Insight Equity A.p.x., L.p.

Vision Ease, LP

Hoya Optical Labs of America, Inc.

Vision-ease Lens, Inc.

Other

Hideyo Sugimura

Michael S Boulineau

Xuzhi Qin

Hannah Vu

Ping Fan

Hao Vu

Derek Harris

Thomas J Moravec

Eric J Woelfle

A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with an 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.

Photochromic polyurethane laminate

A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.

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.

A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials.

Forming method for polymeric laminated wafers comprising different film materials

A cast photochromic lens including a photochromic film and a cast resin, curable by heat or radiation.

Photochromic lens

A method of making a polymeric laminated wafer comprising different film materials that are softenable and formable at different softening temperatures corresponding with the film materials. Also disclosed is a laminated wafer wherein a first layer has different thermal properties than a second layer of the wafer.

Growing community of inventors

North Oaks, MN, United States of America

Hideyo Sugimura