专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 再颁专利

USRE37526E1 Process for making high denier filaments of thermotropic liquid crystalline polymers and compositions thereof 有权
标题翻译：用于制造热致液晶聚合物的高旦数长丝的方法及其组合物
公开(公告)号：USRE37526E1
公开(公告)日：2002-01-22
申请号：US09416199
申请日：1999-10-08
申请人： John Anthony Flint , Michael Jaffe , M. Ishaq Haider , Joseph J. DiBiase , John Edward Cornetta
发明人： John Anthony Flint , Michael Jaffe , M. Ishaq Haider , Joseph J. DiBiase , John Edward Cornetta
IPC分类号： B32B900
CPC分类号： D01F6/82 , D01F6/84 , Y10T428/2913 , Y10T428/2964 , Y10T428/2969
摘要： The present invention discloses and claims a novel process for the formation of high denier as-spun and heat-treated filaments of a thermotropic liquid crystalline polymer. Preferred embodiments include process for the formation of as-spun and heat treated monofilaments of a few wholly aromatic polyesters and polyesteramides. The process involves (a) heating of a thermotropic liquid crystalline polymer to above its melting transition temperature; (b) passing said molten polymer through an extrusion chamber equipped with an extrusion capillary of an aspect ratio of greater than about 1 and less than about 15 to form a filament; and (c) winding the filament at a draw-down ratio of at least about 4. The filaments so formed are of at least 50 denier per filament (dpf) and feature essentially uniform molecular orientation across the cross-section. In a final optional step, the filaments are heat treated in stages to form filaments exhibiting excellent tensile properties. Both as-spun and heat-treated filaments feature remarkably good tensile properties retaining at least 80 to 90 percent of the properties expected of conventional low denier (5 to 10 dpf) filaments.
摘要翻译：本发明公开并要求一种用于形成热致伸液晶聚合物的高旦旦纺丝和热处理长丝的新方法。优选的实施方案包括形成少量全芳族聚酯和聚酯酰胺的初纺和热处理单丝的方法。该方法包括（a）将热致液晶聚合物加热至其熔融转变温度以上; （b）使所述熔融聚合物通过装配有长宽比大于约1且小于约15的挤出毛细管的挤出室，以形成长丝; 并且（c）以至少约4的拉伸比卷绕细丝。如此形成的长丝具有至少50旦尼尔/丝（dpf），并且在横截面上具有基本均匀的分子取向。在最后的任选步骤中，细丝被分阶段热处理以形成显示出优异拉伸性能的长丝。原丝和热处理的长丝都具有非常好的拉伸性能，保持传统低旦尼尔（5至10dpf）长丝所预期的性能的至少80％至90％。

2. 发明授权

US06187437B1 Process for making high denier multilobal filaments of thermotropic liquid crystalline polymers and compositions thereof 有权
标题翻译：用于制备热致液晶聚合物的高旦数多叶长丝的方法及其组合物
公开(公告)号：US06187437B1
公开(公告)日：2001-02-13
申请号：US09150921
申请日：1998-09-10
申请人： M. Ishaq Haider , John Anthony Flint , Michael Jaffe , Joseph J. DiBiase , John Edward Cornetta
发明人： M. Ishaq Haider , John Anthony Flint , Michael Jaffe , Joseph J. DiBiase , John Edward Cornetta
IPC分类号： B32B2734
CPC分类号： D01F6/82 , D01D5/253 , D01F6/62 , D01F6/84 , Y10T428/2969 , Y10T428/2973 , Y10T428/2975
摘要： The present invention discloses and claims a novel process for the formation of high denier as-spun and heat-treated multilobal filaments of a thermotropic liquid crystalline polymer. Preferred embodiments include process for the formation of as-spun and heat treated octalobal monofilaments of a few wholly aromatic polyesters and polyesteramides. The process involves (a) heating of a thermotropic liquid crystalline polymer to above its melting transition temperature; (b) passing said molten polymer through an extrusion chamber equipped with an extrusion capillary having a multilobal cross-section to form a multilobal filament; and (c) winding the filament at a suitable draw-down. The filaments so formed are of at least 50 denier per filament (dpf) and feature essentially uniform molecular orientation across their cross-section. In a final optional step, the filaments are heat treated in stages to form filaments exhibiting excellent tensile properties. Both as-spun and heat-treated filaments feature remarkably good tensile properties comparable to those of round filaments. Most importantly, the multilobal filaments of this invention feature much superior adhesion properties than the conventional round filaments.
摘要翻译：本发明公开并要求一种用于形成热致伸缩液晶聚合物的高旦旦纺丝和热处理多叶长丝的新方法。优选的实施方案包括形成几种完全芳族聚酯和聚酯酰胺的初纺和热处理的八面体单丝的方法。该方法包括（a）将热致液晶聚合物加热至其熔融转变温度以上; （b）使所述熔融聚合物通过装备有具有多叶横截面的挤出毛细管的挤出室以形成多叶长丝; 和（c）将丝缠绕在合适的拉伸下。如此形成的细丝具有至少50旦尼尔/丝（dpf），并且在其横截面上具有基本均匀的分子取向。在最后的任选步骤中，细丝被分阶段热处理以形成显示出优异拉伸性能的长丝。初纺和热处理的长丝具有与圆丝相当的非常好的拉伸性能。最重要的是，本发明的多叶长丝具有比常规圆丝更好的粘合性能。

3. 发明授权

US6129878A Process for direct on-bobbin heat treating of high denier filaments of thermotropic liquid crystalline polymers 有权
标题翻译：用于热致液晶聚合物的高旦尼尔长丝的直接在线筒热处理的方法
公开(公告)号：US6129878A
公开(公告)日：2000-10-10
申请号：US151037
申请日：1998-09-10
申请人： M. Ishaq Haider , John Anthony Flint , Michael Jaffe , John Edward Cornetta , Joseph J. DiBiase
发明人： M. Ishaq Haider , John Anthony Flint , Michael Jaffe , John Edward Cornetta , Joseph J. DiBiase
IPC分类号： D01D5/084 , D01D10/02 , D01F6/60 , D01F6/62 , D01F6/82 , D01F6/84 , D02J13/00 , D01D5/16
CPC分类号： D01F6/82 , D01D10/02 , D01F6/62 , D01F6/84
摘要： The present invention discloses and claims a novel process for the heat treatment of high denier filaments of a thermotropic liquid crystalline polymer. Preferred embodiments include process for the formation of heat treated filaments of a few wholly aromatic polyesters and polyesteramides. The process involves: (a) heating of a thermotropic liquid crystalline polymer to above its melting transition temperature; (b) passing said molten polymer through an extrusion chamber equipped with an extrusion capillary of an aspect ratio of greater than about 1 and less than about 15 to form a filament; (c) winding the filament on to a bobbin at a low tension and draw-down ratio of at least about 4; and (d) heat treating the filament directly on the bobbin at suitable temperature and pressure conditions for a sufficient period of time. The filaments so formed are of at least 50 denier per filament (dpf) and feature essentially uniform molecular orientation across the cross-section. The heat-treated filaments feature remarkably good tensile properties retaining at least 80 to 90 percent of the properties expected of conventional low denier (5 to 10 dpf) filaments.
摘要翻译：本发明公开并要求一种用于热致热液晶聚合物的高旦尼尔长丝的热处理的新方法。优选的实施方案包括形成几种全芳族聚酯和聚酯酰胺的经热处理的长丝的方法。该方法包括：（a）将热致液晶聚合物加热至其熔融转变温度以上; （b）使所述熔融聚合物通过装配有长宽比大于约1且小于约15的挤出毛细管的挤出室，以形成长丝; （c）以至少约4的低张力和拉伸比将丝缠绕在线轴上; 和（d）在合适的温度和压力条件下将纤维直接在筒管上热处理足够的时间。如此形成的细丝具有至少50旦尼尔/丝（dpf），并且在横截面上具有基本均匀的分子取向。经热处理的长丝具有显着良好的拉伸性能，保持常规低旦尼尔（5至10dpf）长丝所预期的性能的至少80％至90％。

4. 发明授权

US5945216A Process for making high denier filaments of thermotropic liquid crystalline polymers and compositions thereof 有权
公开(公告)号：US5945216A
公开(公告)日：1999-08-31
申请号：US150853
申请日：1998-09-10
申请人： John Anthony Flint , Michael J. Jaffe , M. Ishaq Haider , Joseph J. DiBiase , John Edward Cornetta
发明人： John Anthony Flint , Michael J. Jaffe , M. Ishaq Haider , Joseph J. DiBiase , John Edward Cornetta
IPC分类号： D01F6/62 , D01D5/08 , D01F6/60 , D01F6/82 , D01F6/84 , D02J13/00 , B32B9/00
CPC分类号： D01F6/82 , D01F6/84 , Y10T428/2913 , Y10T428/2964 , Y10T428/2969
摘要： The present invention discloses and claims a novel process for the formation of high denier as-spun and heat-treated filaments of a thermotropic liquid crystalline polymer. Preferred embodiments include process for the formation of as-spun and heat treated monofilaments of a few wholly aromatic polyesters and polyesteramides. The process involves (a) heating of a thermotropic liquid crystalline polymer to above its melting transition temperature; (b) passing said molten polymer through an extrusion chamber equipped with an extrusion capillary of an aspect ratio of greater than about 1 and less than about 15 to form a filament; and (c) winding the filament at a draw-down ratio of at least about 4. The filaments so formed are of at least 50 denier per filament (dpf) and feature essentially uniform molecular orientation across the cross-section. In a final optional step, the filaments are heat treated in stages to form filaments exhibiting excellent tensile properties. Both as-spun and heat-treated filaments feature remarkably good tensile properties retaining at least 80 to 90 percent of the properties expected of conventional low denier (5 to 10 dpf) filaments.

5. 发明授权

US5472761A Vibration damping superabsorbent composites 失效
标题翻译：振动阻尼超吸收复合材料
公开(公告)号：US5472761A
公开(公告)日：1995-12-05
申请号：US169855
申请日：1993-12-17
申请人： Harris A. Goldberg , Joseph M. Pickton , Joseph J. DiBiase , William T. Ryans
发明人： Harris A. Goldberg , Joseph M. Pickton , Joseph J. DiBiase , William T. Ryans
IPC分类号： B32B7/04 , F16F1/36 , G10K11/168 , B32B1/06
CPC分类号： G10K11/168 , B32B7/04 , F16F1/3605 , Y10T428/233 , Y10T428/234 , Y10T428/239 , Y10T428/249994
摘要： Vibration damping composites suitable for use in construction panels or constrained-layer elements are described. The composites include a viscoelastic gel prepared from 99.5-92.5 wt. % water and 0.5-7.5 wt. % of a superabsorbent polymer. Preferably, the polymer is of the carboxylic acid type and optionally includes starch or cellulose.
摘要翻译：描述适用于建筑面板或约束层元件的振动阻尼复合材料。复合材料包括由99.5-92.5wt。制备的粘弹性凝胶。％水和0.5-7.5重量％％的超吸收性聚合物。优选地，聚合物是羧酸类型，并且任选地包括淀粉或纤维素。

6. 发明授权

US5093062A Process for spinning preceramic polymers 失效
标题翻译：纺丝前陶瓷聚合物的工艺
公开(公告)号：US5093062A
公开(公告)日：1992-03-03
申请号：US563901
申请日：1990-06-19
申请人： Martin H. G. Deeg , Joseph J. DiBiase , Joseph Pickton
发明人： Martin H. G. Deeg , Joseph J. DiBiase , Joseph Pickton
IPC分类号： C04B35/622 , D01D1/04 , D01D5/08
CPC分类号： C04B35/62227 , B29C47/786 , B29C47/822 , D01D1/04 , D01D5/08
摘要： Organometallic preceramic polymers are melt spun into fibers utilizing a spinning apparatus which directs the preceramic polymer from a stagnant melt pool of said polymer to a spinneret. The spinneret is one used for solvent spinning and, thus, has a shorter residence time during extrusion through the spinneret orifice than conventional melt spinning spinnerets.
摘要翻译：使用纺丝装置将有机金属前陶瓷聚合物熔融纺丝成纤维，该纺丝装置将预陶瓷聚合物从所述聚合物的停滞熔池引导至喷丝头。喷丝头是用于溶剂纺丝的喷丝头，因此在喷丝头孔挤出过程中比常规熔纺丝喷丝头具有更短的停留时间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式