US 2025/0129223 A1 · PRE-IMPREGNATED NONWOVEN MATS HAVING IMPROVED FIRE PERFORMANCE

Abstract

Pre-impregnated nonwoven mats having improved fire performance are provided. The pre-impregnated nonwoven mats contain a nonwoven base layer and an impregnation composition, wherein the impregnation composition comprises a thermoset resin material. The selection of both a particular basis weight and a particular caliper index for the nonwoven base layer enables an improved absorption and cure of the impregnation composition during the manufacturing process, which provides a desired fire performance for the pre-impregnated non-woven mat without the need for further fire-retardant coatings.

Claims27

Dependent claims

A pre-impregnated nonwoven mat comprising:

a nonwoven base layer comprising a plurality of randomly dispersed, individually chopped glass fibers;
and
an impregnation composition comprising a thermoset resin material,
wherein the nonwoven base layer has a basis weight of at least 130 g/m2 and a caliper index of 20 to 40, and wherein the nonwoven base layer achieves a resin uptake of at least 200%, based upon a total weight of the nonwoven base layer.

1 more element

Dependencies are inferred from the claim text.

Pre-impregnated nonwoven mats having improved fire performance

Life of this patent

Pre-impregnated nonwoven mats having improved fire performance

Life of this patent

Abstract

Claims27