RESISTANT mishandling withstands autoclaving packaging film having oxygen-barrier layer comprising a mixture of amorphous polyamide and semicrystalline POLYAMIDE

摘要

1. withstand sterilization in an autoclave multilayer packaging film comprising: (A) a crosslinked first outer layer serving as an insulating layer and a layer in contact with the product and! (B) a crosslinked O2-impermeable layer comprising a mixture of: (I) from 50 to 95 wt.%, Based on the weight of the mixture of amorphous polyamide having a glass transition temperature from about 80 ° C to about 200 ° C, and! (Ii) a semicrystalline polyamide comprising at least one member selected from the group consisting of! (A) from 5 to 50% by weight of the mixture, and PA-MXD, 6 / MXD, I, and! (B) from 5 to 15% by weight of the polyamide mixture with or without crystallization nuclei having a reduced viscosity measured in accordance with test method ISO 307, of from 150 to 185 ml / g. ! 2. withstand retortable multilayer film according to claim 1, wherein the O2-barrier layer has a thickness from about 7 to about 25 microns, and after autoclaving for 90 minutes at 250 ° F the film has a transmission rate of O2 at 100% RH on both sides of the film from about 5 to about 25 cm3 / m2 / day. ! 3. withstand retortable multilayer film according to claim 1, wherein the O2-barrier layer has a thickness from about 7 to about 25 microns, and after autoclaving for 90 minutes at 250 ° F has a transmission rate of O2 at 100% relative humidity on both sides of the film from about 10 to about 20 cm3 / m2 / day. ! 4. withstand retortable multilayer packaging film according to claim 1, wherein the O2-barrier layer comprises a mixture of from 50 to 95 wt.%, Based on the weight of the mixture of PA-6, I / 6T and at least one member selected from the group consisting of: (A) from 5 to 50% by weight of the mixture of PA-MXD and! (B) from 5 to 15% by weight of the mixture of PA-MXD, 6 / MXD, I. ! 5. you