Patent · US Expired

Optical films incorporating cyclic olefin copolymers

US7329465B2 · kind B2 · utility

1Cited by
101References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 29, 2004
Grant dateFeb 12, 2008
Priority date
Expiry dateDec 29, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31938
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A norbomene-based cyclic olefin layer with a curable layer disposed thereon is described. The curable layer may additionally be imparted with a texture. The norbomene-based cyclic olefin films with curable layers can be incorporated into optical bodies which include an optical film, such as an oriented multilayer optical film. In addition, the invention includes a method of coating a curable layer onto a norbomene-based polymer layer or film without requiring a primer layer. Methods of making the norbomene-based cyclic olefin layer containing films are also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.