公开(公告)号：US20140037957A1

公开(公告)日：2014-02-06

申请号：US13800179

申请日：2013-03-13

Applicant: Sabic Innovative Plastics IP B.V.

Inventor： Richard Peters ,  Dave Warren ,  Mike Lindsey

IPC: D01D4/02 ,  D02G3/02 ,  D01D5/08

CPC classification number: D01D4/025 ,  D01D1/09 ,  D01D4/06 ,  D01D5/08 ,  D01D5/084 ,  D01D5/098 ,  D01F6/74 ,  D02G3/02 ,  Y10T428/298

Abstract: A method including the steps of extruding a melt including an amorphous polymer composition through a spinneret under a pressure of from 400 to 1500 psi to produce a spun fiber; collecting the spun fiber on a feeding roll without drawing the spun fiber; producing a solidified fiber from the spun fiber. The solidified fiber can have a dpf within a range of from greater than 0 to 2.5 dpf, and a shrinkage less than or equal to 2%. The method can also include collecting the solidified fiber onto a spool without subjecting the solidified fiber to a drawing step. A spinneret for producing fibers of at most 2.5 dpf from a composition comprising an amorphous polyetherimide polymer, the spinneret comprising a die having a plurality of round melt channels but no distribution plates. Fibers produced by the method and from the spinneret are also disclosed.

Abstract translation: 一种方法，包括以下步骤：在400至1500psi的压力下通过喷丝头挤出包含无定形聚合物组合物的熔体以产生纺丝纤维; 在进料辊上收集纺丝纤维而不拉伸纺丝纤维; 从纺丝纤维生产固化纤维。 固化纤维的dpf可以在大于0至2.5dpf的范围内，并且收缩率小于或等于2％。 该方法还可以包括将固化的纤维收集到卷轴上，而不对固化的纤维进行拉伸步骤。 用于从包含无定形聚醚酰亚胺聚合物的组合物生产最多2.5dpf的纤维的喷丝头，所述喷丝头包括具有多个圆形熔体通道但没有分配板的模具。 还公开了通过该方法和喷丝头生产的纤维。