04576612 is referenced by 60 patents and cites 9 patents.

A rosette shaped polishing pad includes a tough, flexible substrate, which is coated on one side with a layer of pressure sensitive adhesive for securing the pad to a polishing lap or the like, and on its opposite side with a flexible, water soluble matrix containing polishing particles such as cerium oxide, zirconium oxide, iron oxide, or the like, having a particle size in the range of approximately 0.5 to 15 microns. The polishing layer is produced by mixing a water soluble polyalkylene oxide/phenolic complex with an acrylic latex, and an alcohol slurry containing polishing particles in the form of, for example, cerium oxide particles. In use, water at any desired flow rate is applied to the interface between the lens which is being polished and the layer of polishing material on the pad. During the polishing operation the polyalkylene oxide/phenolic/acrylic binder or matrix slowly dissolves to release the polishing particles in a controlled manner thus providing a glass removal rate necessary to achieve an optical quality polished surface.

Title
Fixed ophthalmic lens polishing pad
Application Number
6/616175
Publication Number
4576612
Application Date
June 1, 1984
Publication Date
March 18, 1986
Inventor
Otto S de Pierne
E. Norwalk
CT, US
Carl Twickler
Milford
CT, US
Ki G Sohn
Penn Yan
NY, US
Jayendra G Shukla
Marietta
GA, US
Agent
Shlesinger Fitzsimmons & Shlesinger
Assignee
Ferro Corporation
OH, US
IPC
B24D 11/00
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