Patent ID: 9603312
Date: 2017-03-28
CPC Classifications: A01G,A01M,C08G,C08L,D04H

Claim:
1. A solid, porous barrier: wherein the solid barrier is formed by spraying an aqueous solution of nonwoven fiber macroscopic particles and polymer binder; wherein the weight percent of the macroscopic particles in the aqueous solution is about 10% weight of particles per weight of solution to about 90% weight of particles per weight of solution; wherein, the solid barrier contains pores ranging in size between about 0.01 mm and about 1 mm; wherein the pores of the solid barrier are formed after contacting the aqueous solution with a surface and allowing the aqueous solution to solidify by curing under ambient conditions; wherein the macroscopic particles in the solid barrier form a random orientation of fibers; wherein the macroscopic particles have an average length of between about 100 microns and about 1000 microns; wherein the barrier contains no visibly apparent voids or holes; and wherein the formed barrier is sufficiently porous to allow air to permeate and sufficiently solid to be a physical barrier to non-gaseous materials.