Method to apply multiple coatings to a fiber web

摘要

A method for applying multiple polymeric coatings onto a fibrous substrate. More particularly, a method for applying multiple polymeric coatings onto fibrous substrates without regard to chemical or physical incompatibilities of the polymeric coating materials. A first polymeric material is applied onto at least one fibrous substrate, and a second polymeric material is applied onto a support. The fibrous substrate and support are joined, contacting the first polymeric material with the second polymeric material, followed by separating the support from the fibrous substrate, such that at least a portion of the second polymeric material remains on the first polymeric material on the fibrous substrate.

主权项

1. A ballistic resistant fibrous composite produced by a process comprising:
a) providing a fibrous substrate, the fibrous substrate comprising a woven fabric formed from a plurality of fibers and having a first liquid polymeric material on a surface thereof; the first liquid polymeric material consisting of at least one non-fluorine-containing polymer and forming a first polymer layer, and wherein the non-fluorine containing polymer encapsulates each of the fibers of the fibrous substrate; b) providing a support, the support having a second liquid polymeric material on a surface thereof; the second liquid polymeric material forming a second polymer layer wherein the second polymeric material is a fluorine-containing polymer; wherein the second polymer layer consists essentially of the fluorine-containing polymer; c) thereafter, joining the fibrous substrate and the support by contacting the first liquid polymeric material with the second liquid polymeric material such that the first liquid polymeric material and second liquid polymeric material are contacted with each other while each polymeric material is wet; and then d) separating the support from the fibrous substrate, such that at least a portion of the second polymeric material remains on the first polymeric material on the fibrous substrate; wherein the first polymer layer and the second polymer layer are unified wherein polymer molecules from the first polymer layer are commingled with polymer molecules from the second polymer layer, wherein the layers are at least partially fused together.