Patent ID: 9221965
Filing Date: 2015-12-29
Classification: B29C,C03C,C08L,D01G,D04H,Y02P

Abstract:
1. A method for manufacturing a mineral fibre-containing element, said method comprising the steps of: providing mineral fibres in an amount of from 70 to less than 89 wt % of the total weight of starting materials in the form of a collected web, providing a thermally curable binder in an amount of greater than 11 up to 30 wt % of the total weight of starting materials, subjecting the collected web of fibres to a disentanglement process, suspending the fibres in a primary air flow, mixing the thermally curable binder with the mineral fibres before, during or after the disentanglement process to form a mixture of mineral fibres and thermally curable binder, collecting the mixture of mineral fibres and thermally curable binder and pressing and curing the mixture to provide a consolidated composite with a density of from 120 kg/m wherein the mineral fibres and thermally curable binder, when suspended in the primary air flow, are subjected to a further air flow in a different direction to the primary air flow, and wherein the primary air flow is generally lateral and the further air flow is generally upwards, and wherein the mineral fibres and thermally curable binder together make up at least 96% of the total weight of starting materials.