In the first three editions of this column, the groundwork for better understanding the nature of polymers – vis-à-vis lower molecular mass materials – was laid. In this edition, we will look at factors that chemists, chemical engineers and materials scientists can, in principle, manipulate to change polymer properties. These include changes that can be made in composition, … [Read more...] about Changing Polymer Properties through Manipulation
Utilizing UV Technology to Develop Medical Devices: An Overview of GMP Conformal Processes and Documentation
By Chris Davis, head of sales – Industrial Systems, IST America Complex technical processes, used in the production of medical devices, require validation if the results cannot be measured immediately. Examples of such processes are: sterilization, aseptic packaging/assembly, injection molding and UV polymerization of adhesives and varnishes. UV … [Read more...] about Utilizing UV Technology to Develop Medical Devices: An Overview of GMP Conformal Processes and Documentation
Waterbased UV LED-Curable Compositions for Graphics Applications
By Jo Ann Arceneaux, Tong Wang and Hwei-Ling Yau, allnex USA Inc.; and Michel Tielemans, Kevin Poelmans and Laurence Boutreau, allnex Belgium SA/NV Abstract With the increasing regulatory pressure on acrylate monomers, the energy-curable graphics market has started to investigate the use of energy-curable waterborne resins and polyurethane dispersions (PUDs). Some products … [Read more...] about Waterbased UV LED-Curable Compositions for Graphics Applications
Facile One-Step Synthesis of Photocurable Urethane Acrylates
By Igor V. Khudyakov, PhD, DSc, Research and Development Director, Performance Coatings International Laboratories Introduction Urethane acrylates (methacrylates) are valuable oligomers widely used in industry. They are used in adhesives, protective and decorative coatings, dental fillings, labels, inks and as coatings for optical fiber. As review, synthesis of the most … [Read more...] about Facile One-Step Synthesis of Photocurable Urethane Acrylates
Regulatory News
Changes to Public Availability of TSCA Section 5 Submissions The US Environmental Protection Agency (EPA) is moving to a real-time system of providing information to the public as part of a commitment to ensure transparency in its program. Starting May 30, 2019, EPA began publishing Toxic Substances Control Act (TSCA) Section 5 (PMN, MCAN and SNUN) notices and attachments – … [Read more...] about Regulatory News