Patent ID: 9580845
Date: 2017-02-28
CPC Classifications: B32B,D01D,D01F,D04H,Y10T

Claim:
1. A nonwoven substrate comprising: a layer of fibers, wherein the fibers comprise a polyolefin and an engineering thermoplastic polymer, wherein the engineering thermoplastic polymer is present in the range of from about 1% to about 20% by weight of the nonwoven substrate, and wherein the layer of fibers is free of a compatibilizer; and wherein the engineering thermoplastic polymer comprises a component selected from the group consisted of polylactic acid (PLA), Polyimides, acrylates, methacrylates, styrenics, Polycarbonates (PC), Polytetrafluoroethylene (PTFE/Teflon), Acrylonitrile butadiene styrene (ABS), Polyphenylene oxide (PPO), Polysulphone (PSU), Polyetherketone (PEK), Polyetheretherketone (PEEK), Polyphenylene sulfide (PPS), Polyoxymethylene plastic (POM/Acetal), polyvinyl chloride, and mixtures thereof; and the nonwoven substrate having a basis weight of less than about 50 gsm.