GB1338764A - Optical elements - Google Patents

Optical elements

Info

Publication number
GB1338764A
GB1338764A GB5643770A GB5643770A GB1338764A GB 1338764 A GB1338764 A GB 1338764A GB 5643770 A GB5643770 A GB 5643770A GB 5643770 A GB5643770 A GB 5643770A GB 1338764 A GB1338764 A GB 1338764A
Authority
GB
United Kingdom
Prior art keywords
solution
ethanol
tetrabutyl ammonium
aqueous
mixture
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
GB5643770A
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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
Application filed by Polaroid Corp filed Critical Polaroid Corp
Publication of GB1338764A publication Critical patent/GB1338764A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/08—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/42—Polarizing, birefringent, filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2551/00—Optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Filters (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Eyeglasses (AREA)

Abstract

1338764 Tetrabutyl ammonium derivatives of nickel salts of hydroxythiophenols POLAROID CORP 27 Nov 1970 [28 Nov 1969] 56437/70 Heading C2C [Also in Divisions B5 and G2] The preparation of compounds useful as IR absorbers (see Division G2) is described. In Example 1, a compound of formula is prepared by adding an aqueous nickel nitrate solution to a solution of 1-mercapto-2-naphthol and KOH in ethanol; adding to this mixture tetrabutyl ammonium bromide dissolved in ethanol; adding acetone to this; bubbling air through the resultant mixture and filtering. The resulting precipitate is then recrystallized, and has a melting point of 184-188 degrees. In Example 2, a compound of formula is prepared by adding a solution of nickel nitrate in aqueous ethanol to a solution of o-mercaptophenol and NaOH in aqueous ethanol; adding a solution of tetrabutyl ammonium bromide in ethanol, bubbling air through the resulting mixture; collecting the precipitate; and recrystallizing. The melting point is 184-188‹ C.
GB5643770A 1969-11-28 1970-11-27 Optical elements Expired GB1338764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88061469A 1969-11-28 1969-11-28

Publications (1)

Publication Number Publication Date
GB1338764A true GB1338764A (en) 1973-11-28

Family

ID=25376672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5643770A Expired GB1338764A (en) 1969-11-28 1970-11-27 Optical elements

Country Status (11)

Country Link
JP (1) JPS5023388B1 (en)
AT (1) AT314867B (en)
BE (1) BE759538A (en)
CA (1) CA943333A (en)
CH (1) CH538124A (en)
DE (1) DE2058252C3 (en)
FR (1) FR2073433B1 (en)
GB (1) GB1338764A (en)
NL (1) NL168624C (en)
SE (1) SE364465B (en)
ZA (1) ZA707995B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801888A1 (en) * 1977-12-16 1979-06-21 Bbc Brown Boveri & Cie POLARIZER FOR AN ELECTRO-OPTICALLY ACTIVATED CELL AND METHOD FOR MANUFACTURING IT
US4702945A (en) * 1984-08-10 1987-10-27 Basf Aktiengesellschaft Optical recording medium

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2223843C2 (en) * 1972-05-16 1983-11-10 Polaroid Corp., 02139 Cambridge, Mass. Composite window construction
JPS6089233U (en) * 1983-11-25 1985-06-19 山本　一成 toothpaste
JPS6360430U (en) * 1986-10-09 1988-04-22
WO2014069412A1 (en) * 2012-10-29 2014-05-08 大学共同利用機関法人情報・システム研究機構 Anti-face detection item

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2801888A1 (en) * 1977-12-16 1979-06-21 Bbc Brown Boveri & Cie POLARIZER FOR AN ELECTRO-OPTICALLY ACTIVATED CELL AND METHOD FOR MANUFACTURING IT
US4702945A (en) * 1984-08-10 1987-10-27 Basf Aktiengesellschaft Optical recording medium

Also Published As

Publication number Publication date
FR2073433B1 (en) 1974-08-23
NL168624B (en) 1981-11-16
FR2073433A1 (en) 1971-10-01
CA943333A (en) 1974-03-12
NL168624C (en) 1982-04-16
DE2058252B2 (en) 1978-03-09
JPS5023388B1 (en) 1975-08-07
SE364465B (en) 1974-02-25
ZA707995B (en) 1971-08-25
CH538124A (en) 1973-06-15
NL7017368A (en) 1971-06-02
DE2058252A1 (en) 1971-06-03
DE2058252C3 (en) 1978-11-09
AT314867B (en) 1974-04-25
BE759538A (en) 1971-05-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee