公开(公告)号：US20240191430A1

公开(公告)日：2024-06-13

申请号：US18354588

申请日：2023-07-18

申请人： CLEANFIBER INC.

发明人： Jonathan Strimling ,  Mark Brandstein ,  Curtis Fischer

IPC分类号： D21B1/16 ,  D21B1/32 ,  D21B1/34 ,  D21C5/02 ,  D21H21/34 ,  D21H21/50

CPC分类号： D21B1/16 ,  D21B1/32 ,  D21H5/0002 ,  D21B1/347 ,  D21C5/02 ,  D21H21/50

摘要： Methods for making fire retardant material including fire retardant cellulosic insulation are described. The methods include arrangements for partitioning fibers derived from fiber feedstocks and adding at least a portion of fibers of one or more feedstocks and a fire retardancy chemical compound to a mixer prior to fiber drying. The fibers may be disentangled and/or partitioned prior to mixing with the fire retardancy chemical compound. The fibers may be partially dewatered prior to the drying or other steps of the methods. The feedstock may include old newsprint (ONP), old corrugated containers (OCC), and/or other cellulose-based materials. The method further includes retaining the fibers feedstock and the chemical compound together for enough time to ensure adherence and impregnation of enough of the chemical to and in the fibers after the drying process. Fibers may be partitioned and disentangled prior to, during, and/or after treatment with the fire retardancy compound. The fire retardant cellulose insulation may be a standalone product or may be a component of a finished insulation end product.

公开(公告)号：US20240165929A1

公开(公告)日：2024-05-23

申请号：US18281820

申请日：2022-03-14

申请人： CLEANFIBER INC.

发明人： Jonathan Strimling ,  Michael Bilodeau ,  Randell Drane ,  Nicholas Yardy

IPC分类号： B32B27/06 ,  B32B29/00 ,  B32B29/06 ,  B32B38/00

CPC分类号： B32B27/065 ,  B32B29/007 ,  B32B29/06 ,  B32B38/0004 ,  B32B2307/3065 ,  B32B2317/122 ,  B32B2317/18

摘要： An insulation composition including a biomass-derived polymer, a cellulose component, and a fire retardant applied to at least a portion of either or both of the biomass-derived polymer and the cellulose component. The biomass-derived polymer may be used to bind the cellulose component. The cellulose component may be fibers, cellulose dust, nanocrystalline structure, or a combination. The insulation composition may be formed into batts, assemblies, or boards. The insulation composition may be processed in the field by shredding to form loose fill insulation. The composition may be treated with one or more additives, including an expansion component selected to reduce the density of the composition.