Abstract: A multi-layered biaxially oriented film comprising at least one primary layer and at least one secondary layer, wherein the primary layer comprises a propylene copolymer having a first melting point and the secondary layer comprises a polypropylene homopolymer or copolymer having a second melting point, such that the second melting point is greater than the first melting point and the multi-layered construction is biaxially stretched. The multi-layered film further includes a surface finishing layer, to provide a writable multi-layered film. This stretched film exhibits a refractive index in the machine direction (MD) that is greater than the refractive index measured in the transverse direction (TD).

Abstract: A multi-layered biaxially oriented film comprising at least one primary layer and at least one secondary layer, wherein the primary layer comprises a propylene copolymer having a first melting point and the secondary layer comprises a polypropylene homopolymer or copolymer having a second melting point, such that the second melting point is greater than the first melting point and the multi-layered construction is biaxially stretched. The multi-layered film further includes a surface finishing layer, to provide a writable multi-layered film. This stretched film exhibits a refractive index in the machine direction (MD) that is greater than the refractive index measured in the transverse direction (TD).

Abstract: Process of producing skin-core fibers and the resulting fibers and nonwoven materials and articles wherein the fibers are composed of a polymer blend of a polyolefin and polymeric bond curve enhancing agents, such as ethylene vinyl acetate polymers.

Abstract: Adhesive tape backings comprising isotactic polypropylene blended or mixed with at least a second polyolefin. The backing is biaxially stretched so as to provide a film having any one or a combination of the following preferred characteristics: A. Puncture energy up to 20 J/cm2 when 2.54 cm wide samples are tested by the method set herein, or up to 90 J/cm2 when 1.27 cm wide samples are tested by the method set out herein. B. Puncture elongation up to about 1.3 cm when 2.54 cm wide samples are tested by the method set out herein, or up to 2.0 cm when 1.27 cm wide samples are tested by the method set out herein. C. Tensile strength up to 140 MPa in the MD. In a preferred embodiment, the second component comprises polyethylene, polybutylene, or syndiotactic polypropylene.

Abstract: A yarn comprising linear low density polyethylene fiber and nonmelting fiber or fiber having a melting point higher than the linear low density polyethylene fiber, and structures made therefrom.

Abstract: Process of producing skin-core fibers and the resulting fibers and nonwoven materials and articles wherein the fibers are composed of a polymer blend of a polyolefin and polymeric bond curve enhancing agents, such as ethylene vinyl acetate polymers.

Abstract: A laminate comprising (1) at least one layer of a textile structure comprising linear low density polyethylene fiber and (2) at least one layer of a textile structure comprising nomnelting fiber or fiber having a melting point higher than the linear low density polyethylene fiber, needlepunched and thermally consolidated together.

Abstract: A fabric comprising a warp yarn and a filling yarn, wherein the filling yarn comprises linear low density polyethylene fiber and the warp yarn comprises nonmelting fiber or fiber having a melting point higher than the linear low density polyethylene fiber.

Abstract: A gamma-sterilizable barrier fabric comprises (1) at least one layer of a gamma-sterilizable nonwoven material comprising cardable multiconstituent staple fibers, at least 50% by weight of the nonwoven material comprising a gamma-sterilizable polymer, and (2) at least one layer of gamma-sterilizable barrier material selected from film, wet-laid fabrics, and melt-blown webs, at least 50% by weight of the barrier material comprising a gamma-sterilizable polymer.

Abstract: Multiconstituent fibers having a dominant continuous linear low density polyethylene phase, and one or more discontinuous phase polymers, dispersed through the dominant continuous phase in the form of domains. The indicated discontinuous phases polymers are chosen from among polypropylene and poly(propylene-co-ethylene) copolymers.

Abstract: High strength spun melt fiber, preparation thereof utilizing threadline oxidative chain scission degradation of hot fiber spun from polymer component(s) having a broad molecular weight distribution in conjunction with a delayed quench step, and corresponding nonwoven material obtained therefrom.

Abstract: Radial differential melt flow rate melt spun fiber, preparation thereof utilizing threadline oxidative chain scission degradation of hot fiber extruded from polyolefin polymer component(s) having a broad molecular weight distribution in conjunction with a delayed or slow quench step, and corresponding high strength nonwoven material obtained therefrom.

Abstract: High strength spun melt fiber is prepared by utilizing threadline oxidative chain scission degradation of hot fiber spun from polymer component(s) having a broad molecular weight distribution in conjunction with a delayed quench step.