Patent Number: 8,791,222

Title: Polymeric dye for optical power limiting

Abstract: This invention concerns a polymer coating composition for use as non-focal optical power limiting dye containing polymeric materials. This composition contains: (1) one or more Modified Polymers comprising a Polymer, such as a hyperbranched polymer family, especially HB-PCS, HB-PU, HB-PUSOX or PC with one or more of: a) reverse saturable dye (RSA), b) multi-photon absorption dye (MPA), c) an azo dye, or d) absorption dye, which dye is chemically bonded to the pendant groups of the Polymer (along its chain and/or termini) or which forms a part of the backbone of the Polymer; (2) carbon nanotubes (CNT) as optical power limiters (OPL); and (3) a self-focusing component.

Inventors: Sarkar; Abhijit (Midland, MI), Dvornic; Petar R. (Midland, MI), Godschalx; James P. (Midland, MI)

Assignee: Oxazogen, Inc.

International Classification: C08G 77/60 (20060101); G02B 5/23 (20060101)

Expiration Date: 7/29/12018