公开(公告)号：US3795571A

公开(公告)日：1974-03-05

申请号：US3795571D

申请日：1972-09-21

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： PRENTICE J

IPC: D04H3/16 ,  B32B7/14 ,  D04H11/00

CPC classification number: B32B5/26 ,  B32B5/022 ,  B32B7/12 ,  B32B2262/0253 ,  B32B2307/54 ,  B32B2307/5825 ,  D04H3/16 ,  Y10S428/903 ,  Y10T428/24826 ,  Y10T428/24934 ,  Y10T428/2933 ,  Y10T442/619 ,  Y10T442/621 ,  Y10T442/625 ,  Y10T442/68

Abstract: A LAMINATED NON-WOVEN SHEET IS MADE FROM NON-WOVEN MATS OF MELT-BROWN THERMOPLASTIC POLYMER FIBERS. THE NON-WOVEN SHEETS MAY BE PRODUCED BY EITHER POINT WELDING OR USING ADHESIVES TO LAMINATE AT LEAST ONE NON-WOVEN MAT HAVING A HIGH STRIP TENSILE STRENGTH TO AT LEAST ON

NON-WOVEN MAT HAVING A HIGH TEAR RESISTANCE SO THAT THE SHEETS HAVE BOTH HIGH STRIP TENSILE STRENGTH AND HIGH TEAR RESISTANCE.

D R A W I N G

公开(公告)号：US3715251A

公开(公告)日：1973-02-06

申请号：US3715251D

申请日：1969-10-09

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： PRENTICE J

IPC: D04H3/16 ,  B32B17/12 ,  B32B31/04

CPC classification number: B32B5/26 ,  B32B2262/0253 ,  B32B2307/54 ,  B32B2307/5825 ,  D04H3/16 ,  Y10T428/24826

Abstract: A LAMINATED NON-WOVEN SHEET IS MADE FROM NON-WOVEN MATS OF MELT-BLOWN THERMOPLASTIC POLYMER FIBERS. THE NON-WOVEN SHEETS MAY BE PRODUCED BY EITHER POINT WELDING OR USING ADHESIVES TO LAMINATE AT LEAST ONE NON-WOVEN MAT HAVING A HIGH STRIP TENSILE STRENGTH TO AT LEAST ONE NON-WOVEN MAT HAVING A HIGH TEAR RESISTANCE SO THAT THE SHEETS HAVE BOTH HIGH STRIP TENSILE STRENGTH AND HIGH TEAR RESISTANCE.

公开(公告)号：US3841953A

公开(公告)日：1974-10-15

申请号：US23152172

申请日：1972-03-03

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： LOHKAMP D ,  PRENTICE J

IPC: D01D5/098 ,  D04H3/16 ,  D04H3/14

CPC classification number: D01D5/0985 ,  D04H3/16 ,  Y10T428/29 ,  Y10T442/625 ,  Y10T442/626

Abstract: 1. A NONWOVEN MAT WHICH COMPRISES SOLELY OF: A PLURALITY OF RANDOMLY DISPERSED SUPERFINE DISCONTINUOUS FIBERS WHICH FIBERS HAVE BEEN PREPARED FROM A MELT-BLOWING PROCESS IN WHICH TWO OR MORE COMPONENTS, ONE OF WHICH IS A THERMOPLASTIC FIBER-FORMING RESIN, ARE BLENDED TOGETHER, EXTRUDED IN THEIR MOLTEN STATE THROUGH A ROW OF DIE OPENINGS IN A DIE HEAD, CONTACTED WITH STREAM OF HOT GAS AT SAID DIE HEAD IN ORDER TO ATTENUATE THE EXTRUDED RESIN IN A DIRECTION AWAY FROM THE DIE OPENINGS TO FORM FIBERS AND COLLECTING SAID FIBERS AT A DISTANCE BETWEEN FROM 1 TO 30 INCHES FROM THE DIE OPENINGS, SAID FIBERS HAVING AVERAGE DIAMETERS OF FROM 0.5 TO 5 MICRONS, WHEREIN EACH FIBER COMPRISES A BLEND OF A MAJOR PORTION OF SAID FIBER-FORMING THERMOPLASTIC RESIN AND AT LEAST ONE OTHER COMPONENT SELECTED FROM THE GROUP CONSISTING OF DYES SUITABLE FOR COLORING SAID BLEND, NON-FIBER FORMING THERMOPLASTIC RESINS AND COMBINATIONS OF THE FOREGOING, WHEREIN SAID BLEND COMPRISES NOT MORE THAN 10 WT. PERCENT OF SAID DYES BASED ON THE TOTAL BLEND, WHEREIN SAID MAT IS FREE OF SHOT AND ROPE AND WHEREIN SAID ONE OTHER COMPONENT IS GENERALLY DISSIMILAR IN CHEMICAL PROPERTIES FROM SAID FIBER-FORMING THERMOPLASTIC RESIN.

Abstract translation: 在热塑性聚合物纤维中制备的基本上完全不含聚合物射流的熔喷无纺毡在改进的熔喷法中以高聚合物生产速率生产，其中具有至少1.4的初始特性粘度的热塑性聚合物树脂，优选聚丙烯是 任选在存在自由基源化合物的情况下降解，使熔融喷嘴孔中的特性粘度和表观粘度均降低约50至约300泊。

公开(公告)号：US3755527A

公开(公告)日：1973-08-28

申请号：US3755527D

申请日：1969-10-09

Applicant: EXXON RESEARCH ENGINEERING CO

Inventor： KELLER J ,  PRENTICE J ,  HARDING J

IPC: D01D5/098 ,  D01D5/12 ,  D04H3/16

CPC classification number: D04H3/16 ,  D01D5/0985 ,  D01D7/00

Abstract: A HIGHLY TEAR RESISTANT NONWOVEN MAT OF THERMOPLASTIC POLYMER FIBERS IS MADE IN A MELT-BLOWING PROCESS IN WHICH A MOLTEN POLYMERIC RESIN IS EXTRUDED THROUGH A ROW OF DIE OPENINGS INTO A STREAM OF HOT GAS WHICH ATTENUATES THE RESIN INTO FIBERS HAVING DIAMETERS BETWEEN ABOUT 10-40 MICRONS. THE FIBERS ARE COLLECTED ON A CONTINUOUSLY MOVING SURFACE POSITIONED FROM ABOUT 10 TO ABOUT 30 INCHES FROM THE DIE OPENINGS.