IP Library Granted Patent US 7,452,920
Granted Patent B2
US 7,452,920 · App. 11/082,468 · Granted Nov 18, 2008

Electronically and ionically conductive porous material and method for manufacture of resin wafers therefrom

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Quick Facts
Patent No.
US 7,452,920
App. No.
11/082,468
Granted
Nov 18, 2008
Kind
B2
Abstract

An electrically and ionically conductive porous material including a thermoplastic binder and one or more of anion exchange moieties or cation exchange moieties or mixtures thereof and/or one or more of a protein capture resin and an electrically conductive material. The thermoplastic binder immobilizes the moieties with respect to each other but does not substantially coat the moieties and forms the electrically conductive porous material. A wafer of the material and a method of making the material and wafer are disclosed.

Claims (18)

1. An electrically and ionically conductive porous material, comprising a thermoplastic binder and one or more of anion exchange moieties or cation exchange moieties or mixtures thereof and/or one or more of a protein capture resin and an electrically conductive material,

wherein said thermoplastic binder immobilizes the moieties with respect to each other but does not substantially coat the moieties and forms the electrically conductive porous material.

2. The electrically and ionically conductive porous material of claim 1 , wherein anion and/or cation exchange moieties are present in the range of from about 30% to about 75% by weight of the material and wherein said thermoplastic binder is present in the range of from about 25% to about 70% by weight of the material.

3. The electrically and ionically conductive porous material of claim 1 , wherein a protein capture resin is present.

4. The electrically and ionically conductive porous material of claim 1 , wherein said binder includes polyethylene.

5. The electrically and ionically conductive porous material of claim 1 , wherein said electrically conductive material is one or more of carbon black or glassy carbon particles or glassy carbon nanoparticles and is present in the range of from about 1 to about 15% by weight of the electrically conductive flexible and porous material.

6. The electrically and ionically conductive porous material of claim 2 , wherein said material has a porosity in the range of from about 15% to about 60%.

7. The electrically and ionically conductive porous material of claim 3 , wherein protein capture resins are present and are Ni-charged polymers.

8. The electrically conductive porous material of claim 5 , wherein said electrically conductive material is in the form of particles having an average diameter of less than about 100 nanometers.

9. A thin wafer of electrically and ionically conductive porous material, comprising

a mixture of a thermoplastic binder and one or more of anion exchange moieties or cation exchange moieties or mixtures thereof and/or one or more of a protein capture resin and an electrically conductive material into a mold,

wherein said anion and/or cation exchange moieties are present in the range of from about 30% to about 75% by weight of the material and wherein said thermoplastic binder is present in the range of from about 25% to about 70% by weight of the material and said electrically conductive material is one or more of carbon black or glassy carbon particles or glassy carbon nanoparticles and is present in the range of from about 1 to about 15% by weight of the electrically and ionically conductive flexible and porous material.

10. The thin wafer of claim 9 , wherein said thermoplastic binder has a melting point in the range of from about 60° C. to about 240° C.

11. The thin wafer of claim 10 , wherein said thermoplastic polymer is or includes polyethylene and said material has a porosity in the range of from about 15% to about 60%.

12. The thin wafer of claim 11 , wherein protein capture resins are present and are Ni-charged resins.

13. The thin wafer of claim 9 , wherein the wafer thickness is in the range of from about 1 mm to about 12 mm.

14. The thin wafer of claim 9 , wherein said wafer is flexible when wet and relatively rigid when dry.

15. The electrically conductive porous wafer of claim 9 , wherein said electrically conductive material is in the form of particles having an average diameter of less than about 100 nanometers.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2006
From: UNIVERSITY OF CHICAGO, THE
To: U CHICAGO ARGONNE LLC
Reel/Frame 018385/0618 →
CONFIRMATORY LICENSE Recorded Aug 4, 2005
From: UNIVERSITY OF CHICAGO, THE
To: ENERGY, UNITED STATES DEPARTMENT OF
Reel/Frame 016867/0385 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2005
From: LIN, YUPO J.; HENRY, MICHAEL P.; SNYDER, SETH W.
To: CHICAGO, UNIVERSITY OF, THE
Reel/Frame 016401/0108 →