Patent ID: 8026190

Claim:
An insulating element in the form of a plate or roll felt, adapted for the insulation of a vessel's bulkhead, comprising mineral fibers, made of bonded fibers soluble in a physiological agent, wherein the insulating element may be utilized as fire and/or thermal and/or sound protection in a vessel, wherein the composition of the mineral fibers of the insulating element amounts to an alkali/alkaline-earth mass ratio of <1, wherein the insulating element is comprised of a bead portion in the mineral fibers in an amount <1% of the insulating element as well as by an average geometrical fiber diameter of ≦4 μm, a surface weight of 0.8 through 4.3 kg/m 2 , and wherein a portion of a bonding agent of the insulating element in relation to the mineral fibers is in the range of 0.5 through 4% by weight; wherein the weight per unit area of the insulating element with a Fire Resistance Category A15 or similar is in the range of about from 0.8 to 1.4 kg/m 2 , with a Fire Resistance Category A30 or similar, from 2.3 to 3.0 kg/m 2 , and with a Fire Resistance Category A60 or similar, from 3.2 to 4.3 kg/m 23 ; and wherein the insulating element, having a gross density of up to 75 kg/m 3 , is compressible in a minimum ratio of 2:1.