Abstract: Multi-layer puncture-resistant biaxially oriented coextruded films or tubings are disclosed for use in dilatation balloon catheters. The catheter balloons so formed comprise a first, inner layer of an orientable thermoplastic resin; a second layer of a thermoplastic inomeric olefin copolymer secured to the outside surface of the first layer; and an optional third layer of an orientable thermoplastic resin secured to the outside surface of the second layer. Processes for forming the dilatation catheter balloons herein are also disclosed.

Abstract: Multi-layer puncture-resistant biaxially oriented coextruded films or tubings are disclosed for use in dilatation balloon catheters. The catheter balloons so formed comprise a first, inner layer of an orientable thermoplastic resin; a second layer of a thermoplastic inomeric olefin copolymer secured to the outside surface of the first layer; and an optional third layer of an orientable thermoplastic resin secured to the outside surface of the second layer. Processes for forming the dilatation catheter balloons herein are also disclosed.

Abstract: See-through, packaging structures for liquid or semi-liquid fruit or vegetable products, which have a polyamide food contact-layer of at least 0.4 mil. thickness, extends the color-life of the contained food product. The polyamide layer removes certain degradation products of polyphenolic compounds which otherwise would cause browning during storage. The packaging structures allow the contents and their color to be clearly seen by using a transparent film or sheet structural material having a polyamide surface-layer, the structural material being formed into a packaging structure. The packaging structure may be one such as a film pouch or a plastic bottle, the surface layer of the film or sheet forming the inner-surface food contact-layer of the packaging structure. Alternatively, a polyamide inner contact-layer in the lidding of a see-through package structure can be used, in which case the see-through package container portion itself need not have a polyamide inner contact-layer.

Abstract: Process for making an oriented polyester article with improved hydrolytic stability involves blending a polyester resin with (a) polyalkylene glycol which may be alkoxy end capped and (b) optionally a further compound of glycidyl ether carbodiimide, keteneimines, aziridines or isocyanate, heating to form a melt and forming the melt into an oriented article.

Abstract: A packaging material, which is capable of absorbing trace amounts of volatile odorous sulfur compounds particularly from food, is made from a structural support material which is preferably a polymer film, and a defined molecular sieve. The packaging material may be in the form of a film which forms at least one layer of a film package, or it may be in the form of a cap liner, or it may be in the form of an insert. Film materials may be oriented film or oriented shrink film. The molecular sieve may be defined either by its measured ability to adsorb hydrogen sulfide, or by certain physical and chemical structural parameters of the molecular sieve. These are pore-opening size, Si/Al atomic ratio, pore-structure dimensionality, and basicity.