baber/WOPTO huggingface dataset:
Patent TW-I742557-B (TW)
Title: Breath resistant insertion type breath training device
Inventor: WU YU-TANG
IPC: A61F5/56
Filed: 2020-03-09
Granted: 2021-10-11
Abstract: A breath resistant insertion type breath training device includes a main body defining a division line and having a first and a second end portions. The first end portion is inserted in the nasal cavity and provided with an opening. The second end portion has an inlet channel and an out let channel passing therethrough and separated by the division line and connected with the opening respectively. An inflow resistance valve body is disposed in the inlet channel for resisting the airflow during the inhaling motion, such that the airflow is guided from the inlet channel to the opening to enter the nasal cavity. An outflow resistance valve body is disposed in the outlet channel for resisting the airflow during the exhaling motion, such that the air flow is guided from the opening to the outlet channel to exit.
Patent TW-I750623-B (TW)
Inventor: WANG WEI-CHENG
IPC: G06F1/3206
Filed: 2020-03-31
Granted: 2021-12-21
Abstract: A power mode management system includes plural connection interfaces, a system power, and a power managing circuit. Each connection interface is respectively connected to one of plural power consumption devices to perform signal and power transmissions. The system power includes plural power supply units. The system power supplies power to each power consumption device via the corresponding connection interface. The power managing circuit is connected to each power consumption device via each connection interface. The power managing circuit obtains a current total load of the plural power supply units, determines a target load of each power supply unit, and determines whether each connection interface is connected to one of the plural power consumption device. The power managing circuit turns off the power supply to the connection interface which is not connected to one of the plural power consumption device. According to the current total load and the target load, the power managing circuit determines the number to enable power supply units, and turns on and turns off each of the power supply units according to the number.
Patent TW-I732530-B (TW)
Inventor: SONG KUN HO
IPC: H05K3/06
Filed: 2020-04-20
Granted: 2021-07-01
Abstract: 本發明涉及一種基板配線形成方法，具體來說，涉及一種基板側面部配線形成方法，此方法係透過光刻製程在基板側面部形成基板側面部配線。藉此，可以輕鬆且精密地形成側面部電路圖案以電連接上部電路圖案與下部電路圖案，並且可以提供具有提高的電特性的基板。
Patent TW-I756734-B (TW)
Inventor: JIN XIN
IPC: G06Q30/00
Filed: 2020-07-10
Granted: 2022-03-01
Abstract: Methods and systems for dynamic IP categorization include 
receiving electronic requests to access an electronic server; logging a first set of requests occurring during a first period of time and originating from an IP address belonging to a set of IP addresses; assigning the set of IP addresses to a first category according to the first set of requests; logging a second set of requests occurring during a second period of time and originating from the first IP address or a second IP address belonging to the set of IP addresses; 
determining a second category according to the second set of requests; assigning the set of IP addresses to the second category when the first category and the second category differ; and providing a response to a requesting IP address based on the category associated with the set of IP addresses to which the requesting IP address belongs.
Patent TW-I794621-B (TW)
Title: 虛實整合建模系統及方法
Inventor: Zhang deng-wen
IPC: G02B27/02
Filed: 2020-07-15
Granted: 2023-03-01
Abstract: 一種虛實整合建模系統，包括混合實境裝置、伺服器及製造裝置。混合實境裝置用以穿戴於使用者的頭部，使用者藉由混合實境裝置建構模型資訊。伺服器與混合實境裝置連線，並且包括模型資料庫；伺服器接收模型資訊，並且將模型資訊儲存於模型資料庫中。製造裝置與伺服器連線，從伺服器獲取模型資訊，並且根據模型資訊製造出模型實體。藉此，本發明的虛實整合建模系統能夠透過虛實整合的方式製造出模型實體，具有成本低、時間短、效率高等優點。
Patent TW-I776250-B (TW)
Title: 模組化運動裝置
Inventor: WILLARDSON JARED
IPC: A63B21/00
Filed: 2020-10-08
Granted: 2022-09-01
Abstract: 一種基礎鍛煉裝置，包括至少一個模組連結。基礎鍛煉裝置無需任何模組單元連結到模組連結器之一就可操作。模組單元可以物理地連結至基礎鍛煉裝置。模組單元包括基礎鍛煉裝置中不包括的至少一個鍛煉特徵。
Patent TW-I748709-B (TW)
Title: Contact structure, electronic device, and method for manufacturing contact structure
Inventor: Lin zhi-qiang
IPC: H05K1/02
Filed: 2020-10-26
Granted: 2021-12-01
Abstract: A contact structure is provided, which includes a substrate, a copper layer, an organic composite protective layer, and a silver nanowire layer. The copper layer is disposed on the substrate. The organic composite protective layer is disposed on the copper layer to avoid oxidation of the copper layer, wherein the organic composite protective layer forms a monomolecular adsorption layer on the surface of the copper layer. The silver nanowire layer is disposed on the organic composite protective layer. A method for manufacturing a contact structure is also provided.
Patent TW-I774155-B (TW)
Title: 狀態輸出系統
Inventor: MUNAKATA ICHIRO
IPC: H01M10/48
Filed: 2020-12-14
Granted: 2022-08-11
Abstract: [課題]提供能夠適時地輸出對使用者而言充足的內容的充電電池的劣化狀態的充電電池的狀態輸出系統。
[解決手段]本發明的狀態輸出系統為輸出搭載於使用者使用的使用者裝置的充電電池的劣化狀態的系統，具備：判定充電電池的最近的劣化狀態從傾向逸脫時，基於表示充電電池到該最近的時點為止如何使用的資訊決定表示詳細的充電電池的劣化狀態的詳細劣化狀態，輸出最近的劣化狀態及詳細劣化狀態的輸出部。
Patent TW-I763309-B (TW)
Title: 脫標機
Inventor: YANG JIA-ZHANG
IPC: B08B9/38
Filed: 2021-02-09
Granted: 2022-05-01
Abstract: 一種脫標機，包含有一底座組(10)；一驅動組(20)，設在該底座組(10)；一內轉組(30)，設在該底座組(10)；該內轉組(30)具有一轉軸(31)受該驅動組(20)轉動，該轉軸(31)有一軸心，一載筒(32)設於該轉軸(31)，一筒外圓周(34)形成於該載筒(32)；多個第一刀組(40)，設於該內轉組(30)的筒外圓周(34)，該各第一刀組(40)具有一第一刀件(42)；一外筒組(50)，設在該底座組(10)；該外筒組(50)具有一第一殼體(51)有一筒內圓周(53)有一圓心，一入口(55)，以及一出口(56)；其中，該外筒組(50)的筒內圓周(53)的圓心與該內轉組(30)的轉軸(31)的軸心呈偏心。
Patent TW-I764581-B (TW)
Title: Memory check method, memory check device and memory check system
Inventor: TSENG CHIEN CHANG
IPC: G06F8/60
Filed: 2021-02-22
Granted: 2022-05-11
Abstract: A memory check method, a memory check device and a memory check system are disclosed. The method includes: generating a debug file according to a source code, wherein the debug file carries symbol information related to a description message in the source code; receiving memory data generated by the memory storage device which executes the firmware; loading the debug file to automatically analyze the memory data; and presenting an analyzing result by an application program interface, wherein the analyzing result reflects a status of the firmware with assistance of the symbol information .
Patent TW-I776418-B (TW)
Inventor: LEVY MARK D
IPC: H01L31/0256
Filed: 2021-03-09
Granted: 2022-09-01
Abstract: The present disclosure relates to semiconductor structures and, more particularly, to an avalanche photodiode and methods of manufacture. The structure includes: a substrate material having a trench with sidewalls and a bottom composed of the substrate material; a first semiconductor material lining the sidewalls and the bottom of the trench; a photosensitive semiconductor material provided on the first semiconductor material; and a third semiconductor material provided on the photosensitive semiconductor material.
Patent TW-I753832-B (TW)
Title: 能穩定傳動的雨(雪)刷
Inventor: HE GUO-ZHI
IPC: B60S1/16
Filed: 2021-05-20
Granted: 2022-01-21
Abstract: 一種能穩定傳動的雨(雪)刷，其包括一雨刷片、一固接座以及一接頭座，該固接座固設在該雨刷片上，該接頭座係可拆卸地裝設在該固接座，該接頭座具有一軸桿設置部與一安裝軸桿，該軸桿設置部延伸形成在該接頭座的相對兩端之間，該安裝軸桿形成在該軸桿設置部上。本發明之能穩定傳動的雨(雪)刷在雨刷臂透過該接頭座和固接座帶動該雨刷片在擋風玻璃上來回擺動時，該接頭座和固接座能彷彿一體成形之構件般穩固且穩定的相互傳動，從而減少噪音，並使接頭座和固接座的各部位均勻受力，達到減少變形、損壞的效果。
Patent TW-I794839-B (TW)
Title: 積層鐵芯之製造方法
Inventor: TANAKA ICHIRO
IPC: H01F41/02
Filed: 2021-06-17
Granted: 2023-03-01
Abstract: 本發明之積層鐵芯之製造方法，係藉由將具備絕緣被膜之電磁鋼帶沖裁加工而獲得鐵芯單板，並藉由積層前述鐵芯單板來製造積層鐵芯之方法；在即將進行前述沖裁加工前，使用導引滾筒加壓2片以上的電磁鋼帶，藉此進行暫時接著，在將前述暫時接著後之前述2片以上的前述電磁鋼帶插入沖裁模具後，進行前述沖裁加工，藉此獲得前述鐵芯單板。
Patent TW-I785729-B (TW)
Inventor: CHANG SHEN CHANG
IPC: G06K9/62
Filed: 2021-08-10
Granted: 2022-12-01
Abstract: 本發明涉及母豬發情智慧系統及方法，處理模組經由檢測外陰的腫脹區域測量的體積，並與該母豬發情前的另一個發情前時間點分析，評估是否超過閾值。母豬發情預警之智慧監測系統不僅可以有效降低人工成本，可以及時發現母豬的發情或陰部腫脹差異性，因此，本系統可以協助提高母豬發情時的交配率。藉由母豬發情的智慧檢測系統，提高傳統的母豬發情檢測系統的準確性。
Patent TW-I804006-B (TW)
Title: L-草銨膦的製備方法
Inventor: LIU YONGJIANG
IPC: A01N57/20
Filed: 2021-10-14
Granted: 2023-06-01
Abstract: 本發明涉及L-草銨膦的製備方法。
Patent TW-I782819-B (TW)
Title: 靜電吸盤及處理裝置
Inventor: TAKABATAKE TAKESHI
IPC: C23C4/18
Filed: 2021-12-15
Granted: 2022-11-01
Abstract: 一種靜電吸盤，為約翰遜-拉貝克力型的靜電吸盤，具有金屬基材、隔著絕緣層而設置於所述金屬基材上的靜電吸附用電極、以及構成與被處理體相接觸的靜電吸附面的介電層，所述靜電吸盤中，所述介電層包含陶瓷噴鍍皮膜與填充至所述陶瓷噴鍍皮膜的氣孔內的封孔成分，所述封孔成分包含含有稀土元素的金屬有機酸鹽。
Patent TW-I799081-B (TW)
Inventor: MIELKE FRANK
IPC: G01R31/26
Filed: 2022-01-14
Granted: 2023-04-11
Abstract: 本發明描述一種用於測試組件的設備。設備被配置為針對一組B磁場導向，將源於所述組B磁場導向之具有B磁場導向的B磁場施加至組件。設備被配置為在存在所述相應B磁場的情況下執行組件的測試，以獲得描述組件的操作的資訊。設備被配置為基於有關於所述不同的B磁場之描述組件的操作的資訊來確定測試結果。本發明還描述一種測試方法和一種實施所述方法的電腦程式，以及一種包括用於測試組件的設備的測試裝置。 本發明提供一種在可靠性和成本方面更有效的測試概念。
Patent TW-I796962-B (TW)
Title: Wireless charger
Inventor: HSIAO CHI-CHENG
IPC: H05K7/20
Filed: 2022-03-02
Granted: 2023-03-21
Abstract: A wireless charger is configured to charge a mobile device and to be connected to an air conditioner. The wireless charger includes a casing, a wireless charging module, and a valve assembly. The casing includes a first accommodation space, a second accommodation space, and an air inlet. The first accommodation space is in fluid communication with the second accommodation space. The first accommodation space is configured to accommodate the mobile device. The air inlet is in fluid communication with the first accommodation space and the second accommodation space. The wireless charging module is accommodated in the second accommodation space and is configured to charge the mobile device. The valve assembly is mounted to the air inlet and is configured to be connected to the air conditioner.
Patent TW-I802412-B (TW)
Title: 容器及容器組合體
Inventor: OGAWA TETSURO
IPC: B65D21/02
Filed: 2022-05-16
Granted: 2023-05-11
Abstract: 提供一種就算是在進行使用有高壓氣體之液體之壓送時容器之內壓成為高壓力，也能夠顯著地抑制起因於送液裝置所導致的容器支持具乃至於容器之變形，而能夠進行安定之送液，並且也具有能夠安置在並不具有容器支持具之送液裝置處地來作使用的高泛用性之容器以及容器組合體。
        容器(10)，係具備有：本體部(12)，係成為略圓筒形；和筒口(11)，係於本體部(12)之其中一端而開口；和階差部(13)，係與本體部(12)之另外一端相連續並且作了縮徑；和圓底部(15)，係與階差部(13)相連續並且以從該處而分離的方式來作了膨脹，在階差部(13)處，係被間歇性地形成有複數之凹部(14)，該些複數之凹部(14)，係於不會與涵蓋本體部(12)、階差部(13)以及圓底部(15)之一連串的分模線相重疊的位置處而凹陷，並且被與用以使容器自立之支持台之爪部作卡合。
Patent TW-I802450-B (TW)
Title: 馬達
Inventor: HSIAO CHIA-HSIANG
IPC: H02K11/21
Filed: 2022-06-24
Granted: 2023-05-11
Abstract: 本發明揭露一種馬達，其包含：馬達主體及位置感測裝置。馬達主體包含定子、轉子及外殼體。定子的心軸包含第一連接結構。位置感測裝置包含磁鐵模組及偵測模組。磁鐵模組包含連接組件及感應磁鐵。連接組件包含連接座及鎖固件。連接座包含第二連接結構，第二連接結構用以與第一連接結構相互卡合。連接座通過鎖固件與心軸固定。偵測模組包含座體組件及電路組件。座體組件可拆卸地設置於外殼體。電路組件可拆卸地與座體組件相連接。當心軸旋轉時，連接座及感應磁鐵，將隨心軸旋轉，而電路組件的感測器將感測感應磁鐵，以對應產生位置感測訊號。
Patent ZA-200003512-B (ZA)
Title: Polyurethane and preparation containing polyurethane.
Inventor: KLAUCK WOLFGANG
IPC: C08L75/08
Filed: 2000-07-13
Abstract: A polyurethane is produced by reacting at least components A and B, where a) a polyisocyanate or mixture of polyisocyanates is used as component A and b) a polyol or mixture of polymer is used as component B. Component B contains at least one polyether having a number average molecular weight of at least 4000 and a polydispersity of less than 1.5 and/or an OH functionality of between about 1.8 and about 2. Preparations containing such polyurethanes are useful as adhesives, coatings and sealants.
Patent ZA-200101148-B (ZA)
Title: Acoustical open-cell polyolefins and process for making.
Inventor: PARK CHUNG P
IPC: C08J9/38
Filed: 2001-02-09
Abstract: Thermoplastic polymer foams having sound deadening properties satisfactory for demanding applications are provided which have mechanical strength, which are economical to manufacture, and which are hydrolytically stable.  Methods of preparing these foams are also provided. The foams are useful in sound management, cushion packaging, filtering, and fluid absorption and exhibit one or more of the following proprties: 1) average cell size greater than about 2 mm; 2) substantially open-cell structure and 3) relatively large pores connecting the cells. In order that the foam be acoustically active, the foam should possess a substiantially open-cell structure and a relatively low airflow resistivity. Foams with substantially open-cell structure and relatively low airflow resistivity are prepared by mechanically opening a foam having an average cell size greater than about 2 mm. In most cases, such mechanical opening creates relatively large pores connecting the cells.
Patent ZA-200106023-B (ZA)
Title: Catalytic air cathode for air-metal batteries.
Inventor: SHUN YOU-KEUNG
IPC: H01M12/08
Filed: 2001-07-23
Abstract: An air cathode for use in an electrochemical cell or battery having an air permeable and water impermeable layer, an electrically conductive middle layer and a catalytic layer comprising a mixture of carbon particles, particulate materials, having a high surface area, metal hydroxides, and hydrophobic particles.
Patent ZA-200300228-B (ZA)
Title: Improvements in and relating to respiratory apparatus.
Inventor: MILLER DONALD MUNRO
IPC: A61M16/04
Filed: 2003-01-09
Abstract: An artificial airway device ( 10 ) of a resilient material for use as a combined obturator and airway device without penetration into a larynx comprising a pre-formed flexible saccular chamber ( 14 ) and having a semi-rigid hollow stem ( 14 ) projecting from a position at or near one end of the chamber at an obtuse angle and capable of being flexed into a curve that deviates up to 90 degrees from the longitudinal axis of the said chamber, the chamber being provided with one or more openings, and dimensioned and arranged so that in use the chamber is adapted to sealingly engage in a patient's pharynx with at least one opening in communication with the patient's laryngeal inlet and the stem extends into or through the patient's mouth for connection to a breathing circuit.
Patent ZA-200302351-B (ZA)
Title: Mixed raster content files.
Inventor: BURGESS HENRY W
IPC: G06K9/00
Filed: 2003-03-26
Abstract: A system and process for generating and using mixed raster content files is described. MRC files may be created directly from an application, rather than being processed from a composite image, to separate a single image into background, foreground, and selection masks for each page. Also, an improved MRC structure is described in which only relevant portions are contained in background, foreground, and selection layers for each page. <IMAGE>
Patent ZA-200404291-B (ZA)
Title: Process for the purification and/or isolation of biologically active granulocyte colony stimulating factor.
Inventor: VLADKA GABERC POREKAR
IPC: A61P37/04
Filed: 2004-06-01
Abstract: The invention relates to the process for the isolation of biologically active granulocyte colony stimulating factor (G-CSF), which enables the separation of correctly folded biologically active monomeric molecules of G-CSF from the incorrectly folded, biologically inactive monomeric, oligo- or polymeric and also from aggregated molecules of G-CSF by using immobilised metal affinity chromatography. The process of the invention, if desired the whole process, can be advantageously performed under native conditions. The biologically active G-CSF with a purity of greater than 95% is thus obtained. Only two additional chromatographic steps, cationic exchange chromatography and gel filtration, are then preferably applied to remove the traces of impurities. The entire process results in the production of higher yields of G-CSF with a purity of greater than 99%. The described process is particularly suitable for the industrial production of G-CSF.
Patent ZA-200501683-B (ZA)
Title: Fluid operated pump
Inventor: MORRISS GORDON LEITH
IPC: F04B/
Filed: 2005-02-25
Abstract: Disclosed is a pumping system comprising a pump having a rigid outer casing defining an interior space and a tube structure in the interior space, the tube structure being flexible and substantially inelastic. The interior of the tube structure defines a pumping chamber for receiving pumped fluid. The tube structure is movable between laterally expanded and collapsed conditions thereby providing discharge and intake strokes. The pumping chamber receives pumped fluid to cause the tube structure to move towards the expanded condition and undergo an intake stroke. The pumping chamber—undergoes a discharge stroke upon collapsing of the tube structure. The pumping system also comprises a delivery means and a supplying means for delivering pumped fluid to the pumping chamber and for supplying actuating fluid to an actuating region around the tube structure in timed sequence to cause the tube structure to undergo discharge and intake strokes.
Patent ZA-200507815-B (ZA)
Title: Fluoropolymer dispersion containing no or little low molecular weight fluorinated surfactant
Inventor: DADALAS MICHAEL C
IPC: C08L27/18
Filed: 2005-09-27
Abstract: In an aspect of the invention, a fluoropolymer dispersion, preferably a PTFE dispersion, is provided that comprises fluoropolymer particles having an average particle size of 10 to 400nm dispersed in water whereby the dispersion has an amount of solids between 35 and 70% by weight. The dispersion is free of fluorinated surfactant having a molecular weight of less than 1000g/mol (hereinafter called low molecular weight fluorinated surfactant) or contains the low molecular weight fluorinated surfactant in an amount of not more than 0.05% by weight based on the total weight solids of the dispersion. The dispersion further comprises a non-ionic non-fluorinated surfactant or mixture of non-ionic non-fluorinated surfactants and one or more non-fluorinated anionic surfactants. Through the use of a non-fluorinated anionic surfactant, a dispersion is obtained that has a low viscosity at room temperature (20 DEG C). The dispersion is further free of aromatic group containing non-ionic surfactants and is accordingly environmentally more friendly and can yield coatings that are less susceptible of discoloration. The amount and nature of the non-ionic non-fluorinated surfactant or mixture of non-ionic non-fluorinated surfactants is selected such that the Viscosity Transition Temperature (VTT) (measured as set forth in the examples) of the fluoropolymer dispersion is at least 26, preferably at least 28 DEG C. In a further aspect of the invention, a method is provided to obtain the aforementioned dispersion.
Patent ZA-200508901-B (ZA)
Title: Method for the connection of rails by friction welding
Inventor: PFEILER JOHANN
IPC: B23K20/12
Filed: 2005-11-03
Abstract: The method involves heating rail ends to a joining temperature by pressing together faces of rails end. The rails are simultaneously moved relative to one another in an oscillating manner with greatest oscillation amplitude. The rail ends are aligned by aligning one of the contours and cross-sections of the rails. The faces are pressed together to join the rails together. The rails have railroad rails or beams.
Patent ZA-200603798-B (ZA)
Title: Liquid-filled confectionery composition
Inventor: BOUDY FRANCOIS
IPC: A23G3/00
Filed: 2006-05-12
Abstract: A liquid-filled confectionery composition ( 10 ), comprising a liquid-containing core ( 11, 12 ), an outer layer of confectionery coating ( 14, 15 ), and an intermediate protective layer ( 13 ) between the core ( 11, 12 ) and outer layer ( 14, 15 ). The liquid-containing core consists of a liquid ( 11 ) contained within a water soluble or biodegradable matrix ( 12 ). The edible water impermeable intermediate layer ( 13 ) is applied in alcohol and prevents the movement of water between the core ( 11, 12 ) and the outer layer ( 14, 15 ), thereby preventing the core ( 11, 12 ) from drying out.
Patent ZA-200803382-B (ZA)
Title: Weather-resistant epoxy resin system
Inventor: CHRISTIAN BEISELE
IPC: C08K/
Filed: 2008-04-16
Abstract: A curable epoxy resin composition of an epoxy resin (a) and a combination (b) of an antioxidant (b1) and a UV absorber (b2). The UV absorber (b2) is a benzotriazole. The antioxidant (b1) is a compound of general formula I: wherein: R1=-H, -OH, -O-C1-18 alkyl, -C1-18 alkyl, -C5-12 cycloalkyl being unsubstituted or being substituted with C1-6 alkyl or C1-6 alkoxy, or -CH2-C5-12 cycloalkyl being unsubstituted or being substituted with C1-6 alkyl or C1-6 alkoxy; R2,3,4,5=independent from each other -C1-6 alkyl; and R6=a bivalent aliphatic, cycloaliphatic or aromatic residue. The weight ratio of (a) to (b) is from 90.0:10.0 to 98.5:1.5, with the proviso that the weight portion of (b1) is at least 0.5. The cured product has very good weather resistance after curing by polyaddition with a polycarboxylic acid anhydride or by homopolymerization. The cured product is suitable as an electrical insulation material.
Patent ZA-200809161-B (ZA)
Title: Protein-enriched frozen dessert
Inventor: BOVETTO LIONEL JEAN RENE
IPC: A23L23/00
Filed: 2008-10-24
Abstract: The present invention relates to nutritionally balanced frozen desserts, in particular to pasteurised frozen dessert having a high protein content and to a method for manufacturing them. Whey protein micelles, concentrates thereof and/or powders thereof can be used in the manufacture of frozen dessert.
Patent ZA-201001345-B (ZA)
Title: Cleaning device for separating dilactide from substance mixtures, polymerisation device, method for separating dilactide from substance mixtures and use thereof
Inventor: HAGEN RAINER
IPC: B01D/
Filed: 2010-02-24
Abstract: Cleaning device (1) for the separation of a biodegradable, intermolecular cyclic diester of an alpha -hydroxycarboxylic acid (I) from material mixtures containing (I) and corresponding alpha -hydroxycarboxylic acid (II), comprises head side having at least one dephlegmator (2) and at least one outlet (3); at least one material exchange packet (4); a partition wall column (5), which is divided into two zones by a vertical partition wall (6); sump side having at least one evaporator and at least one outlet. Cleaning device (1) for the separation of a biodegradable, intermolecular cyclic diester of an alpha -hydroxycarboxylic acid compound of formula (I) from material mixtures containing (I) and corresponding alpha -hydroxycarboxylic acid compound of formula (II), comprises head side having at least one dephlegmator (2) and at least one outlet (3); at least one material exchange packet (4), which at least partially fills the diameter of the device; a partition wall column (5), which is divided into two zones by a vertical partition wall (6), where: each zone (7, 8) has at least two material exchange packets (9), which are separated from each other by a space (10), the first zone (7) (prefractioning zone) has at least an inlet (11) for feeding the material mixture and the second zone (8) (main fractioning zone) has at least one side outlet (12) for taking out the cleaned product, and to which the inlet and outlet each in the area of at least one space are arranged, at least a further material packet (13), which at least partially fills the diameter of the device; and sump side having at least one evaporator and at least one outlet, where the length ratio of the partition wall column to the total length of the cleaning device is 0.5-0.9. R : H or 1-6C-aliphatic residue. Independent claims are included for: (1) a polymerization device for the polymerization of (I) comprising the cleaning device; and (2) the separation of (I) from the material mixture containing (II) comprising feeding of the material mixture into the partition wall column containing cleaning device, where the cleaning device has at least one side outlet, separating the material mixture, where the acid of (II) gets accumulated in gas form aggregate condition, and extracting the cleaned (I) through at least one side outlet. [Image].