a high solids, lower viscosity adhesive formulation. The present invention also relates to a composite and a method of making a composite comprising a substrate and the adhesive composition of the present invention.

Claims (18)

1 . An adhesive composition comprising

a) a protein component,

b) an azetidinium functionalized polymer, and

c) one or more viscosity-modifying components selected from the group consisting of sulfite reducing agents, thiols, and combinations thereof.

2 . The composition of claim 1 where the azetidinium functionalized polymer is an amine-epichlorohydrin polymer.

3 . The composition of claim 1 where the azetidinium functionalized polymer is a polyamidoamine-epichlorohydrin polymer (PAE polymer).

4 . The composition of claim 1 where the protein component is a soy protein.

5 . The composition of claim 4 where the azetidinium functionalized polymer is a PAE polymer.

6 . The composition of claim 5 wherein the viscosity-modifying component is sodium bisulfite.

7 . The composition of claim 1 wherein the viscosity-modifying component is sodium bisulfite.

8 . The composition of claim 1 wherein the amount of viscosity-modifying additive is from 1 part modifier to 100,000 parts protein to 1 part modifier to 10 parts protein.

9 . The composition of claim 1 wherein the pH of the composition is between 4.5 and 7.5.

10 . The composition of claim 6 wherein the pH of the composition is between 4.5 and 7.5.

11 . The composition of claim 1 wherein the pH of the composition is between 5 and 7.

12 . The composition of claim 1 wherein the solids content of the compositions is greater than 25%.

13 . The composition of claim 1 wherein the solids content of the composition is greater than 30%.

14 . The composition of claim 1 wherein the viscosity of the composition is less than 150,000 cP.

15 . The composition of claim 13 wherein the viscosity of the composition is less than 150,000 cP and the solids content is greater than 25%.

Assignments (7)
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 →
SECURITY AGREEMENT Recorded Apr 14, 2010
From: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; AQUALON COMPANY; HERCULES INCORPORATED
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 024225/0289 →
RELEASE OF SECURITY INTEREST Recorded Apr 13, 2010
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC; AQUALON COMPANY; HERCULES INCORPORATED
Reel/Frame 024218/0928 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 30, 2010
From: SPRAUL, BRYAN K.; ALLEN, ANTHONY J.
To: HERCULES INCORPORATED
Reel/Frame 024162/0170 →
SUPPLEMENTAL PATENT SECURITY AGREEMENT Recorded Nov 23, 2009
From: HERCULES INCORPORATED
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 023559/0122 →