Patent · US Expired

Light-polarizing film

US4229498A · kind A · utility

14Cited by
5References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 1979
Grant dateOct 21, 1980
Priority date
Expiry dateMar 29, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31928
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A light-polarizing film comprising a polymer mixture containing a polymer having polyene chains formed by partial dehydrohalogenation of a halogenated vinyl polymer or a halogenated vinylidene polymer and one or more of the polymers selected from the group consisting of acrylate polymers and methacrylate polymers. Said light-polarizing film has excellent heat stability as well as humidity resistance and is useful in various fields including liquid crystal device, optical device, etc.

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