Patent ID: 9371423
Filing Date: 2016-06-21
CPC Classification: B01J,B29C,C04B,C08G,C08J,D01D,D01F,D06M

Claim Text:
1. A method of crosslinking a silicon carbide fiber precursor polymer, comprising: exposing a first portion of silicon carbide fiber precursor polymer provided on a platform to e-beam radiation, wherein the silicon carbide fiber precursor polymer is provided on the platform by winding the silicon carbide fiber precursor polymer on the platform, wherein winding the silicon carbide fiber precursor polymer on the platform comprises winding the silicon fiber precursor polymer to form a pile of multiple layers in the direction of the e-beam radiation intersecting the silicon carbide fiber precursor polymer; translating at least one of the platform and the e-beam radiation with respect to the other and exposing a second portion of the silicon carbide fiber precursor polymer to e-beam radiation; and regulating the temperature of the platform to prevent the temperature of the first and second portions of the silicon carbide fiber precursor polymer from reaching their softening point due to the e-beam radiation, wherein the silicon carbide fiber precursor polymer is polycarbosilane, polysilazane, or polydisilazane.