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CA2049869A1 - Light-polarizing material based on ethelenediamine polyacetic acid derivatives - Google Patents

Light-polarizing material based on ethelenediamine polyacetic acid derivatives

Info

Publication number
CA2049869A1
CA2049869A1 CA002049869A CA2049869A CA2049869A1 CA 2049869 A1 CA2049869 A1 CA 2049869A1 CA 002049869 A CA002049869 A CA 002049869A CA 2049869 A CA2049869 A CA 2049869A CA 2049869 A1 CA2049869 A1 CA 2049869A1
Authority
CA
Canada
Prior art keywords
light
ethelenediamine
acid derivatives
material based
polarizing material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002049869A
Other languages
French (fr)
Other versions
CA2049869C (en
Inventor
Joseph Aloysius Check, Iii
Robert L. Saxe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Frontiers Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US07/559,727 priority Critical patent/US5093041A/en
Priority claimed from US07/559,727 external-priority patent/US5093041A/en
Application filed by Individual filed Critical Individual
Priority to CA002049869A priority patent/CA2049869C/en
Priority to EP91402451A priority patent/EP0532809B1/en
Priority to CA002065500A priority patent/CA2065500C/en
Priority to JP10970892A priority patent/JP3209566B2/en
Publication of CA2049869A1 publication Critical patent/CA2049869A1/en
Application granted granted Critical
Publication of CA2049869C publication Critical patent/CA2049869C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Polarising Elements (AREA)

Abstract

Light-polarizing materials, and uses thereof in liquid suspensions, set suspensions and light valves.
CA002049869A 1990-07-30 1991-08-26 Light-polarizing material based on ethelenediamine polyacetic acid derivatives Expired - Fee Related CA2049869C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US07/559,727 US5093041A (en) 1990-07-30 1990-07-30 Light-polarizing material based on ethylenediamine polyacetic acid derivatives
CA002049869A CA2049869C (en) 1990-07-30 1991-08-26 Light-polarizing material based on ethelenediamine polyacetic acid derivatives
EP91402451A EP0532809B1 (en) 1990-07-30 1991-09-16 Light-polarizing material based on ethylenediamine polyacetic acid derivatives
CA002065500A CA2065500C (en) 1990-07-30 1992-04-07 Light-polarizing material based on quinaldic acid derivatives
JP10970892A JP3209566B2 (en) 1990-07-30 1992-04-28 Polarizing material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/559,727 US5093041A (en) 1990-07-30 1990-07-30 Light-polarizing material based on ethylenediamine polyacetic acid derivatives
CA002049869A CA2049869C (en) 1990-07-30 1991-08-26 Light-polarizing material based on ethelenediamine polyacetic acid derivatives
JP10970892A JP3209566B2 (en) 1990-07-30 1992-04-28 Polarizing material

Publications (2)

Publication Number Publication Date
CA2049869A1 true CA2049869A1 (en) 1993-02-27
CA2049869C CA2049869C (en) 2001-05-29

Family

ID=27168945

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002049869A Expired - Fee Related CA2049869C (en) 1990-07-30 1991-08-26 Light-polarizing material based on ethelenediamine polyacetic acid derivatives

Country Status (1)

Country Link
CA (1) CA2049869C (en)

Also Published As

Publication number Publication date
CA2049869C (en) 2001-05-29

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20100826