Flame-resistant, low-temperature curing cyanate-based prepreg resins for honeycomb sandwich components with excellent surfaces

摘要

A textile web material impregnated with a mixture that contains at least a prepolymer prepolymerized from a starting material of one or more bifunctional or polyfunctional organic cyanates and from a starting material of one or more bifunctional or polyfunctional aromatic alcohols, wherein the one or more bifunctional or polyfunctional organic cyanates and the one or more bifunctional or polyfunctional aromatic alcohols are present in weight ratios ensuring a molar ratio of the OCN groups to the OH groups between 95:5 and 70:30 prior to prepolymerization. The mixture further contains one or more fillers.