Certainteed Corporation

Saint Gobain Isover

Christophe Wagner

Edward F Pentz

Murray S Toas

Kurt O Mankell

Mark Trabbold

Alain Yang

Sébastien Beaufils

Andreas Unruh

Kevin J Gallagher

Daniel Lacaute

Claire Calero

Michael La Salle

Ed Pentz

Ed Nieradko

A method of making thermal insulation includes, forming a thermal insulation product precursor having randomly distributed inorganic fibers and about 5-500 wt. % heat-expandable hollow microspheres in dry or slurry form and having a polymeric shell and having disposed therein a blowing agent or gas, and calcium acetate or cupric carbonate, or a combination of calcium acetate and cupric carbonate, and heating the precursor to expand the microspheres.

Insulation containing heat expandable spherical additives, calcium acetate, cupric carbonate, or a combination thereof

Thermal insulation is provided which includes randomly distributed inorganic fibers and about 5-500 wt. % unexpanded hollow microspheres comprising a polymeric shell having disposed therein a blowing agent or gas, said unexpanded hollow microspheres increasing in size when heated. Also provided is an insulated attic, including a plurality of rafters, an attic floor and a thermal insulation comprising randomly distributed glass fibers in at least about 5 wt. % hollow expanded microspheres having a diameter of 20-140 microns, which have been expanded from about 6-40 microns. The hollow expanded microspheres reduce the thermal conductivity of the thermal insulation by at least about 5%, and have shown improvement up to 19.4% decreased thermal conductivity during tests at loadings from 30% to 257%. Additionally, calcium acetate and cupric carbonate additions to glass fiber insulation products showed improvement by at least about a 1% decrease in thermal conductivity.

The present invention provides thermal insulation products including a thermal insulation batt, board and loose fill, and methods of manufacture thereof, and a method of insulating an attic with loose fill, and an attic having the loose fill. The insulation products include randomly distributed inorganic fibers which are supplemented with microspheres, preferably hollow microspheres.

Insulation containing inorganic fiber and spherical additives

The present invention provides thermal insulation products such as loose fill, bats and boards, such as duct boards and duct liner. The insulation products include randomly distributed inorganic fibers which are supplemented with at least about five weight percent microspheres, macrospheres, or both, preferably include hollow microspheres, which boost the insulation value of the fiberglass thermal insulation by at least about 0.5 R.

The present invention provides thermal insulation products such as loose fill, batts and boards, such as duct boards and duct liner. The insulation products include randomly distributed inorganic fibers, which are supplemented with at least about five weight percent microspheres, macrospheres, or both, and preferably include hollow microspheres, which boost the insulation value of the fiberglass thermal insulation by at least about 0.5R.

A hose assembly comprises: a flexible corrugated inner hose suitable for conveying and dispensing loose-fill insulation material, and a non-conforming outer hose snugly fitted about the inner hose, the outer hose having a substantially cylindrical outer surface that is substantially free of corrugations.

Corrugated hose with non-conforming outer layer for dispensing loose-fill insulation

A method is provided to produce fine diameter glass fibers with fewer defects through a combination of lower attenuating gas velocities and the use of spinners having more and smaller holes. The method uses a device for internal centrifugation of mineral fibers including a centrifuge equipped with a peripheral band perforated with orifices distributed in a plurality of annular zones arranged on top of each other, assuming that the centrifuge is in centrifugation position. The device includes at least two annular zones whose number of orifices per unit of surface area differs by a value greater than or equal to 5%, 10%, or 20%.

Process and device for formation of mineral wool and mineral wool products

A device for internal centrifugation of mineral fibers including a centrifuge equipped with a peripheral band perforated with orifices distributed in a plurality of annular zones arranged on top of each other, assuming that the centrifuge is in centrifugation position. The device also includes at least two annular zones whose number of orifices per unit of surface area differs by a value greater than or equal to 5%, in particular greater than or equal to 10%, and even 20%.

Method and device for forming mineral wool

The present invention provides tubes for, in an exemplary embodiment, dispensing loose fill insulation. The tube comprises an inner web formed in a tubular shape and having a plurality of spaced helical projections disposed along an inner surface thereof and extending towards a central longitudinal axis of the inner web, the inner surface of the inner web also forming an inner surface of the tube. A cap is disposed around an outer periphery of the inner web. The helical projections serve to condition the insulation as the insulation passes through the tube.

Hose for installing loose fill insulation

Loosefill insulation hose with different sized lips

Loosefill insulation hose with double lips

Loosefill insulation hose with triple lips

Loosefill insulation hose with opposite inclined lips

The present invention serves to substantially improve the dust capture property of dedusting oils, by modifying these oils with nonionic and/or cationic surfactants. The application of surfactant modified oils reduces dust that is generated when loose-fill insulation is installed.

Growing community of inventors

Lansdale, PA, United States of America

Christophe Wagner