POROUS NANOSHEATH NETWORKS, METHOD OF MAKING AND USES THEREOF
First Claim
1. A method for making a porous material, said method comprising the steps of:
- (a) melt-blending two or more non-miscible polymers to obtain a co-continuous melt;
(b) solidifying the melt of step (a) to obtain a solid mass;
(c) selectively extracting at least one of the polymers from said solid mass, thereby creating an essentially continuous pore network within said solid mass, said pore network having an internal surface;
(d) replicating the internal surface of the pore network within said solid mass by coating said internal surface with successive material layers; and
(e) selectively extracting said solid mass without extracting said layers, thereby producing a porous material.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for making a porous material, includes melt-blending two or more non-miscible polymers to obtain a co-continuous melt, solidifying the melt to obtain a solid mass consisting of two co-continuous polymer phases, and selectively extracting one of the co-continuous phases thereby creating within the solid mass an essentially continuous pore network having an internal surface. The method further includes replicating the internal surface of the pore network within the solid mass by coating the internal surface with successive layers of materials, and selectively extracting the solid mass without extracting the layers of materials, to thereby yield the product porous material, formed of the layers of materials. The material has a void fraction higher than about 75%, and mainly having essentially fully interconnected sheath-like non-spherical pores and essentially non-fibrous walls.
-
Citations
37 Claims
-
1. A method for making a porous material, said method comprising the steps of:
-
(a) melt-blending two or more non-miscible polymers to obtain a co-continuous melt; (b) solidifying the melt of step (a) to obtain a solid mass; (c) selectively extracting at least one of the polymers from said solid mass, thereby creating an essentially continuous pore network within said solid mass, said pore network having an internal surface; (d) replicating the internal surface of the pore network within said solid mass by coating said internal surface with successive material layers; and (e) selectively extracting said solid mass without extracting said layers, thereby producing a porous material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 26, 28, 30, 32, 34, 36)
-
- 20. A porous material having a void fraction higher than about 75% and mainly consisting of comprising essentially fully interconnected sheath-like non-spherical pores and essentially non-fibrous walls.
Specification