公开(公告)号：US3978185A

公开(公告)日：1976-08-31

申请号：US468114

申请日：1974-05-08

Applicant: Robert R. Buntin ,  James P. Keller ,  John W. Harding

Inventor： Robert R. Buntin ,  James P. Keller ,  John W. Harding

IPC: B29C48/345 ,  D01D5/098 ,  D04H3/16 ,  B29C17/06

CPC classification number: D01D5/0985 ,  B29C47/30 ,  D04H3/16 ,  B29C47/0014 ,  Y10S264/75

Abstract: Melt blown non-woven mats prepared from thermoplastic polymer fibers and substantially completely free of polymer shot are produced at high polymer throughput rates in an improved melt blowing process in which thermoplastic polymer resins, preferably polypropylene, having initial intrinsic viscosities of at least 1.4, are degraded, optionally in the presence of a free radical source compound, to have both reduced intrinsic viscosities and an apparent viscosity in the melt-blowing nozzle orifices of from about 50 to about 300 poise.

公开(公告)号：US5075068A

公开(公告)日：1991-12-24

申请号：US596057

申请日：1990-10-11

Applicant: Mancil W. Milligan ,  Robert R. Buntin ,  Fumin Lu

Inventor： Mancil W. Milligan ,  Robert R. Buntin ,  Fumin Lu

IPC: D01D4/02 ,  D01D5/098 ,  D01D10/00 ,  D02J1/22 ,  D04H1/56 ,  D04H3/16

CPC classification number: D01D4/025 ,  D01D5/0985

Abstract: A meltblowing die is provided with means for discharging crossflow air onto meltblown filaments to disrupt their shape and flow pattern between the die and the collector. The disruption enhances drag forces imparted by the primary meltblowing air and results in smaller diameter filaments.

Abstract translation: 熔喷模具设置有用于将交叉流空气排放到熔喷丝上以破坏其在模具和收集器之间的形状和流动图案的装置。 这种破坏增强了由主熔吹空气赋予的阻力，并且导致较小直径的细丝。

公开(公告)号：US06244845B1

公开(公告)日：2001-06-12

申请号：US09304729

申请日：1999-05-04

Applicant: Mancil W. Milligan ,  Robert R. Buntin

Inventor： Mancil W. Milligan ,  Robert R. Buntin

IPC: D01D514

CPC classification number: D01D4/025 ,  D01D5/0985

Abstract: The present invention relates to a die nosepiece for use in textile processes involving nonwoven melt blow fabrics. In a melt blown process, molten polymer resins are injected into a melt blown die and ejected from the die in the form of filaments. The present invention is directed to an improved die nosepiece comprising a slit with serrated edges through which resin filaments are ejected.

Abstract translation: 本发明涉及一种用于涉及非织造熔喷织物的纺织工艺中的模头。 在熔喷过程中，将熔融的聚合物树脂注入熔喷模具中并以长丝的形式从模具中排出。 本发明涉及一种改进的模头，其包括具有锯齿状边缘的狭缝，树脂细丝通过该狭缝喷射。

公开(公告)号：US5273565A

公开(公告)日：1993-12-28

申请号：US960164

申请日：1992-10-14

Applicant: Mancil W. Milligan ,  Robert R. Buntin ,  Fumin Lu

Inventor： Mancil W. Milligan ,  Robert R. Buntin ,  Fumin Lu

IPC: B01D39/16 ,  B01D39/08 ,  D01D5/098 ,  D04H1/54 ,  D04H1/56

CPC classification number: D01D5/0985 ,  B01D39/1623 ,  D04H1/56 ,  B01D2239/0208 ,  B01D2239/0216 ,  B01D2239/0622 ,  B01D2239/064 ,  B01D2239/1233 ,  B01D2239/125 ,  B01D2239/1291 ,  Y10S55/44

Abstract: A meltblown web is composed of fibers having a narrow fiber size distribution (expressed as % coefficient of variation of the average fiber diameter) and low packing density. The web is characterized as a soft lofty web and exhibits exceptional filtration capability. The web preferably comprises fibers having an average fiber size of between 3 and 10 microns and a packing density of between 5 to 15%, and a CV of 15 to 40%.

Abstract translation: 熔喷纤维网由具有窄纤维尺寸分布（表示为平均纤维直径的％变异系数）和低包装密度的纤维组成。 纤维网的特点是柔软的网页，并具有出色的过滤能力。 纤维网优选包含平均纤维尺寸为3至10微米，包装密度为5至15％，CV为15至40％的纤维。

公开(公告)号：US3972759A

公开(公告)日：1976-08-03

申请号：US368769

申请日：1973-06-11

Applicant: Robert R. Buntin

Inventor： Robert R. Buntin

IPC: D04H1/56 ,  H01M2/14 ,  D04H3/16 ,  H01M2/16

CPC classification number: H01M2/14 ,  D04H1/56

Abstract: A battery separator and the process for preparing it, having excellent abrasion resistance, stiffness, porosity, pore size, and electrical resistance is produced by a process that includes degrading a fiber forming polymer, melt-blowing fibers from the degraded polymers and forming a non-woven mat of the fibers randomly laid and self-bonded. The non-woven mat is then compacted, in a critical manner, preferably at temperatures for polypropylene of from 290.degree. to 310.degree.F., using relatively low pressures, i.e. 10 psi/in.sup.2 or lss, to obtain a battery separator meeting precise and essential specifications.

Abstract translation: 一种电池隔板及其制备方法，具有优异的耐磨性，刚度，孔隙率，孔径和电阻，通过包括降解成纤聚合物，熔融吹塑纤维和降解聚合物形成非离子表面活性剂 纤维织物随机铺放和自粘合。 然后使用相对较低的压力（即10psi / in2或lss）以非常方式，以290℃至310°F的聚丙烯的温度，以非常方便的方式压制非织造垫，以获得电池分离器，以满足精确和 基本规格。

公开(公告)号：US3947537A

公开(公告)日：1976-03-30

申请号：US381104

申请日：1973-07-20

Applicant: Robert R. Buntin ,  Walter A. Morgan

Inventor： Robert R. Buntin ,  Walter A. Morgan

IPC: D04H1/56 ,  H01M2/14 ,  B29D27/00

CPC classification number: H01M2/14 ,  D04H1/56

Abstract: Battery separators are produced from nonwoven mats of thermoplastic fibers by wetting the fibers with a surfactant-water mixture to modify the surface properties of the fibers in the nonwoven mat, vaporizing the water while depositing the surfactant on the fibers, heating the nonwoven mat prior to compressing and then compressing to increase the fiber-to-fiber bonding as well as to form the desired structure. During compressing, ribs may be formed by using appropriate embossed rolls or press plate patterns. After the compressing step, slitting, cooling and cutting steps are carried out to produce a battery separator of the desired dimensions.

Abstract translation: 电池分离器由热塑性纤维的非织造毡制成，通过用表面活性剂 - 水混合物润湿纤维，以改变非织造毡中的纤维的表面性质，蒸发水，同时将表面活性剂沉积在纤维上，在 压缩然后压缩以增加纤维与纤维的粘合以及形成所需的结构。 在压缩期间，可以通过使用适当的压花辊或压板图案形成肋。 在压缩步骤之后，进行切割，冷却和切割步骤以产生所需尺寸的电池隔板。