baber/WOPTO huggingface dataset:
Patent PT-73662-A (PT)
Title: Lockable closure for containers
IPC: B65D41/18
Filed: 1981-09-14
Abstract: A lockable closure for a container having an annular lip advantageously has locking means whereby the closure can be releasably locked to the container. The closure has at least an annular portion adapted to be disposed in contact with a portion of the annular lip of the container, and preferably also an annular wall adapted to contact a portion of a wall of the container to provide a sealing engagement therewith. The locking means generally comprises shoulder means for lockingly engaging the annular lip of the container and bending means adjacent the shoulder means for deflecting the shoulder means about the annular lip of the container. The closure is useful with containers formed of various materials, for example, of both metal and molded plastic.
Patent PT-78027-A (PT)
IPC: A61L2/20
Filed: 1984-01-27
Abstract: A sterilization method comprising subjecting a sterilization chamber to an initial vacuum and then introducing steam to increase chamber pressure. The introduction of steam is interrupted and the chamber is brought into communication with a solution in a gaseous sterilant generator. The mixture of gaseous sterilant and chamber atmosphere are continuously circulated whereby equilibrium is established and the material to be sterilized is subject to constant temperature, pressure, sterilant concentration, and relative humidity for a period of time sufficient for sterilization. Also disclosed is an apparatus capable of performing the sterilization method comprising a sterilization chamber in combination with a gaseous sterilant generator. Formaldehyde is the preferred sterilizing agent.
Patent PT-81590-A (PT)
Title: Method of producing a human cdna clone wich expresses biologically active erythropoietin
IPC: C12N15/85
Filed: 1985-12-02
Abstract: The invention refers to recombinant DNA plasmid vector containing cDNA encoding human EPO of clone lambda HEPOFL13 (ATCC 40153) and mammalian cell transformed with this vector or with a plasmid which contains the entire bovine papilloma virus DNA and the cDNA sequence of Table 3 coding for human EPO are which useful in the preparation of recombinant human erythropoietin which is characterized by the presence of O-linked glycosilation.
Patent PT-84688-A (PT)
Title: Article having a segment wich is elastically shirrable after manufacture
IPC: B29C61/00
Filed: 1987-04-15
Abstract: An article including at least one segment which is capable of being elastically shirred along at least a portion of its length subsequent to manufacture of the article, preferably by mechanical manipulation of a predetermined portion of the elastically shirrable segment. The predetermined mechanically manipulatable portion of the elastically shirrable segment preferably comprises an elastomeric member (20) which is maintained in a prestretched and tensioned condition in the desired direction of shirring. The opposed ends of the elastically shirrable segment in the article are interconnected to one another through the prestretched and tensioned elastomeric member. The prestretched and tensioned elastomeric member is also secured in fixed relation to at least one rigidifying member (15,16) to form a composite structure (10) which is strong enough to resist collapse in a direction parallel to the tensile forces acting upon the prestretched and tensioned elastomeric member prior to mechanical manipulation of the composite structure. The article is elastically shirred by mechanically manipulating the predetermined portion of the shirrable segment until movement of the prestretched and tensioned elastomeric member relative to the rigidifying member is effected. To elasticize the article containing the elastically shirrable segment, the relative movement between the prestretched and tensioned elastomeric member and the rigidifying member must be sufficient to release the tensile forces in the mechanically manipulated portion of the composite structure. This relative movement produces a degree of elastic shirring in the segment, and consequently in the article to which it is attached, in the direction of prestretching of the elastomeric member. The degree of segment shirring is proportional to the extent to which there is relative movement between the prestretched and tensioned elastomeric member and the rigidifying member in the area comprising the composite structure. Thus, the tension in the elastically shirrable segment can be increased by the user, as desired, by mechanically manipulating more of the composite structure. Elastically shirrable segments of the present invention are particularly well suited to high speed article manufacturing operations, since the segments can be applied to the articles in a substantially untensioned condition and their tension released subsequent to article manufacture.
Patent PT-86220-A (PT)
Title: Process for the preparation of compositions containing antimicrobial proteins ans uses thereof
Inventor: GABAY JOELLE E
IPC: C07K14/47
Filed: 1987-11-26
Abstract: The present invention provides a composition of matter useful as an antimicrobial agent. This composition of matter comprises at least two polypeptides selected from the group consisting of human polymorphonuclear leukocyte polypeptides having apparent molecular weights of about 3,500 daltons, about 13,000 daltons, about 18,000 daltons, about 29,000 daltons, and about 54,000 daltons. The composition of matter has respiratory burst-independent, antimicrobial activity for bacteria and fungi at a pH from about 5.0 to about 8.0 and at calcium ion concentrations up to about 10 mM, bactericidal activity at sodium chloride concentrations up to about 0.3M, and fungicidal activity at sodium chloride concentrations up to about 0.15M. Methods for preparing this composition of matter are also provided. Further provided are purified polypeptides useful as antimicrobial agents, and methods for producing these polypeptides.
Patent PT-88059-A (PT)
Inventor: HEINRICH PETER
IPC: C07C259/04
Filed: 1988-07-21
Abstract: Desferrioxamine B or a partially O-acylated derivative thereof is selectively acylated at the nitrogen atom of the amino group by treating a desferrioxamine B derivative in which the amino nitrogen and the hydroxyl oxygen carry an organic silyl group and at least one of the hydroxamic acid groups with an organic acylating agent and then cleaving the silyl groups present. The N- and O-silylated starting materials can be prepared by reaction of a suitable desferrioxamine B derivative containing at least one hydroxyl group and the amino group in unbound form with an organic silicon halide, preferably in situ.
Patent PT-96405-A (PT)
Inventor: ROSEN TERRY JAY
IPC: A61K31/34
Filed: 1991-01-02
Abstract: 3-Amino-2-phenylpiperidine is a valuable intermediate for the preparation of certain 3-aminopiperidine substance P antagonists. (Divisional of application no 90313680.2).
Patent PT-97539-A (PT)
Inventor: BUCKWALTER BRIAN LEE
IPC: C07K14/555
Filed: 1991-05-02
Abstract: The present invention relates to physiologically-active derivatized natural and recombinant mammalian and human proteins and polypeptides. The invention provides chemical methods for derivatizing natural and recombinantly-derived proteins or polypeptides containing cysteine residues, either naturally or through site specific mutageneses. The pharmaceutical compositions containing said derivatized proteins and/or polypeptides are formulated to provide stable, long-acting compositions of such proteins and/or polypeptides, previously difficult to achieve.
Patent PT-99291-A (PT)
Inventor: PRAHL JAN
IPC: A61F5/01
Filed: 1991-10-21
Abstract: The invention describes an orthopaedic correction splint for correcting an adduction of the forefoot or metatarsus with a front half-sole (10) enclosing the deformed part of the foot at least at the sides and a rear half-sole (11), the two half-soles being connected to one another in an articulated manner so as to be pivotable about a vertical line, which is defined by a pintle (13), relative to the plane of the half-soles and having a spring (17) whose spring force acts in the lateral direction upon the front half-sole (10), the pintle (13) being arranged on the outer edge of the two half-soles (10, 11) and the spring being a pressure spring (17) by means of which the half-soles (10, 11) are pressure-loaded relative to one another on the medial side. <IMAGE>
Patent SI-9300460-A (SI)
Title: antiburglary car glass
Inventor: HOERNER ALFRED
IPC: B32B17/10
Filed: 1993-09-03
Abstract: Anti-break-in motor-vehicle window (pane) made of compound (laminated) safety glass, in particular a side window or a door window, comprises a core sheet (3) made of polycarbonate of 0.5 to 1.5 mm thickness and outer sheets (1, 2) made of tempered (toughened) silicate glass of 1.5 to 3.5 mm thickness which are joined to the core sheet (3), each via a polyurethane layer of 0.3 to 1.0 mm thickness. The sheets (1, 2) of silicate glass have undergone thermal tempering, but their tempering is comparatively more gentle than that of a tempered safety glass such and with the result that the tensile stresses at the centre of the glass sheets, for a thickness of these glass sheets of 1.5 mm, are from 25 to 57 N/mm<2> and, for a thickness of 3 mm, from 17.5 to 47 N/mm<2>. The degrees of tempering in the marginal region are preferably greater than in the central region of the glass sheets. <IMAGE>
Patent SI-9500110-A (SI)
Inventor: GROM FRANC
IPC: B44D5/10
Filed: 1995-04-06
Abstract: ) Ob iskanju novih ustvarjalnih možnosti izvedbe
okraskov na jajčni lupini, pri katerih naj bi bilo
prednostno mogoče v prvi vrsti možno doseži ustrezen
estetski izgled jajčne lupine, razen tega pa tudi
različne svetlobne učinke, zlasti v smislu prosojnosti,
interference in drugih optičnih pojavov pri osvetljevanju
jajčne lupine, je naloga izuma tudi zasnovati
ustrezen, industrijsko uporabljiv in ponovljliv postopek,
s katerim bo omogočena izvedba okraskov na
sicer izjemno krhkem in občutljivem predmetu, kakršen
je običajna jajčna lupina (1). Tovrsten okrasek je
po izumu izveden iz običajne jajčne lupine (1), katere
površina (2) je gladka, prednostno polirana, pri tem pa
je jajčna lupina (1) opremljena s sistematično, po
vnaprej izbranem oz. določenem vzorcu razporejenimi
okroglimi skoznjimi luknjami (3,4), med katerimi
obstojijo polna, nepreluknjana območja (5) prav tako
vsakokrat vnaprej znanega in določljivega izgleda. Pri
tem vsakokratna množica (6) smiselno razporejenih
lukenj (3,4) ustreznih premerov vsakokrat tvori enega
ali več ornamentov (7).
Patent SI-9700320-A (SI)
Title: Permanent geotechnical anchor and procedure for its assembling
Inventor: KLAVDIJ KOVACIC
IPC: E04C1/00
Filed: 1997-12-17
Abstract: Permanent geotechnical anchors are completely and permanently sealed against penetration of water and their service life is therefore at least equal to the service life of construction works, while the state of anchors is controllable in every moment and the premature failure can be detected in time. The invention is solving the problem of corrosion of steel, which takes place due to occurrence of electrochemical macro-elements and access of water and dissolved oxygen to the surface of steel as well as due to the effect of rambling currents. Steel strands (1) in the free part of the geotechnical anchor are protected with wax and coated with PE mantle, while a ribbed pipe (4) and all the pipes for the primary injection (19, 20) and venting as well as the tip (5) of the anchor are made of PE. To separate the underlay plate (12) and the anchor head (13) from the anchoring place (21), an insulating plate made of cevolite (22) is inserted, while the anchor head itself (13) is protected with the mobilux EP2 or eurol maylit EP2 (28) grease. During the process of assembling of the permanent geotechnical anchor, the contact between the lubricated and non-lubricated part of the strand (1) is sealed with the sealing putty Sikaflex 11.
Patent UA-18499-A (UA)
Title: Workbench for dynamical balancing vertical rotors
Filed: 1991-01-22
Abstract: The invention relates to area of workbench construction. The workbench has frame, vibration system of executive body connected to it with elastic vertical and horizontal links. Vertical link is arranged as plate with rigidity 5-10 times smaller than rigidity of horizontal links.
Patent BG-101906-A (BG)
Title: Method for dop-containing mixture making
Inventor: RATHFELDER PAUL
IPC: C07F9/48
Filed: 1997-09-24
Abstract: The invention relates to a method by which2'-hydroxydiphenyl-2-phosphinic acid in the form of a commercialmixture with 6-hydroxy-(6H)-dibenzo-(c,e)oxaphosphorine. Onindustrial scales it is made easier and more economical in onevessel without the isolation of intermediate products and withoutthe distillation stage. By the method, o-phenylphenol is added toa mixture of phosphorus trichloride and catalyst at simultaneousheating of the reaction mixture which after this boils in underreflux condenser. The reaction mixture produced is left to cooland at continuous agitation it is mixed initially with water, andthen with lower alkanol. The product is left to crystallize withadditional agitation after which the crystalline product isseparated on a suction filter, is washed and dried. The inventionalso relates to a commercial mixture produced by the method whichis suitable for the preparation of fire-resistantcopolymerization-capable means for polyester fibres by directreaction with itaconic acid, ester or anhydride of the itaconicacid, optionally together with one or more diols.11 claims
Patent BG-102962-A (BG)
Title: Composition and method for the preparation of effervescent medicamentous form
Inventor: RADEVA KATJA S
IPC: A61K31/375
Filed: 1998-11-27
Abstract: The medicamentous form is designed for the medical practice. It is of higher stability and longer shelf life. The composition of the medicamentous form includes the active substances of ascorbic acid, acetylsalicylic acid, paracetomol or combination thereof, and the supplementary substances of adipinic acid, anhydrous citric acid, anhydrous sodium dihydrogencitrate, sodium bicarbonate, dry sodium carbonate, colloid silicon dioxide, saccharine sodium, povidon. Optionally it also contains a dyestuff, aromatizers, disodium editate, polyethyleneglycol 4000. By the method alkaline and acidic granulate is produced which are mixed in specified ratios and are optionally tabletized. The active substance or the active substances are included in the acidic or alkaline granulate, or directly to the mixture of the two granulates, and in the latter case they are homogenized with colloid silicon dioxide in advance. 4 claims
Patent BG-104071-A (BG)
Title: System for shock absorption in footwear products
Inventor: SERNA RALPH
IPC: A43B13/14
Filed: 2000-01-12
Abstract: The system includes a cassette which can be inserted in the footwear sole, in particular in its middle part. The sole consists of an insole (8) with a slot in the front part of step (9) improving the folding, thin middle insole (10) with a pocket at the heel in which the cassette (20) is fitted and a wear-resistant outersole(30). Cassette (20) has a base (27) first and second set of wear and tear elements (21-22, 23-24) and a wear and tear  element with reduced height (25) fitted between them.The wear and tear elements are arranged in such a way in order to be able to absorb the shock (impact)  on the heel of the sole. The cassette can be part of the absorbtion shocks (impacts) system for the sole  of a footwear. 25 claims, 18 figures
Patent BG-104596-A (BG)
Title: Pahrmaceutical compositions containing micronized bicyclic drugs
Inventor: DUMPLETON DAVID R
IPC: A61P21/00
Filed: 2000-07-11
Abstract: A pharmaceutical composition comprising a compound of formula in particulate form, said composition having a particle size distribution such that the median value of the volume mean diameter is within the range of from 350 to 700 nm. 22 claims
Patent BG-105040-A (BG)
Title: Method for producing fertilizer granulates containing urea and ammonium sulfatate
Inventor: BENDIX HORST
IPC: B01J2/04
Filed: 2000-12-11
Abstract: The invention relates to a method for producing fertilizer granulates which contain urea and ammonium sulfate and which have an ammonium sulfate concentration ï60 wt. %. According to the invention, a) a melted material suspension which is comprised of ammonium sulfate having an average particle size ranging from 30 to 300 micrometers and urea is produced at a temperature ranging from 120 to 155 degrees C; b) afterwards, the melted material suspension formed in step (a) is diffused from underneath in a fluidized bed granulator with the aid of at least one nozzle into the ammonium sulfate urea particles, whereby the fluidized bed is loosened by an ebullating air stream in the area of the injection point, and afterwards; c) the fertilizer granulate formed in the fluidized bed is detached and optionally processed. The method permits the production of homogenous urea ammonium sulfate granulates having an ammonium sulfate content ranging from 30 to 60 wt. % in a trouble-free manner, whereby the core size of the granulate can be adjusted in a targeted manner and the emissions of dust during granulation can be minimized. 27 claims, 2 figures
Patent BG-106735-A (BG)
Inventor: ARGIOLAS ANTONIO
IPC: A61K38/095
Filed: 2002-05-22
Abstract: Изобретението се отнася до малки пептиди, причиняващи ерекция на мъжки животни, когато се инжектират в паравентрикуларното ядро на хипоталамуса или когато се прилагат постоянно интравенозно или подкожно. Пептидите са полезни за лечение на еректилна дисфункция.
Patent BG-108896-A (BG)
Title: Essential oils installation
Inventor: GEORGIEV SLAVCHO
IPC: C11B9/00
Filed: 2004-10-06
Abstract: The installation is mobile and is used in agriculture for the extraction of essential oils from grass-type essential oil-containing crops. It results in reduction of losses, and in higher essential oil yields. The installation comprises a distillation module (1), a steam boiler station (2), water cooling tower (3), electric generator and electric board (4) which are fitted on platform (17) on wheels. Module (1) comprises a container (5) which is fitted on a mobile platform (16) on wheels. The full of raw materials container (5) of combine harvester (18), in a mode of distillation, is connected to a steam supply pipeline from station (2) and is also connected to the remaining units of the module (1).
Patent BG-111065-A (BG)
Title: Method for flotation extraction of noble metals from copper concentrate
Inventor: PANAYOTOV VLADKO
IPC: B03B5/28
Filed: 2011-10-25
Abstract: The method is used for flotation extraction of noble metals at enriching copper pyrites ores. By it is secured higher degree extraction of noble metals with diminished consumption of reagents and improved environmental conformity. The method includes milling of the copper pyrites ore, electrochemical treatment of the flotation pulp, and flotation. According to the invention, the milling of the copper pyrites ore is carried out in a catholyte environment, which is obtained at electrolysis of water in a diaphragm electrolyser with insoluble or semi-soluble electrodes during 5-20 minutes, density of current being 50 mA/cm2. The flotation pulp received from the milled ore is treated with foaming reagents and collectors, as well with pH regulator - whitewash - for 1-3 minutes, and is subjectedto the electrochemical influence of direct current applied by submerged in the pulp semi-soluble iron electrodes for 10-30 minutes, the density of the current being 25-100 mA/cm2. After that is carried out flotation with simultaneous electrochemical application of direct current by submerged in the pulp semi-soluble iron electrodes for 5-10 minutes, the density of the current being 10-50 mA/cm2. The acid anolyte, obtained at the electrolysis of the water in the diaphragm electrolyser is submitted for neutralization of the flotation waste waters.
Patent BG-113252-A (BG)
Title: Balanced mechanical press
Inventor: ATANASOV KOLYO
IPC: B30B15/04
Filed: 2020-10-22
Abstract: The invention relates to a balanced mechanical press for producing molded metal products. The balanced mechanical press, comprises a housing (1) having a operation base (2); a crankshaft (3) arranged horizontally above the operation base (2), which is rotatably mounted to the housing (1) by means of bearing elements; a main connecting rod (4) extending downwards from the crankshaft (3) and having a stem (5) and a pair of upwardly projecting arms (6) hinged and clamped to the crankshaft (3) by means of bearing elements; a main sub-port (7) fixed to the stem (5) of the main connecting rod (4) by means of a connectin rod bolt (8). Additionally, the press includes a balancing connecting rod (9) centrally located between the arms (6) of the main connecting rod (4) and extending upwards from the crankshaft (3) to which it is hinged by means of bearing elements; a balancing support (10, 15) hinged at the upper end of the balancing connecting rod (9) by means of an axle (11) and bearing elements,as the balancing support (10, 15) is capable of vertical reciprocating movement; optionally, balancing weights (12) fixedly mounted on the balancing support (10); wherein vertically interacting bearing rails (13) and track bearings (14) are arranged between the main support (7) and the housing (1), and the bearing rails (13) are fixed to the main support (7) and the track bearings (14) are fixed to the housing (1).
Patent CN-1414941-A (CN)
Title: 具有羟羰基－卤代烷基侧链的化合物
Inventor: JAECHON JO
IPC: A61P5/24
Filed: 2000-12-13
Abstract: 使用口服活性低的化合物或具有其母核的基团与通式(1)表示的基团以化学键结合方式结合的化合物、其光学异构体或其水合物或药学上可接受的盐(式中，R 1 表示氢原子等；R 2 表示碳原子数1至9的卤代烷基等；m表示2至14的整数；n表示2至7的整数)。上述化合物与具有抗雌激素活性的化合物等母核付加，可显著提高其口服活性，作为医药品是有用的。
Patent CN-1321937-A (CN)
Title: 通用图象处理合成方法
Inventor: ZHANG JINSONG
IPC: G06F15/163
Filed: 2001-01-15
Abstract: 本发明提供了一种通用的图象处理、合成方法,该方法基于通常状况下的专业人员的思维方式,以及客户端与服务器的结构进行设计,通过操作者对该方法的使用,实现了非专业人员的高级图象处理,并通过互联网将完成的图象文件上传到网络,能够实现异地的使用,并可以通过该中方式定制产品。
Patent CN-1411636-A (CN)
Title: 无线电通信系统
Inventor: BAKER M P J
IPC: H04L7/00
Filed: 2001-07-09
Abstract: 一种无线通信系统改善了第一个站和第二个站之间的发射功率控制。第二个站响应于它接收到的来自第一个站的功率控制命令而调整它到第一个站的发射功率。第一个站决定何时它与来自第二个站的发射同步，并将同步通知给第二个站。发信号通知同步后，由第二个站进行发射功率调整的速率被提高(508)。功率控制改变的速率可以通过调整功率控制步长来达到，或者通过其它对作为第二个站接收功率控制命令的响应的修改，或者通过修改它接收功率控制命令的速率。这种技术克服的问题是，因为建立同步可能需要重要的时间，所以存在一种危险，就是发射功率可能增长过大并产生了不可接受的干扰。
Patent CN-1436376-A (CN)
Title: 电化学元件用密封剂和使用该密封剂的电化学元件
Inventor: TAKAO UYAMA
IPC: H01M50/417
Filed: 2001-06-04
Abstract: 用于为电化学元件提供宽温度范围内优良密封性的密封剂，它包含橡胶组分和增粘剂。其中，所述的橡胶组分是选自丁基橡胶和聚异丁烯橡胶中的至少一种；所述的增粘剂是选自萜烯类树脂、脂肪族类石油树脂和脂环族石油树脂中的至少一种。
Patent CN-1394774-A (CN)
Title: 车辆用侧气囊及其折叠方法
Inventor: MYONG-RON CHANG
IPC: B60R21/2346
Filed: 2002-07-03
Abstract: 本发明提供一种车辆用侧气囊及其折叠方法。通过提供具有多层叠加的加固衬垫、内部缓冲衬垫、管状系带及缝合部的气囊模块100、200、300，在不易偏心地调节气体压力持续时间的状态下展开侧气囊衬垫，可有效保护座位上就座的驾驶员和乘客。另外，本发明的侧气囊由于使用的缓冲衬垫数量少，缝合方法简单，折叠操作有利，所以具有可节省费用的效果。
Patent CN-1492830-A (CN)
Inventor: TYNI TAPIO
IPC: B66B1/20
Filed: 2002-02-19
Abstract: 一种电梯组控制方法，用于向电梯分配登梯请求和车厢请求，使得满足目标设置。在该方法中，产生车厢特有能耗文件，来描述在电梯带着不同的负载从每个楼层向其它每个楼层的每次行程中发生的能耗，而这样分配请求，使得为所有激活请求服务所导致的能耗最小化。
Patent CN-1555366-A (CN)
Inventor: STEFAN HILLEBRAND
IPC: A01N43/58
Filed: 2002-09-04
Abstract: 本发明涉及通式(I)的化合物：其中R 1 、R 2 、R 3 、R 4 、R 5 和R 6 如在说明书中所定义，制备它们的多种方法，以及它们用于控制有害微生物的用途。
Patent CN-1694746-A (CN)
Inventor: LEYDE KENT BISHAY JON M HARRIS
IPC: A61N1/32
Filed: 2002-09-27
Abstract: 本发明涉及用于控制透皮电信号的方法和设备。在一个实施例中，该方法可包括一种用于显示电治疗信号的特征的计算机执行方法，该方法可包括接收电治疗信号的特征的第一值并且引导具有第一值的第一电治疗信号的传输。该方法还可包括引导数字显示装置显示表示第一值的第一图形，接收特征的第二值，引导具有第二值的第二电治疗信号的传输以及引导数字显示装置显示与第一图形的显示的第二图形。该设备可同时控制被引导到多个通道的信号电平，并且当疗程结束或者暂停时可自动将信号电平设为零。
Patent CN-1571707-A (CN)
Title: 超声波清洁装置
Inventor: LARRY DUVAL DEAN
IPC: A47L25/08
Filed: 2002-10-18
Abstract: 超声波清洁装置(10)包括超声触头(14)和适于向超声触头供电的电源(13)，还包括一个或多个便于消费者使用该清洁装置的特性，并可提高消费者使用超声波清洁装置的安全性，和/或改进消费者使用超声波清洁装置时的清洁性能。
Patent CN-1515358-A (CN)
Inventor: KIM II
IPC: B01J31/16
Filed: 2003-01-09
Abstract: 公开的是用于生产多元醇的双金属氰化物配合物催化剂，该催化剂通过使用单价醇和多价醇作为配位剂而生产。该双金属氰化物配合物催化剂的优点在于当通过环氧化物聚合反应生产多元醇时，生产的不饱和多元醇数量小，催化剂活化时间短，和增加多元醇的生产收率，因此不需要在聚合反应之后从多元醇除去剩余的催化剂。