CA2186230A1 - Liquid crystal composite and method of making - Google Patents

Liquid crystal composite and method of making

Info

Publication number
CA2186230A1
CA2186230A1 CA002186230A CA2186230A CA2186230A1 CA 2186230 A1 CA2186230 A1 CA 2186230A1 CA 002186230 A CA002186230 A CA 002186230A CA 2186230 A CA2186230 A CA 2186230A CA 2186230 A1 CA2186230 A1 CA 2186230A1
Authority
CA
Canada
Prior art keywords
liquid crystal
making
polymer matrix
crystal composite
crystal 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
CA002186230A
Other languages
French (fr)
Other versions
CA2186230C (en
Inventor
John Havens
Kathleen Dizio
Anne Gonzales
Robert H. Reamey
Harriette Atkins
Jinlong Cheng
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.)
TE Connectivity Corp
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 claimed from US08/217,268 external-priority patent/US5585947A/en
Application filed by Individual filed Critical Individual
Publication of CA2186230A1 publication Critical patent/CA2186230A1/en
Application granted granted Critical
Publication of CA2186230C publication Critical patent/CA2186230C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

A method is disclosed for making a liquid crystal composite in which droplets of a liquid crystal material are dispersed in a polymer matrix. At least one further material separates the liquid crystal material from the polymer matrix. This construction permits the polymer matrix to be selected on the basis of its environmental properties and the further material to be selected on the basis of its orientational interactions with liquid crystal material.
Light valves made from such a composite exhibit improved electro-optical properties.
CA002186230A 1994-03-24 1995-03-17 Liquid crystal composite and method of making Expired - Lifetime CA2186230C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/217,268 US5585947A (en) 1994-03-24 1994-03-24 Method of making liquid crystal composite which has interfacial material disposed between liquid crystal and encapsulating medium
US08/217,268 1994-03-24
PCT/US1995/003446 WO1995025777A1 (en) 1994-03-24 1995-03-17 Liquid crystal composite and method of making

Publications (2)

Publication Number Publication Date
CA2186230A1 true CA2186230A1 (en) 1995-09-28
CA2186230C CA2186230C (en) 2007-07-17

Family

ID=38287842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002186230A Expired - Lifetime CA2186230C (en) 1994-03-24 1995-03-17 Liquid crystal composite and method of making

Country Status (1)

Country Link
CA (1) CA2186230C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2587254A (en) * 2019-05-28 2021-03-24 Merck Patent Gmbh Compositions comprising waterborne polyurethane dispersion and nanocapsules containing a liquid-crystalline medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2587254A (en) * 2019-05-28 2021-03-24 Merck Patent Gmbh Compositions comprising waterborne polyurethane dispersion and nanocapsules containing a liquid-crystalline medium
GB2587254B (en) * 2019-05-28 2023-05-24 Merck Patent Gmbh Compositions comprising waterborne polyurethane dispersion and nanocapsules containing a liquid-crystalline medium

Also Published As

Publication number Publication date
CA2186230C (en) 2007-07-17

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Legal Events

Date Code Title Description
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MKEX Expiry

Effective date: 20150317