Use of boron to reduce the thermal conductivity of unbonded loosefill insulation

摘要

A method for manufacturing unbonded loosefill insulation material configured for distribution in a blowing insulation machine is provided. The method includes the steps of establishing apparatus configured for making fibrous materials, the apparatus including structures configured to provide molten materials to fiberizing apparatus and collection apparatus configured to collect the formed fibrous materials, determining whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products, and formulating a composition of the molten material in response to the determination of whether the formed fibrous material will be further processed as loosefill insulation material or other fibrous products.

主权项

1. An unbonded loosefill insulation material formed from a glass batch, the glass batch comprising, in weight percent:SiO262.0-69.0-%Al2O30.0-4.0%CaO7.0-12.0%MgO0.0-5.0%B2O3from greater than 7.0 to less than 8.0%Na2O13.0-18.0%K2O0.0-3.0% wherein the unbonded loosefill insulation material is configured for distribution in a blowing insulation machine; and wherein the unbonded loosefill insulation material includes a plurality of individual tufts.