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Excipient or API Melt Processing via Injection Molding

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Melt Extrusion

Part of the book series: AAPS Advances in the Pharmaceutical Sciences Series ((AAPS,volume 9))

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Abstract

This chapter first presents and discusses the physical phenomena taking place in both injection molding machines and the molds, which enable the injection molding process to produce shaped thermoplastic polymer products reproducibly, inexpensively and rapidly, with only minimum industrial waste stream. Industrial waste generated aside, it then addresses the question of whether the existing injection molding processes and equipment are appropriate for producing tablets of active pharmaceutical ingredient (API) solid solutions in polymer excipients, where the total dissolution of the API in the molten excipient, and the absence of API process-generated degradation must be guaranteed. The arguments presented indicate the need for specific modifications of the existing injection molding processes, which change and improve the melting and laminar mixing generated, to assure API dissolution, and decrease the chances of API degradation originating from the process.

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References

  • Caras FC (1963) “Spiral mold for thermosets.” Mod Plast 41:140

    Google Scholar 

  • Chabot J, Malloy RA (1997) “A history of thermoplastics injection molding. Part I—the birth of an industry”. J Inj Molding 1:1

    Google Scholar 

  • Cheng L, Guo S, Wu W (2009) “Characterization and in-vitro release of praziquantel from ε−caprolactone implants.” Int J Pharm 377:112–119

    Article  PubMed  CAS  Google Scholar 

  • Clarke AJ (2005) US Patent Application Publication No US2005/0202090 A1, assigned to GlaxoSmithKline

    Google Scholar 

  • Donovan RC (1971) Polym Eng Sci 11:353

    Article  CAS  Google Scholar 

  • Gogos CG, Liu H, Wang P (2012) Chapter 13, “Laminar dispersive and distributive mixing and applications to HME”. In Douroumis D (ed) Hot-melt extrusion. Wiley, Weinheim

    Google Scholar 

  • Gogos CG, Tadmor Z, Kim MH (1998) Melting phenomena and mechanisms in polymer processing equipment”. Adv Polym Technol 17:285–305

    Article  CAS  Google Scholar 

  • Quinten T, Vervaet C et al (2009a) “Evaluation of injection molding as a pharmaceutical technology to produce matrix tablets.” Eur J Pharm Biopharm 71:145–154

    Article  CAS  Google Scholar 

  • Quinten T, Vervaet C et al (2009b) “Development of injection molded matrix tablets based on mixtures of EC and L-HPC.” Eur J Pharm Sci 37:207–216

    Article  CAS  Google Scholar 

  • Quinten T, Vervaet C et al (2011) “Development and evaluation of injection-molded sustained-release tablets containing EC and PEO.” Drug Devel Ind Pharm 37(2):149–159

    Article  CAS  Google Scholar 

  • Rose W (1961) Fluid—fluid interfaces in steady motion”. Nature 191:242–243

    Article  Google Scholar 

  • Rothen-Weihold A et al (1989) “Injection molding versus extrusion as manufacturing technique for the preparation of biodegradable implants.” Eur J Pharm Biopharm 48(2):113–121

    Article  Google Scholar 

  • Rubin I. I (1972) Injection molding—theory and practice. Wiley—Interscience, New York

    Google Scholar 

  • Schmidt LR (1974) “A special mold and tracer technique for studying shear and extensional flows in a mold cavity during injection molding.” Polym Eng Sci 14:797

    Article  CAS  Google Scholar 

  • Tadmor Z, Gogos GG (2006) Principles of polymer processing, 2nd edn. Wiley—Interscience, New York ((a) Chapter 1; (b) Chapter 13; (c) Chapter 5 and Section 9.3; (d) Sections 5.9 and 10.3; (e) Chapter 7)

    Google Scholar 

  • Tadmor Z, Klein L (1970) Engineering principles of plasticating extrusion. Van Nostrand Reinhold Book Co., New York

    Google Scholar 

  • Tadmor Z (1974) J Appl Pol Sci 18:1753

    Article  CAS  Google Scholar 

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Correspondence to Costas G. Gogos .

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© 2013 American Association of Pharmaceutical Scientists

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Gogos, C. (2013). Excipient or API Melt Processing via Injection Molding. In: Repka, M., Langley, N., DiNunzio, J. (eds) Melt Extrusion. AAPS Advances in the Pharmaceutical Sciences Series, vol 9. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8432-5_11

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