University of Maine System

Green Comfort Safe, Inc.

Ultracell Insulation, LLC

Robert A Hupper

Michael Albert Bilodeau

Michael T Kelly

Mark A Paradis

Richard Wheeler Munson

Gerard A Gagnon

Daniel Harold Thompson, Jr

Michael Thorne Kelly

Daniel H Thompson

Richard W Munson

A method for making fire retardant material including fire retardant cellulosic insulation is described. The method includes an arrangement for adding one or more feedstocks and a fire retardancy chemical compound to a common blend tank prior to feedstock drying. The one or more feedstocks may include at least one virgin pulp stock feed and at least one recycled material stock feed. The amount and type of both the virgin feedstock and the recycled material feedstock is selectable. Old newsprint (ONP) may be one type of recycled material feedstock. Another suitable type of recycled material feedstock is old corrugated containers (OCC). The method further includes retaining the fiber feedstock and the chemical compound together for enough time to ensure adherence or impregnations of enough of the chemical to the fibers after the drying process. Fluffing or fiberizing of the treated fibers may be accomplished under less severe conditions than ordinarily employed when making conventional cellulose insulation.

Method for making fire retardant materials and related products

Growing community of inventors

Madison, ME, United States of America

Robert A Hupper