Patent ID: 9580562
Date: 2017-02-28
CPC Classifications: C08J,C08L,C09J,Y10T

Claim:
1. A method of irradiating an article with an electron beam, said method comprising: providing an electron beam source; providing an article comprising a layer of a material comprising a blend of wherein monomers B and monomers D have at least one reactive group that is capable of hydrogen bonding; the second acrylic copolymer comprises greater than about 10 total parts by weight of the monomers D based a total weight of the second acrylic copolymer; and the total parts by weight of the monomers D in the second acrylic copolymer is greater than the total parts by weight of the monomers B in the first acrylic copolymer; preparing dose-depth profile calibration curves for the electron beam source, wherein at least one of the dose-depth calibration curves exhibits a concave downward dose-depth profile; selecting a concave downward dose-depth profile of irradiation; and irradiating the article comprising the layer material at a voltage and dose according to the selected concave downward dose-depth profile of irradiation, resulting in an irradiated article; wherein irradiating according to the selected concave downward dose-depth profile of irradiation exhibits a minimum of irradiation within a middle 80% of a thickness of the article.