High-permeability composite prepreg constructions and methods for making the same

US11213975B2 · kind B2 · utility

Assignee

• University of Southern California · US

Inventors

• Steven Nutt · Irvine, US
• Lessa Grunenfelder · Los Angeles, US
• Timotei Centea · Los Angeles, US
• Mark Anders · Providence, US
• William T. Edwards · Austin, US
• Sarah Grace Katz Schechter · Los Angeles, US

Key dates

• Filing date: Jan 5, 2018
• Grant date: Jan 4, 2022
• Expiry date: Jan 5, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2379/08
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Methods, apparatuses, and systems for making prepregs are disclosed. A method may include depositing a resin material onto a surface of a fiber bed and forming a number of discrete resin regions thereon. A distance between the resin regions may be measured to provide desired exposed portions of the surface to facilitate permeation of air through the exposed portions of the surface in a direction perpendicular to a plane of the fiber bed during a curing process of the prepreg.