GB1104823A - Photochromic compositions and methods for preparation thereof - Google Patents

Photochromic compositions and methods for preparation thereof

Info

Publication number
GB1104823A
GB1104823A GB40839/65A GB4083965A GB1104823A GB 1104823 A GB1104823 A GB 1104823A GB 40839/65 A GB40839/65 A GB 40839/65A GB 4083965 A GB4083965 A GB 4083965A GB 1104823 A GB1104823 A GB 1104823A
Authority
GB
United Kingdom
Prior art keywords
compound
transition metal
solvent
many
certain alkyl
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.)
Expired
Application number
GB40839/65A
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 US399101A external-priority patent/US3370026A/en
Priority claimed from US399087A external-priority patent/US3359226A/en
Priority claimed from US417234A external-priority patent/US3355294A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB1104823A publication Critical patent/GB1104823A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L59/00—Compositions of polyacetals; Compositions of derivatives of polyacetals
    • C08L59/02—Polyacetals containing polyoxymethylene sequences only
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/10—Metal compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
    • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
    • G03C1/733—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds with macromolecular compounds as photosensitive substances, e.g. photochromic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

A photochromic composition comprises a mixture of an organic polymer and a transition metal compound having the stoichiometric formula MXmOn(OR)p, where M is a transition metal (Ti, Zr, W, Hf, Ta, Nb, V, Cr), X is a halogen and R is either one of certain alkyl or aryl radicles or <FORM:1104823/C4-C5/1> where R1 is one of certain alkyl or aryl radicles; m, p are 0-6, but at least one is 1 or more, and n is 0-2; at least trace amounts of free or combined oxygen must be present in addition to the compound. The preferred polymer is polymethylmethacrylate but many others including polystyrenes, polyamides and polyurethanes are mentioned as suitable. Typical transition metal compounds among many are WCl6, NbCl5, VO2Br, HfI3(OC6H5). A solvent such as dioxane or ethyl acetate (but not water) may be added and also a bleaching addition consisting of a metal salt of (e.g. the chloride) Fe, Tl, Mn, Ce, Rh, Ir, typically at 5% of the transition compound; the additional oxygen may be present in either the solvent or the catalyst. 127 examples are given. The compositions may be used for example in window panes, wind-screens, sunglasses, memory devices and optical masks.
GB40839/65A 1964-09-24 1965-09-24 Photochromic compositions and methods for preparation thereof Expired GB1104823A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US39907364A 1964-09-24 1964-09-24
US399101A US3370026A (en) 1964-09-24 1964-09-24 Method of producing photochromic castings
US399087A US3359226A (en) 1964-09-24 1964-09-24 Method for production of a moldable photochromic composition
US417234A US3355294A (en) 1964-12-09 1964-12-09 Photochromic compositions containing bleaching rate accelerators

Publications (1)

Publication Number Publication Date
GB1104823A true GB1104823A (en) 1968-02-28

Family

ID=27503430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40839/65A Expired GB1104823A (en) 1964-09-24 1965-09-24 Photochromic compositions and methods for preparation thereof

Country Status (4)

Country Link
BE (1) BE669972A (en)
DE (1) DE1544626A1 (en)
GB (1) GB1104823A (en)
NL (1) NL6511295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080338A2 (en) * 1981-11-19 1983-06-01 Ppg Industries, Inc. Polymerization of polyol (allyl carbonate) using polymerization initiators of short and long half lives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010022219A1 (en) * 2010-05-21 2011-11-24 Thorsten Graf A method of making a reversible hue change coating composition for the UV light absorbing equipment of substrates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080338A2 (en) * 1981-11-19 1983-06-01 Ppg Industries, Inc. Polymerization of polyol (allyl carbonate) using polymerization initiators of short and long half lives
EP0080338A3 (en) * 1981-11-19 1983-07-20 Ppg Industries, Inc. Polymerization of polyol (allyl carbonate) using polymerization initiators of short and long half lives

Also Published As

Publication number Publication date
BE669972A (en) 1966-03-22
DE1544626A1 (en) 1969-05-08
NL6511295A (en) 1966-03-25

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