Patent ID: 8025949

Claim:
A honeycomb having cells separated by cell walls, the cells being expanded wet-laid paper sheets bonded to each other along a number of nodes lines of adhesive, the cell walls comprising paper having an average specific tensile index of 60 (lbs/in)/opsy (310 Nm/g) or greater; the paper comprising 3 to 30 parts by weight thermoplastic aliphatic polyamide binder having a melting point of from 120° C. to 350° C. and 70 to 97 parts by weight poly(paraphenylene terephthalamide) fiber, in the form of a floc or pulp or a mixture thereof, having a modulus of 600 grams per denier (550 grams per dtex) or greater, based on the total amount of aliphatic polyamide binder and PPD-T fiber in the paper; the aliphatic polyamide binder being present in the paper in the form of discrete film-like particles; the honeycomb further comprising a matrix resin that is a thermoset resin that fully impregnates, saturates, and/or coats the cell walls and fills voids in the paper.