A sterile cover for a tubular port of a flexible plastic fluid container consists of a sheath of flexible film material disposed over the tubular port and peelably sealed to the port. The port is exposed for use by peeling the sheath off the port and the sheath is thereafter discarded.
Solutions of intermediate molecular weight polymers from about 200,000 to about 4,000,000, such as polyethylene, in a relatively non-volatile solvent are extruded through an aperature at constant concentration and thereafter stretched at a ratio of at least about 3:1 prior to cooling to form a first ...
Tubing suitable for cryogenic use is disclosed. The tubing, which is composed of a copolymer of ethylene with either vinyl acetate or ethyl acrylate, has dimensions such that the ratio of the outside diameter to the inside diameter of the tubing is at least about 1.5.
A process for spinning high molecular weight poly (alph-olefin) filament, particularly ultrahigh molecular weight polyethylene filament, from solution in a volatile spinning solvent with recovery and recycling of the solvent.