序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
101 Synthetic resinous tube US418204 1973-11-23 US4101699A 1978-07-18 Clifford R. Stine; Jennings A. Boyce
A synthetic resinous tube having a plurality of bonded coaxial layers with at least one layer being thermoplastic and another substantially non-thermoplastic is formed by the simultaneous coaxial extrusion of thermoplastic tubes and electron irradiation of one of the layers of the tube to convert it from a thermoplastic resin.
102 Wire coating using a liquid polymer US728345 1976-09-30 US4098861A 1978-07-04 Giovanni Bassani
In accordance with a preferred embodiment of this invention there is provided a method and apparatus for coating a wire or cable with a thermosetting polymer formed from a "liquid polymer" system such as a two-component polysiloxane. This system may be characterized as having two components each having a low viscosity and which when mixed react quickly to form the cross-linked polysiloxane rubber.
103 Process for preparing impact resistant styrene polymers US590571 1975-06-26 US4007234A 1977-02-08 Horst-Dieter Schuddemage; Horst Jastrow; Harry Barth
There is disclosed a process for preparing impact resistant styrene graft copolymers having improved properties, especially a high gloss. They are obtained by polymerizing a solution of an ethylene/propylentercomponent rubber in a mixture of styrene and acrylonitrile in one step (mass polymerization) or two steps (mass/suspension polymerization) in the presence of an organic peroxide and submitting the polymer to a two step extrusion, the first step being carried out at temperatures of from 130.degree. to 240.degree. C, the second step at temperatures of from 200.degree. to 280.degree. C, and providing that during the second extrusion step a quantity of about 0.05 to about 0.5% by weight of the organic peroxide is still present.
104 Process of continuously blending, molding and curing heat curable polymeric compounds US426964 1973-12-20 US3979488A 1976-09-07 Milton Sharples Greenhalgh; Ray Clarence Lever
A process of increasing the output and other efficiencies and benefits in continuous extrusion manufacturing operations, including blending and plasticizing, molding to shape and curing heat curable polymeric compounds to a thermostat condition. The process comprises the continuous coincidental mixing and heating of heat curable polymeric compounds, raising the temperature thereof up to substantially the level of their curing temperatures, and the consecutive forming to shape and curing of the shaped polymeric compounds to a thermostat condition. The process is primarily carried out within an extruder or equivalent continuous forming apparatus, and any additional heat needed to achieve or accelerate the attainment of curing temperatures, or to complete the conversion to a cured thermoset condition of the polymeric compounds can be readily applied by any external source of heat. This process is especially suitable and effective in the manufacture of elongated electrical conductors or wires coated or insulated with thermosetting polymeric materials or compositions comprising the same. The invention also includes a novel apparatus for the effective and complete performance of the process.
105 Apparatus for manufacturing polyolefin-insulated cables US50183474 1974-08-29 US3909177A 1975-09-30 TAKAOKA MICHIO; OSHIMA HIROTO; KATSUHARA TOSHIHARU; ONO MOTOYUKI; SANO HIDEO; SEKI MASAICHIRO; HASEGAWA MASAKAZU
An apparatus for manufacturing hardened polyolefin-insulated cables comprising a hardenable polyolefin-extruding device, a tube partitioned into heating and cooling zones by way of a certain partition area, for example, an area composed of a seal packing, the two zones being filed with circulating silicone oil and constituted of different circulating systems, through which the polyolefin-covered cable core is drawn, and a die provided at the other end of the curing tube and connected to a super-cooling device, where the pressurized oil is super-cooled to increase its density to such extent that the clearance between the outer surface of the cable core and the inner wall surface of the passage in the die is sealed.
106 Insulated cable with layer of controlled peel strength US40656473 1973-10-15 US3876462A 1975-04-08 CARINI FRANCIS F; ABBOTT STEVEN
A high voltage electrical cable having at least two layers of cross-linked polyolefin insulation, i.e. polyethylene; the external layer being semi-conductive and strippable from the internal layer. Controlled strippability is accomplished by sulfonating the respective layers at their contact interface.
107 Production of electrical conductors covered with crosslinked material US31555672 1972-12-15 US3868436A 1975-02-25 OOTSUJI MASAAKI; MATSUI MASATAKE; FUWA MASARU; TAKAHASHI KIYOSHI
In the production of cables covered with a cross-linked material by feeding a conductor and a cross-linkable material covering the conductor through a long land portion of an extruding die unit, the length and the operational temperature in the land portion being selected so that the cross-linking reaction is substantially completed within the land portion, and cooling the cross-linked material within a cooling device housing a pressurized cooling fluid therein, an improved process within the aforementioned feeding of the conductor is carried out under a braking force counteracting a pull generated along the cable by the pressurized cooling fluid.
108 Manufacture of insulated electric cables US3737490D 1970-12-09 US3737490A 1973-06-05 NICHOLSON P
A COMPOSITE COVERING COMPRISING AT LEAST TWO LAERS OF DIFFERENT COVERING MATERIALS IS EXTRUDED ON A CONTINUOUSLY ADVANCING CORE BY PASSING THE CORE THROUGH THE CORE TUBE OF AN EXTRUSION MACHINE WHICH FEEDS EXTRUDED, PERIPHERALLY CONTINUOUS LAYERS OF THE COVERING MATERIALS SIMULTANEOUSLY TOWARD THE OUTLET END OF THE EXTRUSION MACHINE AND CAUSING THE EXTRUDED LAYERS TO COME INTO COMPLETE AND INTIMATE INTERFACIAL CONTRACT UPSTREAM OF THE OUTLEN END OF THE EXTRUSION MACHINE. THE COMPOSITE COVERING SO FORMED IS TREATED, E.G. CURED, CONTINUOUSLY BY PASSING THE COVERED CORE THROUGH A CHAMBERHERMETICALLY SEALED TO THE OUTLET END OF THE EXTRUSION MACHINE AND CONTAINING A FLUID MEDIUM AT SUPER-ATMOSPHERIC PRESSURE. AT THE SAME TIME, FLUID UNDER PRESSURE IS INJECTED INTO THE INTERIOR OF THE CORE TUBE AND IS MAINTAINED AT A PRESSURE LESS THAN THAT OF THE FLUID MEDIUM BY AN AMOUNT SUCH THAT THE PRESSURE DIFFERENCE ACROSS THE EXTRUDED COMPOSITE COVERING AT THE EXTRUSION ORIFICE IS SUFFICIENT TO CAUSE THE EXTRUDED COMPOSITE COVERING TO COLLAPSE FIRMLY ON TO THE CORE AS IT EMERGES FROM THE EXTRUSION MACHINE.
109 Insulated electrical cables and method of making them US3725230D 1971-03-29 US3725230A 1973-04-03 BAHDER G; GARNER O; EAGER G
THIS APPLICATION DISCLOSE INSULATED ELECTRICAL CABLES AND METHOD OF MAKING THEM. THE CABLES CONSIST OF METALLIC CONDUCTORS STRANDED OR SOLID, A SEMI-CONDUCTING SHIELD OVER THE CONDUCTOR, A COMPARATIVELY HEAVY WALL OF INSULATION AND ANOTHER LAYER OF SEMI-CONDUCTING SHIELD WHICH, IF USED IN SUFFICIENT THICKNESS, MAY SERVE BOTH AS A SHIELD AND AN OUTER PROTECTIVE JACKET. THE CABLES ARE IRRADIATED IN A PARTICULAR CONTROLLED MANNER TO IMPROVE DESIRED PHYSICAL CHARACTERISTICS WHILE PRESERVING DESIRED INSULAATING CHARACTERISTICS. THE INVENTION IS PARTICULARLY APPLICABLE TO HIGH VOLTAGE CABLES RATED 5 TO 70 KV. OR ABOVE.
110 Apparatus for extruding and applying plastic materials US3568250D 1969-04-28 US3568250A 1971-03-09 PAYNE LE ROY
AN EXTRUDER APPARATUS FOR PLASTIC MATERIALS HAVING AN ELONGATED EXTRUSION CHAMBER ON A HOLLOW FEED SCREW MOUNTED WITHIN THE CHAMBER. MATERIAL ENTERS ONE END OF THE CHAMBER THROUGH A HOPPER AND EXITS FROM THE OPPOSITE END OF THE CHAMBER. ADDITIONAL MATERIAL MAY BE PLACED IN THE CHAMBER THROUGH A CHECK VALVE WHICH IS OPERATED BY THE FEED SCREW. THE DIAMETER OF THE FEED SCREW IS SMALLER THAN THE DIAMETER OF THE CHAMBER AT THE ENTRANCE TO THE CHAMBER AND THE FEED SCREW INCREASES IN DIAMETER TOWARD THE EXIT END OF THE CHAMBER. THE EXIT END HAS A DISCHARGE SLOT WHICH IS ALIGNED IN PARALLEL RELATION TO THE LONGITUDINAL AXIS OF THE CHAMBER. THE SLOT INCREASES IN WIDTH IN THE DIRECTION AWAY FROM THE CHAMBER.
111 Method of making an insulated sodium cable US3534132D 1967-05-09 US3534132A 1970-10-13 BAILEY CARL A; ISAACSON RAYMOND E
112 Extruding molding compounds US3461490D 1967-01-30 US3461490A 1969-08-19 COTTINGHAM ROBERT A
113 Method of manufacturing electric wires covered with plastics US3455752D 1965-11-29 US3455752A 1969-07-15 GRAY ALVIN N; TAMURA YASUYA; SHIBATA KOJIRO; NAKAYAMA REIKICHI
114 Equipment for making plastic articles US42724465 1965-01-22 US3284852A 1966-11-15 BOGGS LE ROY R
115 Equipment for making articles composed of fiber reinforced resin materials US28826563 1963-06-17 US3256559A 1966-06-21 BOGGS LE ROY R
116 Extrusion process for making propellant grains US2664960 1960-05-03 US3155749A 1964-11-03 ROSSEN JOEL N; RUMBEL KEITH E
117 Extrusion of thermosetting polymeric materials US84472159 1959-10-06 US3054142A 1962-09-18 HINDERER ROBERT F; MULLEN JOSEPH A
118 Polyethylene containers US687360 1960-02-05 US3033238A 1962-05-08 KOSEWICZ JOHN S
119 Thermo-molding apparatus US41338354 1954-03-01 US3002248A 1961-10-03 WILLSON CORWIN D
120 Manufacture of pencils and other shaped articles US60023656 1956-07-26 US2988784A 1961-06-20 ZAREH LORENIAN
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