baber/WOPTO huggingface dataset:
Patent TW-I796705-B (TW)
Inventor: OSTEROD FRANK
IPC: C08K5/49
Filed: 2021-06-10
Granted: 2023-03-21
Abstract: 本發明係關於含磷阻燃劑混合物，其包含於各情況中具有一或多個式(I)、(II)及(III)之官能基的個別阻燃劑，
     
其中，以該阻燃劑混合物中之官能基的總量為基準計，存在1至98mol%之式(I)之官能基、1至35mol%之式(II)之官能基及1至98mol%之式(III)之官能基，以及其中，R 1 及R 2 係相同或不同且彼此獨立地為氫、直鏈或支鏈C 1 -至C 12 -烷基、環戊基、環戊基乙基、環己基、環己基乙基、及/或C 6 -至C 18 -芳基，且(I)、(II)及(III)整體始終為100mol%。
Patent TW-I788899-B (TW)
Title: 款項轉移系統
Inventor: LI CHING-FEI
IPC: G06Q20/08
Filed: 2021-06-30
Granted: 2023-01-01
Abstract: 一種款項轉移系統包含輸入裝置、第一驗證裝置、第二驗證裝置、授權確認裝置及款項轉移執行裝置。輸入裝置用於取得款項轉移要求、指定付款方資訊及指定受款方資訊。第一驗證裝置判斷指定受款方資訊是否符合對應於指定付款方資訊的多個約定受款方資訊中的一者，若是則依據符合約定受款方資訊及款項轉移要求產生執行指令，若否則觸發第二驗證裝置以判斷符合指定受款方資訊的用戶資訊並據以輸出授權請求。授權確認裝置在判斷對應的授權回覆指示同意時，依據符合用戶資訊及款項轉移要求產生執行指令。款項轉移執行裝置依執行指令進行款項轉移。
Patent TW-I786733-B (TW)
Title: 半導體記憶裝置
Inventor: DATE HIROKI
IPC: G11C16/10
Filed: 2021-07-15
Granted: 2022-12-11
Abstract: 一實施方式提供一種能夠削減寫入動作時之峰值電流之半導體記憶裝置。  一實施方式之半導體記憶裝置2具有複數個記憶胞MT、連接於記憶胞MT之閘極之字元線WL、及產生供給至字元線WL之電壓之電壓產生電路281。又，該半導體記憶裝置2亦具有定序器27，該定序器27執行寫入序列，對記憶胞MT寫入特定資料，該寫入序列係反覆進行由對記憶胞MT寫入資料之編程動作、及檢驗寫入至上述記憶胞MT之上述資料之驗證動作之集合所構成的複數個循環。定序器27對電壓產生電路281指示供給至字元線WL之電壓之設定值，根據循環之位置來變更驗證動作開始時之設定值即最初之中間設定值。
Patent TW-I769074-B (TW)
Title: A method of managing electric vehicle charging based on blockchain
Inventor: YANG HONG-TZER
IPC: G06Q30/00
Filed: 2021-09-01
Granted: 2022-06-21
Abstract: A method of managing electric vehicle charging based on blockchain is implemented by a blockchain system and includes: obtaining a maximum charge and discharge power of each electric vehicle in each time window to be planned; for each electric vehicle, based on the electric vehicle information corresponding to the electric vehicle, at least one purchase price, at least one bid price, and at least one maximum charging and discharging power, obtaining a charge and discharge power of the electric vehicle in each pane to be planned; determining whether there is at least one overloaded time window based on the total power consumption of the charging station at each time window; when it determined that the at least one overloaded time window exists, the purchase price of each overloaded time window being adjusted, and a charging and discharging power of the electric vehicle in each time window being re-planned until it is determined that the at least one overloaded time window does not exist.
Patent TW-I788990-B (TW)
Title: 立克次體感染的檢測套組和方法
Inventor: SHU PEI-YUN
IPC: C12Q1/689
Filed: 2021-09-02
Granted: 2023-01-01
Abstract: 本揭示內容是關於一種用以檢測立克次體感染的套組，包含一第一引子對和/或一第二引子對，其中該第一引子對係用以檢測一恙蟲東方體( Orientia tsutsugamushi )的 gyrB 基因，並具有序列編號：2和3的引子序列；以及該第二引子對係用以檢測一斑疹傷寒立克次體( Rickettsia typhi )的 ompB 基因，並具有序列編號：6和7的引子序列。可任選地，本揭示內容套組更包含一第三引子對，其係用以檢測一嗜吞噬球無形體( Anaplasma phagocytophilum )的 ankA 基因，並具有序列編號：10和11的引子序列。本揭示內容亦涵蓋一種用以檢測一個體之立克次體感染的方法，包含使用本揭示內容套組內的第一、第二和/或第三引子對，並以聚合酶鏈鎖反應(polymerase chain reaction，PCR)來對該個體的一生物學樣本進行檢測，並基於檢測結果來判斷該個體是否遭受立克次體的感染。
Patent TW-I777826-B (TW)
Title: 用於電源供應電路之具有節電模式的控制電路
Inventor: YANG TA-YUNG
IPC: G05F1/46
Filed: 2021-10-20
Granted: 2022-09-11
Abstract: 一種控制電路，用以控制一電源供應電路以供電予具有一通訊電路的一系統裝置，該控制電路包含：一脈寬調變(PWM, pulse width modulation)控制器，用以切換該電源供應電路的一變壓器而產生一第一輸出電壓；一切換電容式轉換器，用以轉換該第一輸出電壓而產生一第二輸出電壓；其中該第二輸出電壓用以供電予該通訊電路，該通訊電路產生一節電訊號以控制該PWM控制器及該切換電容式轉換器，其中當該節電訊號致能時，該第一輸出電壓降低，且該切換電容式轉換器的一占空比增加。
Patent TW-I811904-B (TW)
Inventor: WANG JENN SHING
IPC: B29B17/00
Filed: 2021-12-20
Granted: 2023-08-11
Abstract: 本發明主要係一種廢標籤之分選方法，係對一廢標籤基材或包含該廢標籤基材的一廢標籤進行分選，該廢標籤包含該廢標籤基材、一印刷層及一色料，該印刷層係覆蓋於該廢標籤基材的表面，且該印刷層係結合該色料，其步驟包含：一浸泡步驟：將該廢標籤或該廢標籤基材浸泡於一氯化鈣溶液，該廢標籤或該廢標籤基材包含不同密度之一聚氯乙烯膜、一聚乙烯對苯二甲酸酯膜及一聚苯乙烯膜。一第一篩選步驟：調整該氯化鈣溶液的密度大於該聚苯乙烯膜，使該聚苯乙烯膜漂浮於該氯化鈣溶液上層。一第二篩選步驟：調整該氯化鈣溶液的密度大於該聚乙烯對苯二甲酸酯膜，使該聚乙烯對苯二甲酸酯膜漂浮於該氯化鈣溶液上層。一篩選完成步驟：完成該廢標籤或該廢標籤基材的分選。
Patent TW-I793987-B (TW)
Inventor: Huang liang-cheng
IPC: B62M6/90
Filed: 2022-01-21
Granted: 2023-02-21
Abstract: A battery containing device is provided. The battery containing device is adapted to receive a battery. The battery containing device includes a frame, a battery container, a second operation member, a battery pushing unit, the battery moving mechanism and a damping unit. The battery container is connected to the frame. The battery is adapted to be disposed in the battery container. The second operation member pivots on the battery container. The battery pushing unit is disposed in the battery container and is adapted to abut the battery. The battery moving mechanism is connected to the second operation member and the battery pushing unit. When the second operation member is rotated, the second operation member moves the battery moving mechanism. The battery moving mechanism moves the battery pushing unit. The battery pushing unit pushes the battery. The damping unit is connected to the battery moving mechanism and the frame. The damping unit is adapted to provide the damping function to the battery moving mechanism.
Patent TW-I805221-B (TW)
Inventor: SHIH HUNG-HSIN
IPC: G02B5/28
Filed: 2022-02-11
Granted: 2023-06-11
Abstract: 本申請實施例涉及增強現實及虛擬實境領域，旨在解決有機濾光片隨著使用過程逐漸裂解從而光波導功效降低的問題，提供光學組件及顯示裝置。其中，光學組件包括第一透光基板、第一耦入光柵、第一耦出光柵以及第一濾光膜。所述第一透光基板用於傳導第一波段的光。所述第一透光基板包括相對的第一表面以及第二表面，所述第二表面包括第一出光區及第二出光區。所述第一濾光膜設置於所述第一出光區，用於濾除所述第一波段的光。所述第一濾光膜包括多層無機膜。
Patent TW-I816312-B (TW)
Title: 帶電粒子束照射系統
Inventor: YAMAGUCHI TAKASHI
IPC: A61N5/10
Filed: 2022-03-02
Granted: 2023-09-21
Abstract: [課題] 提供一種能夠對被照射體適當地照射帶電粒子束之帶電粒子束照射系統。
        [解決手段] 藉由通氣管降能器(30)調整帶電粒子束(B)的半影，能夠抑制在照射部(2)對腫瘤(14)的邊界部附近進行照射時，對腫瘤(14)的外部照射帶電粒子束(B)。在此，保持通氣管降能器(30)之保持部(60)設置於照射部(2)。因此，能夠容易地進行照射到腫瘤(14)之帶電粒子束(B)與通氣管降能器(30)之間的位置對準。因此，在用通氣管降能器(30)而於適當的位置調整半影之狀態下，照射部(2)能夠對腫瘤(14)照射帶電粒子束(B)。在本實施形態中，由於只要將通氣管降能器(30)保持於保持部(60)即可，因此容易進行位置對準。
Patent TW-I812162-B (TW)
Inventor: CHEN HIS-HSIN
IPC: G09B23/02
Filed: 2022-04-13
Granted: 2023-08-11
Abstract: The invention relates to an auxiliary device for mathematical operation logic teaching. When children learn mathematical operations, they perform operations through the operation logic patterns on the board. During the calculation, the blank-filling board carrying the digital pattern is embedded into the corresponding slot, and the signal receiving unit in each slot will detect and return the result to the processor. The processor will determine whether the child's operation is correct according to the detection result. Through the above method, the present invention transforms traditional mathematical operations and learning into puzzle-like fun, so that children can learn mathematics in a relaxed and pleasant 
way, and gain a sense of achievement from it, so as to lay a foundation for mathematics learning.
Patent TW-I790968-B (TW)
Inventor: Chen hong-yu
IPC: G02B9/64
Filed: 2022-05-13
Granted: 2023-01-21
Abstract: The present invention provides an eight-piece imaging lens, which includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens in sequence from an object side to an image side lens. The first lens has negative refractive power, its object side is convex and its image side is concave. The object side of the second lens is concave. The third lens has positive refractive power and its object side is convex. The fourth lens has negative refractive power, and its object side and its image side are both concave. Both the object side and the image side of the fifth lens are convex. Both the object side and the image side of the sixth lens are convex. Both the object side and the image side of the seventh lens are concave. Both the object side and the image side of the eighth lens are convex.
Patent ZA-200103857-B (ZA)
Title: Controller and method for administering and providing on-line handling of deviations in a rotary sterilization process.
Inventor: ZHIJUN WENG
IPC: A23L3/00
Filed: 2001-05-11
Abstract: A rotary sterilization system, a controller for use in the rotary sterilization system, and a method performed by the controller are disclosed. The system, controller, and method are used to administer a sterilization process performed on a line of containers and provide on-line handling of a deviation in a scheduled parameter during the process. The containers contain a shelf stable food product that is to be sterilized in the sterilization process. In addition to the controller, the rotary sterilization system includes a rotary sterilizer. The controller controls the rotary sterilizer in performing the sterilization process according to scheduled parameters. When a deviation in a specific one of the scheduled parameters occurs, the controller identifies those of the containers that will in response have a total lethality predicted to be delivered to them during the sterilization process that is less than a predefined target lethality.
Patent ZA-200203793-B (ZA)
Title: Apparatus and method for cooling power transformers.
Inventor: LONGARDNER ROBERT L
IPC: H01F27/10
Filed: 2002-05-13
Abstract: A system (27) for reducing the temperature of cooling oil for a power transformer (12) includes a heat exchanger (44) interposed in the cooling oil system. The heat exchanger (44) relies upon a liquid-to-liquid exchange of heat from the heated oil to a coolant flowing through the heat exchanger. In one embodiment, the coolant provided to the heat exchanger is obtained from an absorption chiller (65). Heat energy is provided to the chiller (65) from a heat storage device (80). In a specific embodiment, the heat storage source (80) can be a phase change material device. In a preferred cooling system, a programmable controller (55) determines the activation and operation of the system. The controller (55) can sense transformer or cooling oil temperature to trigger activation. In a preferred embodiment, the controller (55) compares a current temperature history against a temperature profile to anticipate increased cooling requirements. In certain embodiment, excess, off-peak or waste heat from the transformer (12) itself is provided to the heat storage device (80) or to the phase change heat exchanger.
Patent ZA-200309121-B (ZA)
Title: Hydroformylation process
Inventor: JAMES ANDREW BANISTER
IPC: C07C/
Filed: 2003-11-24
Abstract: The present invention relates to a continuous hydroformylation process for the production of an aldehyde by hydroformylation of an olefin which comprises: providing a hydroformylation zone containing a charge of a liquid reaction medium having dissolved therein a rhodium hydroformylation catalyst comprising rhodium in combination with carbon monoxide and a ligand; supplying the olefin to the hydroformylation zone; maintaining temperature and pressure conditions in the hydroformylation zone conducive to hydroformylation of the olefin; recovering from the liquid hydroformylation medium a hydroformylation product comprising aldehyde; recovering from the hydroformylation zone a stream comprising the rhodium catalyst; contacting at least a portion of the stream with a solid acidic absorbent under process conditions which allow at least some of the rhodium to become bound to the absorbent; subjecting the rhodium bound to the absorbent, under process conditions which allow desorption of the metal, to a fluid stripping medium comprising hydrogen and solvent; recovering the rhodium hydride catalyst; and recycling the rhodium hydride catalyst to the hydroformylation zone.
Patent ZA-200407016-B (ZA)
Title: Floorboards with decorative grooves
Inventor: PERVAN DARKO
IPC: B27F1/06
Filed: 2004-09-02
Abstract: The system has a surface layer (31) on an upper side of a core (30) and connecting unit (9,10,8,12) placed at the adjoining edges to connect the floorboards with each other. The surface layer has an upper layer (35) and an underlying layer (36a) such that an edge has a surface having the underlying layer parallel to a horizontal plane that is formed by the parts of the surface layer closest to the edges. An independent claim is also included for a method of making a decorative joint portion on a floor board.
Patent ZA-201007261-B (ZA)
Title: Strippable semiconductive composition comprising low melt temperature polyolefin
Inventor: KUNG DOMINIC
Filed: 2010-10-11
Abstract: The present invention relates to a semiconductive polymer composition having easily controllable stripping characteristics, especially for an electric power cable. The semiconductive polymer composition comprises an ethylene copolymer comprising polar co-monomer units, wherein the amount of the polar co-monomer units in the ethylene copolymer is 10 wt.% or more, based on the total weight of the ethylene copolymer; an olefin copolymer comprising propylene monomer units and monomer units of an alpha-olefin having at least 4 carbon atoms, wherein the olefin copolymer has a melting point of 110 °C or less, and carbon black in an amount of from 10 to 50 wt.%, based on the total weight of the semiconductive polymer composition, wherein the olefin copolymer (B) is prepared by using a metallocene polymerisation catalyst. The composition provides improved strippability and enhanced mechanical as well as electrical property profile.
Patent ZA-201805009-B (ZA)
Title: Stable inoculant compositions and methods for producing same
Inventor: GREENSHIELDS DAVE
Filed: 2018-07-25
Abstract: The present disclosure provides non-aqueous inoculant compositions and methods for enhancing the survival and/or stability of microbial spores in an inoculant composition. In some embodiments, inoculant compositions of the present disclosure comprise microbial spores, one or more dispersants, one or more protectants and a non-aqueous liquid carrier.
Patent ZA-202109794-B (ZA)
Title: Vapor phase methanol carbonylation catalyst
Inventor: Jennifer gil
Filed: 2021-11-30
Abstract: The present disclosure provides a catalyst for use in a process for methyl acetate and acetic acid production from renewable methanol and synthesis gas. The catalyst comprises at least a metal as an active site for the vapor phase carbonylation reaction, including those from the group VIII and lanthanides series of the periodic table and could be alone or mixed. The support comprises an activated carbon with a high surface area.
Patent ZA-202202438-B (ZA)
Title: Uniformly-partitioned high-precision sub-reflector device with a two-stage position and pose adjustment function
Inventor: GUOXI LIU
Filed: 2022-02-25
Abstract: The present invention discloses a uniformly-partitioned high-precision sub-reflector device with a two-stage position and pose adjustment function, relating to technical fields of communication, measurement and control, radio astronomy etc. The sub-reflector device of the present invention comprises an adjustment device, a sub-reflector, a single-layer space frame backup structure and a panel precise adjustment device. The adjustment device adopts movable and fixed platforms as a multi-rod six-degree-of-freedom sub-reflector adjustment mechanism for a plane truss to realize a primary pose adjustment of the sub-reflector; the sub-reflector is composed of a polygonal panel and several sectorial panels which are uniformly partitioned; the ratio of the number of inner and outer sides of the single-layer space frame backup structure is 1: 2, so as to provide a structural support for the sub-reflector; and the panel precise adjustment device is used for achieving a secondary pose adjustment of the sub-reflector. This device not only realizes a two-stage position and pose adjustment of the sub-reflector, but also improves the integral stiffness and reduces the overall weight of the sub-reflector, while improving the installation and adjustment efficiency and the adjustment precision.
Patent MX-340005-B (MX)
Title: Molecular iodine composition for human use for the prevention and treatment of prostatic pathologies.
Inventor: CARMEN YOLANDA ACEVES VELASCO
IPC: A61K33/18
Filed: 2010-04-23
Abstract: The invention relates to a pharmaceutical composition for preventing and treating prostatic pathologies in humans such as benign prostatic hyperplasia (BPH) or prostate cancer. The composition is characterised in that it contains between 3 and 10 mg of molecular iodine as the active substance, combined with pharmaceutically acceptable excipients and can be prepared in an oral form (tablets, solution or drops) and in a topical form (gel or delayed release patch). The composition also has a cardioprotector effect when used as an adjuvant with anti-cancer drugs such as anthracyclines.
Patent MX-341750-B (MX)
Title: Particulate, expandable polymer, method for producing particulate expandable polymer, as well as a special use of the obtained foam material.
Inventor: JAN NOORDEGRAAF
IPC: C08J9/00
Filed: 2009-10-05
Abstract: The present invention relates to a particulate, expandable polymer, for example polystyrene (EPS) or polylactic acid (PLA) or a combination thereof, which can be processed to form a foam having a fine cell structure and a low density, and which contains a thermal insulation value-increasing material so as to increase the thermal insulation value thereof The present invention further relates to a method for producing such particulate, expandable polymer, as well as to a foam material
Patent MX-366243-B (MX)
Title: SYSTEM and METHODS FOR ACTUATING REVERSIBLY EXPANDABLE STRUCTURES.
Inventor: JULIO C GUERRERO
IPC: E21B43/10
Filed: 2008-12-18
Abstract: An actuator is provided for reconfiguring a reversibly expandable structure, also referred to as a deployable structure. The deployable structure includes an enclosed mechanical linkage capable of transformation between expanded and collapsed configurations while maintaining its shape. An actuator coupled to the deployable structure provides a load, force, or torque for actuating a transformation. The actuated deployable structure transfers the actuation force to an external body substances, or element in contact with the deployable structure. The force can be directed inwardly or outwardly depending upon direction of the transformation (i.e., expanding or contracting). The force provided by the deployable structure can be used to perform work by its application over at least a portion of the distance traveled by a perimeter of the deployable structure during its transformation.; In some embodiments, the actuatable deployable structure is lockable structure supporting a static load.
Patent MX-341957-B (MX)
Title: Retroreflective articles including optically active areas and optically inactive areas.
Inventor: KENNETH L SMITH *
IPC: B32B3/00
Filed: 2010-04-15
Abstract: This disclosure generally relates to retroreflective articles and methods of making such articles.
Patent MX-347492-B (MX)
Title: Synthetic fluid c14-c19 (fluid based on paraffin hydro-carbides of linear chain with molecular structure of 14 and up to 19 carbons for manufacturing drilling sludge and fracturing fluids used in oil wells).
Inventor: JOSE IVAN MOTA JIMENEZ
IPC: C09K8/82
Filed: 2013-06-18
Abstract: Described is a fluid based on paraffin hydro-carbides, which composition is of 14 and up to 19 carbons with a maximum aromatic content of 0.3% by weight and compatible with the additives for formulating drilling sludge or fluids for fracturing oil wells, since the main characteristics thereof are a high viscosity index, high flaming temperature and a quick integration to the nature, regardless of these characteristics, the invention fulfills the aforesaid functions either for manufacturing drilling sludge or fracturing fluids. The obtention of the inventive fluid results from raw material rich in components of C14 and up to C19, which is brought to a fractioned distillation process, this operation being adjusted according to the quality and composition of the raw material for obtaining exclusively these compounds and then performing the formulation of drilling sludge or fracturing fluids.
Patent MX-337219-B (MX)
Title: Closure piece for a powder syringe, and powder syringe.
Inventor: ROEDLE TILMAN
IPC: A61M5/34
Filed: 2012-02-23
Abstract: A closure piece for a powder syringe (1) is proposed, with a main body (33), a sealing element (35), which is arranged on the main body (33) such that it bears sealingly on a distal opening (9) of a powder syringe (1) when the closure piece (3) is arranged in its closing position on the powder syringe (1), and a channel (45), which passes through the main body (33) and the sealing element (35) and has a proximal end and distal end (47, 49). The closure piece (3) is characterized by a retaining element (51), which is designed and/or can be arranged such that, prior to actuation of the powder syringe (1), movement of powder (27) from a chamber (19) of the powder syringe into the channel (45) is prevented at least substantially, preferably completely, when the closure piece (3) is arranged in its closing position on the powder syringe (1).
Patent MX-347260-B (MX)
Title: Encapsulates.
Inventor: JOHAN SMETS
IPC: A23L27/00
Filed: 2012-08-08
Abstract: The present application relates to encapsulates, compositions, products comprising such encapsulates, and processes for making and using such encapsulates. Such encapsulates comprise a core comprising a perfume and a shell that encapsulates said core, such encapsulates may optionally comprise a parametric balancing agent, such shell comprising one or more azobenzene moieties.
Patent MX-350943-B (MX)
Title: Spunbond nonwoven fabrics.
Inventor: JASON C BRODIL
IPC: D01F8/06
Filed: 2012-10-04
Abstract: The instant invention provides nonwoven fabrics and staple or binder fibres prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0. 970 g/cm3, a melt index (12 ) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw /Mn ) in the range of from 2 to 3.5, and a molecular weight distribution (Mz /Mw ) in the range of from less than 2.
Patent MX-347414-B (MX)
Title: Aldehydes as perfuming ingredients.
Inventor: ROBERT MORETTI
IPC: C07C47/11
Filed: 2013-01-24
Abstract: The present invention relates to an aldehyde of formula (I) in the form of any one of its stereoisomers or a mixture thereof, and wherein each dotted line, independently from each other, represents a single or double bond; n is 0 or 1; R1 represents a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a methyl or ethyl group; and R3, which is a substituent in any of the positions 2 to 6 of the cyclic moiety, represents a hydrogen atom or a methyl or ethyl group, or a CH2 group bridging positions 3 and 6; and its use as perfuming ingredient, for instance to impart odor notes of the aldehyde, lily of the valley type.
Patent MX-363444-B (MX)
Title: Herbicidal composition having improved herbicidal activity.
Inventor: YAMADA RYU
IPC: A01N43/56
Filed: 2013-06-27
Abstract: In order to reduce the environmental load on an area where a herbicide is applied or a surrounding area thereof more than ever, it has been required to improve activity of a herbicidal active ingredient and to reduce its dose as far as possible. A herbicidal composition comprising (1) a benzoylpyrazole compound represented by the formula (I) or its salt: wherein each of Q, R1, R2, R3, R4, R5, R6 and A is as defined in the specification, and (2) at least one compound selected from the group consisting of a polyoxyalkylene sorbitan fatty acid ester, a polyoxyalkylene fatty acid ester, a polyoxyalkylene styryl aryl ether, a polyoxyalkylene styryl aryl ether condensate and a polyoxyalkylene alkyl ether sulfate.
Patent MX-369323-B (MX)
Title: Acid soluble defluidizing pills.
Inventor: STEVEN PHILIP YOUNG
IPC: E21B43/22
Filed: 2013-07-01
Abstract: An acid soluble defluidizing pill for reducing fluid loss in a wellbore is provided that includes an oleaginous or non-oleaginous base fluid; at least one synthetic fiber; and at least one inorganic crystalline fiber; in which one or more of the synthetic fiber and the inorganic crystalline fiber are at least substantially acid soluble.