[특허]Process for the admixture of additives into plastics with simultaneous removal of volatile constituents

Process for the admixture of additives into plastics with simultaneous removal of volatile constituents 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29B-001/04 B29B-001/10
출원번호	US-0564618 (1975-04-03)
우선권정보	DT-2417792 (1974-04-11); DT-2507061 (1975-02-19); DT-2509744 (1975-03-06)
발명자 / 주소	Wild Hans (Frankenthal DT) Jeckel Guenter (Landau DT) Echte Adolf (Ludwigshafen DT) Zizlsperger Johann (Schriesheim DT) Reffert Rudi Wilhelm (Beindersheim DT) Thielen Gunter (Ludwigshafen DT)
출원인 / 주소	BASF Aktiengesellschaft (Ludwigshafen DT 03)
인용정보	피인용 횟수 : 48 인용 특허 : 0

초록 ▼

A process for admixing additives to plastics and simultaneously removing volatile constituents in a horizontal devolatilizing extruder. Taken in sequence in the direction of flow, the additives are first introduced into the devolatilizing extruder from above, and the plastic melt, solution or dispersion is then introduced from below, while the bulk of the volatile constituents are withdrawn from the devolatilizing extruder at an orifice located vertically above the point at which the plastic is fed in. The process permits the removal of volatile constituents with simultaneous admixture of additives during aftertreatment of plastics, in a single step and at very high throughputs.

대표청구항 ▼

In a process for the admixture of additives to thermoplastically processable polymers containing volatile constituents, with simultaneous removal of the volatile constituents, through separately feeding additives and a polymer melt, solution or dispersion into a horizontal devolatilizing screw extruder, and then heating, mixing and conveying the charge whilst vaporizing the volatile constituents, and finally extruding the mixture, the improved steps taken in sequence in the direction of flow along the extruder which comprise: first introducing the additives downwardly into the extruder from above; then introducing the polymer in a liquid form as said melt, solution or dispersion, preheated to a temperature of from 150°to 250°C, upwardly into the extruder from below under a pressure which corresponds at least to the vapor pressure of the volatile constituents at the temperature concerned, thereby immediately vaporizing said volatile constituents; simultaneously withdrawing at least 50 percent of the volatile constituents upwardly from the extruder at an orifice located approximately vertically above the point at which the polymer is being introduced from below; and advancing the polymer forwardly from its point of introduction under shear by the screw so that the cooling of the polymer due to said vaporization is compensated by the simultaneous heating of the polymer in the screw extruder which is increased by transfer of shear energy from the screw.

이 특허를 인용한 특허 (48)

Gannon Oliver Keith, Addition of additives to polymeric materials.
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Rossiter Paul H. (Royersford PA), Apparatus and method for extracting fluid from an extruded material.
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McCullough Robert W. (Riverside CT) Peoples Clarence A. (Rockwell NC) Sacks Maurice J. (Denver NC) Adams Ronald L. (Mahwah NJ) Kapfer Klaus (Ramsey NJ) Talbott Graham M. (Concord NC), Apparatus and method of extrusion.
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Raufast Charles (Saint Julien les Martigues FRX), Apparatus for degassing and pelleting polyolefins.
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Mewes Heinz (Troisdorf-Spich DEX) Nachtigall Wilhelm (Troisdorf-Eschmar DEX) Wienand ; deceased Michael (late of Siegburg DEX) Wienand ; legal representative by Anneliese (Siegburg DEX) Wienand ; hei, Apparatus for the incorporation of glass fibers into thermoplastic synthetic resins.
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Eaton, Gerald B.; Trainor, Patrick, Bulk polymerization reactor methods.
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Rossberger Erwin (Grossdingharting DEX) Weinmaier Josef (Pullach DEX) Ailler Nikolaus (Egling DEX), Degassing device on a worm extruder.
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Leonard William K. (Troy Township ; St. Croix County WI) Mody Kirit C. (Shoreview MN) Rolando Richard J. (Oakdale MN), Double-sided pressure-sensitive adhesive tape and method of making.
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Hepke, Harald, Gear extruder having gas vent ports.
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Thomson Bruce J. (Epping AUX), Incorporation of liquid additives into polymeric films.
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Harmuth Charles M. (Wilmington DE), Melt-blending method of forming pigmented powder coatings.
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Burt James G. (Oxford PA), Method and apparatus for recovering blowing agent from scrap foam.
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Burt James G. (Oxford PA) Franklin Boyd M. (Blowing Rock NC), Method and apparatus for recovering blowing agent in foam production.
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Lilly Robert L., Method for producing polymeric fibers with improved anti-static properties and fibersand fabrics produced thereby.
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Ladney ; Jr. Michael (18125 E. Ten Mile Rd. East Detroit MI 48021), Method of manufacturing structural foam plastic products free from undesirable contaminant constituents.
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Shimizu Shizuo (Higashi JPX) Abe Shunji (Higashi JPX) Matsuda Akira (Higashi JPX), Method of producing partially crosslinked rubber-resin composition.
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Maeda Hirofumi (Takatsuki JPX) Akamatsu Naruhiko (Berchem BEX), Method of recovering volatile foaming agent from prefoamed beads of polyolefin resins.
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Godfrey Jack F. (Hazlehurst GA) Grant Charles L. (Hazlehurst GA), On-line reclaim method.
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Lieberman Mark, Painted plastic material recycling process.
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Fogle, Raymond E.; Calvert, Troy D.; Carben, Zachary J.; Manning, Steven C.; Wang, Chie H.; Wheeler, Paul A.; Zabcik, J. Marty, Polymerization coupled compounding process.
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Fogle, Raymond E.; Calvert, Troy D.; Carben, Zachary J.; Manning, Steven C.; Wang, Chie H.; Wheeler, Paul A.; Zabcik, J. Marty, Polymerization coupled compounding process.
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Guntherberg Norbert,DEX ; Hofmann Jurgen,DEX ; Mailahn Elmar,DEX ; Ohlig Hilmar,DEX, Preparation of thermoplastics.
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Guntherberg Norbert,DEX ; Hofmann Jurgen,DEX ; Ohlig Hilmar,DEX ; Mailahn Elmar,DEX ; Bus Klaus,DEX ; Czauderna Bernhard,DEX ; Grabowski Sven,DEX, Preparation of thermoplastics.
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Guntherberg Norbert,DEX ; Hofmann Jurgen,DEX ; Ohlig Hilmar,DEX ; Mailahn Elmar,DEX ; Bus Klaus,DEX ; Czauderna Bernhard,DEX ; Grabowski Sven,DEX, Preparation of thermoplastics.
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Kolouch Robert J. (Vienna WV) Michel Rudolph H. (Wilmington DE), Process for extruding a modified high molecular weight poly(ethylene terephthalate) resin.
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Plamthottam Sebastian S. (Pasadena CA) McFeaters Earl W. (LaCrescenta CA) Ozari Yehuda (Arcadia CA), Process for making high performance pressure sensitive adhesive tapes.
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Koenig Scott R. ; Godavarti Shankar ; Williams Rodney K., Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component.
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Chang Hui (Pittsford NY) Sokol Jeffrey H. (Rochester NY) Leonardo Joseph L. (Penfield NY), Process for preparing toner particles.
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Kuwahara Shojiro,JPX ; Higuchi Yasushi,JPX ; Hieda Shinichi,JPX ; Kurokawa Masahiro,JPX, Process for producing a copolymer.
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LaRose Joseph Arthur ; Overholt Eric Alan ; Schnieders Lawrence Joseph, Process for producing polymer films from aqueous polymer compositions.
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LaRose Joseph Arthur ; Overholt Eric Alan ; Schnieders Lawrence Joseph, Process for producing polymer films from aqueous polymer compositions.
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Vyvial Rudolf (Ludwigshafen DEX) Taubitz Christof (Wachenheim DEX) Schlemmer Lothar (Maxdorf DEX) Bleckmann Gerhard (Lampertheim DEX) Zuerger Manfred (Sinsheim DEX) Krieger Heinrich (Telgte DEX) Thie, Process for producing sheet-like structures from vinyl alcohol polymers.
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Wisner Ralph, Process for removing deleterious surface material from polymeric regrind particles.
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Koyama,Yoshinari, Process for removing volatile components in polyarylene sulfide.
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Schwemler, Christoph; Lüdeke, Martin; Kords, Christian; Rudolf, Reiner, Process for the compounding of polymers.
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Isozaki Tsuyoshi,JPX ; Kurokawa Masahiro,JPX, Process for the preparation of powder coating composition.
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Isozaki, Tsuyoshi; Kurokawa, Masahiro, Process for the preparation of powder coating composition.
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Dhein Rolf (Krefeld DEX) Meier Helmut M. (Hattingen DEX) Meissner Hans J. (Krefeld-Bockum DEX) Kircher Klaus (Leverkusen TX DEX) Oels Udo (Baytown TX), Process for the preparation of shaped articles of stabilized polycarbonate by the devolatilizing injection-moulding or d.
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Raufast Charles (Saint Julien les Martigues FRX), Process of degassing and pelletizing polyolefins.
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Yeh, Richard Cheng-Ming; Datta, Sudhin, Processes for producing polymer blends and polymer blend pellets.
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Deal Michel,FRX ; Van Meyel Christian,FRX, Removal of gaseous phase from continuous mixing chamber for rubber compound.
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Lewellen Philip C. (Houston TX) Son Jaime S. (Houston TX), Screw extruder apparatus adapted for mixing additive fluids.
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Hillebrecht, Annemarie; Stueven, Uwe; Van Miert, Leo; van Esbroeck, Dominicus; Brian, Bernd; Chszaniecki, Siegfried, Use of an apparatus for adding at least one additive to a receptor interior.
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Jeffrey R. Shutic ; John F. Carlson ; Thomas E. Hollstein ; Keith E. Williams ; Ernest J. Fena ; Harry J. Lader, Vehicle powder coating system.
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Shutic Jeffrey R., Vehicle powder coating system.
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Shutic, Jeffrey R.; Carlson, John F.; Hollstein, Thomas E.; Williams, Keith E.; Fena, Ernest J.; Lader, Harry J., Vehicle powder coating system.
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Shutic,Jeffrey R.; Carlson,John F.; Hollstein,Thomas E.; Williams,Keith E.; Fena,Ernest J.; Lader,Harry J., Vehicle powder coating system.
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Shutic,Jeffrey R.; Carlson,John F.; Hollstein,Thomas E.; Williams,Keith E.; Fena,Ernest J.; Lader,Harry J., Vehicle powder coating system.
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Process for the admixture of additives into plastics with simultaneous removal of volatile constituents 원문보기

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