Patent · US Expired

Laminated light-polarizing sheet

US4387133A · kind A · utility

61Cited by
5References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 6, 1981
Grant dateJun 7, 1983
Priority date
Expiry dateJul 6, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31935
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A laminated light-polarizing sheet comprising a film or sheet of a polymer, especially a phenoxyether polymer, laminated at least on one surface of a light-polarizing film and a transparent conductive layer formed by vacuum metal evaporation etc. on a surface of a film or sheet to the light-polarizing film, wherein the film or sheet has specified ranges of retardation value, heat distortion temperature, average visible light transmittance, water vapor permeability, Izod impact strength and degree of swelling in solvents.

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