Plexifilamentary
Webb1. A process for the preparation of plexifilamentary film-fibril strands of polymer which comprises the steps of: (i) generating a spin fluid comprising (a) 5 to 30 wt. % of total spin fluid being a polymer of one or more polymer types, (b) a primary spin agent selected from the group consisting of dichloromethane, cis-1,2-dichloroethylene and trans-1,2 … Webb19 aug. 1997 · A sheet material suitable for use in sterile packagingcharacterized bya sheet of flash-spun plexifilamentary fibrils, said sheet material having a Gurley Hill porosity, measured according to TAPPI T-460 OM-88, of less than 15 seconds and a spore log reduction value, measured according to ASTM F 1608-95, of at least 2.5.The sheet …
Plexifilamentary
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WebbTraductions en contexte de "Pellicule électrostatique" en français-anglais avec Reverso Context : Brewster Brewster - Pellicule électrostatique de qualité supérieure pour porte, motif cornouiller WebbPlexifilamentary strands of polyesters US Patent: 6,692,826. A process for producing plexifilamentary or foam products by flash spinning in selected spin agents a polymer from the group ...
WebbA sheet having a plexifilamentary structure with a normalized Frazier air permeability of between 0.002 and 0.2 (m 3 /m 2 ·minute)@50 gsm, and a normalized hydrohead of … WebbLightweight nonwoven sheets of polyethylene plexifilamentary film-fibril strands are made by a stretching-and-bonding operation in which the unit weight of the sheet is decreased …
WebbThomas Schweiger Principal Software Engineer at eBay Bellevue, Washington, United States. 392 followers 390 connections WebbAn improved process for flash-spinning plexifilamentary film-fibril strands is provided. A 5 to 30 and preferably 10 to 20 percent solution of polymer, preferably linear polyethylene, is formed in a spin fluid that consists essentially of 50 to 90 weight percent methylene chloride and 10 to 50 percent of a halocarbon, which preferably is …
WebbPlexifilamentary structures prepared by flash-spinning solutions of non-crystalline synthetic organic polymers. The structures show no long-period diffraction when …
WebbThe invention relates to a process for flash-spinning plexifilamentary film-fibril strands of polyolefins. More particularly, the strands are flash-spun from mixtures of carbon dioxide, water and the polyolefin. The invention also relates to the film-fibril strands produced by the inventive process. earl of spencerWebb30 juni 1998 · We claim: 1. A plexifilamentary strand material comprising a three dimensional integral plexus of fibrous elements substantially aligned with the strand axis, said fibrous elements each comprised of first, second and third synthetic, organic polymers, each of said polymers comprising between 1% and 98% by weight of said … css linear gradient mdnWebb8 juni 2000 · Corona charging of flash spun plexifilamentary film-fibril webs in poor charging environments Patent number: 5643524 Abstract: This invention relates to flash spinning a plexifilamentary film-fibril strand and laying it down into sheet material including the step of subjecting the strand to an electrostatic charge. css limit textWebbThe flash-spun plexifilamentary fiber strand according to 1 above, which has a BET surface area of 12 m 2 /g or less and a crush value of 0.9 mm/g or more. 3. The flash … css linear-gradient borderWebb15 maj 2015 · Flash-spinning is a novel method for preparing plexifilamentary film-fibril strands from fiber-forming polymers [7]. In this process, the polymer was dissolved in a solvent, which was a non-solvent for the polymer at or below its normal boiling point, at a temperature above the normal boiling point of the solvent. css linear gradient builderWebb8 mars 1996 · A process for producing plexifilamentary products by spinning from a solution of a primary solvent selected from the group consisting of methylene chloride … earl of stamford morrisearl of snowdon net worth