baber/WOPTO huggingface dataset:
Patent KR-20010026655-A (KR)
Inventor: CHO HYEON RYONG
IPC: H01Q3/34
Filed: 1999-09-08
Abstract: PURPOSE: A ceiling-mounting type compact omnidirectional antenna for a wireless communication system is provided to maintain a uniformity of a beam pattern and improve a frequency matching characteristic. CONSTITUTION: A microstrip substrate(311) reflects a radiant electromagnetic wave to the air. A connector hole(312) is formed at the microstrip substrate(311) in order to connect a cable transmitting the electromagnetic wave. A microstrip line(313) is formed at the microstrip substrate(311) in order to transmit the electromagnetic wave inputted through the connector hole(312). A radiating means(314) radiates the electromagnetic wave, which is transmitted through the microstrip line and resonates with the microstrip substrate, to the air. A tuning stub(315) matches an impedance of the electromagnetic wave which is supplied to the radiating means through the microstrip line. The angle between the microstrip substrate and the radiating means is substantially less than 45°.
Patent KR-19990084117-A (KR)
Title: 위생적인 컵걸이와 컵
Filed: 1999-09-15
Abstract: 컵걸이용 원형링(R)을 양치질용컵(10)의 외주면과 동일한 직경으로 하여 그 링 내면에 스프링(2)에 의해 출몰되는 다수개의 출몰핀(3)을 설치한 링(1)으로 한 것이나, 원형링(R)의 일정부위를 절개하여 개방부(4)를 형성한 탄성을 갖는 원형링(1')으로 한 것 중의 어느 하나로 구성하므로써 컵을 링(R)에 꽂았을때 링(1)내의 출몰핀(3)이나 링(1')직경의 확개에 의하여 컵(10)이 탄력적으로 컵을 파지하게 하고, 컵걸이의 벽브라켓(5)에 장착할 부위는 구형(6)으로 형성하여 그 구형(6)을 브라켓(5)내의 구형홈(7)에 회전되게 매립하고 그구형(6)이나 구형홈(7)중 어느 하나에는 다수개의 반구형요홈(12)를, 다른 하나에는 스프링(8)에 탄지되어 출몰되는 다수개의 탄성볼(9)을 형성하여 구형(6)을 일정각도 회전시에 탄성볼(9)과 반구형요홈(12)의 결합에 의해 구형(6)을 잡아주도록 구성하고, 상기 컵걸이에 삽착되게 걸어두는 컵은 외주면 일정높이에 원형요구(11)를 형성한 것으로 하므로서 양치질용 컵을 컵걸이에 약간의 힘으로 누르면서 아래로 밀어주게 되면 컵이 출몰핀(3)의 탄성이나 링의 절개부(4)의 탄성에 의한 확개,복귀력에 의하여 컵이 컵걸이에 장착되어 일부러 힘을 가하여 빼지 않는한 떨어지지 않고 안전하게 유지되고 그와 같이 삽착되는 컵을 비눗물등 오물의 침입 방지를 위하여 링(1)과 함께 컵을 회전시키면 브라켓 장착용 구형(6)이 회전되어 컵의 상단 개구부가 아래로 가게 되어 위생적으로 컵을 보관 할 수 있게 되는 것이다.
Patent KR-20010027757-A (KR)
Inventor: YUN MAN HEE
IPC: G06Q50/20
Filed: 1999-09-15
Abstract: PURPOSE: A system for studying foreign language in multimedia is provided to report an invasion fact by sensing an invader in a practical room, to record and play an audio and a video by using a cassette deck and an image language practice recording media. CONSTITUTION: A keyboard unit(27) is installed in a predetermined area in an upper part of a body(1). A CD or a DVD ROM drive (21, 23) operated according to a command of a user are installed in an area adjacent to the keyboard unit. A cassette deck unit(25) operated according to a command of the user is installed in an area adjacent to the keyboard unit. A display screen(2) which shows an image generated from the CD and the DVD ROM drive to the user is hinged and combined. The display screen(2) is formed with a cover(3) which covers the upper part of the body(1).
Patent KR-19990084175-A (KR)
Title: 가구용 패널의 마감시트 및 이를 이용한 가구용 패널
Filed: 1999-09-21
Abstract: 본 발명은 가구용 패널의 마감시트 및 이를 이용한 가구용 패널에 관한 것으로서, 그 배면에 활성탄분말을 적층하여 항균기능과 탈취기능을 부가시킨 새로운 가구용 패널의 마감시트및 이를 이용한 가구용 패널에 관한 것이다. 
     본 발명에 따르면, 지류나 합성수지 또는 원목박판 등으로 되어 가구용 패널의 일측면 또는 양측면에 부착되는 가구용 패널의 시트(10)에 있어서, 상기 시트(10)의 배면에는 숯이나 활성탄분말이 적층 또는 코팅된 것을 특징으로 하는 가구용 패널의 마감시트(100)가 제공된다.
Patent KR-20000028730-A (KR)
Inventor: BUTITA ANTHONY
IPC: H04Q3/00
Filed: 1999-09-29
Abstract: PURPOSE: A method and a device are provided to sequentially renew data bases having data about subscribers or about remote communication service when many records are renewed similarly. CONSTITUTION: An SMS(Service Management System) receives a user identification command about an influx NPA division. The SMS automatically identifies and renews the management composing element of SMS in an intelligent network, database affected by the SMS, record and service by response to reflect the change corresponding in the NPA(Number Plan Area) code allocated to line, subscribers, and services. The command for performing the renewal is transmitted to an intelligent network element affected by the SMS. And, the system provides transformation to the intelligent network element affected to call the telephone numbers included in the NPA division processed before, during and after allowable dialing. The system delivers the moderate changes to the intelligent network elements reliably and simultaneously. Thereby, the work of a remote communication service provider is simplified.
Patent KR-20010036583-A (KR)
Inventor: KIM CHEOL
IPC: H03K5/00
Filed: 1999-10-09
Abstract: PURPOSE: A clock generator using a ring oscillator is provided which performs accurate phase control using a direct digital synthesis technique and carries out pulse triggering with a frequency generated by a ring oscillator using a delay cell to generate a precise variable clock. CONSTITUTION: A clock generator includes a phase accumulator(300) for accumulating a phase increment in synchronization with a reference clock, a phase shift detector(400) for generating a trigger enable signal when the accumulated phase is shifted, a trigger position generator(500) for obtaining a trigger distance(TD) to a point where phase shift occurs when the phase shift is generated, and a pulse trigger part(600). The pulse trigger part detects a right count value at a predetermined edge of the reference clock using tap signals generated by an inner ring oscillator and a phase count value obtained by counting one of the tap signals, and generates a resolution that indicates how many triggers can be created in one section of the reference clock from the ring count value. In addition, the pulse trigger part operates the resolution, trigger distance and phase increment to convert the trigger distance into a ring count unit and generates a pulse at a position where the ring count unit is added to a predetermined offset value.
Patent KR-20010046793-A (KR)
Inventor: KIM DONG GYU
IPC: G03F9/00
Filed: 1999-11-15
Abstract: PURPOSE: An apparatus for detecting alignment of a wafer is provided to prevent photoresist from being unashed because of defective chuck loading caused by misalignment of the wafer. CONSTITUTION: Pluralities of wafers are inserted into a cassette. A detection unit(102) is installed on a wafer stage on which the cassette is loaded. the detection unit detects whether the cassette is loaded. A light emitting unit(106,110) irradiates light toward the plurality of wafers in response to a light emitting control signal, separated toward the upper portion of the wafer stage by a predetermined distance. A light-receiving unit(112,114) is installed on the wafer stage to detect light from the light emitting unit, and generates a light receiving detection signal designating the intensity of the detected light. A main control unit(122) generates an alignment detection signal for detecting an align state of the plurality of wafers of the cassette loaded on the wafer stage in response to the detection signal. A comparison control unit(124) supplies the light emitting control signal to the light-emitting unit in response to the alignment detection signal. The comparison control unit compares the level of the light receiving detection signal with a predetermined reference level, and generates an alarm control signal according to the comparison result. An alarm unit(126) generates an alarm signal designating an alignment state of the plurality of wafers in response to the alarm control signal.
Patent KR-20010047015-A (KR)
Inventor: KIM HYEONG SEOK
IPC: B60R21/00
Filed: 1999-11-17
Abstract: PURPOSE: A vehicle collision preventing system is provided to increase economical efficiency and reduce the volume occupying inside a vehicle by using an oscillator and a transmitter in common. CONSTITUTION: A vehicle collision preventing system includes a signal generating element(10) generating a high frequency signal for sensing an obstacle, a signal detecting element transmitting an output signal of the signal generating element to the outside of a vehicle and detecting the change between the reflected signal after being transmitted and the transmitting signal, signal processing elements(11-14) analyzing the result detected by the signal detecting element for generating obstacle information around the vehicle, and a control element(2) controlling the traveling of the vehicle based on the obstacle information of the signal processing element and alarming the existence of the obstacle.
Patent KR-20010047571-A (KR)
Inventor: CHOI GI WON
IPC: H01L23/28
Filed: 1999-11-22
Abstract: PURPOSE: A chip scale stacked chip package is provided to easily embody a high-capacity stacked chip package, by adhering beam leads of a tape interconnection board to the electrode pads of the first and second semiconductor chips. CONSTITUTION: A window is formed in the edge of polyimide tape, and a ball settling part is formed in the center of the polyimide tape. A metal interconnection(25) is formed on a surface of the polyimide tape to be connected to the ball settling part. A tape interconnection board(20) has beam leads(21) intersecting the window, connected to the metal interconnection. The beam leads exposed to the window are bonded to an electrode pad so that the first semiconductor chip(31) is adhered to the tape interconnection board with elastomer(35). The electrode pad is disposed in the outer portion of a region adhered to the first semiconductor chip so that the second semiconductor chip(41) is adhered to the lower portion of the first semiconductor chip. Electrode pads and beam leads of the second semiconductor chip are bonded in the outside of the bonding portion of the electrode pads and the beam leads of the first semiconductor chip. Molding compound(50) encapsulates a bonding portion of the first and second semiconductor chips and the beam leads. An external-mounting unit is adhered to the ball settling part of the tape interconnection board.
Patent KR-20010048738-A (KR)
Inventor: CHOI WON SEOP
IPC: H01L21/306
Filed: 1999-11-29
Abstract: PURPOSE: A strap line is connected to a fixing unit installed in a radio frequency controller in order to reduce a step for transmitting a radio frequency power. Thus, a contact resistance is reduced. And the strap line is extended longer to minimize a load in moving a heater table. CONSTITUTION: In a plasma etching device, a radio frequency controller(213) connected to a power source(211) for generating a radio frequency is provided. A radio frequency transmitting tube(215) is connected to the radio frequency controller(213). Within the radio frequency transmitting tube(215), a terminal at the end of a strap line is fixed to a fixing unit(217) to be connected to the radio frequency controller(213). A terminal at the other end of the strap line is connected to a support(225) by a fixing pin(223). And the support(225) is connected to a transmitting unit(227) which is connected to a heater table(239) through an injection unit(229). A radio frequency power is controlled by the radio frequency controller(213), and then transmitted through the strap line and the transmitting unit(227). So the radio frequency power is applied to the heater table(239).
Patent KR-20010053872-A (KR)
Inventor: PARK SEOK GYU
IPC: A61K31/51
Filed: 1999-12-02
Abstract: PURPOSE: Provided is a process for producing the titled medicine by dissolving amprolium hydrochloride in purified water, adjusting the solution pH at 6.0-8.0 and then dissolving sodium sulfaquinoxaline. Whereby, the medicine provides convenience, effectiveness, safety or the like. CONSTITUTION: This process comprises the steps of: preparing an amprolium hydrochloride aqueous solution by dissolving amprolium hydrochloride in purified water; adjusting the solution pH at 6.0-8.0 by adding sodium hydroxide or potassium hydroxide to the amprolium hydrochloride aqueous solution; dissolving sodium sulfaquinoxaline in the pH controlled aqueous solution; adding a solubilizing agent to the solution; and adjusting the solution pH at 9.0-11.
Patent KR-20010055447-A (KR)
Inventor: KIM GYU HWAN
IPC: H01J29/76
Filed: 1999-12-10
Abstract: PURPOSE: A deflection yoke for a cathode ray tube is provided to maintain a deflection sensitivity of the deflection yoke by controlling a leakage magnetic field of the deflection yoke. CONSTITUTION: The deflection yoke for a cathode ray tube includes a horizontal deflection coil(31) and a vertical deflection coil, each of which is a type of half mussel. The horizontal deflection coil(31) and the vertical deflection include a screen flange, the first neck flange(31b), the second neck flange(31c), and a main deflection part(31d), respectively. The main deflection part(31d) connects the screen flange and the first neck flange(31b) with each other. The ratio of a vertical width(h) of the first neck flange(31b) to a horizontal width(1) of the second neck flange(31c) is a predetermined value. Preferably, The ratio of the vertical width(h) of the first neck flange(31b) to the horizontal width(1) of the second neck flange(31c) is 0.5 through 0.2.
Patent KR-20010056784-A (KR)
Inventor: PARK GYU DONG
IPC: H01L21/66
Filed: 1999-12-16
Abstract: PURPOSE: A method for forming an overlay measurement pattern of a semiconductor device is provided to increase the overlay accuracy by preventing from the shift of a vernier due to a floating insulation layer. CONSTITUTION: A first trench(T1) of a rectangular form is formed on a scribe line of a semiconductor substrate(100), and a second trench(T2) of a rectangular form is also formed on the edge of the first trench, separated at a certain interval from it. A first BPSG layer(110) is formed on the overall surface of the substrate. The first BPSG layer is removed to expose the first and second trenches. A polysilicon layer is formed on the first BPSG layer to be buried in the first and second trenches exposed. The polysilicon layer is patterned to form a vernier(120A) on the scribe line, buried in the first and second trenches. A second BPSG layer(130) is formed on the overall surface of the substrate. A sub-vernier(140) is formed of a photoresist layer on the second BPSG layer in the vernier.
Patent KR-20000048320-A (KR)
Inventor: OHMATSUZAWA TAKESHI
IPC: C08G63/00
Filed: 1999-12-22
Abstract: PURPOSE: A catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst is provided. CONSTITUTION: A catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a hydrolyzate obtained by hydrolysis of a titanium halide and which has a molar ratio (OH/Ti) of a hydroxyl group (OH) to titanium (Ti) exceeding 0.09 and less than 4. The polyester is obtained by polycondensing an aromatic dicarboxylic acid or an ester-forming derivative thereof and an aliphatic diol or an ester-forming derivative thereof in the presence of a catalyst for polyester production which comprises a polycondensation catalyst component comprising a solid titanium compound and a co-catalyst component comprising a magnesium compound. This polyester has a titanium content of 1 to 100 ppm, a magnesium content of 1 to 200 ppm and a weight ratio (Mg/Ti) of magnesium to titanium of not less than 0.01.
Patent KR-20010058034-A (KR)
Inventor: SON YOUNG SUK
IPC: G07F11/00
Filed: 1999-12-23
Abstract: PURPOSE: A rice cake vending machine for conveniently providing various kinds of rice cake to consumers at a site adjacent to one's residence in order to meet various tastes of consumers. CONSTITUTION: When a consumer pushes a selection button, a withdrawing means (18) is rotated so that a plate (22) installed movably at the lower part of a rice cake receiving chamber (26) for preventing discharge of rice cake is opened. Right after discharging a rice cake corresponding to cash input, a solenoid valve (21) regulates an interrupter (24) to exactly control the number of rice cake to be vented. In the case that the bottom side of a casing (25) is closed with upwardly drawing the plate (22), the solenoid valve operated by electric force draws the interrupter so that a rice cake is placed between the interrupter (24) and the plate (22) for the next vent.
Patent KR-20010063735-A (KR)
Inventor: CHOI JAE HUN
IPC: C10B37/02
Filed: 1999-12-24
Abstract: PURPOSE: A method for reducing the generation of tar sludge in the process for purifying tar by reducing the content of fine coals of charged coals in the process for the manufacture of cokes is provided, which effectively reduces the amount of tar sludge to be generated. CONSTITUTION: The titled method is characterized in that the amount of tar sludge to be generated in the process for purifying tar is reduced by reducing fine coals having a particle size of 150 micrometer contained in charged coals used in the process for the manufacture of cokes.
Patent KR-20010060966-A (KR)
Inventor: AHN JONG HAN
IPC: G03B15/00
Filed: 1999-12-28
Abstract: PURPOSE: A disposable camera using the negative film for synthetic pictures is provided to enable general users to easily take synthetic pictures and to be economical without an additional mask for the synthetic pictures. CONSTITUTION: A disposable camera(3) comprises a negative film(2) having a prior exposed portion(1) in a regular shape per cut; an eccentric hole(6) symmetrically formed with a non-exposed portion(10), in a perspective window(5); and an asymmetric deflection hole(8) formed in a lens unit(7). Then, the outmost block of an object(22) is set through the eccentric hole and the object is properly imaged on the non-exposed portion of the negative film through the asymmetric deflection hole.
Patent KR-20010058985-A (KR)
Inventor: JUNG YU SEOK
IPC: C08L33/08
Filed: 1999-12-30
Abstract: PURPOSE: A thermosetting cross-linkable acrylic resin composition useable as a transparent base paint is provided to obtain improved chipping-resistance and durability of the base paint at coating it in wet-on-wet manner by containing desired cross-linkable monomer component. CONSTITUTION: The acrylic resin composition comprises 100 weight parts of copolymerized monomer component containing 5-30 wt.% of cross-linkable monomer defined by formula (wherein R1 is hydrogen or methyl group; R2 is hydrogen or aliphatic alkyl group having C1-C10; R3 is hydrogen or aliphatic alkyl group having less than 4 carbon atoms), 10-45 wt.% of acrylic ester monomer, 5-20 wt.% of aromatic vinyl monomer, 5-25 wt.% of unsaturated monomer having hydroxyl radicals and 1-4 wt.% of unsaturated monomer having acid radicals; 0.5-5 weight parts of polymerization initiator and 0.01-1 weight parts of oxidation stabilizer.
Patent KR-20010059157-A (KR)
Inventor: KIM JUN YEOP
IPC: G01M15/00
Filed: 1999-12-30
Abstract: PURPOSE: A load applying device is provided to obtain an exact testing result by testing durability and characteristics of an engine mount by applying various loads to the engine mount. CONSTITUTION: A load applying device includes a base jig(10), a test jig(20), a load applying jig(30) and an actuator(50). The test jig is mounted on the base jig in a slidable manner and a testing object(60) is mounted on the test jig. The load applying jig is mounted on the testing object to apply a predetermined load to the testing object. The actuator is mounted at a side of the load applying jig to actuate the load applying jig. The test jig has a body(21), a plurality of rollers(22) mounted at a lower portion of the body and restricted by the base to slide inside the base jig, and a mounting part(23) for mounting the testing object on an upper portion of the body.
Patent KR-20010060125-A (KR)
Inventor: LEE SEONG JUN
IPC: C08L23/16
Filed: 1999-12-31
Abstract: PURPOSE: A semi-rigid olefine based resin composition is provided to enhance formability and coating property at injection molding of bulk products as well as to significantly increase impact-resistance, heat-resistance and bending elasticity by comprising ethylene-propylene copolymers having different rubber contents as the primary components and adding other modified resin and additives. CONSTITUTION: The semi-rigid olefine based resin composition comprises 18-22 wt.% of ethylene-propylene copolymer containing 7-12 wt.% of ethylene-propylene rubber; and 50-60 wt.% of ethylene-propylene copolymer containing 20-30 wt.% of ethylene- propylene rubber. The composition further includes 10-20 wt.% of ethylene-alpha-olefine copolymer rubber, 0-5 wt.% of talc, 1-2 wt.% of modified resin and 0.1-1.0 wt.% of additives. The ethylene-alpha-olefine copolymer rubber is ethylene-propylene rubber containing 25-45 wt.% of propylene and having 0.5-3g/10min.(230 deg.C.) of the melt index. The modified maleic anhydride is grafted ethylene-propylene rubber or ethylene-2-hydroxy ethylmethacrylate copolymer.
Patent KR-20000068166-A (KR)
Title: 디지털 데이터전송장치 및 그 전송방법
IPC: H04N21/2312
Filed: 1998-06-19
Abstract: 본 발명에 관한 디지털 데이터전송장치 및 그 전송방법은, n 개(n은 2이상의 정수)의 채널의 디지털 데이터를 기록매체로부터 재생하는 재생부와, 텔레비젼신호에서의 1 프레임을 라인단위로 n 개의 전송영역으로 분할하여, 상기 재생부에 의해 재생된 상기 n 개의 채널의 디지털 데이터를 라인단위로 상기 n 개가 해당하는 각 전송영역에 다중하는 다중부와, 상기 다중부에 의해 다중된 데이터를 전송하는 전송부를 구비하고 있다.
Patent KR-20000035898-A (KR)
Title: Substituted 6,6-hetero-bicyclic derivatives
Inventor: CHEN YUHPYNG LIANG US
IPC: C07D498/04
Filed: 1997-07-21
Abstract: PURPOSE: Provided is certain pharmaceutically active substituted 6,6hetero-bicyclic derivatives, pharmaceutical compositions containing them and methods of administering them to subjects in need of their corticotrophin releasing factor antagonist activity. CONSTITUTION: Provided is the compounds of formula (I), wherein A, B, D, E, K, G, R(3)and R(5) are defined as in the specification, and to the pharmaceutically acceptable salts of such compounds. Compounds (I) are corticotrophin releasing factor (hormone) CRF (CRH) antagonists.
Patent KR-20010029537-A (KR)
Title: 제ⅱ형 당뇨병에서의 인슐린 내성을 치료하기 위한 렙틴 길항제의 용도
IPC: A61P5/50
Filed: 1997-09-15
Abstract: 본 발명은 제II형 당뇨병을 치료하기 위한 렙틴 길항제를 포함하는 약제학적 제제에 관한 것이다.  하나의 렙틴 길항제는 쥐의 렙틴 단편을 기초로한 것이고 116 내지 167 또는 116 내지 166번의 아미노산을 포함한다.  제II형 당뇨병을 치료하기 위한 방법이 또한 기술되어 있다.
Patent KR-20000068601-A (KR)
Title: 유리 노 및 이를 포함하는 설비
IPC: C03B5/027
Filed: 1998-07-21
Abstract: 본 발명은 용융 에너지를, 조(bath)의 표면을 통한 전극 침지에 의해 용융된 유리조내로 주울 효과에 의해 분산시키는 전기 용융 기술에 관한 것이다.  본 발명은 전극을, 높이 h가 800㎜ 미만이고, h/S 비가 0.5m/㎡ 미만이 되도록 하는 표면 S의 용융된 유리조로 침지시킴을 특징으로 한다.  다른 양태에 있어서, 전극과 조 사이의 교환 표면은 유리 ㎥당 0.075㎡ 이상이다.  본 발명은 섬유 유리 절연재와 같은 유리-기재 제품을 제조하는데 유용하다.
Patent KR-20000048745-A (KR)
Title: Printing group for rotogravure printing presses
Inventor: BOSONI GIANNINO
IPC: B41F35/06
Filed: 1997-08-26
Abstract: PURPOSE: A rotogravure printing presses and more precisely the printing group (2) is provided which is provided with a device (8) for adjusting a doctor (7) which acts on an impression cylinder (5). CONSTITUTION: An adjusting device (8) is structured so as to be controlled by a processor on which the value of the diameter of the impression cylinder and the value of the working angle of the doctor on the cylinder are preset. The printing group (2) is completely enclosed between walls which create a space inside which nozzles (41, 42, 45 and 46) for washing the entire printing group and, in particular the doctor, are housed.
Patent KR-20000049094-A (KR)
Title: Fuel compositions
Inventor: EDWARDS CHARLES LEE
IPC: C10L1/22
Filed: 1996-10-11
Abstract: PURPOSE: Provided are sulfur-containing alkoxylate compounds useful as additives in fuel compositions having a mixture of a major amount of hydrocarbons in the gasoline boiling range and a minor amount of one or more of these compounds. CONSTITUTION: A fuel composition comprises a mixture of a major amount of hydrocarbons in the gasoline boiling range and a minor amount of an additive compound having the formula: R1-S-(R2-O)x-(R3-O)y-H wherein R1 is selected from the group consisting of hydrogen, alkyl of 1 to 20 carbon atoms, acyl of 2 to 20 carbon atoms; aryl of 6 to 20 carbon atoms and polyoxyalkylene alcohol of the formula: H-(O-R4)z)- wherein R4 is selected from the group consisting of alkyl of 2 to 20 carbon atoms and z is from 1 to 50; R2 is selected from alkyl of 2 to 20 carbon atoms: R3 is selected from alkyl of 2 to 20 carbon atoms; x is from 0 to 10; y is from 1 to 50; and the weight average molecular weight of the additive compound is at least 600.