Vision-Ease Lens
Senior Scientist
National Starch and Chemical Company 1997 - 2000
Chemical Engineer
Cargill Feb 1997 - Jul 1997
Contract Engineer
Education:
University of Minnesota 1993 - 1997
Bachelors, Chemical Engineering
Skills:
R&D Polymers Product Development Manufacturing Materials Science Chemistry Continuous Improvement Design of Experiments Lean Manufacturing Medical Devices Process Simulation Cross Functional Team Leadership
The present invention provides a method for improving adhesion of polyorganosiloxane to plastic, such as polycarbonate substrates. In a preferred embodiment, a tertiary amine is added to a polyorganosiloxane coating composition to achieve an improved abrasion coating.
Process To Mold A Plastic Optical Article With Integrated Hard Coating
Disclosed is a process for molding plastic optical articles with a hard coated film, comprising steps of coating one side of an optical film with a hard coating, pre-curing the hard coating to a tack free state while still maintaining the coating flexibility, making an insert from the coated film for the desired optical article, molding the plastic resin onto the insert through insert injection molding, and post-curing the molded article. The utilization of the pre-curing and post-curing steps have been found to eliminate hard coating cracks during the insert making and the molding step, while providing a hard coating with desired properties. Such an optical article possesses a hard coating integrated on its surface, thus, eliminating the need to further coat the optical article.
Process To Mold A Plastic Optical Article With Integrated Hard Coating
Disclosed is a process for molding plastic optical articles with a hard coated film, comprising steps of coating one side of an optical film with a hard coating, pre-curing the hard coating to a tack free state while still maintaining the coating flexibility, making an insert from the coated film for the desired optical article, molding the plastic resin onto the insert through insert injection molding, and post-curing the molded article. The utilization of the pre-curing and post-curing steps have been found to eliminate hard coating cracks during the insert making and the molding step, while providing a hard coating with desired properties. Such an optical article possesses a hard coating integrated on its surface, thus, eliminating the need to further coat the optical article.
Process To Mold A Plastic Optical Article With Integrated Hard Coating
Disclosed is a process for molding plastic optical articles with a hard coated film, comprising steps of coating one side of an optical film with a hard coating, pre-curing the hard coating to a tack free state while still maintaining the coating flexibility, making an insert from the coated film for the desired optical article, molding the plastic resin onto the insert through insert injection molding, and post-curing the molded article. The utilization of the pre-curing and post-curing steps have been found to eliminate hard coating cracks during the insert making and the molding step, while providing a hard coating with desired properties. Such an optical article possesses a hard coating integrated on its surface, thus, eliminating the need to further coat the optical article.
Composition Of Primer Solution For Use With An Optical Article And Method Of Priming An Optical Article
A composition of silane-containing primer solution for use with an optical article, and a method of covering an optical article, that leads to improved adhesion characteristics and an extended primer solution shelf life.
Hannah Vu - New Brighton MN, US Hideyo Sugimura - North Oaks MN, US Ping Fan - Ramsey MN, US Hao Vu - New Brighton MN, US
International Classification:
B32B 27/40 B32B 37/00
US Classification:
4284231, 156242
Abstract:
A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with a isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.
- Ramsey MN, US Hannah Vu - Ramsey MN, US Harjit Bhambra - Ramsey MN, US Jeff Brown - Ramsey MN, US Richard Blacker - Ramsey MN, US
Assignee:
Vision Ease, LP - Ramsey MN
International Classification:
B29C 39/00 B29D 11/00 B29C 33/12 G02B 1/10
Abstract:
An optical lens casting gasket, wafer, and system and method that provides for more efficient formation of optical lenses employing optically functional wafers.
Optical Adhesive And Optical Laminates And Lenses Formed With Same
- Ramsey MN, US Hannah Vu - New Brighton MN, US James Mulligan - Ramsey MN, US Steven Harold Nahm - Minneapolis MN, US David J. Kissel - Andover MN, US Richard Blacker - Lino Lakes MN, US
The present invention pertains to polyurethane-urea based optical adhesives for formation of optical film laminates, optically functional film laminates, and ophthalmic or eyeglass lenses employing the same and methods for producing the same.
Dr. Vu graduated from the Western Univ of Health Sciences College of Osteopathic Medicine of the Pacific in 2003. She works in Medfield, MA and specializes in Family Medicine. Dr. Vu is affiliated with Beth Israel Deaconess Medical Center West Campus.
Dr. Vu graduated from the Univ of Ottawa, Fac of Med, Ottawa, Ont, Canada in 1991. She works in Alhambra, CA and 1 other location and specializes in Cosmetic Surgery.