baber/WOPTO huggingface dataset:
Patent KR-890004846-B1 (KR)
Title: Pickup tube
Inventor: DAKAYAMA SIGEHIKO
IPC: H01J29/46
Filed: 1986-04-09
Granted: 1989-11-29
Abstract: The image pick-up tube comprises a tube containing at one end of an electron gun for generating an electron beam and a target provided at the other end of the tube from the electron gun so as to be scanned with the electron beam.  An electrostatic deflection electrode is provided on the inner surface of the tube for generating an electrostatic field which deflects the electron beam to effect the scanning.  A mesh electrode is interposed between the tubes, includes a circuit for generating a magnetic field which focuses the electron beam on the target and which is distributed on the axis of the tube to have a peak of intensity.
Patent KR-900001948-B1 (KR)
Title: Curable composition
Inventor: AI HIDEO
IPC: C08G73/10
Filed: 1986-04-28
Granted: 1990-03-26
Abstract: A curable organic solvent-soluble polyimide compsn. contains polymerizable initiator and is useful for forming heat resistant printable films.  The compsn. comprises (a) curable polyimide soluble in organic solvents and (B) a polymerization initiator as essential components.  The polyimide consists of repeating units represented by the formula (I; X1,X2,X3,X4= tetravalent carboxylic or heterocyclic residue; Y1,Y2,Y3= divalent carboxylic or heterocyclic residue; at least one of Z1,Z2= a residue having a reactive C=C; l,m,n=0-20).
Patent KR-900001315-B1 (KR)
Title: Substituted phenoxyalkyl isoxazoles and furans
Inventor: DIANA GUY D
IPC: A61K31/425
Filed: 1986-07-01
Granted: 1990-03-08
Abstract: The method for preparing phenoxyalkylisoxazol substituted for new hetero cycle and furan comprises; (a) adding 14.7g of 5-[5-(2, 6- dichloro-4-oidophenoxy) pentyl -3-methylisoxazol, 2.96g of sodium azide and 0.32g of ammonium chloride to 150ml of dimethylformamide and mixing: (b) heating the above mixture at 100oC for 24 hrs and vaccum-concentrating: (C) dissolving the above concentrates in ethyl acetate and washing with 2N HCl; (d) drying organic layer of above soltion with magnesium sulfate and vaccum-concentrating.
Patent KR-900002822-B1 (KR)
Title: Process for the preparation of 2-hydronyproply alginate
Inventor: CHONG PIL-CHO
IPC: C07D407/12
Filed: 1986-10-16
Granted: 1990-05-01
Abstract: A process for prepg. 2-hydroxypropyl alginate comprises (a) extracting Na-Alg from Phaeophyceae with Na2CO3 and gelling by the conventional sulfuric acid method, (b) partially neutralizing, semi- drying and pulverizing to obtain fabric-like alginic acid gel contg. 65-80% solid matter, and (c) reacting with gaseous 1,2-epoxyalkane by the dry method.
Patent KR-940011889-B1 (KR)
Inventor: CASEY ROBERT F
IPC: H04N5/21
Filed: 1986-10-30
Granted: 1994-12-27
Abstract: 내용 없음.
Patent KR-890000900-B1 (KR)
Title: Apparatus for mixing ice-cream and chocolate
Inventor: HONG HYUON-JUN
IPC: A23G9/32
Filed: 1986-12-17
Granted: 1989-04-13
Abstract: A cylindrical, rotary mixer for mixing ice-cream and chocolate is provided.  In the device, several nozzles (6) having an opening at one side of an end are provided within the rotary mixer (7) and communicate with the chocolate hopper (2) through the communicating tubes (5).  The rotatory mixer is rotated by the peripheral gear at 50-100 rpm.
Patent KR-930000730-B1 (KR)
Title: Method of communications between register modelled radio device
Inventor: SMITH PAUL F
IPC: H04B1/40
Filed: 1985-11-01
Granted: 1993-01-30
Abstract: A register-modelled radio system comprising a plurality of register-modelled processors having addressable registers for modelling the virtual state of the processor; a serial bus, interconnecting the register-modelled processors for communicating between the addressable registers; and a communications protocol for passing information to or from the addressable registers, whereby the virtual state of a radio portion may be determined or altered by, respectively, communicating information from or to the addressable registers. The communications protocol further comprises an information packet having an address, an operation code, optional data, and an error detection device, such as a cyclical redundancy check packet. The operation code is chosen from the group of primitive operation codes reset, read, write, bit set, bit clear, acknowledge, and negative acknowledge.
Patent KR-950008677-B1 (KR)
Inventor: NARABU TADAKUNI
IPC: G11C19/28
Filed: 1987-01-26
Granted: 1995-08-04
Abstract: 내용 없음.
Patent KR-940009783-B1 (KR)
Inventor: TRUBANTI LUIGI
IPC: C07D451/10
Filed: 1987-02-11
Granted: 1994-10-17
Abstract: 내용 없음.
Patent KR-890003729-B1 (KR)
Title: Electron gun for brown tube
Inventor: CHO SOK-RAE
IPC: H01J29/48
Filed: 1987-02-28
Granted: 1989-09-30
Abstract: The electron gun comprises a cathode (K) emitting electron, the first grid (1) controlling a quantity of the electron, the second grid accelerating the velocity of the electron and a grid for connector. The second grid is composed of the first material that electron-beam passes through the hole and of the second material whose horizontal length is longer than the vertical length.  The gun minimizes the ratio and the variation of the focus voltage against the variation of beam-current.
Patent KR-940000527-B1 (KR)
Inventor: MORINAGA GENJO
IPC: C12G3/04
Filed: 1987-05-06
Granted: 1994-01-24
Abstract: 내용 없음.
Patent KR-900007512-B1 (KR)
Title: Process for the preparation of 3,3-dimethyl-4-pentenoic acid
Inventor: KIM YONG-JU
IPC: C07C57/03
Filed: 1987-08-24
Granted: 1990-10-11
Abstract: 3,3-Dimethyl-4-pentenoic acid of formula (I) is prepd. by reacting a mixture of isoprenol and prenol (the molar ratio is pref. 9.5:0.5- 4:6) with triethylorthoacetate (TOA) of formula (II) in the presence of catalyst e.g. H, Pd, Se or an acid to form ester cpd. of formula (III), and hydrolyzing (III). In (III), R is 3-methyl-3-butenyl or 3- methyl-2-butenyl. Pref. the acid catalyst is phenol, benzoic acid, phosphoric acid, p-toluenesulfonic acid or methylacetic acid.
Patent KR-900003231-B1 (KR)
Title: Crt control circuit
Inventor: KIM JU-EUN
IPC: G06F3/153
Filed: 1987-08-29
Granted: 1990-05-11
Abstract: The circuit applies load latch signal (TLD) to a parallel/serial converter (8) at PC mode and load latch signal (TLD) to a P/S converter (18) at every 12 dot, 18 dot, or 24 dot according to the mode characteristic signals (M0,M1) at TTX mode by mixing display enable signal (DISPEN) from 4 CRT controller (2), mode characteristic bit signal from a character load latch (6), and PC/TTX signal so that the Hangul and Chinese letters are displayed by ems and English letter and numbers are displayed by half em or 3/4 em.
Patent KR-910004669-B1 (KR)
Title: Sulfone peroxycarboxylic acids
Inventor: DYROFF DAVID R
IPC: C07C409/42
Filed: 1987-11-02
Granted: 1991-07-09
Abstract: There are disclosed novel, highly stable sulfone peroxycarboxylic acids useful in detergent compositions alone or as bleaching agents which are represented by the formula <CHEM> wherein A and B are organic moieties bonded to the sulfur atom by a carbon atom and at least one of A and B containing at least one   - @-OOH group bonded to a carbon atom. ulfon
Patent KR-930004622-B1 (KR)
Inventor: NAKANE TOSHIO
IPC: C08G63/00
Filed: 1987-11-17
Granted: 1993-06-02
Abstract: 내용 없음.
Patent KR-970007954-B1 (KR)
Title: Fabrication toy set of tree form
Inventor: YENS NIGADE GUDSEN
IPC: A41G1/00
Filed: 1987-11-25
Granted: 1997-05-19
Abstract: A toy building set for building tree-like models and comprising partly a trunk element (fig. 2), partly a branch element. The trunk element comprises a trunk portion (2) and projecting branches (3, 4) having coupling means (5, 6) spaced from the trunk portion (2). The branch element comprises a plurality of connecting bars (7-11), at whose ends coupling bushings (12) are provided. These bushings are formed with primary and secondary coupling means (17, 18), respectively, so that the branch elements may be interconnected and connected with the trunk elements. Preferably, said bars have additional branching portions (19, 20) whose ends are provided with bushings (21, 22) similar to the coupling bushings (12).
Patent KR-900008489-B1 (KR)
Inventor: ONO MITSUYA
IPC: F04C18/344
Filed: 1987-12-26
Granted: 1990-11-22
Abstract: 내용 없음.
Patent KR-900004169-B1 (KR)
Title: Gas valve seat for lighter manufacture process and device
Inventor: SOK YUN-KI
IPC: F23Q2/16
Filed: 1988-04-29
Granted: 1990-06-18
Abstract: The valve seat made of copper or copper alloy is located under the valve nozzle which vaporizes liquefied gas of the disposable gas lighter and controls a quantity of gas discharge. The valve seat is manufactured by plastic machining e.g. cold working instead of complex cutting. The manufacturing device includes fist forming die (1), and second forming die (2). The first forming die (1) has first pin hole (7) with taper part (7') having reduction hole (7a) and blowhole (7b), second pin hole (10) with ejecting pin (11), and third pin hole (13).
Patent KR-920004545-B1 (KR)
Inventor: KISHISHITA RYUTARO
IPC: A63F3/00
Filed: 1988-05-19
Granted: 1992-06-08
Abstract: 내용 없음.
Patent KR-910007100-B1 (KR)
Inventor: KITAGAWA KUNIO
IPC: H01L21/30
Filed: 1988-05-30
Granted: 1991-09-18
Abstract: 내용 없음.
Patent KR-960008798-B1 (KR)
Title: Method and apparatus for installing automobile glazing
Inventor: HEINZ KUNERT
IPC: B60J1/00
Filed: 1988-07-09
Granted: 1996-07-05
Abstract: A process is described for installing an automobile glazing by direct gluing in which an extrusion nozzle deposits an adhesive mass in bead form on one of two surfaces to be glued. The bead can either be used directly for gluing or, after hardening, act as a profile placed on glazing which is used as an intermediary between the glazing and a second gluing bead. Embedded within the bead are a plurality of high tensile strength flexible wires. During the removal of the glazing the wires are used to shear the bead where they have been introduced, i.e., either in profile or in the second gluing bead. The wires are positioned so that each has to shear only a part of the section of profile or of the bead.
Patent KR-960005376-B1 (KR)
Inventor: MATSUMURA GEN
IPC: H02P6/06
Filed: 1988-08-11
Granted: 1996-04-24
Abstract: 내용 없음.
Patent KR-920002062-B1 (KR)
Inventor: OKAWA YOSHIO
IPC: B01D53/50
Filed: 1988-09-16
Granted: 1992-03-10
Abstract: 내용 없음.
Patent KR-920008345-B1 (KR)
Title: Aromatic polyester and process for preparing the same
Inventor: PARK HO-JIN
IPC: C08G63/133
Filed: 1988-09-23
Granted: 1992-09-26
Abstract: A aromatic polyester polymer  (intrinsic  viscosity  1.5-2.5, melting point 260-320 deg.C) of formula (I) is prepared by  mixing and copolymerizing telomer of formula (II),  bisphenol  derivative of formula (III) and terephthalic acid derivative of formula  (IV) under the nitrogen atmosphere at 250-290 deg.C. In the formula,  X is H, methyl, phenyl, Cl or Br; R and R' are H or  acetyl;  R"  is OH, phenoxy or methoxy; A is -O-, -SO2- or -C(CH3)2-; k is integer of 1 to 200; 1 is integer 0 to 200 and k/(k+1) = 0.1-1.0,  1/(k+1) = 0- 0.9. The aromatic polyester has an  exellent  moldability  and mechanical property.
Patent KR-970003686-B1 (KR)
Inventor: YUI YASUJI
IPC: G03D13/00
Filed: 1988-11-28
Granted: 1997-03-21
Abstract: 요약없음
Patent KR-910008514-B1 (KR)
Inventor: FUJI SHINJI
IPC: H03K3/02
Filed: 1988-11-29
Granted: 1991-10-18
Abstract: 내용 없음.
Patent KR-940001835-B1 (KR)
Title: Picture-in-picture controller for luminance and charoma discriminating unit
Inventor: SHIM DAE-YUN
IPC: H04N5/45
Filed: 1988-12-31
Granted: 1994-03-09
Abstract: The complex video signal is converted into a digital signal and is modulated, processed to Y, R-Y, B-Y signal in the picture in picture (PIP) control circuit. The PIP control circuit includes a lowpass filter (70) for extracting a brightness signal (Y) from a complex video signal, a band pass filter (80) for extracting a color (C) signal from the complex video signal, a demodulator (40) for demodulating the R-Y, B-Y signal from a color signal (C), a R-Y latch (50) for latching the R-Y signal generated by the demodulator (40), a B-Y latch (60) for latching a B-Y signal generated by the demodulator (60), a first register (10) for storing the complex video signal temperary, a second register (20) for storing the brightness signal (Y) generated by the low pass filter, and a third register (30) for storing the color signal (C) generated by the bandpass filter.
Patent KR-940002070-B1 (KR)
Inventor: FIEDLER CHRISTIAN
IPC: F28D7/02
Filed: 1987-09-28
Granted: 1994-03-16
Abstract: 내용 없음.
Patent KR-910006140-B1 (KR)
Title: Method for executing water proofing work
Inventor: KO KWANG-HEUI
IPC: E04D11/02
Filed: 1989-04-15
Granted: 1991-08-16
Abstract: A water proofing construction method comprises (a) coating  a liquid water proofing agent (I) on  the  surface  of  concrete  or mortar, (b) coating a seal film-water proofing agent (II)  on  the liquid water proofing layer, (c) sticking a polypropylene  net  or textile on the seal film layer, and (d) coating the agent (II)  on the net or textile. the agent (I) is obtained by adding a  soluble fatty adic soap soln. to  the  precipitated  mixt.  contg.  copper fluosilicate,  aluminium  sulfate,  copper  (or   iron)   sulfate, Na2O.3SiO2- Na2O.4SiO2 and talc. The seal film has a good  weatherand chemical- resistance.
Patent KR-910007693-B1 (KR)
Title: Cable connecting insulated unit detecting system and method
Inventor: KWON HYUK-SAM
IPC: G01R31/12
Filed: 1989-05-31
Granted: 1991-09-30
Abstract: The   testing   apparatus   for   cable   connector   tests withstand-voltage of polyethylen high-voltage cable.  The  testing apparatus    of    insulated    unit    consists    of     cicular insulated-supporter (6) formed with concave groove  (3)  at  upper seat, cylindrical metal electrode (5) fixed on  insulating  member (2) by lower flange (6), rubber resin of siliconec series (9), and insulated unit (10). The inner of insulated unit includes  mercury or water of electroconductive fluid.
Patent KR-910006816-B1 (KR)
Title: Installations of electric cables in the sea-botton
Inventor: LEE SANG-GYUN
IPC: H02G1/10
Filed: 1989-06-27
Granted: 1991-09-02
Abstract: The  sea-bed  ploughing  equipment  is   used   for   laying communication cable or electric  power  line  on  relatively  hard sea-bed such as a base rock and a clayed bed mixded with  pebbles. The ploughing equipment comprises a body coupled  to  a  submarine vehicle, a multiple of screws (4) equidistantly coupled  with  the longitudinal direction of the body, an opening part  (38)  through which the screws are exposed to be in contact  with  the  sea-bed, cutting bits positioned on the circumference  of  the  screws,  an hydraulic  motor  (42)  for  rotating  the  screws,  a   pair   of water-pressure pipes having jet nozzles (32a) on  either  side  of the screws and a pipe (34) for discharging the ploughed  earth  or rock.
Patent KR-920010178-B1 (KR)
Inventor: SAOTOME YOSHIMI
IPC: E02F9/22
Filed: 1989-08-30
Granted: 1992-11-19
Abstract: 내용 없음.
Patent KR-930010299-B1 (KR)
Inventor: GIL MICHAEL J
IPC: G10K11/00
Filed: 1989-09-29
Granted: 1993-10-16
Abstract: 내용 없음.
Patent KR-970005327-B1 (KR)
Inventor: KURONO MASAYASU
IPC: A61K33/24
Filed: 1989-11-15
Granted: 1997-04-15
Abstract: 내용없음.
Patent KR-0140214-B1 (KR)
Inventor: TSUNO SHINGO
IPC: C08G18/80
Filed: 1989-11-28
Granted: 1998-06-15
Abstract: 내용 없음.
Patent KR-0135074-B1 (KR)
Inventor: WATANUKI MINORU
IPC: G03F7/20
Filed: 1989-11-30
Granted: 1998-04-20
Abstract: 내용없음.
Patent KR-920009857-B1 (KR)
Title: Swaging tool
Inventor: HYATT ARTHUR J
IPC: B21D39/04
Filed: 1989-12-26
Granted: 1992-11-02
Abstract: A swaging tool (10) is provided for swaging a fitting and joining two tubes together, especially fittings in difficult-to-access areas. A removable head (60) of the tool (10) holds a first die (20) stationary with respect to a second die (18) moved toward the first die (20) by a double piston arrangement within the tool cylinder (53). The head (60) is slideably removable directly from the cylinder (53) by a tongue (76) and groove configuration on the head (60) and cylinder (53), respectively, which further includes head alignment means to ensure proper orientation of the dies (18, 20).
Patent KR-970004024-B1 (KR)
Inventor: WADANUKI MINORU
IPC: H05K3/00
Filed: 1990-02-12
Granted: 1997-03-24
Abstract: 요약 없음
Patent KR-930002629-B1 (KR)
Inventor: KISHI HIROSHI
IPC: C04B35/468
Filed: 1990-02-27
Granted: 1993-04-06
Abstract: 내용 없음.
Patent KR-920007868-B1 (KR)
Title: Concentration measuring apparatus for ionic water
Inventor: SAITO SHIRO
IPC: C02F1/00
Filed: 1990-04-30
Granted: 1992-09-18
Abstract: An apparatus for setting the ion concentration in an ionic water generator which separates a drink water between an alkaline ionic water and an acidic ionic water by applying a DC voltage between the electrodes in an electrolytic cell which are partitioned by an ion-exchange membrane, the apparatus comprising a device for measuring the voltage drop between specific portions which lead into the electrolytic cell which is caused when a reference voltage is applied, and a calculator for calculating the voltage Vx which is applied to the electrolytic cell to adjust the ion concentration to a desired value from the proportion k of the voltage drop between the specific portions caused by the application of the reference voltage to a water being examined to the reference voltage drop between the specific portions caused by the application of the reference voltage to reference water and a set voltage Vn which corresponds to the desired ion concentration on the basis of the following equation: Vx = k x Vn
Patent KR-930000928-B1 (KR)
Inventor: ISOZUMI SHUJO
IPC: F02N15/06
Filed: 1990-05-28
Granted: 1993-02-11
Abstract: 내용 없음.
Patent KR-0129771-B1 (KR)
Inventor: ERRNST RICHARD JOHN
IPC: B05C5/00
Filed: 1990-06-29
Granted: 1998-04-08
Abstract: 내용 없음.
Patent KR-100221555-B1 (KR)
Inventor: ARATO TOSHIAKI
IPC: H05B3/18
Filed: 1990-06-30
Granted: 1999-09-15
Abstract: 본 발명은, 에어플로우센서, 음극선관 음극가열용 히터 등에 사용되는 무기절연히터로서, 절연층 전체의 무기절연입자의 분포를 균일하게 함으로써, 높은 온도, 강한 진동에서도 절연층 내의 균열 등의 발생이 저감할 수 있고, 히터의 단선 또는 절연파괴가 일어나기 어렵고, 수명이 긴 무기절연히터에 관한 것이다.
Patent KR-930010778-B1 (KR)
Inventor: YAMADA YOSHIKO
IPC: H04L1/24
Filed: 1990-09-07
Granted: 1993-11-10
Abstract: 내용 없음.
Patent KR-0151551-B1 (KR)
Inventor: ROBISON GARY LEE
IPC: G02F1/1333
Filed: 1989-10-04
Granted: 1999-05-15
Abstract: 내용 없음.
Patent KR-0166589-B1 (KR)
Title: Fastening element
Inventor: FISCHER ARTUS PROF DR H C
IPC: E04F13/08
Filed: 1991-01-15
Granted: 1999-05-01
Abstract: 2.1. Fastening elements having an expanding cone and an expanding element which can be pushed thereon can be anchored in a positively locking manner in drilled holes having undercuts. In the case of drilled holes having a very small drilled hole depth, special requirements are placed on the fastening elements. 
<??>2.2. A fastening element (5) is proposed especially for the fastening of facade plates, on the expanding cone (6) of which fastening element (5) there rests a ring (7), which is bent in a roof shape, as the expanding element. For anchorage in the drilled hole, the ring (7) is pushed onto the expanding cone (6) and is largely pressed flat thereby, lateral edges of the ring (7) being braced on the wall of the drilled hole. 
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Patent KR-930010673-B1 (KR)
Title: Extrinsic gettering method using oxygen ion implantation
Inventor: KIM CHUNG-HYON
IPC: H01L21/322
Filed: 1991-01-15
Granted: 1993-11-05
Abstract: The extrinsic gettering by  oxygen  implanting  on  the  back surface of wafer is accomplished by ion implanting O+ or  O2  etc. on the back surface of wafer, treating at 800 deg.C for 30 minutes in an inert gas atmosphere or an oxidation atmosphere  to  oxidize the implanted oxygen and  to  form  an  oxide  defect  layer.  The process removes the heavy metal ion or the lattice defect  in  the wafer and makes a purer wafer, and makes the  after  process  easy and accurate.
Patent KR-100203217-B1 (KR)
Title: Method for the manufacture of contact lenses, and contact lens production system
Inventor: HOPER PETER
IPC: B23K26/082
Filed: 1991-01-23
Granted: 1999-06-15
Abstract: A process for the production of contact lenses, especially individually adapted contact lenses, and a contact lens preparation system for this, in which the topography of the eye surface is measured three-dimensionally, the geometry of the rear surface of the lens is determined for adaptation to the measured topography, the optical effect of a tear lens produced between the rear surface of the lens and the eye surface is determined, the geometry of the front face of the lens is established taking account of the optical effect of the tear lens and of the viewing correction to be achieved, and the data obtained in this way for the lens geometry at the front and rear surfaces of the lens are stored and transmitted to a control device for producing the lens in a processing machine. 
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Patent KR-950000700-B1 (KR)
Inventor: FUJIWARA KENJI
IPC: C07C227/40
Filed: 1991-05-27
Granted: 1995-01-27
Abstract: 내용 없음.
Patent KR-940009330-B1 (KR)
Inventor: MATSUMOTO SADAYUKI
IPC: H01J61/76
Filed: 1991-06-05
Granted: 1994-10-06
Abstract: 내용 없음.
Patent KR-930007832-B1 (KR)
Title: Method for preparation of synthetic fiber having superior absorption property
Inventor: KIM CHAN-YONG
IPC: D01F11/00
Filed: 1991-08-28
Granted: 1993-08-20
Abstract: The method for preparing the synthetic fiber, which is chosen from the   polyamide,   polyester,   polyurethane,     polyurea, polyethylene,   polyvinyl   chloride,   polyvinylidene   chloride, polyfluoroethylene,  polyvinyl   alcohol,   polyacrylonitrile   or polypropylene group comprises: integrating  1-60  wt.%  of  sodium chloride per the synthetic fiber into  the  synthetic  fiber;  and finishing with water to dissociate, thus eliminate sodium chloride out  of  the  fiber,  so  that   create   random   micropores   in perpendicular direction to the fiber axis.  The  average  particle diameter of integrated sodium chloride is 0.1-10 micron.
Patent KR-940001770-B1 (KR)
Title: Azabicyclo compound derivatives
Inventor: KIM WAN-JU
IPC: C07D401/04
Filed: 1991-10-15
Granted: 1994-03-05
Abstract: Azabicycloamine compounds and their salts of formula (I) are prepared. In the formula (I), R=H or amine protecting groups; R1,R2=H, lower alkyl, acyl, substituted (or unsubstituted) benzoyl, or naphtoyl, alkoxycarbonyl or substituted (or unsubstituted) benzyloxycarbonyl; n = 1-4. (I) are useful as intermediates in the preparation of antibacterial quinolone carboxylic acid derivatives, cephalosporin antibiotics and other drugs.
Patent KR-950003153-B1 (KR)
Title: Glass fibre reinforced impact strength polypropylene resin composition
Inventor: JO KWON-JE
IPC: C08L23/12
Filed: 1991-11-05
Granted: 1995-04-01
Abstract: The glass fiber reinforced polypropylene resin compsn. comprises: 50-89 wt.% of polypropylene risn; 10-30 wt.% of glass fiber; and 1-20 wt.% of carboxyl gp. treated propyleno homopolymer as a coupling agent. Pref. the melt index of the polypropylene resin is 5-20 degree of polymerization the melt index is measured by ASTM D 1238 method at 230≰C and 2,160 g. The glass fiber is surface-treated with 1 wt.% of silane based cpd.. The coupling agent is prepd. by adding below 10 wt.% of the ore more selected from acrylic acid, maleic acid, phthalic acid or benzoic acid an hydride or derives. of their carboxylic acid with polypropylene homopolymer.