baber/WOPTO huggingface dataset:
Patent EP-1114192-B1 (EP)
Inventor: BATES CECIL PETER
IPC: C21B13/00
Filed: 1999-08-30
Granted: 2005-10-19
Abstract: A process for producing metals from a metalliferous feed material in an electric furnace is disclosed. The process includes the steps of forming a molten bath having a metal layer and a slag layer on the metal layer in the furnace and supplying electrical energy to the furnace and converting the electrical energy to thermal energy and thereby contributing to the heat input requirements of the process. The process also includes injecting a carrier gas and a solid carbonaceous material into the molten bath via one or more than one solids injection lance/tuyere and causing molten material to be projected from the molten bath as splashes, droplets, and streams into a space above a nominal quiescent surface of the molten bath and forming a transition zone. The process also includes injecting an oxygen-containing gas into the furnace via one or more than one oxygen-containing gas injection lance/tuyere and post-combusting reaction gases released from the molten bath and thereby further contributing to the heat requirements of the process. In this process the ascending and thereafter descending splashes, droplets, and streams of molten material in the transition zone facilitate heat transfer to the molten bath and the transition zone minimises heat loss from the furnace via the side walls in contact with the transition zone.
Patent EP-1117689-B1 (EP)
Inventor: KATSUURA MIEKO
IPC: A61K38/18
Filed: 1999-10-04
Granted: 2012-03-28
Abstract: The purpose is to provide a mature protein having an antagonistic activity against bone morphogenetic proteins. The mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue among methionine residues or tryptophane residues existing in the amino acid sequence of mature human MP52 (SEQ ID No 1) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue. The chemical modification for said methionine residue is performed by an oxidization reaction or an alkylation reaction. The chemical modification for said tryptophane residue is performed by an allylsulphenylation reaction. Or a mature protein having an antagonistic activity against bone morphogenetic proteins is obtained by converting at least one residue of tryptophane residues existing in the amino acid sequences of mature human BMP-2 (SEQ ID No 2), mature human BMP-4 (SEQ ID No 3), and mature human BMP-7 (SEQ ID No 4) to a hydrophilic residue by chemical modification, or replacing said residues with a hydrophilic amino acid residue or a polar amino acid residue.
Patent IT-1265937-B1 (IT)
Title: Saddle of improved structure for two-wheel vehicles
Inventor: GENOVESI ENRICO
IPC: B62J/
Filed: 1993-05-13
Granted: 1996-12-16
Abstract: In a saddle 10 for two-wheel vehicles, of the type comprising a support structure 11 of polypropylene or similar synthetic material, a padding 12 and a lining cover 13, it is proposed to use specific profiled elements 17, which are integrated by stitching or welding to the edges of said lining cover 13; these are furthermore anchored to appropriate flaps 16 which are part of the support structure 11 and distributed along the perimeter profile of same. The resulting structure of the saddle therefore allows an easier mounting in an industrial setting for the saddle itself and a better esthetic configuration of its lower part. <IMAGE>
Patent IT-1304656-B1 (IT)
Inventor: AMMAR KHODOR
IPC: C07C35/42
Filed: 1998-09-23
Granted: 2001-03-28
Abstract: New active compounds are provided for the preparation of pharmaceutical compositions for medicinal use in general, and for use in dermatology, oncology, and the treatment of kidney, liver and nervous system disorders, and in which is present the group of formula (I) having three six-carbon condensed homocyclic rings including an aromatic central ring and two saturated or unsaturated aliphatic side rings in the meta position with respect to the aromatic central ring, and wherein the lateral substitutes R1 and R2 are alkyl groups with a carbon number of 1 to 4; both the aliphatic side rings also possibly having one or more further lateral substitutes.
Patent IT-1280173-B1 (IT)
Title: Plant for the production of coils or spools of long products
Inventor: DORIGO ALESSANDRO
IPC: B21C/
Filed: 1995-05-23
Granted: 1998-01-05
Abstract: Winding plant for metal bars, of the winding reel type which comprises: - a drawing and feed unit 1 which includes: - a vertical and horizontal driven roller pulling unit which can be adjusted for position and pressure - a feed guide 11 having a series of both vertical and horizontal idling rollers 110-113 in a corresponding bar feed zone and - guide extensions 12, 13, 14, 141 which can move along the axial plane of the winding mandrel 201 to accompany and guide the semifinished product in such a way as to distribute it correctly and uniformly on the said winding mandrel 201 in a back and forth motion, - a winding unit 2 which includes: - the said winding mandrel 201 which is of expandable diameter 203-202, - a set of holding rollers 211 which close on the winding mandrel 201 in which the said winding holding rollers 211 have their axes parallel to the axis of the said winding mandrel 201. <IMAGE>
Patent IT-1281444-B1 (IT)
Inventor: ORLANDI ALESSIO
IPC: F16K11/07
Filed: 1995-11-03
Granted: 1998-02-18
Abstract: Piston-type device to regulate pressure in mixing valves, advantageously of the cartridge type, comprising at least an outer containing body (11) with separate inlet holes (15a, 15b) and outlet holes (21a, 21b) for hot and cold water and containing inside a floating piston with apertures on the circumference which can be associated in a variable manner with the inlet holes (15a, 15b), the lateral contact surfaces of the floating piston (14) on the two sides being defined by ribs (19) obtained radially on the outer containing body (11) and extending towards the inside of the regulator device (10), the ribs (19) defining a contact surface at least reduced in relation to the front surface of the floating piston (14). <IMAGE>
Patent IT-1310879-B1 (IT)
Inventor: DONINI ESTORE
IPC: B21B13/02
Filed: 1999-07-20
Granted: 2002-02-22
Abstract: Rolling stand (10) for plane products and method to control the planarity of said plane products, said rolling stand comprising a pair of working rolls (11a, 11b), a corresponding pair of back-up rolls (13a, 13b) and at least an intermediate roll (15a) located between one of said working rolls (11a) and a corresponding back-up roll (13b), axial translation means (16) and bending means (17) being associated with at least one of said working rolls (11a) to translate it axially and respectively bend it, crossing means (19) being associated with said intermediate roll (15a) to arrange it with its longitudinal axis (25a) inclined, that is, rotated, with respect to the longitudinal axes (21a, 21b, 23a, 23b) of said working rolls (11a, 11b) and of said back-up rolls (13a, 13b).
Patent JP-2876006-B1 (JP)
Title: 緑茶発酵物及びその利用飲食物
IPC: A21D2/36
Filed: 1998-03-27
Granted: 1999-03-31
Abstract: 【要約】
【課題】  健康飲料として飲用されている発酵茶（黒 茶）の乳酸菌を有効利用する。
【解決手段】  緑茶より分離したラクトバチルス属プラ ンタラム種菌（乳酸菌）を培養し、更に放冷した茶葉湯 に本乳酸菌を接種して発酵させて利用し易い形態の緑茶 発酵物を得る。
Patent JP-2909734-B1 (JP)
Title: 建築用板
IPC: B27D5/00
Filed: 1998-04-07
Granted: 1999-06-23
Abstract: 【要約】
【課題】木削片板また木質繊維板を用いて充分な強度を 有する合板代用の建築用板を得ること。
【解決手段】基板１の表面に化粧材３が貼着されると共 に、基板１裏面には、防湿性能を有し縦方向と横方向の 引張強度が等しく、少なくとも７Ｋｇｆ／ｍｍ ２ 以上の 引張強度を有する合成樹脂含浸紙積層板２が、貼着され た建築用板。
Patent JP-2983205-B1 (JP)
Title: 非水系二次電池
IPC: H01M10/0525
Filed: 1998-07-31
Granted: 1999-11-29
Abstract: 【要約】
【課題】  電解液に添加しても低温特性や保存特性など の電池特性に悪影響を及ぼさなく、かつ過充電に対して は有効に作用する添加剤を用いて電池の安全性を確保で きるようにする。
【解決手段】  有機溶媒に溶質としてリチウム塩を溶解 した電解液に下記の化１１の一般式で表されるエーテル 誘導体が含有されている。ただし、化１１に示したＲ 1   はフェニル基、アリル基、アルキルフェニル基を示し、 Ｒ 2 は炭素数１〜６のアルキル基、フェニル基、アリル 基、アルキルフェニル基を示す。または、Ｒ 1 ，Ｒ 2 は連 結された５〜６員環エーテル化合物であり、Ｒ 1 ，Ｒ 2 の 少なくとも一方はアリール基を示す。
【化１１】
Patent JP-3001546-B1 (JP)
Title: 移動機のチャネル走査システム及びその方法並びにその制御プログラムを記録した記録媒体
IPC: H04W36/00
Filed: 1998-11-18
Granted: 2000-01-24
Abstract: 【要約】
【課題】  移動機の新たな接続先基地局のチャネル走査 に費やす時間を短縮し、チャネル走査の結果に基づき移 動機が把握している通信チャネルの状態と実際の通信チ ャネルの状態に生じる不一致の度合いを低減する。
【解決手段】  移動機が記憶部３２２に記憶している通 信をしたことがある基地局についての最新情報を利用し て、移動機が新たな接続先として選択する可能性の高い 基地局のチャネルに関して走査を行う様にして、チャネ ル走査の時間の削減を図る。
Patent JP-3032191-B1 (JP)
Title: 埋設物探知方法および埋設物探知装置
IPC: G01V3/00
Filed: 1998-12-17
Granted: 2000-04-10
Abstract: 【要約】
【課題】  金属探知機などの埋設探知手段を地表から所 定距離に維持しながら埋設物の探知がなし得る埋設物探 知方法および埋設物探知装置を提供する。
【解決手段】  埋設物探知センサ１２を有する探知部１ ０と、前記探知部１０を保持している保持部材５２を有 する保持装置２０と、前記保持装置２０を保持している 走行部３０とを有する埋設物探知装置Ａを用い、前記走 行部３０から前記保持部に伝達される振動を吸収しなが ら、前記埋設物探知センサ１２により埋設物の探知をな すものである。
Patent MD-3407-B1 (MD)
Inventor: STALEV Ivan
IPC: A01G3/02
Filed: 2005-12-29
Abstract: Inventia se refera la agricultura, in special la dispozitivele destinate pentru taierea ciorchinilor, fructelor, crengilor, strujenilor etc. Dispozitivul de taiere contine un corp-maner si cutite incrucisate, cuplate articulat pe o tija arcuita, amplasate in cavitatea corpului-maner si care interactioneaza cu el, pe suprafata plana a fiecarui cutit este executata o renura curbilinie, in cavitateacareia este amplasat cu joc un miez, fixat pe corpul-maner. Dispozitivul contine elemente de intercalare, care interactioneaza cu cutitele si sunt fixate  pe corpul-maner, executat din doua jumatati identice, iar peretii renurilor cutitelor incrucisate sunt executate paralel cu laturile cutitelor, care contacteaza cu elementele de intercalare. Miezurile plasate in cavitatile renurilor cutitelor incrucisate pot fi executate in forma de suruburi, iar elementele de intercalare - in forma de stifturi din material rezistent la uzura prin frecare.
Patent NO-331551-B1 (NO)
Inventor: HOLLY RICHARD D
IPC: A61K38/00
Filed: 2001-09-07
Abstract: There is provided a method of producing an antibody to an inoculated zalpha11 polypeptide comprising isolating an antibody elicited by the inoculated polypeptide, wherein the polypeptide is selected from the group consisting of: a) a polypeptide consisting of the amino acid sequence of SEQ ID NO: 72; b) a polypeptide consisting of the amino acid sequence of SEQ ID NO: 73.
Patent NO-329569-B1 (NO)
Inventor: LEIJON MATS
IPC: F03B13/18
Filed: 2004-03-26
Abstract: A wave power assembly having a hull and a linear electric generator. The rotor is connected to the hull by connection means so that lifting force is transferred from the hull to the rotor. Spring means exert a force on the rotor that is counter-directed the lifting force. The spring means is arranged to, at a motion amplitude corresponding to 50% of the maximum length of stroke of the rotor, exert a force, the size of which varies by a factor of 2.5 as a maximum. The invention also relates to a wave power plant built up from wave power assemblies according to the invention. Furthermore, the invention relates to a use of the wave power assembly and a method for the generation of electric energy.
Patent NO-322284-B1 (NO)
Title: System og fremgangsmate for reservering av konferanseressurser
Inventor: GRODUM NICOLAY
IPC: G06Q10/00
Filed: 2004-12-14
Abstract: Den foreliggende oppfinnelsen relaterer seg til styring og planlegging av videokonferanser. Den introduserer en ny mekanisme for å planlegge en virtuell ressurs forbundet til et enkeltindivid eller en gruppe av enkeltindivider. Den virtuelle ressursen er tilegnet til ett eller flere konferansesystemer i konferansestyringssystemet, og et objekt som representerer den virtuelle ressursen blir fremvist på en konvensjonell ressursplanleggingsapplikasjon (for eksempel "Microsoft Outlook") som tillater en bruker å undersøke den virtuelle ressursen, blant annet om i det minste ett av konferansesystemene er ledig eller opptatt. Brukeren er så i stand til å planlegge en konferanse med ressurser med et kjent planleggingsgrensesnitt, og uten å måtte vite med hvilke alternative konferansesystemer enkeltindividet eller gruppen av enkeltindivider er forbundet til den virtuelle ressursen er assosiert.
Patent NO-335519-B1 (NO)
Title: Fremgangsmåte for brønnkomplettering
Inventor: RICHARD BENNETT M
IPC: E21B43/04
Filed: 2005-05-11
Abstract: En fremgangsmåte for gruspakking som kombinerer frakturering, er beskrevet. En kanon som har et ytre vribor blir brukt til perforering. Med kanonen på plass blir grusen plassert omkring den og formasjonen blir frakturert for å skyve grusen inn i sprekkene. Kanonen blir rotert ut av grusen ved å bruke vriboret. En sil med et ytre vribor blir kjørt inn og rotert inn i den pakkede grusen i brønnhullet mens den samtidig vibreres. Etter at silen er ført på plass, blir vibratoren fjernet og en klaffventil blir lukket for å minimalisere fluidtap inn i formasjonen. En produksjonsstreng og en pakning blir festet i silen og produksjonen begynner.
Patent NO-338640-B1 (NO)
Inventor: MATSUBARA YOICHI
IPC: G01N33/58
Filed: 2005-06-06
Abstract: DNA amplification and hybridization are successively carried out in a reaction system containing primers for the DNA amplification and hybridization probes, followed by detecting the hybrid in the reaction solution by affinity chromatography, wherein at least one of the primers to be used in the DNA amplification is labeled with a first labeling agent so that the amplified DNA will be labeled with the first labeling agent, a hybridization probe is labeled with a second labeling agent and contained in a reaction solution for effecting the DNA amplification, the base sequence of the hybridization probe is designed not to inhibit the DNA amplification, and a hybrid is detected by affinity chromatography with the use of the first and second labeling agents.
Patent NO-338972-B1 (NO)
Inventor: KAROLIUSSEN HILBERG INGE
IPC: F16L19/02
Filed: 2006-10-18
Abstract: A tool for joining a coupling element, such as a flange to a pipe, wherein the coupling element surrounds the pipe and has grooves facing the pipe to receive a corresponding plurality of beads provided on the pipe. The tool has a plurality of axially separated, radially movable segments. Each segment has a plurality of circle sector formed ridges. The plurality of segments thereby provides circumferentially extending ridges that are capable of deforming a pipe wall by a first pressing action on the inside wall of the pipe to create on the outside of the pipe circumferential beads in the pipe wall and to cause these beads to extend into corresponding grooves in the coupling element. The segments also have circumferentially extending portions located adjacent and between the ridges. The extending portions in a second, subsequent passing action cause post-pressing of buckled-in areas that occur naturally in the pipe wall between and adjacent to the beads during the first pressing action, so that an outward tension is obtained in the pipe at the location of the coupling element.
Patent NO-334181-B1 (NO)
Title: Laftestokk for dobbel laftevegg
Inventor: SKARRA TORLEIF KRISTOFFER
IPC: E04B2/70
Filed: 2012-11-23
Abstract: Laftestokker (1) med tilstrekkelig bredde splittes ved ett (4) eller to (5,6) langsgående vertikale snitt til utvendige (2) og innvendige (3) laftestokker og eventuelt et mellomstykke (10). Snittet går skrått eller i en bue inn i og ut av stokken på stokkens innvendige side ved siden av indre avmerking for endelaftehalsene (8). Alternativt kan benyttes to halvstokker (37,38) med halve bredden av ovenfor nevnte laftestokk, der innvendig halvstokk deles i et midtstykke (39) og to endestykker (40) ved to skrå (41) eller buede (42) snitt som går inn fra innvendig side ved siden av indre avmerking for endelaftehalsene (43). Utvendig laftestokk eller utvendig halvstokk med påsatte endestykker fra innvendig halvstokk brukes til lafting av utvendig laftevegg (12), mens innvendig laftestokk eller midtstykket til innvendig halvstokk brukes til lafting av innvendig laftevegg (13). Utvendig laftevegg har hele, massive lafteknuter i laftestokkens fulle bredde, mens innvendig laftevegg har massive lafteknuter i halve bredden. Rommet mellom utvendig og innvendig laftevegg benyttes til isolasjon (14) og eventuelt fuktsperre (15) og vindsperre (16). Laftestokk og halvstokker gis ønsket utseende inkludert et fikseringssystem. Stokkene påføres nødvendige lafteskår, og laftehodene endekuttes (23,28). Det kan benyttes maskinlaftede stokker eller tradisjonelt håndlaft. Rommet mellom utvendig og innvendig laftevegg kan også benyttes til andre materialer, for eksempel brann- eller lydstoppende materialer.
Patent PL-158985-B1 (PL)
Title: System for controlling the rate of reversible movement of hydraulic drives
IPC: F15B13/01
Filed: 1988-03-16
Abstract: System for regulating the speed of reverse movements in hydraulic drives, consisting of a motor with constant or variable rotation, coupled to a hydraulic pump with respectively variable or constant delivery, and of final control elements, an oil tank, a distributor, an overflow valve and control valves, characterized in that a regulator (4) is connected to the motor (1) with hydraulic pump (1a), while the hydraulic pump (1a) is connected to the overflow valve (6) and via the distributor (3) to the control valves (2) and to the final control elements (5).<IMAGE>
Patent PL-157153-B1 (PL)
Title: Method of making magnetic cores
IPC: H01F/
Filed: 1988-06-22
Abstract: Manufacturing method for magnetic cores, in particular installed in transformer welding machines or transformer bonding machines, consisting in a multiple winding magnetic tape on a carcass, then annealing and cutting, characterised in that, if the magnetic core is cut at the angle of α = 1-5 degrees to the core's longitudinal axis, and then the upper core half (1) and the lower core half (2) are relocated of 1 to 10 mm to each other, and then the upper half (1) and the lower half (2) are strapped together using a clamping ring (3) and a screw (5), and both halves are shifted towards the longitudinal axis using pushing jaws (4).<IMAGE>
Patent PL-162665-B1 (PL)
Title: Interlocking device for a door latch
Inventor: KAWECKI JANUSZ
IPC: E05B17/20
Filed: 1989-12-05
Abstract: 1. Bolt lock for a door latch, attached outside of the latch, and stopping the bolt indirectly by means of components extending the bolt, whereas that lock is the pipe non-accessible from the outside, and in walls of that pipe, apertures are located that release the bolt after entering the end of the bolt extension into those aperures, characterized in that the extension of the bolt end(1) is a bracket (2) with a pin (3), and the pin axis is parallel to the bolt axis, and perpendicular to the tube (5) axis and the coaxial roller (4) locked with tube (5), [whereas the pipe tube is smaller than the lock travel (J), fited with 3 openings: the entry opening (5') connected with a duct (5'') finished with a small aperture (5'''), and the coaxial exit opening (5'''') along the common pipe (5) axis] in one point with the duct (5'') and the aperture (5'''), for entering thereinto at 90deg angle: the roller (4) [into openings (5') and (5'''')] and the pin (3) with neck (3') into the duct (5''), and the opening (5''').<IMAGE>
Patent PL-160850-B1 (PL)
Title: Double-telescope actuator of lining in mine
IPC: E21D15/50
Filed: 1989-12-28
Abstract: Dual telescope hydraulic cylinder for mine lining containing inside the cylinder a hydraulic gland and an upper prop with longitudinal opening in the wall and with a piston in the axis of which a piston rod is placed, inseparably joint with an eye, characterised in that the hydraulic gland (6) has internal conical surface (7) cooperating with the conical external surface (5) made on the cylinder (1) and on the end face (11) of the gland (6) directed to the piston has made at least one channel (12) preventing multiplication of pressure after a complete advancement of the upper prop (13) while the external diameter of the piston rod (16) is smaller than the external diameter of the eye (18).<IMAGE>
Patent PL-165534-B1 (PL)
Inventor: MACIEJAK TERESA
IPC: C08L95/00
Filed: 1991-05-09
Abstract: Środek do wytwarzania masy surowcowej do otrzymywania plasteliny, znamienny tym, że
składa się z 30 do 40% wagowych gaczu lekkiego o temperaturze krzepnięcia 42 do 45°C i
zawartości oleju od 6 do 8% wagowych, uzyskanego w procesie odparafinowania ciężkiego oleju
napędowego o granicach wrzenia 250-420°C przy użyciu rozpuszczalnika dwuchloroetan -
dwuchlorometan i z 25 do 35% wagowych gaczu ciężkiego o temperaturze krzepnięcia 58 do
65°C i zawartości oleju 6,5 do 18% wagowych, otrzymanego w procesie odparafinowania
rozpuszczalnikowego metodą dwuchloroetan-dwuchlorometan oleju klasy SAE-40 lub pozostałościowego
oleju typu brighstock oraz z 25 do 45% wagowych gaczu lekkiego o temperaturze
krzepnięcia 48 do 54°C i zawartości oleju 6 do 10% wagowych, uzyskanego z odparafinowania
olejów silnikowych klasy SAE-30 tą samą metodą i posiada temperaturę kropienia 55 do 65°C,
zawartość oleju nie większą niż 20% wagowych i liczbę kwasową nie większą od 0,5 mg KOH/g.
Patent PL-164882-B1 (PL)
Inventor: KONOPKA PIOTR
IPC: H01H75/10
Filed: 1991-07-04
Abstract: Wyzwalacz, zwłaszcza do wysokonapięciowych
wyłączników dużych mocy,
posiadający układ do pomiaru prądu i nastawiania
opóźnienia czasowego, rdzeń magnetyczny
z uzwojeniem pierwotnym,
oddziałujący na ruchomą zworę, połączoną
obrotowo z zaopatrzoną w segment zębaty
dźwignią wyzwalającą, blokowaną przez
krzywkę obrotową wraz z rolką blokującą
m zamocowaną na ramieniu obrotowym napinanym
sprężyną, przy czym krzywka posiada
2? oś zębatą, znamienny tym, że układ do pomiaru
prądu i nastawiania opóźnienia czasowego
stanowi blok pomiarowo-sterujący (1)
układu elektronicznego, którego blok wyko-
■f=· nawczy (2) kieruje działaniem elektromag-
__» nesu (3), a zwora elekromagnesu (18)
zaopatrzona jest w dwie zagięte końcówki,
końcówkę sprężystą (16) i końcówkę sztywną
(17), między którymi usytuowany jest
swobodny koniec ramienia obrotowego (13).
Patent PL-166388-B1 (PL)
Inventor: STUDENCKA BARBARA
IPC: C04B26/12
Filed: 1992-03-18
Abstract: 1. Zasadowa oc;łironnii masa ogniotrwała, zwłaszcza do kadzi pośredniej układu ciiją^łł^-
go odlewania stali, składająca się z zasadowego wypełniacza ziarnistego z dodatkiem glinokrzemianów
oraz spoiwa, znamienna tym, że jako spoiwo zawiera wiążącą kompozycję
substancji organicznych i nieorganicznych, zwłaszcza siarczanowo-boranową z dodatkiem
żywicy nowolakowej, przy czym zawartość żywicy w stosunku do spoiwa nieorganicznego
wynosi 0,2 - 1,5, korzystnie 0,3 - 0,8 albo mieszaninę siarczanu glinu ze szkłem krzemianowo-sodowym
o module wyższym niż 2,5, przy czym zawartość spoiwa siarczanowego w
stosunku do krzemianowego wynosi 0,2 - 1,0 korzystnie 0,3 - 0,5 oraz dodatkowo zawiera
materiały włókniste nieorganiczne i/lub organiczne w ilości 1-3% wagowych, a zawartość w
masie zasadowego wypełniacza ziarnistego o frakcji 0-3 mm i/lub 0-1 mm oraz frakcji
pylastej poniżej 0,09 mm wynosi 80-95% wagowych, natomiast składnika glinokrzemianowego
0,5 - 5% wagowych.
Patent PL-171898-B1 (PL)
Title: Method of obtaining a reipersible polymer of core/sheating type cement composition containing such polymer and method of modyfing cement compositions
Inventor: TSAI MIN-CHI
IPC: C08F2/00
Filed: 1992-07-10
Abstract: Redispersible polymer powders made by core-shell polymers having an alkali-soluble emulsion polymer shell and an aqueous-insoluble emulsion polymer core wherein the core and the shell polymers are chemically grafted by utilizing a polyfunctional compound are described. The core-shell polymers are produced by a two-stage sequential emulsion polymerization process in which an alkali-insoluble emulsion polymer core is polymerized in the presence of an alkali-solubilized emulsion polymer. When the core-shell polymer powders of this invention are employed as a cement modifier, improvements in the powder physical properties and cement mortar properties are realized.