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Prof. Ken Lewtas

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Prof. Ken Lewtas
Visiting Professor
PhD, CSci, CChem, FRSC

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Research Summary
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Fundamentals of phase changes, especially crystallization.

Polymer science, chemistry and processing. The creation and use of novel polymers and polymer additives to improve polymer properties and processing.

 

Career History & Selected Publications
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(coauthors are given where applicable)

U of Liverpool / Roche Pharmaceuticals:

  • Abraham & Thomas. NMR investigation into complex formation between psychotropic drugs and aromatic solutes. J. Chem. Soc. Perkin Trans. 2, pp1964-71, 1977.
Esso Chemicals (UK):
  • Lit: Beiny & Mullin. Crystallization behaviour of nC32 from hydrocarbon solution with polymeric additives. J. Cryst. Growth, 102, 4, pp801-6, 1990.
  • Lit: Bennema, Liu & Tack. Morphology of orthorhombic long chain normal alkanes: Theory and Experiment. J Cryst Growth, 121, 4, pp679-96, 1992.
  • Patent: Tack & Brazier. Glycol ester flow improvers for distillate fuels. USP 4464182.
  • Patent: Tack. Additive combinations and fuels containing them. USP 4261703.
  • Patent: Specific crystallizable polymers for middle distillate compositions with improved low temperature properties. USP 4661121.
  • Patent: Improved fuel additives (crystal fitting). WO88/02393.
  • Patent: Rossi, Rehrer, Oswald, Tack. Additive combinations and fuels. USP4546137.
  • Patent: Lehmann, Mears, Wiggins. Testing apparatus and method. USP5117679.
Exxon Chemical (UK & USA):
  • Lit: Roberts, Docherty, Clydesdale. Modelling the morphology of molecular crystals in the presence of tailor-made additives. J. Cryst. Growth, 141,3-4, pp443-50, 1994.
  • Lit: Lehmann. Evolution of diesel cold flow - the next frontier. SAE, 890031, 1989.
  • Lit: Book Chapter: Crystallization. Habit modification and Growth. In Advances in Industrial Crystallization, Garside, Davey & Jones, Eds., Butterworth-Heinemann, 1991.
  • Patent: Block. Additives for oils (biofuels but more general). EP629231.
  • Patent: Davies, Lombardi. Oil additives and compositions (biofuels). USP5743923.
  • Patent: Bland. Novel styrene containing polymers. Oil and fuel oil compositions. EP0613493.
  • Patent: Bland. Novel Comb-like polymers. Additives for distillate fuels and distillate fuels containing them. US Patent 5478368.
  • Lit: Roberts & Clydsdale. Computational modelling study of the growth morphology of normal alkanes and its mediation by “tailor-made” additives. Mol Cryst Liq Cryst., 248, 1, pp243-76, 1994.
  • Lit: Book Chapter: Schriver, Patil & Martella, A fullerene route to fuel additives. In Crystal Growth of Organic Materials. Myerson, Green & Meenan Eds. ACS, 1995.
  • Patent: Schriver, Martella & Patil. Substituted fullerenes as flow improvers. USP5503643
  • Patent: Patil, Francisco & Fang. Polymers having dihydroxy moieties. USP5712231.
  • Patent: Peiffer, Lundberg & Wright. Copolymers of ethylene and α-olefin macromonomers useful as fuel and lube additives. USP 6100224.
ExxonMobil (Belgium):
  • Book: Creton & Shull. Molecular architecture…response and performance of pressure sensitive adhesives. Ch9 in Polymer Thin Films
  • Patent: Clark, Shorrock, Garcia, Wilson. Petroleum resins and their production with a supported catalyst. EP1210382
  • Patent: Bons & Stuyver. Adhesive compositions and selection thereof. USP7210339
  • Patent: Lechat, Georjon, Marin, Delme, Myers, Gibert. Adhesives with improved die cutting performance. EP1299495
  • Patent: Lohse, Karandinos, Datta, et al. Polypropylene based adhesive compositions. USP 6747114
  • Patent: Schauder, Lierde, Schroeyers. Polymer compositions and manufacture thereof. USP8236878
  • Patent: Van den Bosche. Heat sealable compositions and uses thereof. USP. 7495048.
  • Patent: Vanderstappen, Van den Bosche. Protective films. WO2003/039860.
  • Patent: Macedo, Van den Bosche, Schroeyers. Improved surface treatment of polymeric articles. EP1769027
  • Patent: Kuo, Chien. Polypropylene films. USP7314901.
  • Patent: Gallez, Jourdain, Reynolds, Stella. Elastomer containing aromatic resins. EP1259574.
  • Patent: Macedo & Shutt. Adhesive components and process for manufacture. WO2003/025038.
  • Patent: Lohse, Georjon, et al. Alpha-olefin inter-polymers. USP7067603.
  • Patent: Abhari, Sims, Tse, et al. Polyolefin compositions and articles made therefrom. USP7700707.
Infineum (UK):
  • Lit: Camp, Farrow, Dowding. The effects of surface curvature on the adsorption of surfactants at the solid-liquid interface. Phys. Chem. Chem. Phys., 2013,15, 11653-11660
  • Patent: Waterson, Wright, Theaker, Scott, Kay. Additives for fuels and oils comprising functionalized di-block copolymers. EP12175622.5-2104.

Lewtas Science & Technologies, UoWarwick, UoEdinburgh (UK): ( www.lewtas-scitech.com )

  • Lit: Camp, Bradley-Shaw, Dowding. Glycerol Monooleate Reverse Micelles in Nonpolar Solvents: Computer Simulations and Small-Angle Neutron Scattering. J. Phys. Chem. B 2015, 119, 4321−4331.
  • Lit: Camacho-Corzo, Roberts, More. The crystal morphology and growth rates of triclinic n-docosane crystallising from n-dodecane solutions. J Cryst Growth, 416, 47-56, 2015.
  • Patent: Georjon, et al. Polypropylene based compositions, U.S. Patent No.: 8,383,731