MD&M Chicago
CPG researcher Stephen Spiegelberg presented “Failure Analysis of Medical Plastics.”
CPG Acquires Variable Pressure SEM
CPG recently acquired a variable pressure scanning electron microscope (SEM). This system is useful for failure analysis of components, in that the imaging is non-destructive. Additionally, the CPG system has a cold stage, which allows the control of relative humidity and temperature in the chamber, which is useful for imaging water-containing samples such as tissue […]
CPG Acquires an ESR for Analysis of Free Radicals
Electron Spin Resonance is used to determine concentrations of free radicals in foods and materials. In the beer industry it is invaluable as a measure of how prone the beer is to “staling” where beer-derived free-radicals ultimately result in the production of carbonyl end products that result in the distinctive “off” flavor of old beer. […]
US Patent Issued to CPG
CPG was issued US Patent 8728379 in May 2014. This patent describes methods of making wear resistance, oxidatively stable polyethylene for orthopedic implants. The technology involves irradiating ultra high molecular weight polyethylene (UHMWPE) which contains Vitamin E as an antioxidant. This patent is available for license. For more information, please visit our web site.
CPG Publishes Journal Article on Vitamin E Measurement Technique for UHMWPE
CPG researchers recently published a paper on a sensitive technique to quantify Vitamin E in UHMWPE used for orthopedic applications. The article is published in the Journal of Biomedical Materials Research.
CPG Receives Patent for Highly Lubricious and Tough Hydrogels
CPG inventors were assigned US patent 8,637,063 for methods of making highly lubricious hydrogels that may be suitable for joint replacement or bearing surfaces. These hydrogels are manufactured in a novel manner by first forming an organogel, and then converting this organogel to a hydrogel. This technology is available for license, learn more here.
CPG Acquires a TGA with FTIR Analysis Accessory
CPG recently acquired a thermal gravimetric analyzer. This tool provides the ability to separate compounds from a material by their evaporation point, and also examination activation energies and ash content. In conjunction with the FTIR accessory, we can also determine the molecules begin involved. This combination of tools expands our ability to perform deformulation work, […]
CPG Receives Patent for Gradient Antioxidant UHMWPE
CPG inventors, along with inventors from the Massachusetts General Hospital, were assigned US Patent 8,569,395 for methods of making oxidation-resistant crosslinked polymeric materials. This patent discusses methods of incorporating antioxidants into UHMWPE to allow spatial control of crosslinking and antioxidant distribution, and has applications for total hip, knee, and shoulder arthroplasties. This technology is available […]