IP Library Granted Patent US 7,732,574
Granted Patent B2
US 7,732,574 · App. 10/583,445 · Granted Jun 8, 2010

Wound care products containing keratin

Assignee: Keraplast Technologies, Ltd.
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Quick Facts
Patent No.
US 7,732,574
App. No.
10/583,445
Granted
Jun 8, 2010
Kind
B2
Abstract

The invention relates to a would care product that provides a biochemical environment around a wound to promote wound healing. The wound care product includes a keratin protein fraction material in which the protein fraction is intact, is from the intermediate filament protein family or the high sulfur protein family and in which the protein fraction is S-sulfonated. The invention also described a method of making a wound care product.

Claims (10)

1. A wound care hydrogel comprising S-sulfonated keratin associated with a water soluble polymer through hydrogen bonding and further comprising a protein cross-linking agent.

2. The wound care hydrogel of claim 1 where the S-sulfonated keratin is S-sulfonated keratin intermediate filament protein, the water soluble polymer is selected from the group consisting of polyvinyl alcohol and polyvinyl pyrrolidone and mixtures thereof, and the protein crosslinking agent is selected from the group consisting of glutaraldehyde, formaldehyde, carbodiimide, 2,5-hexanedione, diimidate, bisacrylamide and mixtures thereof.

3. The wound care hydrogel of claim 2 where the protein crosslinking agent comprises glutaraldehyde.

4. A wound care hydrogel comprising S-sulfonated keratin associated with a water soluble polymer through hydrogen bonding.

5. The wound care hydrogel of claim 4 where the S-sulfonated keratin is S-sulfonated keratin intermediate filament protein and the water soluble polymer is selected from the group consisting of polyvinyl alcohol and polyvinyl pyrolidone and mixtures thereof.

6. A method for treating a wound comprising applying a wound site a wound care hydrogel according to claim 1 .

7. A method for treating a wound comprising applying a wound site a wound care hydrogel according to claim 2 .

8. A method for treating a wound comprising applying a wound site a wound care hydrogel according to claim 3 .

9. A method for treating a wound comprising applying a wound site a wound care hydrogel according to claim 4 .

10. A method for treating a wound comprising applying a wound site a wound care hydrogel according to claim 5 .

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Sep 18, 2025
From: KMS VENTURES, LLC
To: KERAPLAST TECHNOLOGIES, LLC
Reel/Frame 072298/0313 →
RELEASE OF SECURITY INTEREST Recorded Sep 18, 2025
From: KMS VENTURES, LLC
To: KERAPLAST TECHNOLOGIES, LLC
Reel/Frame 072298/0575 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 27, 2025
From: KERAPLAST TECHNOLOGIES LIMITED
To: KERAPLAST LIMITED
Reel/Frame 070653/0274 →
SECURITY AGREEMENT Recorded Jun 4, 2010
From: KERAPLAST TECHNOLOGIES, LLC
To: KMS VENUTRES, INC.
Reel/Frame 024483/0526 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 26, 2009
From: KERATEC LIMITED
To: KERAPLAST TECHNOLOGIES, LTD.
Reel/Frame 022328/0419 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2007
From: KELLY, ROBERT J.; RODDICK-LANZILOTTA, ALISA D.; ALI, MOHAMMAD A.
To: KERATEC LIMITED
Reel/Frame 019225/0827 →
Priority Claims (1)
NZ 530296 · Dec 19, 2003 · national
Continuity (1)
Related Publication 20080038327A1 · Feb 14, 2008