초록 ▼

A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates,

A process for producing a dilatation balloon by extruding a multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment. The balloon formed by the process demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.

대표청구항 ▼

We claim: 1. A process for producing a dilatation balloon, the process comprising:providing a multiblock copolymer composition comprising a multiblock copolymer, wherein the multiblock copolymer comprises glassy phase end blocks, and blocks adjacent to the end blocks comprising rubber and semi-cryst

We claim: 1. A process for producing a dilatation balloon, the process comprising:providing a multiblock copolymer composition comprising a multiblock copolymer, wherein the multiblock copolymer comprises glassy phase end blocks, and blocks adjacent to the end blocks comprising rubber and semi-crystalline phases; andforming a dilation balloon comprising extruding the multiblock copolymer composition to form an extrudate comprising phase-separated glassy, rubber, and semicrystalline microdomains that are macroscopically ordered in a perpendicular alignment;wherein the dilatation balloon demonstrates, during inflation, a true stress vs. nominal strain response curve comprising a first zone representative of a low modulus balloon, a second zone representative of a high strength balloon, and a sharp transition from the first zone to the second zone.