Certainteed Corporation

Minnesota Thermal Science, LLC

Kurt O Mankell

Murray S Toas

Christophe Wagner

Husnu M Kalkanoglu

William N Mayer

Thomas A Cuthbertson

Mark Trabbold

Kenneth D Knapp

William T Mayer

David L Jacobson

R Allan Snyder

Nick Flocco

Robert W Storey

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 invention is an assembly of abutting vacuum insulated panels configured and arranged to form a retention chamber with a slip surface providing a low kinetic coefficient of friction interposed between the panels within the abutment areas.

Assembly of abutting vacuum insulated panels arranged to form a retention chamber with a slip surface interposed between the panels

A baffled insulation product for ventilating air under a roof from an open space is provided comprising an elongated insulation mat having top and bottom major surfaces, the top major surface facing the roof when the product is installed in the open space, the insulation mat having a baffle integral therewith proximate to the top major surface, comprising at least one airflow channel for the ventilating air.

Insulation batt having integral baffle vent

A device and system for securing adjacent segments of duct work formed from fibrous glass duct board insulation and the like is disclosed. The device comprises a corner member having two legs disposed at approximately right angles, each of said legs having oppositely facing and substantially parallel adjacent channels disposed therein to accommodate portions of opposed edges of adjacent segments of duct work. The system includes a plurality of corner members each having two legs disposed at approximately right angles, said legs having substantially parallel and oppositely facing adjacent channels disposed therein to accommodate at least a portion of the opposed edges of adjacent segments of duct work.

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Blue Bell, PA, United States of America

Kurt O Mankell