公开(公告)号：EP0766624A4

公开(公告)日：1999-02-24

申请号：EP95923664

申请日：1995-05-25

Applicant: E2 DEV CORP

Inventor： BECK MARTIN H ,  ROLLEND GEORGE F ,  REED LYDIA K ,  WATSON MARSHALL TREDWAY ,  ARSENAU DAVID WARREN

IPC: B32B5/26 ,  D01D5/098 ,  D04H1/54 ,  D04H1/56 ,  B32B5/06 ,  B32B5/22 ,  B32B27/00 ,  D01D5/12 ,  D04H1/58

CPC classification number: B32B5/26 ,  B32B5/022 ,  B32B27/08 ,  B32B27/36 ,  B32B37/153 ,  B32B2250/20 ,  B32B2262/0276 ,  B32B2305/20 ,  B32B2307/304 ,  B32B2367/00 ,  D01D5/0985 ,  D04H1/54 ,  D04H1/56 ,  Y10S428/904 ,  Y10S428/913 ,  Y10T428/237 ,  Y10T442/626

Abstract: A non-woven mat of fibrous thermoplastic insulation (52, 54, 56) is produced by melt blowing recycled polyethylene terephthalate (PET). The PET is melted, pressurized and extruded from an extrusion head (5) into substantially continuous fibers (20) that are subjected to turbulent high velocity air (41) that attenuates the fibers (C). The fibers (22) are then collected on a collection device (39) building up a non-woven mat. The collection device (39) is spaced from the extrusion device (5) forming a flight path for the fibers (20) that is sufficiently long that the fibers split apart under the force of the high velocity air (41), fibrillating into a plurality of very fine fibrils (22) of under 15 microns in diameter. These fibrils (22) are analogous to goose down and greatly enhance the loft and R value of the mat.