baber/WOPTO huggingface dataset:
Patent WO-2020252962-A1 (WO)
Title: 一种声波器件及其制备方法、温度控制方法
Inventor: TANG LIANG
IPC: H03H9/02
Filed: 2019-09-23
Abstract: 一种声波器件及其制备方法、声波器件的温度控制方法。制备方法包括：分别提供第一基板和第二基板（S110）；在第一基板上形成声波结构与测温电阻（S120，S130）；在第二基板上形成TEC器件（S140）；将第一基板与第二基板进行金属熔融键合，即完成声波器件的制备（S150）。此外，通过TEC器件的加热或制冷作用进行调整声波器件内的实际温度，进而实现对声波器件的温度控制，使声波器件具有稳定的工作温度。
Patent WO-2021062682-A1 (WO)
Title: Camera and movable platform
Inventor: SHIRONO MASAHIRO
IPC: H04N5/225
Filed: 2019-09-30
Abstract: A camera (100) and a movable platform (1000), the camera (100) comprising a camera body (110), a master control board (120), a functional module (130), and a flexible connecting structure (140), the flexible connecting structure (140) electrically connecting the master control board (120) and the functional module (130); an accommodating structure (150) on the camera body (110) is approximately parallel to the optical axis of a lens (112) of the camera (110); and at least part of the flexible connecting structure (140) is elastically accommodated in the accommodating structure (150).
Patent WO-2021062686-A1 (WO)
Title: Method, apparatus, and system for obtaining position information
Inventor: ZHU HUALIN
IPC: H04W4/02
Filed: 2019-09-30
Abstract: A method, apparatus, and system for obtaining position information. The method comprises: a first core network element obtains position information of a first terminal; the first core network element uses the position information of the first terminal as position information of a second terminal connected to the first terminal, the first core network element being a core network element providing service for the second terminal.
Patent WO-2020143322-A1 (WO)
Inventor: LI LIGUI
IPC: H04L29/06
Filed: 2019-11-14
Abstract: Disclosed in embodiments of the present application are a user request detection method and apparatus, a computer device, and a storage medium. The method comprises the following steps: obtaining device data of a terminal sending a user request; constructing a feature set for combined features extracted from the device data by adopting a preset score feature; inputting the feature set into a plurality of abnormality detection models according to a type of the feature set, obtaining a detection result for determining whether the user request is abnormal, and determining the detection result by adopting a preset determination method so as to determine whether the user request is abnormal, wherein the abnormality detection model is a detection model that is trained to a convergence state by adopting a positive sample or negative sample feature set in advance, and used for performing security classification on the terminal by means of the feature set. According to the method, a feature set is constructed for text type device data having a nominal attribute, an effective classification feature set can be mined, and the recognition accuracy is improved.
Patent WO-2020103881-A1 (WO)
Title: Dépistage assisté par empreintes cutanées du syndrome de down, basé sur un algorithme d'apprentissage automatique
Inventor: WANG SIJIA
IPC: G16H50/30
Filed: 2019-11-20
Abstract: L'invention concerne un système de dépistage assisté précoce du syndrome de Down, relatif au dépistage assisté par empreintes cutanées du syndrome de Down, selon un algorithme d'apprentissage automatique, ce système comprenant : (a) un module d'entrée de caractéristiques d'impression cutanée ; (b) un module de traitement de distinction du syndrome de Down sur une impression cutanée, le module de traitement mettant en oeuvre un traitement de notation de caractéristiques d'impression cutanée entrées, en fonction de critères de détermination prédéterminés, afin d'acquérir un degré de score de risque, et comparant le degré de score de risque à un degré de seuil de risque du syndrome de Down afin d'obtenir un résultat de dépistage assisté ; et (c) un module de sortie de résultat de dépistage assisté, destiné à émettre le résultat de dépistage assisté. Le système de dépistage assisté précoce du syndrome de Down permet de mettre en oeuvre un dépistage précoce assisté, simple, précis et efficace, du Syndrome de Down, de sorte à fournir une assistance forte pour une intervention postnatale précoce pour de jeunes patients atteints du syndrome de Down.
Patent WO-2021102741-A1 (WO)
Title: 一种免疫层析检测的图像分析方法以及系统
Inventor: TANG QICHEN
IPC: G06K9/62
Filed: 2019-11-27
Abstract: 本申请涉及一种免疫层析检测的图像分析方法，包括以下步骤：建立与测试项目对应的标准浓度；获取化验样本在试剂卡的层析图像，该层析图像包括质控条带以及至少一测试条带；对该层析图像进行图像预处理，得到预处理层析图像；放大该预处理层析图像得到层析图像矩阵，该层析图像矩阵包括质控条带矩阵以及测试条带矩阵；根据该测试条带矩阵与该质控条带矩阵的灰度值比值，确定化验样本的测试浓度；比对该测试浓度与该标准浓度，确定化验样本的化验结果。
Patent WO-2020258714-A1 (WO)
Title: 一种骑行者重识别方法、装置及设备
Inventor: WEI XINMING
IPC: G06K9/00
Filed: 2019-11-28
Abstract: 一种骑行者重识别方法、装置及设备。通过对行人重识别模型进行迁移学习，得到骑行者重识别模型（S101），采用所述骑行者重识别模型提取人车图片库中多个人车图片的特征向量（S102），计算特征向量之间的相似度值（S103），将最高的所述相似度值对应的至少两个所述人车图片识别为同一骑行者（S104），提高了骑行者重识别的匹配度，实现对非机动车辆违法行为的监控。
Patent WO-2020220695-A1 (WO)
Title: 气体脉冲器固体润滑转子副及其工艺方法
Inventor: QIU JUN
IPC: F15B21/12
Filed: 2019-12-13
Abstract: 本发明提供一种气体脉冲器固体润滑转子副及其工艺方法。所述固体润滑转子副采用了双金属无油滑动轴承形式，包括开了排气孔的镶嵌固体润滑转子套和开同样数目排气孔的固体润滑转子，所述镶嵌固体润滑转子套上的排气孔沿周向的分布相位与所述固体润滑转子上的排气孔的分布相位相同。本发明能够成功规避高速大口径双金属固体润滑轴承的胶合失效问题和有效减轻磨损失效问题，能够获得有效减小双金属无油轴承发热量和降温的技术效果。
Patent WO-2020168799-A1 (WO)
Inventor: ZHU JIANFENG
IPC: B65G53/14
Filed: 2019-12-18
Abstract: 一种吸料组件（100）、投料机构及洗碗机；吸料组件（100）包括第一管道（110）及第二管道（120），第一管道（110）的出口端（1140）设置于第二管道（120）内，第一管道（110）的外壁与第二管道（120）的内壁间隔设置形成抽气间隙（102），抽气间隙（102）的出口（1020）远离第一管道（110）的出口端（1140）设置，抽气装置（200）通过抽气间隙（102）与第一管道（110）的出口端（1140）连通。吸料组件（100）能够防止洗涤粉进入抽气装置（200），进而，可以把控洗涤粉的投放量，进而提升洗碗机的使用性能。
Patent WO-2020135169-A1 (WO)
Inventor: HU ZHENGPING
IPC: H01Q1/22
Filed: 2019-12-18
Abstract: 本公开提供一种移动终端，该移动终端包括：第一模组，所述第一模组上设置有第一天线；第二模组，所述第二模组与所述第一模组相连；其中，所述第一天线位于所述第一模组的远离所述第一模组与所述第二模组的连接处的部位；所述第一模组与所述第二模组的连接处设置有第二天线，所述第一模组具有相对设置的第一面和第三面，所述第二模组具有相对设置的第二面和第四面，当所述移动终端处于贴合状态时，所述第一面与所述第二面相贴合，所述第二天线的辐射体设置在所述第四面。
Patent WO-2020211421-A1 (WO)
Inventor: HAN YUNQING
IPC: D06F37/20
Filed: 2019-12-19
Abstract: A rotation balancing apparatus (10), comprising a rotation body (11) and a partition wall (12). A plurality of chambers (11a) are circumferentially distributed inside the rotation body (11); internal spaces of the plurality of chambers (11a) are isolated from each other to block liquid from flowing between the plurality of chambers (11a); the partition wall (12) is provided inside at least one chamber (11a); the partition wall (12) extends circumferentially along the rotation body (11) to separate the chambers (11a) into a plurality of passages (101) along the radial direction; the plurality of passages (101) are communicated with each other; the inner wall surface of the partition wall (12) faces the rotation central line of the rotation body (11). Also provided is a laundry treatment device comprising the rotation balancing apparatus (10). Due to the rotation balancing apparatus (10), liquid can be distributed along the circumferential direction of the chambers (11a) of the rotation body (11) quickly and relatively uniformly, the balance response to load eccentricity is quick, and the laundry treatment time is effectively shortened. In the case that the rotation speed of the rotation balancing apparatus (10) is relatively low, the liquid can also be distributed in the passages (101) uniformly.
Patent WO-2021082228-A1 (WO)
Inventor: LI FUJUN
IPC: H04M3/42
Filed: 2019-12-20
Abstract: A prefabricated data propagation method and apparatus, and an electronic device. The method comprises the following steps: step 1), a called user selecting prefabricated data and a communication number at a web end, and saving the prefabricated data and the communication number in a service background; step 2), when a calling end sends a dialing request for the communication number or the prefabricated data is changed, the service background sending the selected prefabricated data to the calling end; and step 3), the service background forcing the calling end to download and display the selected prefabricated data. A calling end plays back, before dialing a telephone number specified by an enterprise client, an incoming call video, picture or text preset by an opposite side, without needing the support of a VoLTE network and a VoLTE terminal of a telecom operator, and without being limited by a system of a communication device of the calling end, and the calling end can display, before a formal system call, related audio and video or graphic and text information configured for the calling end itself by an opposite side.
Patent WO-2020173201-A1 (WO)
Inventor: XIONG WENYUAN
IPC: G06F16/957
Filed: 2019-12-24
Abstract: 一种定位方法及装置、存储介质，该方法包括：在加载列表数据的显示界面上的第一预设位置显示设置有导航点的定位控件，导航点表征列表数据中已加载数据链中标记的位置对应的标识（S101）；当接收到作用在导航点上的第一定位操作时，在已加载数据链中确定对应的第一待定位数据位置（S102）；在显示界面上跳转到第一待定位数据位置，展示第一待定位数据位置对应的第一待定位数据，实现在显示界面上对第一待定位数据的定位（S103）。
Patent WO-2020135477-A1 (WO)
Inventor: FANG ZHIHENG
IPC: F24F13/10
Filed: 2019-12-25
Abstract: 一种导风组件及具有该导风组件的空调器，所述导风组件包括有导风板（2），所述导风板（2）的背部设置有倾斜布置的扫风格栅（3），所述扫风格栅（3）沿导风板（2）的长度方向延伸，且与导风板（2）相对固定，所述导风板（2）的内侧面（20）和扫风格栅（3）朝向内侧面（20）的一侧在同一水平面上的正投影之间所呈的夹角α为40≤α≤65°。所述的扫风格栅（3）倾斜布置在导风板（2）上，在导风板（2）运动时随导风板（2）同步运动，减小了导风组件复杂程度，同时夹角的存在，增加了扫风格栅（3）的扫风区域。
Patent WO-2020228351-A1 (WO)
Title: Pastry extrusion and molding device
Inventor: DU SONG
IPC: A21C1/12
Filed: 2019-12-30
Abstract: A pastry extrusion and molding device, comprising a base (1); a support plate (2) is fixedly connected to the top of the base (1), an electric conveying belt (3) is fixedly connected to an end of the support plate (2), a fixing plate (4) is fixedly connected to the top of the support plate (2), an extrusion container (5) is fixedly connected to a side of the fixing plate (4), an electric motor (6) is fixedly connected to the top of the extrusion container (5), a helical push roller (7) is fixedly connected to a drive shaft of the electric motor (6), the end of the helical push roller (7) away from the electric motor (6) penetrates through the extrusion container and extends into the extrusion container, a feed pipe (8) is in communication with one end of the top of the extrusion container (5), a discharge port (9) is provided at the bottom of the extrusion container (5), an extrusion die (10) is connected to an inner wall of the discharge port (9) in a threaded manner, and an electric cylinder (11) is fixedly connected to the side of the fixing plate (4) away from the extrusion container (5). The pastry extrusion and molding device integrates an extrusion device with a cutting device, facilitating saving of processing space, facilitating replacement of an extrusion die, and improving the working efficiency.
Patent WO-2021036190-A1 (WO)
Inventor: PAN YIFEI
IPC: G06F16/901
Filed: 2020-01-15
Abstract: Provided are a node layout determination method and apparatus, said method comprising: for a node group comprising a plurality of nodes, laying out a plurality of nodes in the node group according to the correlation between the nodes in the node group to obtain the relative coordinates of each node of the plurality of nodes in the corresponding node group (202); determining the relationship between node groups according to the correspondence between nodes in a node database (204); laying out the node groups in the node database according to the relationship between the node groups and the number of nodes comprised by the node groups to obtain the group coordinates of each node group (206); and, according to the relative coordinates of each node and the group coordinates of the node group to which it belongs, obtaining the real coordinates of each node, wherein for node groups comprising a single node, the real coordinates of the single node are the group coordinates of the node group to which the single node belongs (208).
Patent WO-2020151577-A1 (WO)
Inventor: WU ZHONGBIAO
IPC: B01J27/18
Filed: 2020-01-17
Abstract: The present invention relates to the technical field of air pollution control. Disclosed are a cerium oxide catalyst modified by phosphoric acid, and a preparation method and application of the cerium oxide catalyst. The preparation method comprises the following steps: (1) soaking cerium oxide in a phosphoric acid solution, then filtering out the cerium oxide, washing the cerium oxide to be neutral, and drying same; (2) calcining the dried cerium oxide at the temperature of 100-400 °C for 1-4 hours to obtain the cerium oxide catalyst modified by the phosphoric acid. The catalyst prepared by means of the preparation method of the present invention can be used for catalytic oxidation degradation of chlorine-containing volatile organic compounds, has high catalytic activity, strong chlorine poisoning resistance, sulfur poisoning resistance and water resistance, and long catalytic service life, cannot easily generate toxic by-products when the chlorine-containing volatile organic compounds are catalytically oxidized, and has no secondary pollution.
Patent WO-2020238269-A1 (WO)
Inventor: JIANG WEI
IPC: C08G63/83
Filed: 2020-01-21
Abstract: L'invention concerne un procédé de traitement permettant de catalyser une polymérisation par ouverture de cycle de lactide. Le procédé de traitement selon l'invention utilise du trifluoroacétate de zinc (TFAA) en tant que catalyseur, utilise une substance alcoolique comme initiateur ou n'utilise pas d'initiateur, et utilise un lactide en tant que monomère pour la polymérisation en masse à une température de 110 à 220 °C, ce qui permet de préparer et d'obtenir un acide polylactique (PLA) de haute qualité. La présente invention utilise un catalyseur de type zinc vert, présente une activité élevée et requiert une petite quantité. Le PLA synthétisé présente une bonne couleur et un poids moléculaire moyen (Mw) de 1,29x104 à 7,34x105. L'utilisation de la polymérisation en masse permet d'obtenir une commodité élevée.
Patent WO-2021004069-A1 (WO)
Title: Method for recycling waste polyester material
Inventor: FANG HUAYU
IPC: C07C69/82
Filed: 2020-02-24
Abstract: The present invention relates to the technical field of waste polyester recycling, and relates to a method for recycling a waste polyester material, in particular to a method for preparing dimethyl terephthalate (DMT) by recycling waste polyester from the waste polyester by means of an improved alcoholysis method. Waste polyester subjected to water removal and oxygen removal treatment is used as a raw material; a certain proportion of alcoholysis agent ethylene glycol is added for micro-alcoholysis during melting of the waste polyester before feeding, so that the waste polyester raw material can undergo a partial alcoholysis reaction during melting and the viscosity of the molten material can also be reduced, the molten material is kept in a molten state at an alcoholysis temperature after entering an alcoholysis kettle and is not prone to solidification again, and the alcoholysis is carried out under a homogeneous condition.
Patent WO-2020238326-A1 (WO)
Title: Method and device for adjusting performance state of processor, uefi, and storage medium
Inventor: ZHANG TAO
IPC: G06F1/08
Filed: 2020-03-12
Abstract: A method and device for adjusting a performance state of a processor, a UEFI, a storage medium, and an electronic device. The method comprises: obtaining a current busy ratio of a processor, wherein the current busy ratio is a ratio of a current resource increment value of the processor core CORE to a current performance state value of the processor (S102); determining a target performance state value corresponding to the current busy ratio according to a pre-generated configuration file, wherein adjustment granularity of the busy ratio and the performance state value is recorded in the configuration file (S104); and adjusting the performance state value of the processor to be the target performance state value (S106). The method and device, the UEFI, the storage medium, and the electronic device solve the problems in the related art of a large adjustment amplitude and a waste of energy efficiency, so as to achieve the effects of improving the adjustment accuracy of the performance state of the processor and improving the utilization rate of energy efficiency.
Patent WO-2020192472-A1 (WO)
Inventor: LI YUE
IPC: A61C8/00
Filed: 2020-04-07
Abstract: Disclosed are a surgical guide plate and a preparation method therefor. The preparation method comprises the following steps: a) bonding a radiation-blocking material onto an oral mucosa, and putting on an occlusal rim; b) carrying out CBCT photographing to acquire CBCT data carrying information of the radiation-blocking material; c) acquiring STL data of an oral cavity surface; d) matching the CBCT data with the STL data; e) loading occlusal rim data; f) carrying out intelligent tooth arrangement; and g) designing an implant, and generating a surgical guide plate. By means of the preparation method, the level of comfort of a patient can be increased, preparatory processes are reduced, a radiation guide plate does not need to be made, the number of return visits is reduced, the clinical medical cost is reduced, the precision of a surgical guide plate is increased, the software design time is reduced, and the treatment experience is improved.
Patent WO-2021042703-A1 (WO)
Inventor: YANG PENGCHENG
IPC: H01M2/10
Filed: 2020-03-27
Abstract: 一种电池模组，包括电池单元和用于收容所述电池单元的箱体，所述箱体包括第一盖体、盖合于所述第一盖体的第二盖体、和设置于所述第一盖体和第二盖体之间的第一密封圈。所述第一盖体包括第一盖板和设置于所述第一盖板边缘的第一侧壁，所述第一侧壁的外侧设有卡槽。所述第二盖体包括第二盖板和设置于所述第二盖板边缘的第二侧壁，所述第二侧壁的内侧设有卡扣。所述卡扣用于容置于所述卡槽中，以使所述第二盖板相对于所述第一盖板定位且使所述第一密封圈呈压缩状态。
Patent WO-2020207310-A1 (WO)
Title: 缺陷检测/处理方法和装置
Inventor: GAO YU
IPC: G06F16/23
Filed: 2020-04-01
Abstract: 缺陷检测方法和装置，缺陷处理方法和装置。其中，缺陷检测方法包括：确定分布式系统中具有原子性关系的多个共享数据处理操作的执行轨迹（S101）；根据所述执行轨迹确定候选的失效原子性缺陷（S103）；运行所述分布式系统，并将与所述候选的失效原子性缺陷对应的节点失效注入至所述分布式系统（S105）；获取运行所述分布式系统后的与所述失效原子性缺陷相关的多个共享数据（S107）；若所述多个共享数据不一致，则确定所述失效原子性缺陷（S109）。采用这种处理方式，使得通过观察分布式系统的一次正确执行，无需注入节点失效，即可预测可能的原子性违反错误，并通过最后重放工作负载，注入节点失效，确定性地确认缺陷、重放缺陷；因此，可以有效检测出失效原子性缺陷，从而提升分布式系统的可靠性。
Patent WO-2020211687-A1 (WO)
Inventor: WANG YU
IPC: H04W36/00
Filed: 2020-04-08
Abstract: L'invention concerne un procédé d'indication pour mesure de transfert intercellulaire, ainsi qu'un dispositif de réseau et un terminal associés, mis en oeuvre pour améliorer la fiabilité et les performances en temps réel de transfert intercellulaire. Dans le procédé d'indication pour mesure de transfert intercellulaire : un dispositif de réseau calcule un moment de mesure de transfert intercellulaire en fonction d'un événement de mesure, et envoie une indication de mesure, l'événement de mesure se rapportant à une relation de position entre un terminal et le dispositif de réseau, et l'indication de mesure indiquant que le terminal effectue une mesure de transfert intercellulaire. Une indication de mesure envoyée par le dispositif de réseau peut être un moment de mesure notifiant un terminal de transfert intercellulaire.
Patent WO-2020238421-A1 (WO)
Inventor: DAI XIAOGUO
IPC: A61C17/20
Filed: 2020-04-08
Abstract: Disclosed are an acoustic wave type electric cleaning and care tool and a pressure warning device for same. Upper and lower bearings (33, 34) are respectively fixed on a drive shaft (37) of the tool, the upper bearing (33) is fixed in left and right supports (5, 7) of a transducer (3) by means of an upper bearing fixing face (75) and is stationary relative to the upper bearing fixing face (75), the lower bearing (34) is fixed in the left and right supports (5, 7) of the transducer (3) by means of a lower bearing upper fixing face (73), and the lower bearing (34) is capable of performing a relative movement relative to the lower bearing upper fixing face (73) or a lower bearing lower fixing face (76) such that the lower bearing (34) is separated from or comes into contact with the lower bearing upper fixing face (73); and the warning device comprises a lever (32), a light-emitting element (112) and a photosensitive element (111), the lever (32) is provided with a shielding face (325) and/or a light-shielding protrusion (327), light energy received by the photosensitive element (111) is changed by virtue of a clearance change between the shielding face (325) and/or the light-shielding protrusion (327) and the photosensitive element (111), and changes in corresponding electrical performance parameters of the photosensitive element (111) are measured, so that loading pressure applied to a cleaning element (21) is acquired, and a pressure warning is realized.
Patent WO-2020220986-A1 (WO)
Title: Packet processing method, device, and apparatus
Inventor: LIU SHUO
IPC: H04L29/06
Filed: 2020-04-14
Abstract: An embodiment of the present application provides a packet processing method. A first node transmits to a second node a first packet carrying target data, an identifier of the target data, and a first forwarding instruction. After receiving the first packet, the second node forwards, according to the first forwarding instruction, the first packet to a third node, and stores the target data and a mapping relationship between the identifier of the target data and the target data. When the first node transmits the target data to a fourth node, the target data does not need to be transmitted to the second node, and instead, a second packet carrying the identifier of the target data and a second forwarding instruction is transmitted to the second node. After the second node receives the second packet, according to the second forwarding instruction and the identifier of the target data, the target data corresponding to the identifier of the target data is added in the second packet, and the second packet carrying the target data is transmitted to the fourth node, thereby effectively reducing a bandwidth required for data transmission between the first node and the second node.
Patent WO-2020211865-A1 (WO)
Inventor: ZHANG KAI
IPC: H04N19/157
Filed: 2020-04-20
Abstract: A video processing method is provided to include determining, for a current video block of a video, a final prediction block for the current video block by refining one or more initial predictions for the current video block using an optical flow calculation based on a gradient of initial prediction samples according to a precision rule; and performing a conversion between the current video block and a coded representation using the final prediction block, wherein the optical flow calculation includes a prediction refinement with optical flow (PROF) procedure or a bi-directional optical flow (BDOF) procedure, wherein the precision rule specifies to use a same precision for representing the gradient for both the PROF procedure and the BDOF procedure.
Patent WO-2021062997-A1 (WO)
Inventor: XU JING
IPC: H04W72/04
Filed: 2020-04-23
Abstract: 本发明公开了一种信号传输方法、装置、移动终端以及存储介质，属于通信技术领域。本方案在传输资源存在冲突的情况下，根据所述传输配置信息和资源指示信息确定在所述第一时频资源中信号处理的起始位置和/或结束位置，可根据在所述第一时频资源中的起始位置和/或结束位置对第一业务信号进行信号处理，避免了第一业务信号和第二业务信号之间的相互干扰，能够在保证信号传输正确的情况下，有效解决URLLC和eMBB的上行传输冲突的问题，提高了资源使用效率。
Patent WO-2021217583-A1 (WO)
Title: 功率控制方法、用户设备、基站及计算机可读存储介质
Inventor: HONG WEI
IPC: H04W72/04
Filed: 2020-04-30
Abstract: 本公开实施例提供了一种功率控制方法、用户设备、基站及计算机可读存储介质。该方法包括：用户设备确定各载波分别对应的参考信号接收功率RSRP，然后用户设备基于各载波分别对应的RSRP，确定满足第一预设条件的载波，满足第一预设条件的载波为产生镜像干扰的载波，然后用户设备将满足第一预设条件的载波对应的指示信息上报至基站，以使得基站调整满足第一预设条件的载波的发射功率，然后基站接收用户设备UE发送的满足第一预设条件载波对应的指示信息，并基于指示信息调整满足第一预设条件的载波的发射功率。
Patent WO-2020238687-A1 (WO)
Inventor: GE JUNMIN
IPC: D01D5/096
Filed: 2020-05-18
Abstract: The present invention belongs to the technical field of polymeric fiber production, and particularly relates to a method for preparing a high-strength flame-retardant dacron industrial yarn. The method involves selecting a polymeric phosphorus flame retardant as a component A, mixing component A with common PET chips, such that the mass ratio of component A in the raw material after the mixing is 5-10%, subjecting the mixed materials to solid phase tackifying to achieve an intrinsic viscosity of 1.0-1.20 dl/g, and spinning the mixed material using controlled temperature conditions, winding speeds and the like, so as to obtain the high-strength flame-retardant dacron industrial yarn. The industrial yarn produced has excellent friction resistance and cohesion, can greatly reduce broken filaments during elongation and post-weaving processes, has a high strength, is halogen-free and environmentally-friendly, has good flame-retardant performance, and low filament breakage when spinning.