TH42801A3 - A process for making long fibers with high denier values of thermally modified liquid crystal polymers and their mixtures. - Google Patents

Abstract

DC60 (12/11/42) This invention is described and entitled as a new process for forming long fibers with High denier in follow-up conditions The existing and long fibers in the condition were thermally treated of a thermally altered liquid crystal polymer. The preferred profile consists of the formation of a single strand in spinning as-is, and In the condition it was treated with heat of aromatic polyester. And aromatic polyester A few total thermometers, this process includes (a) heating of a liquid crystal polymer that changes with Hot over temperature range The molten transformation of the polymer (b) passes the molten polymer into a channel mounted by an extruder tube with a contour ratio greater than approx. 1 and less than approx. 15 and (c). Long fibers at a minimum tensile ratio of about 4 fibers form at least 50 denier per long fiber (DPF) and the basic characteristics are The arrangement of molecules that Evenly across the cross-section in the final optional step Long fibers are then treated with heat to form long fibers showing properties. Excellent tensile strength, long fibers in the spinning condition as is And the long fibers in both conditions were treated with heat Kind has properties Maintaining good tensile strength which is characteristic At least 80 to 90 percent of The expected properties of ordinary low denier long fibers (5 to 10 DPF). The invention was described and entitled as a new process for the formation of long fibers with High denier in follow-up conditions The existing and long fibers in the condition were thermally treated of a thermally altered liquid crystal polymer. The preferred profile consists of the formation of a single strand in spinning as-is, and In the condition it was treated with heat of aromatic polyester. And aromatic polyester A few total thermometers, this process includes (a) heating of a liquid crystal polymer that changes with Hot over temperature range The molten transformation of the polymer (b) passes the molten polymer into a channel mounted by an extruder tube with a contour ratio greater than approx. 1 and less than approx. 15 and (c). Long fibers at a minimum tensile ratio of about 4 fibers form at least 50 denier per long fiber (DPF) and the basic characteristics are The arrangement of molecules that Evenly across the cross-section in the final optional step Long fibers are then treated with heat to form long fibers showing properties. Excellent tensile strength, long fibers in the spinning condition as is And long fibers in both condition were treated with heat Kind will have properties Maintaining good tensile strength which is characteristic At least 80 to 90 percent of The expected properties of ordinary long fibers with low denier (5 to 10 DPF).

Claims (1)

1. a process for forming long fibers in the spinning state as-is of crystalline polymers. Liquid that changes with (I) At least approximately 50 denier per long fiber (ii), at least approximately 8 g per denier, (iii) modulus at least. Approximately 450 g per denier and (iv) approx. 2% minimum elongation. The process includes a tag step: