Dissolvable Nano Web Porous Film and Method of Preparing the Same
First Claim
1. A dissolvable nano web porous film, wherein the nano web porous film has a network structure formed by stacking nano fibers, the nano fibers having a thickness of 10-50,000 nm and formed of a composition comprising a nano fiber forming polymer, a gelling agent, and a plasticizer.
2 Assignments
0 Petitions
Accused Products
Abstract
A dissolvable nano web porous film has a network structure and a large specific surface area. The network structure is formed by stacking nano fibers that have a thickness of 10˜50,000 nm. The nano fibers are formed of a composition comprising nano fiber forming polymer, a gelling agent, a plasticizer, an optional active component and an optional additive. A method of preparing a dissolvable nano web film comprises producing a polymer melt or solution formed of a composition that comprises a nano fiber forming polymer, a gelling agent, a plasticizer, an optional active component and additives, spinning the melt or solution to form a nano web porous film having nano webs stacked in a network structure, drying the nano web porous film, and stabilizing the nano web porous film. The porous film has a 5˜5000 times higher specific surface area and a 2˜20 times faster dissolving time than a conventional film. The dissolvable nano web porous film has excellent dissolvability and solubility.
123 Citations
16 Claims
- 1. A dissolvable nano web porous film, wherein the nano web porous film has a network structure formed by stacking nano fibers, the nano fibers having a thickness of 10-50,000 nm and formed of a composition comprising a nano fiber forming polymer, a gelling agent, and a plasticizer.
-
14. A method of preparing a dissolvable nano web porous film, comprising:
-
producing a polymer melt or a polymer solution of a composition comprising a nano fiber forming polymer, a gelling agent and a plasticizer, as essential components and an active component, and additives, as optional components;
spinning the polymer melt or solution to form a nano web porous film having nano webs stacked in a network structure;drying the nano web porous film; and stabilizing the nano web porous film. - View Dependent Claims (15, 16)
-
Specification