IP Library Granted Patent US 10,435,523
Granted Patent B2
US 10,435,523 · App. 15/388,355 · Granted Oct 8, 2019

Material comprising outer layer having entanglement of hydrophobic polymer host blended with anhydride functionalized hydrophobic polymer co-host and hydrophilic guest

Inventors: Susan P. James (Bellvue, CO); Min Zhang (Seattle, WA); Guy Beauregard (Irvine, CA); Rachael Kurkowski Oldinski (Seattle, WA)
Assignee: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
C08J3/246A61L31/048C08B37/00C08B37/0072C08J9/42C08L5/08C08J2323/06C08J2405/08Y10T428/249953
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Quick Facts
Patent No.
US 10,435,523
App. No.
15/388,355
Granted
Oct 8, 2019
Kind
B2
Abstract

The present disclosure provides, inter alia, a method of producing an outer layer material for forming into a structure and that comprises an entanglement having a hydrophobic polymer host and a hydrophilic guest, including in one embodiment the steps of: intermingling cloaked hydrophilic guest complexes with the hydrophobic host; crosslinking molecules of the guest with the guest; and performing a hydrolysis reaction.

Claims (21)

1. A material comprising:

(i) an outer layer comprising an entanglement; and

(ii) a hydrophilic outer surface of said outer layer,

wherein said entanglement comprises a physical blend of a hydrophobic polymer host and an anhydride functionalized hydrophobic polymer co-host, and a hydrophilic guest;

wherein said hydrophobic polymer host comprises a polyolefin;

wherein said anhydride functionalized hydrophobic polymer co-host comprises a polyolefin which has been functionalized with anhydride functional groups; and

wherein said hydrophilic guest comprises a salt of a glycosaminoglycan;

said entanglement having been synthesized by: (a) intermingling cloaked hydrophilic guest complexes with said physical blend of said host and said co-host; (b) crosslinking molecules of said guest with said guest; and (c) performing a hydrolysis reaction.

2. The material according to claim 1 , wherein: said co-host is selected from the group consisting of: maleic anhydride-graft-polyethylene, maleic anhydride-graft-polypropylene; and maleic anhydride-graft-polystyrene.

3. The material according to claim 1 , wherein said cloaked hydrophilic guest complexes are selected from the group consisting of silylated guest complexes and acylated guest complexes.

4. The material according to claim 3 , wherein said cloaked hydrophilic guest complexes are silylated guest complexes.

5. The material according to claim 1 , wherein said entanglement is surface treated with glycosaminoglycan.

6. The material according to claim 3 , wherein: said co-host is selected from the group consisting of: maleic anhydride-graft-polyethylene, maleic anhydride-graft-polypropylene; and maleic anhydride-graft-polystyrene.

7. The material according to claim 4 , wherein said entanglement is surface treated with glycosaminoglycan.

8. The material according to claim 2 , wherein: said functionalized polyolefin comprises a polyolefin backbone to which the anhydride functional groups have been grafted; and said entanglement, after performing said hydrolysis reaction, having also been: (a) doped with a host-material crosslinking agent and an antioxidant; (b) surface treated using glycosaminoglycan; and (c) crosslinked, using poly(diisocyanate), to crosslink at least a portion of said guest compound with itself.

9. The material according to claim 8 , molded while at least a portion of said host and said co-host are being crosslinked using said host-material crosslinking agent.

10. The material according to claim 9 , wherein said host-material crosslinking agent is selected from the group consisting of silanes and peroxides.

11. The material according to claim 1 , wherein said hydrophilic outer surface of said outer layer is selected from the group consisting of: a bearing surface adapted for mechanical wear; a flexible barrier surface separating a first and second area; a transparent member surface; an in vivo implant surface; a drag reduction surface; a reaction resin surface; a topical dressing surface; and a dental splint surface.

12. The material according to claim 1 , wherein said polyolefin which has been functionalized with anhydride functional groups comprises a polyolefin backbone into which the anhydride functional groups have been incorporated.

13. The material according to claim 12 , wherein said hydrophilic outer surface of said outer layer is selected from the group consisting of: a bearing surface adapted for mechanical wear; a flexible barrier surface separating a first and second area; a transparent member surface; an in vivo implant surface; a drag reduction surface; a reaction resin surface; a topical dressing surface; and a dental splint surface.

14. A medical device comprising the material according to claim 1 .

Assignments (2)
CONFIRMATORY LICENSE Recorded Feb 28, 2019
From: COLORADO STATE UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 048478/0857 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2016
From: JAMES, SUSAN P; ZHANG, MIN; BEAUREGARD, GUY; OLDINSKI, RACHAEL KURKOWSKI
To: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION
Reel/Frame 040772/0823 →
Continuity (6)
Continuation 14013360 · Aug 29, 2013
Division 12148598 · Apr 21, 2008
Continuation In Part 10283760 · Oct 29, 2002
Provisional Application 60925452 · Apr 19, 2007
Provisional Application 60340777 · Oct 30, 2001
Related Publication 20170101516A1 · Apr 13, 2017