MyLiterature

Publications

HJG Consulting

H.-J. Graf, Introduction to TPEs; in C. Lipincott, P. DiMauro, M. Raymond, Thermoplastic Elastomers (TPE) Compendium of Thermoplastic Elastomers - Articles from 2008 - 2017, Publishers: Rubber World Magazine 2018 / TechnoBiz Com. Ltd&Co.

Understanding of Rubber Injection Moulding, H.-J. Graf, Author, Published by TechnoBiz Communications Co. LTD, Bangkok, Thailand, March 2018

H.-J. Graf, Review of Rubber Mixing: Effect on Polymer / Compound Performance; Paper presented at Europe Rubber Industry Forum 2017, 10-11 May, Vienna, Austria

H.-J. Graf, Operating Window in Injection Molding with 9 Experiments; Presented at IRC 2016, October 24-28, 2016, Kitakyushu, Japan

H.-J. Graf, Evaluation of Computer Aided Rubber Compound Development; Presented at IRC 2016, October 24-28, 2016, Kitakyushu, Japan

Cost-Reduction in Rubber Processing, H.-J. Graf, Editor, Published by TechnoBiz Communications Co. LTD, Bangkok, Thailand, March 2014

H.-J. Graf, Determination of the Shortest Possible Vulcanization Time in Injection Moulding; paper presented at Rubber Moulding ASIA 2014, March 13., Bangkok, Thailand

H.-J. Graf, A new Tool for a Systematic Development and Improvement of Compounds; paper presented at 183. Meeting Rubber Division of ACS, April 22.-24.2013, Akron, OH

H.-J. Graf, Prinicples of Adhesion; paper presented at the DKG Nord, December 6-7. 2012, Hamburg, Germany

H.-J. Graf, H. Magg, E. Osen, C. Thomas, TPE versus Rubber: Friendly or Unfriendly Competition; Paper presented at DKT 2012,July 2-7, Nuremberg, Germany

H.-J. Graf, Simulation Tool in Tire Compound Development using Compound Database; Paper presented at Tire Industry Tech 2012, 7-8 March, Bangkok, Thailand

H.-J. Graf, Advantage of Compound Development with the PC-program "GrafCompounder"; Paper presented at Rubber Compounding Asia 2012, 5-6 March, Bangkok, Thailand

WOCO GmbH & Co. KG

J. Albrecht, J. Ziegler, H.-J. Graf, Elastomer Applications in Seals for Drinking Water [GE], GAK 6/2018, Vol 71, pp 246 - 249

H.-J. Graf, Biokunststoffe / Lebensmittel ein Wettbewerb? (Biopolymers/Food a competition?) Paper presented at 2. Werkstoff Seminar, Forum Werkstoffe, 15.07.2011, Rotenburg, Germany

H.-J. Graf, J. Ziegler, Welche Herausforderungen verbergen sich unter dem Begriff "Green Rubber Industry" für einen Formartikel-Hersteller, Paper presented at DKG 2011, 23.-24. May, Fulda, Germany

H.-J. Graf, Grenzschichthaftung Wirkmechanismen, Paper presented at 1. Werkstoff Seminar, Forum Werkstoffe, 16.07.2010 Rotenburg, Germany

H.-J. Graf, Systematic Recipe Developments increases Technological and Economical Advantages, Paper presented at the IRC'09 (International Rubber Conference), Nuernberg, 29.June - 2.July 2009

H.-J. Graf, Overdue Developments in the Area Machine / Material / Mould / Process: Where is the progress. DKT (German Rubber Conference), 2006 Nuernberg, July 3.-6., Germany

Cooper Standard Automotive (Canada) Ltd

H.-J. Graf, J. Seward, Extruder: a look in the Black Box, Paper presented at the IRC'03 (International Rubber Conference), 2003 Nuernberg, June 30. - July 3., Germany, published in KGK 04/2004

A. Bacciarelli, S. Yu, H.-J. Graf; Low Molecular Weight Paraffinic Oils in EPDM Sponge and Dense Applications; Paper presented at the RDofACS Meeting, San Francisco, April 28. - 30., CAL; published in Rubber & Plastic News, Oct. 6, 2003 pp 34 - 41

S. Yu, H.-J. Graf, L. Di Agnillo; Challenges for EPDM: An Investigation about the Stability of EPDM Polymers in the Hot Air Oven and in the Mixer, Paper presented at the KHK (Kautschuk- Herbst-Kolloquium), Hannover, 30. Oct. - 1. Nov. 2002, Germany , to be published in GAK.

S. Yu, H.-J. Graf, Y. Feng, L. Di Agnillo; Challenges for EPDM: Paper presented at the Automotive Elastomer Conference 2002, June 18-19 Dearborn, MI

H.-J. Graf, J. Seward; The Extrusion Process from the Viewpoint of a Technical Rubber Goods Producer, Paper presented at the International Conference Mini Derucom and Prodesc, Paderborn Jan. 9 - 10, 2002, Germany

H.-J. Graf, T. Dendinger, R. Magill; Injection Molding of Elastomers - Process Model with Statistic Experimental Design, Paper presented at the RDofACS Meeting, April 4-6, 2000, Dallas, Texas

H.-J. Graf, E. Sayej, Reversion Resistance of Engine Mounts: Combination of Physical and Chemical Protection Open New Fields for Natural Rubber, Paper presented at the Meeting of the RDofACS, September 21 - 24, 1999, Orlando, Fl

S. Yu, H.-J. Graf, G. Choonoo, C. Bitsakakis, Magnetic Coating for Primary Vehicle Door Seals with Improved Sealing Performance, Paper presented at the Meeting of the RDofACS, September 21 - 24, 1999, Orlando, Fl

H.-J. Graf, C. Bitsakakis, Achievement of Equal Product Standards as a Challenge for a Global Operating supplier to the Automotive Industry, Paper presented at the Rubber Symposium of the Countries around the Danube, April 23 to 24, 1999, Vienna, Austria

Rhein Chemie Rheinau GmbH

H.-J. Graf, Wirtschaftliche Prozessgestaltung beim Spritzgiessen von Elastomeren. Teil 1: Die Plastifizierphase, Gummi Asbest Kunststoffe, 2, 1999, 52, s. 104 - 108

T. Frueh, H.-J.Graf, U. Dinges, Uniform Cure and Physical Properties in thick NR-Compounds using Dithiophosphate Vulcanization Systems, Paper presented at International Rubber Conference IRC'97, Nuernberg, Germany, 1 - 4 July, 1997

T. Hanel, H.-J. Graf, Covulkanisation von NBR/EPDM - Blends mit Dithiophosphatbeschleu-nigern, Vortrag gehalten anlaesslich der Herbsttagung der Bezirksgruppe Rheinland Westfalen der DKG, Oktober 1996

H.-J. Graf, A. Johansson; Discussion on the Resistance to Reversion of Natural Rubber with the help of Thiophosphate Cure systems, Paper presented at International Rubber Conference IRC'96, Manchester, UK, 17 - 21 June, 1996

T. Kleiner, H.-J. Graf; Praktische Ansatzpunkte zum problemlosen Einsatz von Kautschukchemikalien, Vortrag anlaewwlich eines Workshops des DIK, Hannover, 30.-31. Mai, 1996, Germany

H.-J. Graf, A. Johansson; Discussion on the Resistance to Reversion of Natural Rubber with the help of Thiophosphate Cure, Paper presented at a Meeting of RD of ACS, Montreal, Canada, May 5. -8., 1996

H.-J. Graf, H.-M. Issel, A. Kuehnberger; Einsatz, Leistungsspektrum und Wirkungsmechanismus von Verarbeitungswirkstoffen in Kautschukmischungen, Kautschuk Gummi Kunststoffe, 49, 3(1996) S 210 - 218

H.-J. Graf, K. Knörr; Beschleunigersysteme fuer Spritzgiessmischungen, Vortrag gehalten auf der Rubbercon, Goeteborg, Schweden, 9 - 12. Mai, 1995, publiziert GAK Gummi Fasern Kunststoffe, 48 11(1995) S. 783 - 790

T. Kleiner, H.-J. Graf; Praktische Ansatzpunke zur Entwicklung von Ersatzstoffen fuer Gummichemikalien, Vortrag gehalten anlaesslich der Betriebsraetetagung "Gesundheitsschutz in der Gummiindustrie" 12. - 13. Juni, 1995, Hannover, Germany

H.-J. Graf; Tagungsbericht: Technologie der Profilextrusion von Kautschukmischungen, DIK Workshop, Hannover, 7.-8. Oktober 1994, Germany

H.-J. Graf, H.-M. Issel; Neue Beurteilung der Dithiophosphate im Zusammenhang mit Beschleunigern, die keine N-Nitrosamine bilden, Vortrag gehalten anlaesslich der DKT´94, Stuttgart, Germany, 27.- 30. Juni, 1994, publiziert in Kautschuk Gummi Kunststoffe 48 9(1995) S 600 - 605

H.-J. Graf, A.J. Johansson; Some Forgotten Accelerators: The Thiophosphates - Helpful in the Design of Nitrosaminefree Accelerator Systems; Paper presented at the 144 'nd Meeting of RD ACS, Oct. 26.-29., 1993, Orlando, Florida, published in Rubber World 212 5(1995) p. 30 - 34, 80-81

H.-J. Graf, A.J. Johansson, W. Lesch; Successful Strategies to Prevent Dangereous N-Nitrosamines in Rubber; Paper presented at the 144 'nd Meeting of RD ACS, Oct. 26.-29., 1993, Orlando, Florida

T.J. Leo, H.-J. Graf, W. Lesch; Cure Systems to eliminate N-nitrosamines, Rubber & Plastics News May 24 (1993) p. 15 - 16

H.-J. Graf, Praxisrelevante Strategien zur Vermeidung gefährlicher N-Nitrosamine bei der Vulkanisation von Elastomeren: Wirkung der Beschleunigerkomponenten / Inhibitoren auf die Mischungseigenschaften, Vortrag gehalten anlaesslich der Tagung der Bezirksgruppe Sued/Suedwestdeutschland, 26/27 November 1992, Wuerzburg, publiziert in Kautschuk Gummi Kunst-stoffe 46 6(1993) S 486 - 491

T.J. Leo, A.J. Johansson, H.-J. Graf, W. Lesch, A New Generation of Cure Systems to Eliminate Carcinogenic N-Nitrosamines, Paper presented at 142'nd Meeting at RD of ACS, Nov. 3.-6., 1992, Nashville, Tennessee

S.K. Bose, P. Krutki, H.-J. Graf, H. Kleinknecht, W. Lesch, The benefits of Rhenogran Geniplex-80: A new additive for the rubber Porcessing Industry, Poster presented at the International Rubber Conference Rubbercon'92, Brighton UK

H.-J. Graf, H. Kleinknecht, W. Lesch, Eine neue Generation von Beschleunigersystemen - frei von gefaehrlichen N-Nitrosaminen, Vortrag anlaesslich der Tagung der DKG-Bezirksgruppe Rheinland/ Westfalen am 8.5.1992, Bad Honnef

M. Abele, H.-W. Engels, H.-J. Graf, Nitrosamine: Beeinflussung durch geschicktes Compounding, Postervortrag anlässlich der Internationalen Kautschuk Tagung IKT'91, 24.-27. Juni, Essen, Deutschland

H.-J. Graf, H. Kleinknecht, K.-H. Menting, Unterdrückung von gefährlichen Nitrosaminen mit Hilfe von Scavengern, Postervortrag anlaesslich der Internationalen Kautschuk Tagung IKT/IRC-91, 24.-27. Juni, Essen, Deutschland

Klöckner Ferromatik Desma GmbH

M. Karabacak, G. Hellberg, H.-J. Graf, R. Kruska, K. Eichner, Prozessregelungsstrategie zur vorausbestimmung der Artikelqualitaet bei Aenderung der Maschineneinstellung bei Spritzgiessverfahren fuer Elastomere, Vortrag anlaesslich der Internationalen Kautschuk Tagung IKT/IRC'91, 24.-27. Juni, Essen, Germany, publiziert in Kautschuk + Gummi Kunstst. 45 9(1992), S.712-720

H.-J. Graf, G. Hellberg, The Calculation of Kinetic Processes in Thermally Crosslinking Moulding Compounds Giving Special Consideration to Finite Element Programs (FEM), Paper presented at the International Rubber Conference IRC'90, June 12.-14., 1990, Paris, France.

H.-J. Graf, Improving the Injection Moulding Process via Processability Analysis of Injection Molding Machine and Injection Process. Papaer presented at Akron Mold '89, September 9, 1989, University of Akron, Ohio

H.-J. Graf, Praktische Hinweise zur Auslegung von Werkzeugen fuer das Spritzgiessverfahren, DESMA Firmenschrift anlaesslich der K'89, Oct. 89

H.-J. Graf, Spritzgiessmaschinen und Methoden zum Direktansohlen fuer Mehrfarbsohlen und Gummiâ-Polyurethan Verbundsohlen. Vortrag gehalten auf dem Symposium Boijnice, 16/17 November 1989, CSFR.

H.-J. Graf, G. Hellberg, M. Karabacak, H. Werner, SPC in der elastomerverarbeitenden Industrie aus der Sicht des Maschinenherstellers, Vortrag, anlaesslich der "International Rubber Conference" IRC Rubber '89, CSFR, Prague, 28. Aug.- 1. Sept. 89

H.-J. Graf, G. Hellberg, W.P. Lauhus, H. Werner, Prozessnahe Pruefung der Verarbeitbarkeit von Elastomermischungen; Einsatz einer zur Laboreinheit modifizierten Standardspritzgiess Maschine vertikaler Bauweise, Kunststoffe 79, 5(1989), S. 394-402 (German Plastics, 79, 5(1989), S. 7-11 (eng.)

H.-J. Graf, Precision-lnjection-Moulding of Rubber Articles with Simple and Complicated Shape, (eng.) Vortrag gehalten auf der Rubbercon/Rubberex '88, Sydney, Australia

H.-J. Graf, M. Karabacak, Praezisionsspritzgiessen durch Zuhaltung, Werkzeugkonzeption und Prozessregelung, Poster, praesentiert anlaesslich der Deutschen Kautschuktagung DKT '88, 4.-7. Juli, Nuernberg, Germany

H.-J. Graf, Im Spritzgiessverfahren austriebfrei hergestellte Formartikel aus Elastomeren, in Spritzgiessen von Gummi Formteilen, VDI-Verlag, 1988, Duesseldorf, S. 65-84

H.-J. Graf, S. Tarka, Process Control and Evaluation in Accordance with Automotive Requirements, (eng.) Rubber World 197 (1988), 6(March), S. 25-30, 64

H.-J. Graf, S. Tarka, Valuation of Process Control and Regulation with the Knowledge Gained an the DESMA 966.053 Test Machine in Accordance with the Quality Requirements of the Automotive Industry, Paper presented at 132nd Meeting of the RD of ACS, Oct. 6.-9., 1987, Cleveland, Ohio

H.-J. Graf, A Comparasion of High-Pressure and Low-Pressure Processing of RIM-PUR Systems in Shoe Manufacturing: Factors Influencing Material Poperties, Proceedings of the FSK/SPI, September 29.- October 2., 1987, Aachen, Federal Republic Germany, p. 590-595

H.-J. Graf, K. P. Richter, Injection Moulding Process for Plastic-Rubber Applications, (eng.), Paper presented at the International Rubber Conference Rubbercon/Rubberex'87, 1.-5. June 1987, Harrogate, UK

H.-J. Graf, W. P. Lauhus, A Laboratory Unit for Obtaining Realistic Processing Data for Elastomer Injection Moulding, Processes, Poster presented at the 3rd Annual Meeting of Polymer Processing Society, April 7-10, 1987, Stuttgart, Germany

H.-J. Graf, W. P. Lauhus, Prozessregelung beim Elastomerspritzgiessen: Die Bedeutung konstan-ter Prozessparameter zur Herstellung von Elastomer-Formteilen definierter Qualitaet. Firmenschrift DESMA GmbH, Oktober 1986

H.-J. Graf, W.P. Lauhus, Prozessregelung beim Elastomerspritzgiessen (deutsch), Kunststoffe 76 (1986), s. 1024-27 (German Plastics 76 (1986) 11, p. 15-17 (eng.)

H.-J. Graf, Injection Moulding of Rubber Articles without any Flash, Paper presented at the SKZ, Wuerzburg, Germany, 1986, published in Kautschuk Gummi Kunststoffe 40(1987), 9, p. 829-836

H.-J. Graf, R. Ricci, Doing the Two Step: Cooperation on Shoe Soles, Urethanes Technology, Vol. 3, 3(1986), p. 27-30

H.-J. Graf, R. Ricci, Optimization of Equipment and Materials for Moulding Soles of Athletic and Performance Shoes, Paper presented at the 129nd Meeting of RD of ACS, April 8.-11., 1986, New York

H.-J. Graf, Quality Production of Articles by the Injection Moulding Process by Means of Exact Process Control and Mould Design, (eng.) Paper presented at the meeting of the RD of ACS, Oct. 1985, Cleveland, Ohio

H.-J. Graf, Verfahrens- und Werkzeugauslegung beim Spritzgiessen duennwandiger Elastomerartikel, Vortrag anlaesslich des IX Mezina Rodna Gumarenska Symposium 8.-10. October 1985, Kunststoffberater, 7/8/1985, S. 31-33

F. Gierschewski, H.-J. Graf, Darstellung eines modernen Spritzgiessverfahrens zur vollautomatischen Herstellung unvernetzter Fromteile, Poster auf der internationalen Kautschuktagung IKT'85, vom 25.-27.Juni, Stuttgart.

F. Gierschewski, H.-J. Graf, Qualitaetserzeugung von Artikeln im IM - Verfahren mittels genauer Prozessfuehrung und Werkzeugauslegung, Vortrag, anlaesslich der internationalen Kautschuktagung IKT'85, vom 25.-27.Juni, Stuttgart; Kautschuk + Gummi,Kunststoffe 39, 6(1986), S. 524-527

Institute for Macromolecular Chemistry University Freiburg

G. Wegner, G. Arndt, H.-J. Graf, M. Steinbach, Energy Transfer in the Solid State Photopolymerizsation of Diacetylenes, in Reactivity of Solids, Editors J. Wood, O. Lindquist, C. Helgesson, Plenum Press, 1977

B. Tieke, H.-J. Graf, B. Naegele, H. Ringsdorf, A. Banerjie, D. Day, J.B. Lando, Polymerization of Mono- and Multilayer forming Diacetylenes, Colloid and Polymer Science, 255, 6(1977), p. 521-531

Lectures


"Workshop - Advanced Compounding": A three day seminar organized by Technobiz-Asia, Rubber-Industry-Academy, Bangkok, Thailand, since 2013

"Compounding", "Injection Molding", "Extrusion" and "Adhesion": A one week seminar organized by Technobiz-Asia, Rubber-Industry-Academy, Bangkok, Thailand, since 2010

"Compounding" and "Adhesion - Chemistry and Technical Realisation": Courses for Students at the Continuing Education Courses in Rubber Technology at the Leibniz University of Hannover in cooperation with the DIK, Germany, 2009 - 2013

T. Duever, H.-J. Graf, D. Schramm, T. Wember, Workshop DoE - Statistic Experimental Design, IRC'09 (International Rubber Conference), Nuernberg, Germany, 29.June - 2.July 2009

"Rubber and Rubber Processing Technology": Full course for Graduate Students at Polymer Engineering Department, University of Waterloo, Ontario, Canada in 2002 and 2003

"Injection Moulding Process": Part of a 4 week educational course in "Elastomer Technology" at DIK (Deutsches Institut fuer Kautschuk Technologie), Hannover: Injection Molding of Elastomers. This course was held approx. 3 times a year during a 10 year period from 1986 to 1996

Coauthor

W. Hofmann: Rubber Technology Handbook, Gupta Verlag Germany, "Compounding of Rubber" Dr. Gupta Publisher, Ratingen 2001

Supervision of Diploma-Thesises

W.P. Lauhus

Investigation of elastomer mixtures (NBR, NR/SBR, EPDM, NR) useful in a plunger injection molding machine with a plastication unit as laboratory equipment for the determination of rheological and process parameters.

University GH Paderborn, Fachbereich 13 / Naturwissenschaften II, Prof. P.B. Vezin, 16.2.1987

G. Hellberg

Calculation of the cinetic of thermo crosslinkable mixtures in moldings under consideration of finite element programs.

Thesis for the Diploma at the University Hamburg, Fachbereich Informatik, 1989. Prof. Dr. K. Brunnstein

A. Kuenberger

The influence of process aids on the rheological properties of elastomeric mixtures.

Thesis for the Diploma at the Fachhochschule fuer Technik, Mannheim, 1994 Prof. Dr. Ing. M. Lempp

K. Mattern

Influence of different elastomeric compounds on the injection molding process and the vulcanizate properties.

Thesis for the Diploma at the Fachhochschule Hannover, Fachbereich Maschinenbau, 1995 Prof. Dr. G. Haussmann

N. Kreuzwieser

Possibilities of reducing mixing energy by usage of process aids regarding the quality of the extrusion of tread compounds.

Thesis for the Diploma at the Fachhochschule fuer Technik, Mannheim, 1996 Prof. Dr. Ing. H. Goebel

M. Oertel

Selection criteria for the usage of process aids in elastomer mixtures of different polymers regard to the mixing and extrusion process.

Thesis for the Diploma at the Fachhochschule fuer Technik, Mannheim, 1996 Prof. Dr. Ing. M. Lempp

Th. Wilhelmsmeyer

Process Analysis of an Extruder for Rubber.

Thesis for the Diploma at the University GH - Paderborn, Paderborn, 1999, Prof. Dr. Andreas Limper

P. F. Happy

Investigation into the Application of a Computational Fluid Dynamic Analysis on the Standard Products World Technology Extrusion Head.

Thesis written at Kettering University, Flint, Michigan, 2000, Faculty Advisor: Karim J. Nasr.

B. Muth

Investigation of the Residence Time Distribution in Extruders for Rubber Processing,

Thesis for the Diploma at the University GH-Paderborn, Paderborn, Germany, 2000, Prof. Dr.Andreas Limper

D. Heinrich

Process Analysis of Optimized Screw Concepts of Continuos Rubber Self-Sealing Profiles,

Study Work written at the University GH-Paderborn, Paderborn, Germany, 2002, Prof. Dr. Andreas Limper

T. Gonder

Replacement of Steel by Plastic in a Carrier for Sealings.

Thesis written at Kettering University, 2003, Faculty Advisor Prof. Trevor Harding

F. Türk

Activation of Fillers in High Molecular EPDM with Regard to Mechanical Properties and Fatigue Life in Dynamic Application

Diploma Thesis at Fachhochschule Mannheim, 2006, Prof. Dr. Hartmut Schulz

J. Hölzer

Influence of the Acidity of Fillers and on the Properties of Vulcanizates.

Diploma Thesis at the Fachhochschule Aachen, 2007, Prof. Dr. Thomas Mang

Wisnu Mardhika Putera

Dependence of Network Homogeneity on the Process Conditions of Injection Moulding with Elastomers,

Diploma Thesis at University of Applied Sciences Darmstadt, 2007, Prof. Dr. Helmut Schlüter

M. Winkler

Development of an Compound based on EPDM without Plasticizer

Diploma Thesis at University of Applied Sciences Münster, 2008, Prof. Dr. Hermann Büttner.

Thesis for the Doctor Degree

G. Hellberg

Construction of a Control System for the Regulation of an Injection Molding Machine for the Production of Elastomer Articles.

University Hamburg, Fachbereich Informatik, Prof. Dr. Brunnstein.

This Work was supported as AIF Forschungsvorhaben at DIK, Hannover, from 1990 until 1995

Updated: 18. July 2018