T
Todd R. Williams
Researcher at 3M
Publications - 16
Citations - 507
Todd R. Williams is an academic researcher from 3M. The author has contributed to research in topics: Lens (geology) & Glass transition. The author has an hindex of 8, co-authored 16 publications receiving 507 citations.
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Patent
Prevention of groove tip deformation in brightness enhancement film
TL;DR: In this article, a microstructure bearing article is produced that includes the steps of molding the micro-structure on the base, curing the resin that forms the micro structure, and heat treating the microstructures.
Patent
Ophthalmic devices fabricated from urethane acrylates of polysiloxane alcohols
TL;DR: In this paper, a process for the preparation of polysiloxane copolymers with at least one urethane acrylate substituent is described. But the process is restricted to poly(organosiloxane) alcohols.
Patent
Preloaded thermoplastic dental impression tray
TL;DR: A preloaded impression tray (5a) comprising a thermoplastic impression material (7) at least partially enveloped by a shell (1a), the impression material being a plasticized solid and having: (i) a softening point that comfortably can be withstood by oral tissues, (ii) sufficient depth in the shell and fluidity when softened to conform accurately to adult dentition and the gingival margin, and (iii) sufficient strength and flexibility when resolidified in the mouth to permit removal of impression material from teeth without tearing or undesirable distortion RE
Patent
Scratch resistant optical films and method for producing same
TL;DR: In this paper, a scratch resistant backlit display is made from a layer of crosslinkable oligomeric resins on a base, and cured to an extent that the film exhibits a haze decrease of less than or equal to 60 percent after abrading according to the ASTM D-968-81 procedure using 200 milliliters of sand.
Patent
Thermoplastic lens blocking material
Sharon R. Benjamin,Michael Govek,Patrick D. Hyde,John H. Ko,Philip G. Martin,Joel D. Oxman,William L. Parrish,Carole Sedlock,Richard L. Severance,F. Andrew Ubel,Todd R. Williams +10 more
TL;DR: In this article, thermoplastic ophthalmic lens blocking compositions have been proposed that have many advantages over traditional metal alloy materials, such as homopolymer or copolymer of epsilon-caprolactone, have average molecular weight between 3,000 and 100,000, and polydispersity less than 10.