IP Library Granted Patent US 7,622,533
Granted Patent B2
US 7,622,533 · App. 11/834,651 · Granted Nov 24, 2009

Biomimetic compounds and synthetic methods therefor

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Quick Facts
Patent No.
US 7,622,533
App. No.
11/834,651
Granted
Nov 24, 2009
Kind
B2
Abstract

Synthesis methods for creating polymeric compounds comprising dihydroxyphenyl derivatives (DHPD), or DHPp i.e. polymers modified with DHPD, with desired surface active effects are described. The polymer backbone of DHPp has structural or performance features that can be tailored to control physical properties of DHPp, allowing it to be useful for different applications i.e. tissue adhesives or sealants, adhesion promoting coatings, and antifouling coatings.

Claims (19)

1. A DHPD-modified linear polymer (DHPp) according to Formula (I):

wherein LG is an optional linking group, DHPD is a dihydroxyphenyl derivative selected from 3,4-dihydroxyphenylalanine or 3,4-dihydroxyhydrocinnamic acid, and pB is a linear polymeric back bone.

2. A polymer of claim 1 wherein the DHPD comprises at least about 1 to about 100 weight percent of the DHPp.

3. A polymer of claim 1 wherein the DHPD comprises at least about 2 to about 65 weight percent of DHPp.

4. A polymer of claim 1 wherein DHPD comprises about 3 to about 55 weight percent of DHPp.

5. A polymer of claim 1 wherein the pB consists essentially of polyalkylene oxide.

6. A polymer according to claim 1 wherein pB is substantially a homopolymer.

7. A DHPD-modified linear polymer DHPp according to Formula (II):

wherein R 1 is a monomer or prepolymer linked or polymerized to form a linear polymeric backbone (pB), DHPD is a dihydroxyphenyl derivative selected from 3,4-dihydroxyphenylalanine or 3,4-dihydroxyhydrocinnamic acid, and LG is an optional linking group.

8. A polymer according to claim 7 wherein R 1 is selected from the group consisting of polyether, polyester, polyamide, polyacrylate, and polyalkyl.

9. A polymer according to claim 7 wherein R 1 is linked through urethane, urea, amide, ester, carbonate, or carbon-carbon bond formation.

10. The polymer of claim 1 , wherein the pB comprises a polyacrylate, a polymethacrylate, a polyacrylamide, a polymethacrylamide, a polyacrylate ester, a polymethacrylate ester, a polyvinylic or a polyallylic polymeric backbone.

11. A polymer of claim 10 , wherein the DHPD comprises at least about 1 to about 100 weight percent of the DHPp.

12. A polymer of claim 10 , wherein the DHPD comprises at least about 2 to about 65 weight percent of DHPp.

13. A polymer of claim 10 , wherein DHPD comprises about 3 to about 55 weight percent of DHPp.

14. The polymer of claim 10 , wherein the polyacrylate, polymethacrylate, polyacrylamide, polymethacrylamide, polyacrylate ester, polymethacrylate ester, polyvinylic or polyallylic polymeric backbone is selected from poly(ethylene glycol) methyl ether methacrylate, poly(ethylene glycol) methyl ether acrylamide, poly(ethylene glycol) methyl ether methacrylamide, acrylamide, N-acryloylmorpholine, 2-hydroxymethacrylate, N-isopropylacrylamide, 2-methoxyethyl acrylate, 3-methacryloylaminopropyldimethyl(3-sulfopropyl)ammonium hydroxide, vinylpyrrolidone, 3-acrylamidopropyl trimethylammonium, allylamine, 1,4-diaminobutane methacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid, ethylene glycolmethacrylate phosphate and 2,2,2-trifluoroethyl methacrylate.

15. A polymer of claim 14 , wherein the DHPD comprises at least about 1 to about 100 weight percent of the DHPp.

16. A polymer of claim 14 , wherein the DHPD comprises at least about 2 to about 65 weight percent of DHPp.

17. A polymer of claim 14 , wherein DHPD comprises about 3 to about 55 weight percent of DHPp.

Assignments (5)
MERGER Recorded Mar 10, 2014
From: KNC NER ACQUISITION SUB, INC.
To: KENSEY NASH CORPORATION
Reel/Frame 032394/0645 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2011
From: NERITES CORPORATION
To: KNC NER ACQUISITION SUB, INC.
Reel/Frame 026355/0762 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2011
From: NERITES CORPORATION
To: KNC NER ACQUISITION SUB, INC.
Reel/Frame 026108/0921 →
CONFIRMATORY LICENSE Recorded Jun 20, 2008
From: NERITES CORPORATION
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 021128/0103 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2008
From: LEE, BRUCE P.
To: NERITES CORPORATION
Reel/Frame 021104/0640 →